MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 248653074d88fac18a59e758a14fac1c0dcb8af24f32b17a43a15222cf93576e. 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 YARA 6 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 248653074d88fac18a59e758a14fac1c0dcb8af24f32b17a43a15222cf93576e
SHA3-384 hash: 44b5ed3de9176e3bd12c3be213701b854eebc614ee5e53bbaeac08376306b30978ca38df69a8f6520e9800fb2150d87f
SHA1 hash: 6abb28614be7035275e5bd3a3f37e0d5a733c083
MD5 hash: 02e47dfd1294ce31f13dba280c0a67b5
humanhash: arizona-delta-arizona-winter
File name:01_extracted.exe
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:1'368'064 bytes
First seen:2024-08-12 13:07:43 UTC
Last seen:2024-08-14 08:45:52 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 948cc502fe9226992dce9417f952fce3 (1'182 x CredentialFlusher, 446 x Formbook, 231 x AgentTesla)
ssdeep 24576:0qDEvCTbMWu7rQYlBQcBiT6rprG8aR1qE5nfd3oSGnVm+Wf:0TvC/MTQYxsWR7aRVSS+I+
Threatray 2'786 similar samples on MalwareBazaar
TLSH T17A55C00273C1D062FFAB92334B9AF6115BBC69260127A61F13981DBDBD701B1563E7A3
TrID 68.8% (.CPL) Windows Control Panel Item (generic) (57583/11/19)
12.5% (.EXE) Win64 Executable (generic) (10523/12/4)
6.0% (.EXE) Win16 NE executable (generic) (5038/12/1)
5.3% (.EXE) Win32 Executable (generic) (4504/4/1)
2.4% (.EXE) OS/2 Executable (generic) (2029/13)
File icon (PE):PE icon
dhash icon aae2f3e38383b629 (2'034 x Formbook, 1'183 x CredentialFlusher, 666 x AgentTesla)
Reporter Racco42
Tags:exe RemcosRAT

Intelligence

File Origin
# of uploads :
2
# of downloads :
445
Origin country :
IT IT
Vendor Threat Intelligence
Malware family:
remcos
Create hunting rule
ID:
1
File name:
01_extracted.exe
Verdict:
Malicious activity
Analysis date:
2024-08-12 13:09:32 UTC
Tags:
rat remcos evasion stealer keylogger
Link:
https://app.any.run/tasks/3337c8a0-213f-4f3e-a171-d023f1d3de9b

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
Win.Malware.Silentall-10034109-0
Create hunting rule

