MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a88132c9eaaae224c518e6bd900b5708850939dcdb65310e06e513a72424db07. 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: 19


Intelligence 19 IOCs YARA 6 File information Comments

SHA256 hash: a88132c9eaaae224c518e6bd900b5708850939dcdb65310e06e513a72424db07
SHA3-384 hash: 319e2263e962a09982a2f15b735542b40f2d609ee8d95bc38308ce322f605a5c30f1a50a6449e153b1c77158cad199a0
SHA1 hash: 62efe7ed7a94c1c7c9ea621dcdded5eadfb9ee50
MD5 hash: fef1ced5f2ec41ef50aa6b197ca356b2
humanhash: glucose-fanta-uranus-minnesota
File name:decode_c5d0ce321e09459e13737cd4acd34d40f94812be83226de1f297346f1d9630de
Download: download sample
Signature RemcosRAT
File size:492'544 bytes
First seen:2023-06-29 13:04:36 UTC
Last seen:2023-08-15 14:50:10 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 04d77d421b8e5297898a3fce39d74267 (41 x RemcosRAT)
ssdeep 12288:vRXxReZj3WZfj/2eSseWFaIe2+f8CL47bs/Zf2QDU:vx7cyF2eSsewS8W47eZO
Threatray 2'159 similar samples on MalwareBazaar
TLSH T17BA4BF02BAC1C072D57651300D2AF775DAF9BD20183A457BB3DA1D9BFD70190B63AAB2
TrID 32.2% (.EXE) Win64 Executable (generic) (10523/12/4)
20.1% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
15.4% (.EXE) Win16 NE executable (generic) (5038/12/1)
13.7% (.EXE) Win32 Executable (generic) (4505/5/1)
6.2% (.EXE) OS/2 Executable (generic) (2029/13)
File icon (PE):PE icon
dhash icon c4d48eaa8ad4d4f8 (1'000 x RemcosRAT, 1 x Worm.Ramnit, 1 x Vjw0rm)
Reporter jstrosch
Tags:exe RemcosRAT

Intelligence


File Origin
# of uploads :
3
# of downloads :
298
Origin country :
US US
Vendor Threat Intelligence
Malware family:
ID:
1
File name:
decode_c5d0ce321e09459e13737cd4acd34d40f94812be83226de1f297346f1d9630de
Verdict:
Malicious activity
Analysis date:
2023-06-29 13:07:55 UTC
Tags:
keylogger 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
Creating a file in the %AppData% subdirectories
Enabling the 'hidden' option for recently created files
Sending a custom TCP request
Creating a process from a recently created file
Setting a keyboard event handler
DNS request
Creating a file
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Enabling autorun
Result
Malware family:
n/a
Score:
  6/10
Tags:
n/a
Behaviour
MalwareBazaar
MeasuringTime
EvasionQueryPerformanceCounter
CheckCmdLine
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
control evasive exploit explorer fingerprint greyware keylogger lolbin shell32
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:
Detection:
malicious
Classification:
troj.spyw.expl.evad
Score:
100 / 100
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
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
Creates an undocumented autostart registry key
Creates autostart registry keys with suspicious names
Delayed program exit found
Found malware configuration
Installs a global keyboard hook
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sigma detected: Remcos
Uses dynamic DNS services
Yara detected Remcos RAT
Yara detected UAC Bypass using CMSTP
Behaviour
Behavior Graph:
Threat name:
Win32.Trojan.Remcos
Status:
Malicious
First seen:
2023-06-29 13:05:10 UTC
File Type:
PE (Exe)
Extracted files:
8
AV detection:
22 of 24 (91.67%)
Threat level:
  5/5
Result
Malware family:
Score:
  10/10
Tags:
family:remcos botnet:28junio persistence rat
Behaviour
Modifies registry class
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Adds Run key to start application
Checks computer location settings
Executes dropped EXE
Loads dropped DLL
Adds policy Run key to start application
Remcos
Malware Config
C2 Extraction:
remcosamarre.duckdns.org:6663
Unpacked files
SH256 hash:
a88132c9eaaae224c518e6bd900b5708850939dcdb65310e06e513a72424db07
MD5 hash:
fef1ced5f2ec41ef50aa6b197ca356b2
SHA1 hash:
62efe7ed7a94c1c7c9ea621dcdded5eadfb9ee50
Detections:
Remcos win_remcos_auto
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:iexplorer_remcos
Author:iam-py-test
Description:Detect iexplorer being taken over by Remcos
Rule name:INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM
Author:ditekSHen
Description:Detects Windows exceutables bypassing UAC using CMSTP COM interfaces. MITRE (T1218.003)
Rule name:Remcos
Author:kevoreilly
Description:Remcos Payload
Rule name:REMCOS_RAT_variants
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.

  
Delivery method
Other

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