MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 cea3a71806ecfdd4c4ba8a81c7cab7e2e3e30cd1da823cd3e4b145a949cc3617. 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: 20


Intelligence 20 IOCs YARA 5 File information Comments
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SHA256 hash: cea3a71806ecfdd4c4ba8a81c7cab7e2e3e30cd1da823cd3e4b145a949cc3617
SHA3-384 hash: 5c99910e7d09abb2f98fd50fa4f7692b59a94ca2e4732e779c4364eca209f2f166d081e3dae5e62624069a4151e03dd6
SHA1 hash: 02ffab52952d42981d09851fb0af805e3bdb64aa
MD5 hash: 31a75f571c3add7fb8778f266625218f
humanhash: bakerloo-crazy-jig-butter
File name:31a75f571c3add7fb8778f266625218f.exe
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:972'288 bytes
First seen:2025-03-20 08:10:10 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'744 x AgentTesla, 19'608 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 24576:REKvJcTe6BVmPX29YRxxrXM0T+h7GXwSWb:m0O5OxxrXPiGAL
Threatray 641 similar samples on MalwareBazaar
TLSH T10425120463BFA613C5771FFC0A21E17557B5ADAA6626E34B4EC8BCEB741AF000A95313
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
dhash icon f0cc8ee686aadcf0 (2 x SnakeKeylogger, 2 x MassLogger, 1 x AgentTesla)
Reporter abuse_ch
Tags:exe RemcosRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
497
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
remcos
Create hunting rule
ID:
1
File name:
31a75f571c3add7fb8778f266625218f.exe
Verdict:
Malicious activity
Analysis date:
2025-03-20 08:17:58 UTC
Tags:
rat remcos remote netreactor
Link:
https://app.any.run/tasks/0a4615a3-6123-4914-bd4f-d20850c91b86