SecuriteInfo.com.Trojan.Generic.33203615.28472.17882.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
99.1%
Link:
https://cyber-fortress.com/docs/result/index.php?id=66ba0934aa5b40be0aa01a20
Tags:
Generic Stealth Trojan Malware
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Creating a file in the %temp% directory
Creating a file
Creating a process from a recently created file
Сreating synchronization primitives
DNS request
Connection attempt
Sending a custom TCP request
Sending an HTTP GET request
Reading critical registry keys
Unauthorized injection to a recently created process
Unauthorized injection to a recently created process by context flags manipulation
Stealing user critical data
Enabling autorun by creating a file
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
autoit epmicrosoft_visual_cc fingerprint keylogger lolbin microsoft_visual_cc packed shell32
Link:
https://www.filescan.io/uploads/66ba09332242e5f34ca36aae/reports/d62bfc61-8186-4428-b78d-1b0d3d5968e6/overview
Verdict:
Malicious
Labled as:
Trojan.Generic
Link:
https://www.hybrid-analysis.com/sample/248653074d88fac18a59e758a14fac1c0dcb8af24f32b17a43a15222cf93576e
Result
Verdict:
MALICIOUS
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/36584a75-7d80-4135-b876-66d304f32615
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
rans.phis.troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1491590
Signature
AI detected suspicious sample
Binary is likely a compiled AutoIt script file
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
Delayed program exit found
Detected Remcos RAT
Drops VBS files to the startup folder
Found API chain indicative of sandbox detection
Found malware configuration
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 domain / URL
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sigma detected: Drops script at startup location
Sigma detected: Remcos
Sigma detected: WScript or CScript Dropper
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Instant Messenger accounts or passwords
Tries to steal Mail credentials (via file / registry access)
Uses dynamic DNS services
Windows Scripting host queries suspicious COM object (likely to drop second stage)
Yara detected Remcos RAT
Yara detected UAC Bypass using CMSTP
Yara detected WebBrowserPassView password recovery tool
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1491590 Sample: 01_extracted.exe Startdate: 12/08/2024 Architecture: WINDOWS Score: 100 36 ocservice.duckdns.org 2->36 38 geoplugin.net 2->38 54 Multi AV Scanner detection for domain / URL 2->54 56 Found malware configuration 2->56 58 Malicious sample detected (through community Yara rule) 2->58 62 11 other signatures 2->62 8 01_extracted.exe 6 2->8         started        12 wscript.exe 1 2->12         started        signatures3 60 Uses dynamic DNS services 36->60 process4 file5 30 C:\Users\user\AppData\Local\...\name.exe, PE32 8->30 dropped 72 Binary is likely a compiled AutoIt script file 8->72 74 Found API chain indicative of sandbox detection 8->74 14 name.exe 3 20 8->14         started        76 Windows Scripting host queries suspicious COM object (likely to drop second stage) 12->76 19 name.exe 2 12->19         started        signatures6 process7 dnsIp8 40 ocservice.duckdns.org 188.165.120.122, 49704, 49705, 49706 OVHFR France 14->40 42 geoplugin.net 178.237.33.50, 49708, 80 ATOM86-ASATOM86NL Netherlands 14->42 32 C:\Users\user\AppData\Roaming\...\name.vbs, data 14->32 dropped 34 C:\ProgramData\evferf\logs.dat, data 14->34 dropped 44 Multi AV Scanner detection for dropped file 14->44 46 Contains functionality to bypass UAC (CMSTPLUA) 14->46 48 Detected Remcos RAT 14->48 52 11 other signatures 14->52 21 name.exe 1 14->21         started        24 name.exe 1 14->24         started        26 name.exe 2 14->26         started        28 3 other processes 14->28 50 Binary is likely a compiled AutoIt script file 19->50 file9 signatures10 process11 signatures12 64 Binary is likely a compiled AutoIt script file 21->64 66 Tries to steal Instant Messenger accounts or passwords 21->66 68 Tries to steal Mail credentials (via file / registry access) 21->68 70 Tries to harvest and steal browser information (history, passwords, etc) 24->70
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/248653074d88fac18a59e758a14fac1c0dcb8af24f32b17a43a15222cf93576e
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/248653074d88fac18a59e758a14fac1c0dcb8af24f32b17a43a15222cf93576e/
Threat name:
Win32.Backdoor.Remcos
Create hunting rule
Status:
Malicious
First seen:
2024-08-02 17:43:00 UTC
File Type:
PE (Exe)
Extracted files:
28
AV detection:
23 of 24 (95.83%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=esdfgb2nrd5mdcsz45mkct5mdqg4xcxsj4zlc6sdufjcft4tk5xa._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Similar samples:
50eca9149b4ca5e7ae52720cf8827515a1be68e3d8df8606ad5a49ce0cce4b7f
RemcosRAT
6b4d0ff0d2bb85c989bd090151a64651f0520709840a0b646168166f5ad5f10a
RemcosRAT
867b98b3220ca96c65920c77d29a58e7ad4d3446db14ec334027c0400577e9f4
RemcosRAT
baa1926f8f9eb46243f4591d418581fc422268a40aec9a83fccf7e3ee2f913af
RemcosRAT
ff0c2713415e355426261381aa3f3dcad5a913871e5bb6c1c48d5edea210fcfd
RemcosRAT
+ 2'776 additional samples on MalwareBazaar
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos botnet:remotehost collection credential_access discovery rat spyware stealer
Link:
https://tria.ge/reports/240812-qc8hvsscqm/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
System Location Discovery: System Language Discovery
AutoIT Executable
Suspicious use of SetThreadContext
Accesses Microsoft Outlook accounts
Drops startup file
Executes dropped EXE
Loads dropped DLL
Reads user/profile data of web browsers
Credentials from Password Stores: Credentials from Web Browsers
Detected Nirsoft tools
NirSoft MailPassView
NirSoft WebBrowserPassView
Remcos
Malware Config
C2 Extraction:
ocservice.duckdns.org:6622
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/b8bca5b8-07dd-4957-8a2a-8b3ee60531be
Unpacked files
SH256 hash:
d1263e088cda0c350f790e19f9db7e38b143e39e1138723811b89a7d85f53771
MD5 hash:
98eb50dd3151fd1ccc97142cba064fde
SHA1 hash:
dbe0c4da5419577b248ea167257653cea5c914fe
Detections:
Remcos
Create hunting rule
win_remcos_auto
Create hunting rule
win_remcos_w0
Create hunting rule
malware_windows_remcos_rat
Create hunting rule
Link:
https://www.unpac.me/results/460c4ffc-8130-4927-8d58-af9031d3536d/
Parent samples :
48bc32a1d2d84b7c3f61d1839972c2d36b14d3ab30270cad4cbb4d3b04205407
d1263e088cda0c350f790e19f9db7e38b143e39e1138723811b89a7d85f53771
248653074d88fac18a59e758a14fac1c0dcb8af24f32b17a43a15222cf93576e
eb183cf5d6e217532b203ab9f336e266537828eed01c53158da95d609f4ebea6
SH256 hash:
248653074d88fac18a59e758a14fac1c0dcb8af24f32b17a43a15222cf93576e
MD5 hash:
02e47dfd1294ce31f13dba280c0a67b5
SHA1 hash:
6abb28614be7035275e5bd3a3f37e0d5a733c083
Detections:
AutoIT_Compiled
Create hunting rule
Link:
https://www.unpac.me/results/460c4ffc-8130-4927-8d58-af9031d3536d/
Malware family:
Remcos
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/248653074d88/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/248653074d88fac18a59e758a14fac1c0dcb8af24f32b17a43a15222cf93576e

