MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 0d4bf4e1a47fa2cfdb5cdc23d8a2b1552c1d82c307e1eec95297e62a478d2f2d. While MalwareBazaar tries to identify whether the sample provided is malicious or not, there is no guarantee that a sample in MalwareBazaar is malicious.

Database Entry


RemcosRAT


Vendor detections: 18


Intelligence 18 IOCs 1 YARA 18 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 0d4bf4e1a47fa2cfdb5cdc23d8a2b1552c1d82c307e1eec95297e62a478d2f2d
SHA3-384 hash: d3a8e7d15a81b9df32d95760d1e73b8eae7b6e4cfd4d4504c5c575b2914c26bfe2a4d6bf46bd6675a6b2a0e63ab623ab
SHA1 hash: 1f53024c59b6b65fcf032bd5bb69cedbdcc67dfa
MD5 hash: 23350a33531966fa6a0cf02f9c27f053
humanhash: uncle-undress-pluto-september
File name:23350a33531966fa6a0cf02f9c27f053.exe
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:477'184 bytes
First seen:2024-11-08 22:35:11 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash e77512f955eaf60ccff45e02d69234de (138 x RemcosRAT)
ssdeep 12288:JuD09AUkNIGBYYv4eK13x13nZHSRVMf139F5wIB7+IwtHwBtVxbesvZDS57G+DY:809AfNIEYsunZvZ19ZiGs
TLSH T104A4BF01F6D2C072D57625300D3AE725DEBDB9212835897FB3DA0996FE70190D63ABB2
TrID 63.7% (.CPL) Windows Control Panel Item (generic) (57583/11/19)
11.6% (.EXE) Win64 Executable (generic) (10522/11/4)
7.2% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
5.5% (.EXE) Win16 NE executable (generic) (5038/12/1)
4.9% (.EXE) Win32 Executable (generic) (4504/4/1)
Magika pebin
Reporter abuse_ch
Tags:exe RAT RemcosRAT


Avatar
abuse_ch
RemcosRAT C2:
45.32.129.178:2404

Indicators Of Compromise (IOCs)

Below is a list of indicators of compromise (IOCs) associated with this malware samples.

IOCThreatFox Reference
45.32.129.178:2404 https://threatfox.abuse.ch/ioc/1343569/

Intelligence

File Origin
# of uploads :
1
# of downloads :
11'687
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
remcos
Create hunting rule
ID:
1
File name:
23350a33531966fa6a0cf02f9c27f053.exe
Verdict:
Malicious activity
Analysis date:
2024-11-08 22:36:00 UTC
Tags:
rat remcos
Link:
https://app.any.run/tasks/5ad7720e-59cf-48c8-9f64-d700a34bee84

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
Win.Trojan.Remcos-9841897-0
Create hunting rule

