MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b4ea9fc8891fce7e255d583efa962256b0dee44df2de28f0e4d4ae8145f0ca5a. 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 5 File information Comments
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SHA256 hash: b4ea9fc8891fce7e255d583efa962256b0dee44df2de28f0e4d4ae8145f0ca5a
SHA3-384 hash: 39b75b1dcc4d89c8c2ed47c83ebfcd5982516f850c9c4ee5ce252c9fc279d5e668cc9e5405827ea0904da006e6fa988f
SHA1 hash: f4113dd8af0bc21a471273d17f4572f6d23782eb
MD5 hash: 4d6e7990958750655c63899f3b4e96aa
humanhash: dakota-apart-diet-edward
File name:b4ea9fc8891fce7e255d583efa962256b0dee44df2de28f0e4d4ae8145f0ca5a
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:948'736 bytes
First seen:2024-10-14 14:08:58 UTC
Last seen:2024-12-05 15:47:33 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'462 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 24576:gduE/JmHlhNBv7XVWJp75vbl+JtiS6AMX+:g0E/JqNZZWJp9bl+96AMO
Threatray 4'494 similar samples on MalwareBazaar
TLSH T1B61512A123F4DD29D6B403344432E37ED9615E9B91399223FFDE3D97BF1AA02165B202
TrID 71.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.2% (.EXE) Win64 Executable (generic) (10522/11/4)
6.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.3% (.EXE) Win32 Executable (generic) (4504/4/1)
2.0% (.ICL) Windows Icons Library (generic) (2059/9)
Magika pebin
File icon (PE):PE icon
dhash icon ccb2b2828bb2a280 (4 x Formbook, 2 x AgentTesla, 2 x RemcosRAT)
Reporter adrian__luca
Tags:exe RemcosRAT

Intelligence

File Origin
# of uploads :
3
# of downloads :
390
Origin country :
HU HU
Vendor Threat Intelligence
Malware family:
remcos
Create hunting rule
ID:
1
File name:
b4ea9fc8891fce7e255d583efa962256b0dee44df2de28f0e4d4ae8145f0ca5a
Verdict:
Malicious activity
Analysis date:
2024-10-14 14:08:07 UTC
Tags:
remcos
Link:
https://app.any.run/tasks/9bba6749-b4ba-4eaf-a4d8-97a1c634e354

