MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 27c81964a136a6fc9125ae45ed9873402303c116db13ec14b65cbdd60606eb89. 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 7 File information Comments

SHA256 hash: 27c81964a136a6fc9125ae45ed9873402303c116db13ec14b65cbdd60606eb89
SHA3-384 hash: ac9b5e75bcdcabc5cb6d5bb38f2b398990d86cdefc76c446090a48f69cf14d7353ef55e3c86117fb407914cce9663ab0
SHA1 hash: 902ffe23521976b6ce6a1bb6347a309ec359ffea
MD5 hash: ed298d3727507724a544adec1a931f72
humanhash: hotel-bluebird-sink-twenty
File name:file
Download: download sample
Signature RemcosRAT
File size:941'106 bytes
First seen:2023-06-13 14:20:22 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 488044b0bdd29fffe63ba8ab8da70aab (1 x RemcosRAT)
ssdeep 24576:lXkjAAPhiVB0UHJMwk8Ar2NPPrFwhN1QRbZPRtc5eD5Vl:JqPhif0UHiwk8NNPPrFwhkbZZi5o/l
Threatray 2'027 similar samples on MalwareBazaar
TLSH T1DF15AE33DA60310AF92788706CB565AA25266C3A6454AD07F781BF4C60729C7FDF632F
TrID 77.2% (.EXE) Win32 Executable Microsoft Visual Basic 6 (82067/2/8)
6.1% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.7% (.EXE) Win16 NE executable (generic) (5038/12/1)
4.2% (.EXE) Win32 Executable (generic) (4505/5/1)
1.9% (.ICL) Windows Icons Library (generic) (2059/9)
File icon (PE):PE icon
dhash icon 009b9b9bbaa69a00 (2 x RemcosRAT, 1 x DCRat)
Reporter jstrosch
Tags:exe RemcosRAT

Intelligence


File Origin
# of uploads :
1
# of downloads :
280
Origin country :
US US
Vendor Threat Intelligence
Malware family:
ID:
1
File name:
file
Verdict:
Malicious activity
Analysis date:
2023-06-13 14:27:26 UTC
Tags:
rat remcos keylogger

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

Behaviour
Сreating synchronization primitives
Creating a window
Launching a process
Searching for synchronization primitives
DNS request
Launching the default Windows debugger (dwwin.exe)
Creating a file
Searching for the window
Sending a custom TCP request
Sending an HTTP GET request
Unauthorized injection to a recently created process by context flags manipulation
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
evasive lolbin overlay packed
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
Allocates memory in foreign processes
Antivirus / Scanner detection for submitted sample
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
Injects a PE file into a foreign processes
Installs a global keyboard hook
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Sigma detected: Remcos
Writes to foreign memory regions
Yara detected Remcos RAT
Yara detected UAC Bypass using CMSTP
Behaviour
Behavior Graph:
Threat name:
Win32.Trojan.InjectorX
Status:
Malicious
First seen:
2023-06-13 14:21:08 UTC
File Type:
PE (Exe)
Extracted files:
2
AV detection:
23 of 35 (65.71%)
Threat level:
  5/5
Result
Malware family:
Score:
  10/10
Tags:
family:remcos botnet:millon rat
Behaviour
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Program crash
Suspicious use of SetThreadContext
Remcos
Malware Config
C2 Extraction:
uribetc.con-ip.com:1883
Unpacked files
SH256 hash:
c01b2d3fdf08741f95afe78d894a2302bb377f971dbd85358fc7298dd5a368d2
MD5 hash:
ab645a71c7298da7b8f6aebe6a2421d4
SHA1 hash:
151221cf937d6f920c9376101d72cd2bbb935cc6
Detections:
Remcos win_remcos_auto
SH256 hash:
27c81964a136a6fc9125ae45ed9873402303c116db13ec14b65cbdd60606eb89
MD5 hash:
ed298d3727507724a544adec1a931f72
SHA1 hash:
902ffe23521976b6ce6a1bb6347a309ec359ffea
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:Disable_Defender
Author:iam-py-test
Description:Detect files disabling or modifying Windows Defender, Windows Firewall, or Microsoft Smartscreen
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.

Web download

RemcosRAT

Executable exe 27c81964a136a6fc9125ae45ed9873402303c116db13ec14b65cbdd60606eb89

(this sample)

  
Delivery method
Distributed via web download

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