MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 15627a894811556dd8e5f9c8af8bc8205d503673c41fd65076398ed1738a1717. 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: 19


Intelligence 19 IOCs YARA 32 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 15627a894811556dd8e5f9c8af8bc8205d503673c41fd65076398ed1738a1717
SHA3-384 hash: 13a09c19d475fd4aa8a4ac2e065bc72726081a400530bc722ab975b5785ad6723fd8163c8fdc9eb84a9225b970aee8fa
SHA1 hash: 39719020a141af5744e9cd0f6edb654fb3f69e08
MD5 hash: 09e7f186c05c01acb90d50b3a2b2985b
humanhash: uncle-saturn-beryllium-utah
File name:file
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:498'688 bytes
First seen:2025-03-13 15:23:06 UTC
Last seen:2025-03-14 09:17:50 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 41e05d591d7d93bdd5bc6d5da04da74b (52 x RemcosRAT, 1 x Expiro)
ssdeep 6144:vIlSCa0RPvRz+n8Qr1D0ZGESuHabmvHOE4mCp6qtydBnP+Y4+3sAORZGFX3Xc6dJ:v200OFp+G0imvHn3Cp6qyBP+YdsvZGP
Threatray 572 similar samples on MalwareBazaar
TLSH T154B4B001B9E2C172D57654300D2AE776DEBCBD2028358D7BB3D60D57FE30190AA39AB6
TrID 32.2% (.EXE) Win64 Executable (generic) (10522/11/4)
20.1% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
15.4% (.EXE) Win16 NE executable (generic) (5038/12/1)
13.7% (.EXE) Win32 Executable (generic) (4504/4/1)
6.2% (.EXE) OS/2 Executable (generic) (2029/13)
Magika pebin
dhash icon c4d48eaa8ad4d4f8 (1'000 x RemcosRAT, 1 x Worm.Ramnit, 1 x Vjw0rm)
Reporter jstrosch
Tags:exe RemcosRAT


Avatar
jstrosch
Found at hxxp://176.65.144[.]3/dev/kent.exe by #subcrawl

Intelligence

File Origin
# of uploads :
2
# of downloads :
298
Origin country :
CA CA
Vendor Threat Intelligence
Malware family:
remcos
Create hunting rule
ID:
1
File name:
RB6M0_file.exe
Verdict:
Malicious activity
Analysis date:
2025-03-13 15:27:08 UTC
Tags:
rat remcos remote
Link:
https://app.any.run/tasks/d21bba5b-8a26-4f21-9a23-5321057261a6