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:AutoIT_Compiled
Create hunting rule
Author:@bartblaze
Description:Identifies compiled AutoIT script (as EXE). This rule by itself does NOT necessarily mean the detected file is malicious.
Rule name:DebuggerCheck__API
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:maldoc_find_kernel32_base_method_1
Create hunting rule
Author:Didier Stevens (https://DidierStevens.com)
Rule name:pe_detect_tls_callbacks
Create hunting rule

File information

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

  
Delivery method
Other

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
Reviews
IDCapabilitiesEvidence
AUTH_APIManipulates User AuthorizationADVAPI32.dll::AllocateAndInitializeSid
ADVAPI32.dll::CopySid
ADVAPI32.dll::FreeSid
ADVAPI32.dll::GetLengthSid
ADVAPI32.dll::GetTokenInformation
ADVAPI32.dll::GetAce
COM_BASE_APICan Download & Execute componentsole32.dll::CLSIDFromProgID
ole32.dll::CoCreateInstance
ole32.dll::CoCreateInstanceEx
ole32.dll::CoInitializeSecurity
ole32.dll::CreateStreamOnHGlobal
MULTIMEDIA_APICan Play MultimediaWINMM.dll::mciSendStringW
WINMM.dll::timeGetTime
WINMM.dll::waveOutSetVolume
SECURITY_BASE_APIUses Security Base APIADVAPI32.dll::AddAce
ADVAPI32.dll::AdjustTokenPrivileges
ADVAPI32.dll::CheckTokenMembership
ADVAPI32.dll::DuplicateTokenEx
ADVAPI32.dll::GetAclInformation
ADVAPI32.dll::GetSecurityDescriptorDacl
SHELL_APIManipulates System ShellSHELL32.dll::ShellExecuteExW
SHELL32.dll::ShellExecuteW
SHELL32.dll::SHFileOperationW
WIN32_PROCESS_APICan Create Process and ThreadsADVAPI32.dll::CreateProcessAsUserW
KERNEL32.dll::CreateProcessW
ADVAPI32.dll::CreateProcessWithLogonW
KERNEL32.dll::OpenProcess
ADVAPI32.dll::OpenProcessToken
ADVAPI32.dll::OpenThreadToken
WIN_BASE_APIUses Win Base APIKERNEL32.dll::TerminateProcess
KERNEL32.dll::SetSystemPowerState
KERNEL32.dll::LoadLibraryA
KERNEL32.dll::LoadLibraryW
KERNEL32.dll::LoadLibraryExW
KERNEL32.dll::GetDriveTypeW
WIN_BASE_EXEC_APICan Execute other programsKERNEL32.dll::WriteConsoleW
KERNEL32.dll::ReadConsoleW
KERNEL32.dll::SetStdHandle
KERNEL32.dll::GetConsoleCP
KERNEL32.dll::GetConsoleMode
WIN_BASE_IO_APICan Create FilesKERNEL32.dll::CopyFileExW
KERNEL32.dll::CopyFileW
KERNEL32.dll::CreateDirectoryW
KERNEL32.dll::CreateHardLinkW
IPHLPAPI.DLL::IcmpCreateFile
KERNEL32.dll::CreateFileW
WIN_BASE_USER_APIRetrieves Account InformationKERNEL32.dll::GetComputerNameW
ADVAPI32.dll::GetUserNameW
ADVAPI32.dll::LogonUserW
ADVAPI32.dll::LookupPrivilegeValueW
WIN_NETWORK_APISupports Windows NetworkingMPR.dll::WNetAddConnection2W
MPR.dll::WNetUseConnectionW
WIN_REG_APICan Manipulate Windows RegistryADVAPI32.dll::RegConnectRegistryW
ADVAPI32.dll::RegCreateKeyExW
ADVAPI32.dll::RegDeleteKeyW
ADVAPI32.dll::RegOpenKeyExW
ADVAPI32.dll::RegQueryValueExW
ADVAPI32.dll::RegSetValueExW
WIN_USER_APIPerforms GUI ActionsUSER32.dll::BlockInput
USER32.dll::CloseDesktop
USER32.dll::CreateMenu
USER32.dll::EmptyClipboard
USER32.dll::FindWindowExW
USER32.dll::FindWindowW

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