Win.Trojan.Remcos-10002580-0
Create hunting rule

Verdict:
Malicious
Score:
99.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=672e92696c614f3030a3ad09
Tags:
remcos gumen
Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
Launching cmd.exe command interpreter
Creating a file
Enabling the 'hidden' option for recently created files
Launching a process
Creating a process from a recently created file
Setting a keyboard event handler
DNS request
Connection attempt
Sending a custom TCP request
Creating a window
Sending an HTTP GET request
Creating a process with a hidden window
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Blocking the User Account Control
Enabling autorun
Unauthorized injection to a system process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
cmd crypto evasive exploit explorer fingerprint fingerprint keylogger lolbin microsoft_visual_cc packed rat remcos windows
Link:
https://www.filescan.io/uploads/672e9252030d1b0aaf404ee3/reports/fa2c0629-5b05-43e9-b870-f2a4c7cb23a0/overview
Verdict:
Malicious
Labled as:
Remcos.Generic
Link:
https://www.hybrid-analysis.com/sample/0d4bf4e1a47fa2cfdb5cdc23d8a2b1552c1d82c307e1eec95297e62a478d2f2d
Gathering data
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
rans.troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1552534
Signature
AI detected suspicious sample
Allocates memory in foreign processes
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Contains functionality to bypass UAC (CMSTPLUA)
Contains functionality to inject code into remote processes
Contains functionality to register a low level keyboard hook
Contains functionality to steal Chrome passwords or cookies
Contains functionality to steal Firefox passwords or cookies
Contains functionalty to change the wallpaper
Creates a thread in another existing process (thread injection)
Creates an undocumented autostart registry key
Creates autostart registry keys with suspicious names
Creates multiple autostart registry keys
Delayed program exit found
Deletes itself after installation
Detected unpacking (changes PE section rights)
Disables UAC (registry)
Drops PE files to the user root directory
Encrypted powershell cmdline option found
Found direct / indirect Syscall (likely to bypass EDR)
Found evasive API chain (may stop execution after checking mutex)
Found malware configuration
Found stalling execution ending in API Sleep call
Hides threads from debuggers
Injects a PE file into a foreign processes
Installs a global keyboard hook
Loading BitLocker PowerShell Module
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
PE file has nameless sections
Powershell drops PE file
Query firmware table information (likely to detect VMs)
Sigma detected: PowerShell Base64 Encoded Invoke Keyword
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
Sigma detected: Suspect Svchost Activity
Sigma detected: Suspicious PowerShell Parameter Substring
Uses cmd line tools excessively to alter registry or file data
Uses whoami command line tool to query computer and username
Writes to foreign memory regions
Yara detected Remcos RAT
Yara detected UAC Bypass using CMSTP
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1552534 Sample: fK4N7E6bFV.exe Startdate: 08/11/2024 Architecture: WINDOWS Score: 100 142 Found malware configuration 2->142 144 Malicious sample detected (through community Yara rule) 2->144 146 Antivirus detection for URL or domain 2->146 148 20 other signatures 2->148 11 fK4N7E6bFV.exe 4 4 2->11         started        15 Embedit.exe 2->15         started        17 Embedit.exe 2->17         started        19 6 other processes 2->19 process3 dnsIp4 108 C:\ProgramData\...\BraveSharedUpdater.exe, PE32 11->108 dropped 110 C:\...\BraveSharedUpdater.exe:Zone.Identifier, ASCII 11->110 dropped 210 Contains functionality to bypass UAC (CMSTPLUA) 11->210 212 Creates an undocumented autostart registry key 11->212 214 Contains functionalty to change the wallpaper 11->214 224 6 other signatures 11->224 22 BraveSharedUpdater.exe 2 1 11->22         started        25 cmd.exe 1 11->25         started        112 C:\Users\user\...\myst-launcher-amd64.exe, PE32+ 15->112 dropped 114 C:\Users\user\...\myst_supervisor.exe, PE32+ 15->114 dropped 116 C:\Users\user\.mysterium-bin\myst.exe, PE32+ 15->116 dropped 216 Query firmware table information (likely to detect VMs) 15->216 218 Writes to foreign memory regions 15->218 220 Allocates memory in foreign processes 15->220 226 4 other signatures 15->226 27 cmd.exe 15->27         started        222 Detected unpacking (changes PE section rights) 17->222 126 184.28.90.27 AKAMAI-ASUS United States 19->126 128 127.0.0.1 unknown unknown 19->128 29 conhost.exe 19->29         started        31 chcp.com 19->31         started        33 tasklist.exe 19->33         started        35 findstr.exe 19->35         started        file5 signatures6 process7 signatures8 154 Antivirus detection for dropped file 22->154 156 Multi AV Scanner detection for dropped file 22->156 158 Machine Learning detection for dropped file 22->158 160 Maps a DLL or memory area into another process 22->160 37 iexplore.exe 3 19 22->37         started        42 cmd.exe 22->42         started        44 reg.exe 1 25->44         started        46 conhost.exe 25->46         started        162 Uses cmd line tools excessively to alter registry or file data 27->162 164 Writes to foreign memory regions 27->164 166 Creates a thread in another existing process (thread injection) 27->166 168 Injects a PE file into a foreign processes 27->168 48 conhost.exe 27->48         started        50 chcp.com 27->50         started        52 reg.exe 27->52         started        process9 dnsIp10 136 45.32.129.178 AS-CHOOPAUS United States 37->136 138 178.237.33.50 ATOM86-ASATOM86NL Netherlands 37->138 140 155.138.180.2 AS-CHOOPAUS United States 37->140 102 C:\Users\user\...