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Trojan.Packed2.47946.29640.7428.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
99.1%
Link:
https://cyber-fortress.com/docs/result/index.php?id=670d25ff1d4ef219fa62893c
Tags:
Powershell Backdoor Micro Msil
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/670d260186f9fbacf7a09b6d/reports/5c026e92-2876-4d04-b6f9-3e951a773ca0/overview
Verdict:
Malicious
Labled as:
Trojan.Generic
Link:
https://www.hybrid-analysis.com/sample/b4ea9fc8891fce7e255d583efa962256b0dee44df2de28f0e4d4ae8145f0ca5a
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/9db15840-163c-49fd-bb7a-60ce36075dd0
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
rans.troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1533353
Signature
.NET source code contains potential unpacker
Adds a directory exclusion to Windows Defender
AI detected suspicious sample
Antivirus / Scanner detection for submitted sample
C2 URLs / IPs found in malware configuration
Contains functionality to bypass UAC (CMSTPLUA)
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
Found malware configuration
Injects a PE file into a foreign processes
Loading BitLocker PowerShell Module
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
Sigma detected: Remcos
Suricata IDS alerts for network traffic
Uses dynamic DNS services
Yara detected AntiVM3
Yara detected Remcos RAT
Yara detected UAC Bypass using CMSTP
Behaviour
Behavior Graph:
Download SVG
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/b4ea9fc8891fce7e255d583efa962256b0dee44df2de28f0e4d4ae8145f0ca5a
Detection:
remcos
Create hunting rule
Link:
https://mwdb.cert.pl/sample/b4ea9fc8891fce7e255d583efa962256b0dee44df2de28f0e4d4ae8145f0ca5a/
Threat name:
ByteCode-MSIL.Infostealer.LokiBot
Create hunting rule
Status:
Malicious
First seen:
2024-09-18 10:46:28 UTC
File Type:
PE (.Net Exe)
Extracted files:
10
AV detection:
28 of 38 (73.68%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=wtvj7sejd7hh4jk5la7pvfrck2yn5zcn6lpcr4he2sxicrpqzjna._file
Verdict:
malicious
Label(s):
unknown_loader_037
Create hunting rule
remcos
Create hunting rule
Similar samples:
36a22cbcec85d96aec5d2d078668d6f04e76407bd350969f9960e5f20a932717
RemcosRAT
b8f10c23448f6d30808e7e74322ebd4121cf2c589c86cc3b0b57df6c705a867e
RemcosRAT
c3a3e14fe23932fae3b25d5845274b981ca64a465ec56fe2f042dbfe05568d16
RemcosRAT
d3a32f2258bd5eff952576259dd78a6e73f56d52d07783d4fbc3ffd966549950
RemcosRAT
d81847976ea210269bf3c98c5b32d40ed9daf78dbb1a9ce638ac472e501647d2
RemcosRAT
+ 4'484 additional samples on MalwareBazaar
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos botnet:zynova discovery execution rat
Link:
https://tria.ge/reports/241014-rf4vhstapn/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Checks computer location settings
Command and Scripting Interpreter: PowerShell
Remcos
Malware Config
C2 Extraction:
cloudsave.duckdns.org:14645
Verdict:
Malicious
Tags:
remcos
YARA:
n/a
Link:
https://app.threat.zone/submission/29afe7fc-3621-4a9e-8e60-adab7a83d911
Unpacked files
SH256 hash:
ba5a2cbf1c63456a3a973604fd074c0c40fcdc4af8a6025cbd341ed65d8eff71
MD5 hash:
2851899c48ad905353bf6f0ad80aa832
SHA1 hash:
ad0becc13289edcf7098b7e01a6e92a1cbdbac5d
Detections:
SUSP_OBF_NET_ConfuserEx_Name_Pattern_Jan24
Create hunting rule
SUSP_OBF_NET_Reactor_Indicators_Jan24
Create hunting rule
Link:
https://www.unpac.me/results/9a430bb7-71b6-4652-bdfe-e747c128e128/
SH256 hash:
e26e8b8295e64f3d7d90c1688bcc63981568847aa6dec60ff949cb0f39d620b2
MD5 hash:
ef6d62cc604972aef8dcd6597b8f9423
SHA1 hash:
4fceadf1d2678dfbb5d454247b276222a6f7fd08
Detections:
Remcos
Create hunting rule
win_remcos_auto
Create hunting rule
win_remcos_w0
Create hunting rule
malware_windows_remcos_rat
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM
Create hunting rule
win_remcos_rat_unpacked
Create hunting rule
Link:
https://www.unpac.me/results/9a430bb7-71b6-4652-bdfe-e747c128e128/
Parent samples :
0009bc8a2fe8da5d1544b9685e1628ee13e298e821b80d426998f47c8fa96585
b4ea9fc8891fce7e255d583efa962256b0dee44df2de28f0e4d4ae8145f0ca5a
SH256 hash:
d1f4761e2e1e15fe454a70864c3aa1da7d6dc90582222bbd7e6d53d0bbee6f62
MD5 hash:
b08a9c9cb485bd7567bf062922a1e897
SHA1 hash:
3b5781fb115d06bdede80cb6ff627fde1a50d9f5
Detections:
INDICATOR_EXE_Packed_SmartAssembly
Create hunting rule
Link:
https://www.unpac.me/results/9a430bb7-71b6-4652-bdfe-e747c128e128/
Parent samples :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 hash:
b4ea9fc8891fce7e255d583efa962256b0dee44df2de28f0e4d4ae8145f0ca5a
MD5 hash:
4d6e7990958750655c63899f3b4e96aa
SHA1 hash:
f4113dd8af0bc21a471273d17f4572f6d23782eb
Link:
https://www.unpac.me/results/9a430bb7-71b6-4652-bdfe-e747c128e128/
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/b4ea9fc8891fce7e255d583efa962256b0dee44df2de28f0e4d4ae8145f0ca5a

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:NET
Create hunting rule
Author:malware-lu
Rule name:NETexecutableMicrosoft
Create hunting rule
Author:malware-lu
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash

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

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