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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 1a42950011efa48efad99c53904d84f0d89ee37077edce320f9781a68cfa9c4f. 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: 16


Intelligence 16 IOCs YARA 13 File information Comments

SHA256 hash: 1a42950011efa48efad99c53904d84f0d89ee37077edce320f9781a68cfa9c4f
SHA3-384 hash: f0216379a54e30e8fac72b51fb7b7d66e4b7107017a011ea9faa25b0a507c9cc2cde7de3e17789daf1e5000a761eb1c0
SHA1 hash: b20382c8f2337277c3467b07f395cda96827f497
MD5 hash: ecaf214bde2e9e856ff914ff601323eb
humanhash: bluebird-finch-princess-bravo
File name:Mwqtxjbh.exe
Download: download sample
Signature RemcosRAT
File size:1'248'768 bytes
First seen:2023-02-03 18:29:15 UTC
Last seen:2023-02-03 20:35:41 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (49'298 x AgentTesla, 20'717 x Formbook, 12'402 x SnakeKeylogger)
ssdeep 24576:TLz3VowLzh0xOxua+8uTUcQTWTbh9/+rHZ8zZQ6gqtQkBMATHXUelVE6:jVzl453DXQTZre9QRqtNRX7
Threatray 3'323 similar samples on MalwareBazaar
TLSH T1D34533092C684E7AF1449DBC952F3F571A0A5F129DBB6BEA258877D71F38A71C7820C0
TrID 71.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.2% (.EXE) Win64 Executable (generic) (10523/12/4)
6.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.3% (.EXE) Win32 Executable (generic) (4505/5/1)
2.0% (.ICL) Windows Icons Library (generic) (2059/9)
File icon (PE):PE icon
dhash icon e0c4a2a2a4bcbcf8 (15 x Loki, 13 x Formbook, 5 x SnakeKeylogger)
Reporter malwarelabnet
Tags:exe purecrypter remcos RemcosRAT

Intelligence


File Origin
# of uploads :
2
# of downloads :
239
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
ID:
1
File name:
Mwqtxjbh.exe
Verdict:
Malicious activity
Analysis date:
2023-02-03 18:30:10 UTC
Tags:
rat remcos

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Сreating synchronization primitives
Launching a process
Creating a process with a hidden window
Sending a custom TCP request
Creating a file in the %AppData% subdirectories
Unauthorized injection to a recently created process
Creating a file
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Verdict:
No Threat
Threat level:
  2/10
Confidence:
67%
Tags:
obfuscated packed
Result
Threat name:
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Detected Remcos RAT
Encrypted powershell cmdline option found
Icon mismatch, binary includes an icon from a different legit application in order to fool users
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sigma detected: Remcos
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Yara detected Costura Assembly Loader
Yara detected Remcos RAT
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 798126 Sample: Mwqtxjbh.exe Startdate: 03/02/2023 Architecture: WINDOWS Score: 100 46 Multi AV Scanner detection for domain / URL 2->46 48 Malicious sample detected (through community Yara rule) 2->48 50 Antivirus detection for URL or domain 2->50 52 10 other signatures 2->52 7 Mwqtxjbh.exe 1 5 2->7         started        11 Snmqo.exe 2 2->11         started        13 Snmqo.exe 1 2->13         started        process3 file4 34 C:\Users\user\AppData\Roaming\...\Snmqo.exe, PE32 7->34 dropped 36 C:\Users\user\...\Snmqo.exe:Zone.Identifier, ASCII 7->36 dropped 38 C:\Users\user\AppData\...\Mwqtxjbh.exe.log, ASCII 7->38 dropped 54 Encrypted powershell cmdline option found 7->54 56 Injects a PE file into a foreign processes 7->56 15 Mwqtxjbh.exe 2 7->15         started        18 powershell.exe 16 7->18         started        58 Antivirus detection for dropped file 11->58 60 Multi AV Scanner detection for dropped file 11->60 62 Machine Learning detection for dropped file 11->62 20 powershell.exe 13 11->20         started        22 Snmqo.exe 11->22         started        24 powershell.exe 13 13->24         started        26 Snmqo.exe 13->26         started        signatures5 process6 dnsIp7 40 91.231.84.41, 52651 UKRNAMES-ASUA Ukraine 15->40 42 10.5.175.21, 52651 unknown unknown 15->42 44 127.0.0.1 unknown unknown 15->44 28 conhost.exe 18->28         started        30 conhost.exe 20->30         started        32 conhost.exe 24->32         started        process8
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Status:
Malicious
First seen:
2023-02-03 10:53:28 UTC
File Type:
PE (.Net Exe)
Extracted files:
3
AV detection:
20 of 26 (76.92%)
Threat level:
  5/5
Result
Malware family:
Score:
  10/10
Tags:
family:purecrypter family:remcos botnet:mimiboy downloader loader persistence rat
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Adds Run key to start application
Checks computer location settings
Detect PureCrypter injector
PureCrypter
Remcos
Malware Config
C2 Extraction:
91.231.84.41:52651
127.0.0.1:52651
10.5.175.21:52651
Unpacked files
SH256 hash:
ef49951ae82d5cd276e0f86589f55f5ed6e07d7e4630f16be605d8915e865b3d
MD5 hash:
1497d91a8b71a8a6121f38a856ae2fb9
SHA1 hash:
513fab76c6bf4e929132ddb83732f21411dbb1bd
SH256 hash:
71dbf7e7352c1fa16c346b76cfdfdaa09c5ae85e7086728ce4b0999709165ec4
MD5 hash:
4d5711039f49980172b39cb74b2575db
SHA1 hash:
2f1bc48303af14ab200299cd07dc1af632dce5b7
Detections:
Remcos win_remcos_auto win_remcos_g0
SH256 hash:
4901183d23e6a0a40045f103b52edd3774c5e295767032f428ea17afb1b40524
MD5 hash:
34e5a1c3c4ff572a44fccb1fa7ec9616
SHA1 hash:
0e79e56b072438a98a6d6d6e40795ce2cda8432c
SH256 hash:
1a42950011efa48efad99c53904d84f0d89ee37077edce320f9781a68cfa9c4f
MD5 hash:
ecaf214bde2e9e856ff914ff601323eb
SHA1 hash:
b20382c8f2337277c3467b07f395cda96827f497
Please note that we are no longer able to provide a coverage score for Virus Total.

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:ach_RemcosRAT
Author:abuse.ch
Rule name:INDICATOR_EXE_Packed_SmartAssembly
Author:ditekSHen
Description:Detects executables packed with SmartAssembly
Rule name:INDICATOR_SUSPICIOUS_EXE_UACBypass_EventViewer
Author:ditekSHen
Description:detects Windows exceutables potentially bypassing UAC using eventvwr.exe
Rule name:malware_Remcos_strings
Author:JPCERT/CC Incident Response Group
Description:detect Remcos in memory
Rule name:Parallax
Author:@bartblaze
Description:Identifies Parallax RAT.
Rule name:pe_imphash
Rule name:Remcos
Author:kevoreilly
Description:Remcos Payload
Rule name:remcos_rat
Author:jeFF0Falltrades
Rule name:REMCOS_RAT_variants
Rule name:Skystars_Malware_Imphash
Author:Skystars LightDefender
Description:imphash
Rule name:SUSP_VBS_Wscript_Shell
Author:SECUINFRA Falcon Team
Description:Detects the definition of 'Wscript.Shell' which is often used by Malware, FPs are possible and commmon
Rule name:Windows_Trojan_Remcos_b296e965
Author:Elastic Security
Rule name:win_remcos_auto
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:Detects win.remcos.

File information


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

Comments