MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 2fff352ace60c16a4f7402f015a777e7fd383d6b4759f147b6a126b390d9ff52. 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: 8


Intelligence 8 IOCs YARA 8 File information Comments
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SHA256 hash: 2fff352ace60c16a4f7402f015a777e7fd383d6b4759f147b6a126b390d9ff52
SHA3-384 hash: 7b2f73473f82303d37c6842fabf0aa8462cc4f7662f069ddfb7c873d161839d7a58b1f6e4e6b301c9ec6e13b61b3ab3d
SHA1 hash: 92b5cb755a3b03d28c33987b9ff41538ebb7bd03
MD5 hash: 9fd3126d4cccd290086c090e2537affa
humanhash: skylark-venus-eight-iowa
File name:9fd3126d4cccd290086c090e2537affa.exe
Download: download sample
Signature RemcosRAT
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File size:592'896 bytes
First seen:2020-11-09 07:41:25 UTC
Last seen:2020-11-14 18:26:53 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'600 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 12288:gtJ0VTy1Tm1bLsZ6/n+B5eTiEj27ZjclCV3Li09zDT:20lypm5IZ62B5eT29n3
Threatray 1'052 similar samples on MalwareBazaar
TLSH CEC4E18DF644C5B9D82D16B038768C3013657E7598D18B7E798DB2FA17F31A92023F2A
Reporter abuse_ch
Tags:exe RAT RemcosRAT

Intelligence

File Origin
# of uploads :
3
# of downloads :
80
Origin country :
n/a
Vendor Threat Intelligence
Detection(s):
SecuriteInfo.com.Trojan.DownLoader35.23515.23983.7757.UNOFFICIAL
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Result
Verdict:
Malware
Maliciousness:

Behaviour
Sending a UDP request
Creating a window
Creating a file
Launching a process
DNS request
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Sending a TCP request to an infection source
Unauthorized injection to a system process
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.
Result
Threat name:
Remcos
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Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/525955
Signature
Contains functionality to capture and log keystrokes
Contains functionality to inject code into remote processes
Contains functionality to steal Chrome passwords or cookies
Contains functionality to steal Firefox passwords or cookies
Creates autostart registry keys with suspicious names
Detected Remcos RAT
Drops PE files to the user root directory
Hides that the sample has been downloaded from the Internet (zone.identifier)
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
Sigma detected: Remcos
Writes to foreign memory regions
Yara detected Remcos RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 312067 Sample: DH751rIAKX.exe Startdate: 09/11/2020 Architecture: WINDOWS Score: 100 32 Malicious sample detected (through community Yara rule) 2->32 34 Detected Remcos RAT 2->34 36 Yara detected Remcos RAT 2->36 38 2 other signatures 2->38 6 DH751rIAKX.exe 1 3 2->6         started        10 ace.exe 1 2->10         started        12 ace.exe 2->12         started        process3 file4 24 C:\Users\user\ace.exe, PE32 6->24 dropped 26 C:\Users\user\ace.exe:Zone.Identifier, ASCII 6->26 dropped 28 C:\Users\user\AppData\...\DH751rIAKX.exe.log, ASCII 6->28 dropped 40 Creates autostart registry keys with suspicious names 6->40 42 Drops PE files to the user root directory 6->42 44 Writes to foreign memory regions 6->44 46 Hides that the sample has been downloaded from the Internet (zone.identifier) 6->46 14 RegAsm.exe 6->14         started        17 RegAsm.exe 2 6->17         started        48 Machine Learning detection for dropped file 10->48 50 Maps a DLL or memory area into another process 10->50 20 RegAsm.exe 10->20         started        22 RegAsm.exe 12->22         started        signatures5 process6 dnsIp7 52 Contains functionality to steal Chrome passwords or cookies 14->52 54 Contains functionality to capture and log keystrokes 14->54 56 Contains functionality to inject code into remote processes 14->56 58 Contains functionality to steal Firefox passwords or cookies 14->58 30 ndma.chickenkiller.com 213.152.161.149, 31411, 49732 GLOBALLAYERNL Netherlands 17->30 signatures8
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/2fff352ace60c16a4f7402f015a777e7fd383d6b4759f147b6a126b390d9ff52/
Threat name:
ByteCode-MSIL.Ransomware.TeslaCrypt
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Status:
Malicious
First seen:
2020-11-09 07:43:04 UTC
AV detection:
22 of 28 (78.57%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=f77tkkwomdawut3ualyblj3x476tqplli5m7cr5wuetlhegz75ja._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Similar samples:
2aca994114835d2663353454df341285535994068284d9cbbb03e2e87f388b80
RemcosRAT
3270cfe3f15d8303d43e64e082d89eabb0737af61637393ed6d4922c3cba3909
RemcosRAT
596802440276cf7c17a24c0f108f21647579ca06d6bd1299bea1b82d5121afa1
RemcosRAT
5a418e084b49b740a94d307baf45d67ac25db462fdeb80065fb60ffeb197273f
RemcosRAT
60cb0cb27fa975e50e9a2b2b5538a0b1b30070171b775ed531297b0b76268905
RemcosRAT
6d5f672d7f0f898fcbd61de854ebb606307557eccfd30b5e0cd76f689da29234
RemcosRAT
95167e64d46e5f0e9821b379aa7e412f57d14fe11e613bdcab38cb47dc217bbc
RemcosRAT
a351faaa23105c8fde3cada56019c460dd7bc8579e027dfb56ef630e0b8649c5
RemcosRAT
c583fe59628fa5aa1146213fd49234db4509dc5cc451861c9b3a314b52d9a3e7
RemcosRAT
e037b5ebac7b3ac81b3e268268dbd072784c73f178662e4a66e5e57d7e8a67c3
RemcosRAT
+ 1'042 additional samples on MalwareBazaar
Result
Malware family:
remcos
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Score:
  10/10
Tags:
family:remcos persistence rat
Link:
https://tria.ge/reports/201109-1xscqc1eqa/
Behaviour
Suspicious behavior: MapViewOfSection
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Adds Run key to start application
Remcos
Malware Config
C2 Extraction:
ndma.chickenkiller.com:31411
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
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Author:abuse.ch
Rule name:Chrome_stealer_bin_mem
Create hunting rule
Author:James_inthe_box
Description:Chrome in files like avemaria
Rule name:Keylog_bin_mem
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Author:James_inthe_box
Description:Contains Keylog
Rule name:Parallax
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Author:@bartblaze
Description:Identifies Parallax RAT.
Rule name:Remcos
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Author:JPCERT/CC Incident Response Group
Description:detect Remcos in memory
Rule name:remcos_rat
Create hunting rule
Author:jeFF0Falltrades
Rule name:REMCOS_RAT_variants
Create hunting rule
Rule name:win_remcos_auto
Create hunting rule
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:autogenerated rule brought to you by yara-signator

File information

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

Web download

RemcosRAT

Executable exe 2fff352ace60c16a4f7402f015a777e7fd383d6b4759f147b6a126b390d9ff52

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/587553/
  
Delivery method
Distributed via web download

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