MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 cb772b73e0d867d11872c40f7f25fead438f5647e73b401efb7a721ba423dfe3. 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: 17


Intelligence 17 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: cb772b73e0d867d11872c40f7f25fead438f5647e73b401efb7a721ba423dfe3
SHA3-384 hash: d097a861740140435cf9ae959c2b79df97899f6643be4dd7d4892e8fdd157340dcbd7f053fe6fa292ac825141b85f0cd
SHA1 hash: 274056d3eddd2699acc74610040cc4f2fa69f22c
MD5 hash: c7c09ee92f929654eb182af90abec952
humanhash: jig-oscar-hotel-georgia
File name:MT-501011023.exe
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:1'835'008 bytes
First seen:2023-10-11 18:52:32 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'600 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 49152:UThLAW2J0Gqu71Qgjrh8t37LEg2sy7Pm1RNvCf2MDHy:2Dux5C3kgf4e1rMDHy
TLSH T13885F006D3CEF932D33881F664E6B09BC2A5C7A075BA8145A800EDD7A366745FDB017B
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 RemcosRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
283
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
remcos
Create hunting rule
ID:
1
File name:
MT-501011023.exe
Verdict:
Malicious activity
Analysis date:
2023-10-11 18:56:53 UTC
Tags:
rat remcos remote
Link:
https://app.any.run/tasks/109cde70-831d-4905-a6a1-a35f7160bc1e

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/453361/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
Creating a file in the %AppData% directory
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
Sending a custom TCP request
DNS request
Sending an HTTP GET request
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Gathering data
Verdict:
Malicious
Labled as:
Malware
Link:
https://www.hybrid-analysis.com/sample/cb772b73e0d867d11872c40f7f25fead438f5647e73b401efb7a721ba423dfe3
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/e65a5200-129b-418a-8a94-1b3eb7710518
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
rans.troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1323989
Signature
.NET source code contains potential unpacker
.NET source code contains very large array initializations
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
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 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
Found malware configuration
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)
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
Yara detected UAC Bypass using CMSTP
Behaviour
Behavior Graph:
Download SVG
Detection:
remcos
Create hunting rule
Link:
https://mwdb.cert.pl/sample/cb772b73e0d867d11872c40f7f25fead438f5647e73b401efb7a721ba423dfe3/
Threat name:
ByteCode-MSIL.Trojan.InjectorX
Create hunting rule
Status:
Malicious
First seen:
2023-10-11 13:24:20 UTC
File Type:
PE (.Net Exe)
Extracted files:
6
AV detection:
12 of 38 (31.58%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=zn3sw47a3bt5cgdsyqhx6jp6vvby6vsh445uahx3pjzbxjbd37rq._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos botnet:bless persistence rat
Link:
https://tria.ge/reports/231011-xjmnasgh26/
Behaviour
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Adds Run key to start application
Remcos
Malware Config
C2 Extraction:
193.142.59.6:9494
Unpacked files
SH256 hash:
b65da652b5d52e2cfb10edee633425e0b641f6baedfd6c6b7cc5ac5c0cebc7c0
MD5 hash:
e03cc66c57cc89abd70a373350c5ad00
SHA1 hash:
b9029d8342745623d512aff0e073ce2cb5ca0e74
Link:
https://www.unpac.me/results/8dccceee-bab7-418c-afaf-8840aaea1b48/
SH256 hash:
c0b7f0736ee7991ca708bdfa3b76bef2211c542e9f9a740454422828f7500007
MD5 hash:
4a4b3f2d03a41186df3d5ab3e287679b
SHA1 hash:
b31855bd082287738a45899cecbab9b885769834
Link:
https://www.unpac.me/results/8dccceee-bab7-418c-afaf-8840aaea1b48/
SH256 hash:
996b8ff1f02b9fd75f4dcd3806862b0cac277776fcc9977f216da0f60496fd4c
MD5 hash:
c73f70578750a9182e0cbf48b6b26b9a
SHA1 hash:
a0940db99393b674e347c34dac7930f37f13d223
Detections:
Remcos
Create hunting rule
win_remcos_w0
Create hunting rule
win_remcos_auto
Create hunting rule
Link:
https://www.unpac.me/results/8dccceee-bab7-418c-afaf-8840aaea1b48/
Parent samples :
cb772b73e0d867d11872c40f7f25fead438f5647e73b401efb7a721ba423dfe3
683b1aa79c5e0658ad46b136527a047a44eac01c497133e379015d7902fb783b
SH256 hash:
19efdf03cb94895935225795f68bb9abfded1869687367013b8b4eee3cc99372
MD5 hash:
4e29f75c0c51b9dec76955f0382d9541
SHA1 hash:
4899aa8e3f57339cbaec8faab777897a76fe1c3a
Link:
https://www.unpac.me/results/8dccceee-bab7-418c-afaf-8840aaea1b48/
SH256 hash:
cb772b73e0d867d11872c40f7f25fead438f5647e73b401efb7a721ba423dfe3
MD5 hash:
c7c09ee92f929654eb182af90abec952
SHA1 hash:
274056d3eddd2699acc74610040cc4f2fa69f22c
Link:
https://www.unpac.me/results/8dccceee-bab7-418c-afaf-8840aaea1b48/
Malware family:
Remcos
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/cb772b73e0d8/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Remcos
Score:
0.90
Link:
https://yomi.yoroi.company/submissions/cb772b73e0d867d11872c40f7f25fead438f5647e73b401efb7a721ba423dfe3

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: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.

Malspam

RemcosRAT

Executable exe cb772b73e0d867d11872c40f7f25fead438f5647e73b401efb7a721ba423dfe3

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/453361/

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