MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 75e57d3f76491b9bc7fe155b20ea8f9498892bd54a34824fca50bf0ae4a1902e. 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 8 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 75e57d3f76491b9bc7fe155b20ea8f9498892bd54a34824fca50bf0ae4a1902e
SHA3-384 hash: fc5db709c644647fdbc0feaf1bf822368d4664c04336d6fcdbebc5514b8a99f3898b300965665ea467719b54eaf32dde
SHA1 hash: 816027f9fbce3d22624db698ede23a2d4cc25023
MD5 hash: 4853aa5ad98757a756f1acfe1bed460d
humanhash: july-oranges-helium-steak
File name:4853aa5ad98757a756f1acfe1bed460d.exe
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:931'328 bytes
First seen:2023-08-04 03:23:21 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 24576:F+1IOE/QNWkphcu3WGMPBGqHsOGCP9xMS5RkP5:F+1XrhcuW3GqBGCP9x/5RK5
TLSH T11615236CB4ACAFA6FA28C7F59CD0E53457B1B43B6923C61CACF526F21A70BC15981503
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)
Reporter abuse_ch
Tags:exe RAT RemcosRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
303
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
remcos
Create hunting rule
ID:
1
File name:
4853aa5ad98757a756f1acfe1bed460d.exe
Verdict:
Malicious activity
Analysis date:
2023-08-04 03:23:47 UTC
Tags:
rat remcos remote keylogger
Link:
https://app.any.run/tasks/94c4d2b9-6ace-42f3-b7c1-4e5f8d66ccce

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Remcos
Create hunting rule
Link:
https://www.capesandbox.com/analysis/440192/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Connecting to a non-recommended domain
Searching for the window
Creating a window
Sending a custom TCP request
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
Сreating synchronization primitives
Setting a keyboard event handler
DNS request
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
packed remcos
Link:
https://www.filescan.io/uploads/64cc6f539d051153de133067/reports/dce37afc-9667-46b2-89b4-62075700227a/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_60%
Link:
https://www.hybrid-analysis.com/sample/75e57d3f76491b9bc7fe155b20ea8f9498892bd54a34824fca50bf0ae4a1902e
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/60256a29-8012-4a16-8740-3062e2cbb35f
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1285477
Signature
.NET source code contains potential unpacker
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Contains functionality to bypass UAC (CMSTPLUA)
Contains functionality to modify clipboard data
Contains functionality to steal Chrome passwords or cookies
Contains functionality to steal Firefox passwords or cookies
Delayed program exit found
Found malware configuration
Installs a global keyboard hook
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for submitted file
Sigma detected: Remcos
Yara detected Remcos RAT
Yara detected UAC Bypass using CMSTP
Behaviour
Behavior Graph:
Download SVG
Detection:
remcos
Create hunting rule
Link:
https://mwdb.cert.pl/sample/75e57d3f76491b9bc7fe155b20ea8f9498892bd54a34824fca50bf0ae4a1902e/
Threat name:
ByteCode-MSIL.Trojan.FormBook
Create hunting rule
Status:
Malicious
First seen:
2023-08-04 02:58:29 UTC
File Type:
PE (.Net Exe)
Extracted files:
8
AV detection:
17 of 37 (45.95%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=oxsx2p3wjenzxr76cvnsb2upssmisk6vji2iet6kkc7qvzfbsaxa._file
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos botnet:thcinc rat
Link:
https://tria.ge/reports/230804-dx2vlaac8t/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Remcos
Malware Config
C2 Extraction:
b6079658.sytes.net:6110
Unpacked files
SH256 hash:
bf07f90895592c2e90661bf8152bffa07657223f8670287307aaa47bd4086da1
MD5 hash:
d88a5f5dcd4063bc856bf8b82f08c925
SHA1 hash:
9ede034931d2c917bcbe25dfe918860db2f389f9
Link:
https://www.unpac.me/results/3c198187-aec9-4735-99ef-1c258ade76cd/
SH256 hash:
b8662f0a6a840e841369085031e8d9b54e4b1d427283ef5197ebedbff858f112
MD5 hash:
18e434ad67d3460ff74ac0a322e1d9e1
SHA1 hash:
68230c4da56f07344bd2c6ea47f004898ba20bdb
Link:
https://www.unpac.me/results/3c198187-aec9-4735-99ef-1c258ade76cd/
SH256 hash:
5b2b7aa12e065130ce1b14c34ce0bdd435e120416b75f383e09f77efed5f463e
MD5 hash:
73b66329882a8bd0360bb441591b0d30
SHA1 hash:
58232deb7af0f26e35816927d12ec2441443631d
Detections:
Remcos
Create hunting rule
win_remcos_auto
Create hunting rule
Link:
https://www.unpac.me/results/3c198187-aec9-4735-99ef-1c258ade76cd/
Parent samples :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 hash:
1f6561ec380ffbb030730f1e9c00c871871853f5069bcaaa7b11196ba18b9055
MD5 hash:
553fc0b363098b378e85da07e70e94cc
SHA1 hash:
4ff4e28e8385bacf57b79cf8036a787424f639ce
Link:
https://www.unpac.me/results/3c198187-aec9-4735-99ef-1c258ade76cd/
SH256 hash:
75e57d3f76491b9bc7fe155b20ea8f9498892bd54a34824fca50bf0ae4a1902e
MD5 hash:
4853aa5ad98757a756f1acfe1bed460d
SHA1 hash:
816027f9fbce3d22624db698ede23a2d4cc25023
Link:
https://www.unpac.me/results/3c198187-aec9-4735-99ef-1c258ade76cd/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/75e57d3f7649/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/75e57d3f76491b9bc7fe155b20ea8f9498892bd54a34824fca50bf0ae4a1902e

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:iexplorer_remcos
Create hunting rule
Author:iam-py-test
Description:Detect iexplorer being taken over by Remcos
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:pe_imphash
Create hunting rule
Rule name:Remcos
Create hunting rule
Author:kevoreilly
Description:Remcos Payload
Rule name:REMCOS_RAT_variants
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:Windows_Trojan_Remcos_b296e965
Create hunting rule
Author:Elastic Security
Rule name:win_remcos_auto
Create hunting rule
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.

Web download

RemcosRAT

Executable exe 75e57d3f76491b9bc7fe155b20ea8f9498892bd54a34824fca50bf0ae4a1902e

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/2696805/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/440192/

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