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
99.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=67d2f94a3962f1a6f470d86a
Tags:
ransomware dropper remcos virus
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Сreating synchronization primitives
Connection attempt
Sending a custom TCP request
Creating a file in the %temp% subdirectories
Launching a process
DNS request
Sending an HTTP GET request
Reading critical registry keys
Creating a file
Stealing user critical data
Unauthorized injection to a system process
Gathering data
Verdict:
Malicious
Labled as:
Trojan.Remcos
Link:
https://www.hybrid-analysis.com/sample/15627a894811556dd8e5f9c8af8bc8205d503673c41fd65076398ed1738a1717
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.
Malware family:
REMCOS
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/a1b1d4b5-5ed1-4228-b8ae-a17aa5ba473e
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
phis.troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1637433
Signature
Antivirus / Scanner detection for submitted sample
Attempt to bypass Chrome Application-Bound Encryption
C2 URLs / IPs found in malware configuration
Detected Remcos RAT
Disable UAC(promptonsecuredesktop)
Found malware configuration
Joe Sandbox ML detected suspicious sample
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
Multi AV Scanner detection for submitted file
Sample uses process hollowing technique
Sigma detected: Potential Data Stealing Via Chromium Headless Debugging
Sigma detected: Remcos
Suricata IDS alerts for network traffic
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)
Tries to steal Mail credentials (via file registry)
Writes to foreign memory regions
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: 1637433 Sample: file.exe Startdate: 13/03/2025 Architecture: WINDOWS Score: 100 30 geoplugin.net 2->30 44 Suricata IDS alerts for network traffic 2->44 46 Found malware configuration 2->46 48 Malicious sample detected (through community Yara rule) 2->48 50 9 other signatures 2->50 8 file.exe 9 26 2->8         started        signatures3 process4 dnsIp5 38 196.251.69.63, 2721, 49711, 49712 Web4AfricaZA Seychelles 8->38 40 geoplugin.net 178.237.33.50, 49714, 80 ATOM86-ASATOM86NL Netherlands 8->40 42 127.0.0.1 unknown unknown 8->42 52 Detected Remcos RAT 8->52 54 Attempt to bypass Chrome Application-Bound Encryption 8->54 56 Tries to harvest and steal browser information (history, passwords, etc) 8->56 58 4 other signatures 8->58 12 recover.exe 2 8->12         started        15 recover.exe 1 8->15         started        17 recover.exe 1 8->17         started        19 4 other processes 8->19 signatures6 process7 dnsIp8 60 Tries to steal Mail credentials (via file registry) 12->60 62 Tries to harvest and steal browser information (history, passwords, etc) 12->62 64 Tries to steal Instant Messenger accounts or passwords 15->64 66 Tries to steal Mail credentials (via file / registry access) 17->66 32 192.168.2.4, 2721, 443, 49710 unknown unknown 19->32 28 C:\ProgramData\Microsoft\...\Report.wer, Unicode 19->28 dropped 23 chrome.exe 19->23         started        26 msedge.exe 19->26         started        file9 signatures10 process11 dnsIp12 34 googlehosted.l.googleusercontent.com 142.250.181.225, 443, 49731 GOOGLEUS United States 23->34 36 clients2.googleusercontent.com 23->36
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/15627a894811556dd8e5f9c8af8bc8205d503673c41fd65076398ed1738a1717
Detection:
remcos
Create hunting rule
Link:
https://mwdb.cert.pl/sample/15627a894811556dd8e5f9c8af8bc8205d503673c41fd65076398ed1738a1717/
Threat name:
Win32.Backdoor.Remcos
Create hunting rule
Status:
Malicious
First seen:
2025-03-13 13:22:16 UTC
File Type:
PE (Exe)
Extracted files:
8
AV detection:
23 of 24 (95.83%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=cvrhvckicfkw3whf7hek7c6iebovanttyqp5mudwhghnc44kc4lq._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Similar samples:
75fed14fd61067a1c0c2a10d0eefcc349308e1f4a1993a075a9f0c768affab13
RemcosRAT
78cc96452121dc657a87c79561272f3669f781d24265a7a2ab853a5670fff80d
RemcosRAT
7f7860172d4e076099724e55875a797b9206365a4e6f52cf93f57371fd7fcc82
RemcosRAT
88d5346489cca6b4114b60889108d286c46144507e2011081e0c7080eeb18d03
RemcosRAT
b0e00df53609548413531846ab86d5e717ed814d7f57c503e49f927aabebec58
RemcosRAT
d3626bd96d6a11668a6864a514fa77ebb3372a5f88069b4aba668b773e3d6946
RemcosRAT
error
RemcosRAT
fa1c16a3024d35ebc4f6996d1791ead89a08dae2ebd87e39c9997c04613c4645
RemcosRAT
+ 562 additional samples on MalwareBazaar
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos botnet:brazil collection credential_access defense_evasion discovery rat spyware stealer trojan
Link:
https://tria.ge/reports/250313-ssj7bayns3/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
System policy modification
System Location Discovery: System Language Discovery
Drops file in Program Files directory
Suspicious use of SetThreadContext
Accesses Microsoft Outlook accounts
Reads user/profile data of web browsers
Uses browser remote debugging
Detected Nirsoft tools
NirSoft MailPassView
NirSoft WebBrowserPassView
Remcos
Remcos family
UAC bypass
Malware Config
C2 Extraction:
196.251.69.63:2721
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/0fd90e79-0c35-4250-9a12-8a8d588b6566
Unpacked files
SH256 hash:
15627a894811556dd8e5f9c8af8bc8205d503673c41fd65076398ed1738a1717
MD5 hash:
09e7f186c05c01acb90d50b3a2b2985b
SHA1 hash:
39719020a141af5744e9cd0f6edb654fb3f69e08
Detections:
win_remcos_w0
Create hunting rule
win_remcos_auto
Create hunting rule
Remcos
Create hunting rule
Link:
https://www.unpac.me/results/19abfa2f-7531-4a87-bb75-bad8236ce7a2/
Malware family:
Remcos
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/15627a894811/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/15627a894811556dd8e5f9c8af8bc8205d503673c41fd65076398ed1738a1717

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:BLOWFISH_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for Blowfish constants
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:DebuggerCheck__QueryInfo
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:Disable_Defender
Create hunting rule
Author:iam-py-test
Description:Detect files disabling or modifying Windows Defender, Windows Firewall, or Microsoft Smartscreen
Rule name:golang_bin_JCorn_CSC846
Create hunting rule
Author:Justin Cornwell
Description:CSC-846 Golang detection ruleset
Rule name:INDICATOR_EXE_Packed_MPress
Create hunting rule
Author:ditekSHen
Description:Detects executables built or packed with MPress PE compressor
Rule name:INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store
Create hunting rule
Author:ditekSHen
Description:Detects executables referencing many confidential data stores found in browsers, mail clients, cryptocurreny wallets, etc. Observed in information stealers
Rule name:INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients
Create hunting rule
Author:ditekSHen
Description:Detects executables referencing many email and collaboration clients. Observed in information stealers
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:MD5_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for MD5 constants
Rule name:meth_stackstrings
Create hunting rule
Author:Willi Ballenthin
Rule name:NET
Create hunting rule
Author:malware-lu
Rule name:nirsoft_v1
Create hunting rule
Author:RandomMalware
Rule name:pe_detect_tls_callbacks
Create hunting rule
Rule name:RANSOMWARE
Create hunting rule
Author:ToroGuitar
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:RIPEMD160_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for RIPEMD-160 constants
Rule name:SHA1_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for SHA1 constants
Rule name:TeslaCryptPackedMalware
Create hunting rule
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.

Web download

RemcosRAT

Executable exe 15627a894811556dd8e5f9c8af8bc8205d503673c41fd65076398ed1738a1717

(this sample)

  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/3474964/

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
Reviews
IDCapabilitiesEvidence
GDI_PLUS_APIInterfaces with Graphicsgdiplus.dll::GdiplusStartup
gdiplus.dll::GdipGetImageEncodersSize
gdiplus.dll::GdipGetImageEncoders
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
ADVAPI32.dll::GetTokenInformation
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::LoadLibraryW
KERNEL32.dll::LoadLibraryExW
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::RegCreateKeyExW
ADVAPI32.dll::RegCreateKeyW
ADVAPI32.dll::RegCreateKeyA
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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