\BraveCrashHandler[1].exe, PE32+ 37->102 dropped 104 C:\ProgramData\BraveCrashHandler.exe, PE32+ 37->104 dropped 170 Deletes itself after installation 37->170 172 Writes to foreign memory regions 37->172 174 Maps a DLL or memory area into another process 37->174 176 Installs a global keyboard hook 37->176 54 BraveCrashHandler.exe 1 37->54         started        58 svchost.exe 37->58         started        60 cmd.exe 37->60         started        178 Uses cmd line tools excessively to alter registry or file data 42->178 62 conhost.exe 42->62         started        64 reg.exe 1 42->64         started        180 Disables UAC (registry) 44->180 file11 signatures12 process13 file14 106 C:\Users\user\AppData\Local\...\8RC7YOTE.bat, ASCII 54->106 dropped 182 Detected unpacking (changes PE section rights) 54->182 184 Query firmware table information (likely to detect VMs) 54->184 186 Hides threads from debuggers 54->186 188 Found direct / indirect Syscall (likely to bypass EDR) 54->188 66 cmd.exe 1 54->66         started        190 Contains functionality to bypass UAC (CMSTPLUA) 58->190 192 Found evasive API chain (may stop execution after checking mutex) 58->192 194 Contains functionalty to change the wallpaper 58->194 198 3 other signatures 58->198 196 Uses cmd line tools excessively to alter registry or file data 60->196 69 conhost.exe 60->69         started        71 reg.exe 1 60->71         started        signatures15 process16 signatures17 150 Uses cmd line tools excessively to alter registry or file data 66->150 152 Encrypted powershell cmdline option found 66->152 73 powershell.exe 2 31 66->73         started        76 powershell.exe 66->76         started        79 powershell.exe 66->79         started        81 4 other processes 66->81 process18 file19 200 Drops PE files to the user root directory 73->200 202 Uses whoami command line tool to query computer and username 73->202 204 Loading BitLocker PowerShell Module 73->204 206 Powershell drops PE file 73->206 83 SIHClient.exe 73->83         started        86 chcp.com 73->86         started        88 whoami.exe 73->88         started        90 WmiPrvSE.exe 73->90         started        118 C:\Users\usermbedit.exe, PE32+ 76->118 dropped 120 C:\Users\user\...behaviorgraphoogleCrashHandler64.exe, PE32+ 76->120 dropped 122 C:\Users\user\...behaviorgraphoogleCrashHandler.exe, PE32+ 76->122 dropped 124 C:\Users\user\...\SheIlExperienceHost.exe, PE32+ 76->124 dropped 92 chcp.com 76->92         started        208 Creates multiple autostart registry keys 79->208 94 chcp.com 79->94         started        96 chcp.com 81->96         started        98 chcp.com 81->98         started        100 2 other processes 81->100 signatures20 process21 dnsIp22 130 13.95.31.18 MICROSOFT-CORP-MSN-AS-BLOCKUS United States 83->130 132 20.109.210.53 MICROSOFT-CORP-MSN-AS-BLOCKUS United States 83->132 134 2 other IPs or domains 83->134
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/0d4bf4e1a47fa2cfdb5cdc23d8a2b1552c1d82c307e1eec95297e62a478d2f2d
Detection:
remcos
Create hunting rule
Link:
https://mwdb.cert.pl/sample/0d4bf4e1a47fa2cfdb5cdc23d8a2b1552c1d82c307e1eec95297e62a478d2f2d/
Threat name:
Win32.Backdoor.Remcos
Create hunting rule
Status:
Malicious
First seen:
2024-11-06 01:44:32 UTC
File Type:
PE (Exe)
Extracted files:
1
AV detection:
22 of 24 (91.67%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=bvf7jynep6rm7w243qr5rivrkuwb3awda7q65skss7tcur4nf4wq._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Similar samples:
error
RemcosRAT
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos botnet:r2411 defense_evasion discovery evasion execution impact persistence ransomware rat trojan
Link:
https://tria.ge/reports/241108-2h8atstpek/
Behaviour
Checks SCSI registry key(s)
Interacts with shadow copies
Modifies registry class
Modifies registry key
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Uses Volume Shadow Copy service COM API
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Drops file in Windows directory
Suspicious use of NtSetInformationThreadHideFromDebugger
Suspicious use of SetThreadContext
Adds Run key to start application
Power Settings
Checks computer location settings
Deletes itself
Executes dropped EXE
Loads dropped DLL
Adds policy Run key to start application
Blocklisted process makes network request
Disables Task Manager via registry modification
Downloads MZ/PE file
Deletes shadow copies
Modifies Windows Defender notification settings
Remcos
Remcos family
UAC bypass
Malware Config
C2 Extraction:
cc.shinrarigs.com:2404
45.32.129.178:2404
Verdict:
Malicious
Tags:
rat remcos Win.Trojan.Remcos-9841897-0
YARA:
malware_windows_remcos_rat REMCOS_RAT_variants Remcos_Payload win_remcos_rat_unpacked Windows_Trojan_Remcos_b296e965 MAL_EXE_Remcos_RAT_Jul_22 Remcos
Link:
https://app.threat.zone/submission/42cf41f5-3e9e-4c0b-907f-d11b3f748dad
Unpacked files
SH256 hash:
0d4bf4e1a47fa2cfdb5cdc23d8a2b1552c1d82c307e1eec95297e62a478d2f2d
MD5 hash:
23350a33531966fa6a0cf02f9c27f053
SHA1 hash:
1f53024c59b6b65fcf032bd5bb69cedbdcc67dfa
Detections:
Remcos
Create hunting rule
win_remcos_auto
Create hunting rule
win_remcos_w0
Create hunting rule
Link:
https://www.unpac.me/results/11cd912a-7ab2-4d78-9ded-32ea85be5799/
Malware family:
Remcos
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/0d4bf4e1a47f/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Remcos
Score:
0.90
Link:
https://yomi.yoroi.company/submissions/0d4bf4e1a47fa2cfdb5cdc23d8a2b1552c1d82c307e1eec95297e62a478d2f2d