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Win32.MalwareX-gen.28679.10607.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
92.5%
Link:
https://cyber-fortress.com/docs/result/index.php?id=67dbcd72115e7b48b48f0624
Tags:
micro shell spawn
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Сreating synchronization primitives
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
Creating a process with a hidden window
Creating a file in the %temp% directory
Launching a process
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
DNS request
Connection attempt
Sending an HTTP GET request
Connection attempt to an infection source
Sending a TCP request to an infection source
Adding an exclusion to Microsoft Defender
Enabling autorun by creating a file
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
obfuscated packed packed packer_detected vbnet
Link:
https://www.filescan.io/uploads/67dbcd7e605ea86de781c25f/reports/0ec6629b-9a6a-438b-8a45-01f460121532/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/cea3a71806ecfdd4c4ba8a81c7cab7e2e3e30cd1da823cd3e4b145a949cc3617
Result
Verdict:
SUSPICIOUS
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/94061955-9939-4f20-a243-1de80e1f099d
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
rans.troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1643987
Signature
.NET source code contains potential unpacker
Adds a directory exclusion to Windows Defender
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
Joe Sandbox ML detected suspicious sample
Loading BitLocker PowerShell Module
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
Sigma detected: Remcos
Sigma detected: Scheduled temp file as task from temp location
Suricata IDS alerts for network traffic
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AntiVM3
Yara detected Remcos RAT
Yara detected UAC Bypass using CMSTP
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1643987 Sample: QrTtmzYYNT.exe Startdate: 20/03/2025 Architecture: WINDOWS Score: 100 51 geoplugin.net 2->51 59 Suricata IDS alerts for network traffic 2->59 61 Found malware configuration 2->61 63 Malicious sample detected (through community Yara rule) 2->63 65 10 other signatures 2->65 8 QrTtmzYYNT.exe 7 2->8         started        12 yYVgLIENPs.exe 5 2->12         started        14 svchost.exe 1 1 2->14         started        signatures3 process4 dnsIp5 39 C:\Users\user\AppData\...\yYVgLIENPs.exe, PE32 8->39 dropped 41 C:\Users\...\yYVgLIENPs.exe:Zone.Identifier, ASCII 8->41 dropped 43 C:\Users\user\AppData\Local\...\tmp5CBE.tmp, XML 8->43 dropped 45 C:\Users\user\AppData\...\QrTtmzYYNT.exe.log, ASCII 8->45 dropped 67 Uses schtasks.exe or at.exe to add and modify task schedules 8->67 69 Adds a directory exclusion to Windows Defender 8->69 71 Injects a PE file into a foreign processes 8->71 17 QrTtmzYYNT.exe 3 13 8->17         started        21 powershell.exe 23 8->21         started        23 schtasks.exe 1 8->23         started        29 2 other processes 8->29 73 Multi AV Scanner detection for dropped file 12->73 75 Contains functionality to bypass UAC (CMSTPLUA) 12->75 77 Contains functionalty to change the wallpaper 12->77 79 4 other signatures 12->79 25 yYVgLIENPs.exe 12->25         started        27 schtasks.exe 1 12->27         started        53 127.0.0.1 unknown unknown 14->53 file6 signatures7 process8 dnsIp9 47 192.3.176.138, 49681, 57668 AS-COLOCROSSINGUS United States 17->47 49 geoplugin.net 178.237.33.50, 49682, 80 ATOM86-ASATOM86NL Netherlands 17->49 55 Detected Remcos RAT 17->55 57 Loading BitLocker PowerShell Module 21->57 31 WmiPrvSE.exe 21->31         started        33 conhost.exe 21->33         started        35 conhost.exe 23->35         started        37 conhost.exe 27->37         started        signatures10 process11
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/cea3a71806ecfdd4c4ba8a81c7cab7e2e3e30cd1da823cd3e4b145a949cc3617
Detection:
remcos
Create hunting rule
Link:
https://mwdb.cert.pl/sample/cea3a71806ecfdd4c4ba8a81c7cab7e2e3e30cd1da823cd3e4b145a949cc3617/
Threat name:
ByteCode-MSIL.Trojan.Taskun
Create hunting rule
Status:
Malicious
First seen:
2025-03-20 08:10:27 UTC
File Type:
PE (.Net Exe)
Extracted files:
7
AV detection:
16 of 24 (66.67%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=z2r2ogag5t65jrf2rka4psvx4lr6gdgr3kbdzu7ewfc2ssomgylq._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
unc_loader_037
Create hunting rule
Similar samples:
1c80bf8e780ae58203e7f816c8fe04f66df434a3fbd981ba7c6e52e588622c03
RemcosRAT
51c0bcbc40451c10e3b56df10853156378e8dbfb32ee63ea936737d42818822c
RemcosRAT
b3a40331524394846d2782f1e52e1410ce1681283f8c715373bab73c84fa30ec
RemcosRAT
cea3a71806ecfdd4c4ba8a81c7cab7e2e3e30cd1da823cd3e4b145a949cc3617
RemcosRAT
ea3d846cce6aa910a7ff04f5908946c735f94c41576c4cf44ced9c6304491861
RemcosRAT
error
RemcosRAT
+ 631 additional samples on MalwareBazaar
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos botnet:remotehost discovery execution rat
Link:
https://tria.ge/reports/250320-j2wr2axyc1/
Behaviour
Scheduled Task/Job: Scheduled Task
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
Remcos family
Malware Config
C2 Extraction:
192.3.176.138:57668
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/819505a1-17c9-450a-b4b6-1df870f9f7b1
Unpacked files
SH256 hash:
cea3a71806ecfdd4c4ba8a81c7cab7e2e3e30cd1da823cd3e4b145a949cc3617
MD5 hash:
31a75f571c3add7fb8778f266625218f
SHA1 hash:
02ffab52952d42981d09851fb0af805e3bdb64aa
Link:
https://www.unpac.me/results/bae74c57-7aa6-4183-a8c4-6f283654be93/
SH256 hash:
ed7090c87927967c08f1c0b861b1c21ed1cd0885227c31bb4e52e857f657b667
MD5 hash:
ab04dbde3ab78a30cd8ef476fd5e2ee5
SHA1 hash:
2ea3e35075a11b8f762272f19d4efae3caeafc5e
Detections:
SUSP_OBF_NET_Reactor_Indicators_Jan24
Create hunting rule
Link:
https://www.unpac.me/results/bae74c57-7aa6-4183-a8c4-6f283654be93/
Parent samples :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 hash:
d1a6e7015a09375d9f05531db65149de71bda9a35299b42b1922d2dd8f9f02d1
MD5 hash:
2a4daff340c808790040217476ec287e
SHA1 hash:
c205db671c33533f05d5440962408612f1a7c552
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/bae74c57-7aa6-4183-a8c4-6f283654be93/
SH256 hash:
a351cf321443077cc435ccce35bed93ae9327422a4177de960f8ee311e64bd7e
MD5 hash:
0d6694341fe3c622c6869d9a5fb60604
SHA1 hash:
d43fd3fe0c999cb945051374bce4012dd3558442
Detections:
win_remcos_w0
Create hunting rule
win_remcos_auto
Create hunting rule
Remcos
Create hunting rule
malware_windows_remcos_rat
Create hunting rule
win_remcos_rat_unpacked
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM
Create hunting rule
Link:
https://www.unpac.me/results/bae74c57-7aa6-4183-a8c4-6f283654be93/
Parent samples :
cea3a71806ecfdd4c4ba8a81c7cab7e2e3e30cd1da823cd3e4b145a949cc3617
6c2642c1e81ef61c6d6a8fd297bb7fae17dc49051a51d28c99b6b23afc7876fa
Malware family:
Remcos
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/cea3a71806ec/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/cea3a71806ecfdd4c4ba8a81c7cab7e2e3e30cd1da823cd3e4b145a949cc3617

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
Rule name:Sus_Obf_Enc_Spoof_Hide_PE
Create hunting rule
Author:XiAnzheng
Description:Check for Overlay, Obfuscating, Encrypting, Spoofing, Hiding, or Entropy Technique(can create FP)

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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