YARA Signatures

MalwareBazaar uses YARA rules from several public and non-public repositories, such as YARAhub and Malpedia. Those are being matched against malware samples uploaded to MalwareBazaar as well as against any suspicious process dumps they may create. Please note that only results from TLP:CLEAR rules are being displayed.

Rule name:cobalt_strike_tmp01925d3f
Create hunting rule
Author:The DFIR Report
Description:files - file ~tmp01925d3f.exe
Reference:https://thedfirreport.com
Rule name:DebuggerCheck__API
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:iexplorer_remcos
Create hunting rule
Author:iam-py-test
Description:Detect iexplorer being taken over by Remcos
Rule name:INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM
Create hunting rule
Author:ditekSHen
Description:Detects Windows exceutables bypassing UAC using CMSTP COM interfaces. MITRE (T1218.003)
Rule name:pe_detect_tls_callbacks
Create hunting rule
Rule name:Remcos
Create hunting rule
Author:kevoreilly
Description:Remcos Payload
Rule name:REMCOS_RAT_variants
Create hunting rule
Rule name:Remcos_unpacked_PulseIntel
Create hunting rule
Author:PulseIntel
Description:Remcos Payload
Rule name:ThreadControl__Context
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:Windows_Trojan_Remcos_b296e965
Create hunting rule
Author:Elastic Security
Reference:https://www.elastic.co/security-labs/exploring-the-ref2731-intrusion-set
Rule name:win_remcos_auto
Create hunting rule
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:Detects win.remcos.
Rule name:win_remcos_rat_unpacked
Create hunting rule
Author:Matthew @ Embee_Research
Description:Detects strings present in remcos rat Samples.
Rule name:win_remcos_w0
Create hunting rule
Author:Matthew @ Embee_Research
Description:Detects strings present in remcos rat Samples.
Rule name:yarahub_win_remcos_rat_unpacked_aug_2023
Create hunting rule
Author:Matthew @ Embee_Research

File information

The table below shows additional information about this malware sample such as delivery method and external references.

BLint

The following table provides more information about this file using BLint. BLint is a Binary Linter to check the security properties, and capabilities in executables.

Findings
IDTitleSeverity
CHECK_AUTHENTICODEMissing Authenticodehigh
CHECK_DLL_CHARACTERISTICSMissing dll Security Characteristics (HIGH_ENTROPY_VA)high
CHECK_NXMissing Non-Executable Memory Protectioncritical
CHECK_PIEMissing Position-Independent Executable (PIE) Protectionhigh
CHECK_TRUST_INFORequires Elevated Execution (uiAccess:None)high
Reviews
IDCapabilitiesEvidence
GDI_PLUS_APIInterfaces with Graphicsgdiplus.dll::GdiplusStartup
gdiplus.dll::GdipGetImageEncoders
gdiplus.dll::GdipGetImageEncodersSize
gdiplus.dll::GdipAlloc
MULTIMEDIA_APICan Play MultimediaWINMM.dll::mciSendStringA
WINMM.dll::mciSendStringW
WINMM.dll::PlaySoundW
WINMM.dll::waveInAddBuffer
WINMM.dll::waveInClose
WINMM.dll::waveInOpen
SECURITY_BASE_APIUses Security Base APIADVAPI32.dll::AdjustTokenPrivileges
SHELL_APIManipulates System ShellSHELL32.dll::ShellExecuteExA
SHELL32.dll::ShellExecuteW
URL_MONIKERS_APICan Download & Execute componentsurlmon.dll::URLDownloadToFileW
urlmon.dll::URLOpenBlockingStreamW
WIN32_PROCESS_APICan Create Process and ThreadsKERNEL32.dll::CreateProcessW
KERNEL32.dll::CreateProcessA
KERNEL32.dll::OpenProcess
ADVAPI32.dll::OpenProcessToken
KERNEL32.dll::WriteProcessMemory
KERNEL32.dll::CloseHandle
WININET.dll::InternetCloseHandle
WIN_BASE_APIUses Win Base APIKERNEL32.dll::TerminateProcess
KERNEL32.dll::FindFirstVolumeW
KERNEL32.dll::FindNextVolumeW
KERNEL32.dll::LoadLibraryA
KERNEL32.dll::LoadLibraryExW
KERNEL32.dll::GetDriveTypeA
WIN_BASE_EXEC_APICan Execute other programsKERNEL32.dll::AllocConsole
KERNEL32.dll::WriteConsoleW
KERNEL32.dll::ReadConsoleW
KERNEL32.dll::SetConsoleOutputCP
KERNEL32.dll::SetConsoleTextAttribute
KERNEL32.dll::SetStdHandle
WIN_BASE_IO_APICan Create FilesKERNEL32.dll::CopyFileW
KERNEL32.dll::CreateDirectoryW
KERNEL32.dll::CreateFileW
KERNEL32.dll::DeleteFileW
KERNEL32.dll::DeleteFileA
KERNEL32.dll::MoveFileExW
KERNEL32.dll::MoveFileW
WIN_BASE_USER_APIRetrieves Account InformationADVAPI32.dll::GetUserNameW
ADVAPI32.dll::LookupPrivilegeValueA
KERNEL32.dll::QueryDosDeviceW
WIN_CRYPT_APIUses Windows Crypt APIADVAPI32.dll::CryptAcquireContextA
ADVAPI32.dll::CryptGenRandom
WIN_REG_APICan Manipulate Windows RegistryADVAPI32.dll::RegCreateKeyA
ADVAPI32.dll::RegCreateKeyExW
ADVAPI32.dll::RegCreateKeyW
ADVAPI32.dll::RegDeleteKeyA
ADVAPI32.dll::RegOpenKeyExA
ADVAPI32.dll::RegOpenKeyExW
WIN_SVC_APICan Manipulate Windows ServicesADVAPI32.dll::ChangeServiceConfigW
ADVAPI32.dll::ControlService
ADVAPI32.dll::OpenSCManagerW
ADVAPI32.dll::OpenSCManagerA
ADVAPI32.dll::OpenServiceW
ADVAPI32.dll::QueryServiceConfigW
WIN_USER_APIPerforms GUI ActionsUSER32.dll::AppendMenuA
USER32.dll::EmptyClipboard
USER32.dll::OpenClipboard
USER32.dll::CreateWindowExA

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