MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 81afd195e1e7ef6a3831c762b8017f7e870fddbd049479c4811c80892cee1288. 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: 14


Intelligence 14 IOCs YARA 7 File information Comments 1

SHA256 hash: 81afd195e1e7ef6a3831c762b8017f7e870fddbd049479c4811c80892cee1288
SHA3-384 hash: 0d422e05ab43951eb292929fb111c2019b558ae191a5ec362945b48c1f88ac3d35356e7a6b5ccce0052586ad1a51e1e7
SHA1 hash: 7b6e738efcde3340db51bd4fa19b7f0576e228cc
MD5 hash: 74ae5df68e133e9f312d191beb52d302
humanhash: utah-berlin-sierra-social
File name:74ae5df68e133e9f312d191beb52d302
Download: download sample
Signature RemcosRAT
File size:4'713'984 bytes
First seen:2022-11-01 20:05:38 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'738 x AgentTesla, 19'596 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 24576:FbbjdIy6YrN6SP+JXOXL2bERei6PCIraVuh75jO1IujDFb3uMTVTUP3BUJSBNkCI:
TLSH T1442611F1A4AB8195F14BCD8155BCF9A104B230E3FDD9087D031EA645CFAED983A49A4F
TrID 72.5% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.4% (.EXE) Win64 Executable (generic) (10523/12/4)
6.5% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.4% (.EXE) Win32 Executable (generic) (4505/5/1)
2.0% (.EXE) OS/2 Executable (generic) (2029/13)
File icon (PE):PE icon
dhash icon 4db292f2d88cb40b (15 x RemcosRAT, 13 x AgentTesla, 7 x NanoCore)
Reporter zbetcheckin
Tags:32 exe RemcosRAT

Intelligence


File Origin
# of uploads :
1
# of downloads :
386
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
ID:
1
File name:
KHIDMM221613.xlsx
Verdict:
Malicious activity
Analysis date:
2022-11-01 18:49:43 UTC
Tags:
encrypted trojan opendir exploit cve-2017-11882 loader 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
Launching a process
Creating a process with a hidden window
Sending a custom TCP request
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.evad
Score:
100 / 100
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
C2 URLs / IPs found in malware configuration
Creates an undocumented autostart registry key
Encrypted powershell cmdline option found
Injects a PE file into a foreign processes
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 domain / URL
Multi AV Scanner detection for submitted file
Sigma detected: Remcos
Uses dynamic DNS services
Yara detected Remcos RAT
Behaviour
Behavior Graph:
Threat name:
ByteCode-MSIL.Backdoor.DcRat
Status:
Malicious
First seen:
2022-11-01 20:06:17 UTC
File Type:
PE (.Net Exe)
Extracted files:
3
AV detection:
21 of 40 (52.50%)
Threat level:
  5/5
Result
Malware family:
Score:
  10/10
Tags:
family:remcos botnet:fresh bangs rat
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Checks computer location settings
Remcos
Malware Config
C2 Extraction:
aryexpcrt.ddns.net:3216
Unpacked files
SH256 hash:
a25c9014b2e049435b4bb3974c9493aed51576b4ea091d48875321a3d468f502
MD5 hash:
b61d337fc0d498d6454e190c8d983ca5
SHA1 hash:
9c6b3703a7865149ee765518c19f0356dcad8947
SH256 hash:
e0feee5d9429c4364eefb8ed4903fee2bb86e76acc280c9199f0c53eee4ed9db
MD5 hash:
2874e1a3b701a0f467b1f7a755d79d7a
SHA1 hash:
96dc1aa958a88fa4dde98dfed929c54db117a9a4
SH256 hash:
41f520f8d2b686fc6e699c28b39e663d0daf9a9355699fe124299d2ed835bc1e
MD5 hash:
cfcf25e946932a86bdc0a8684cba1fe4
SHA1 hash:
30037d5877555a282b3213cc87436ca5483b5124
Detections:
Remcos win_remcos_auto
SH256 hash:
81afd195e1e7ef6a3831c762b8017f7e870fddbd049479c4811c80892cee1288
MD5 hash:
74ae5df68e133e9f312d191beb52d302
SHA1 hash:
7b6e738efcde3340db51bd4fa19b7f0576e228cc
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:INDICATOR_SUSPICIOUS_EXE_UACBypass_EventViewer
Author:ditekSHen
Description:detects Windows exceutables potentially bypassing UAC using eventvwr.exe
Rule name:pe_imphash
Rule name:Remcos
Author:kevoreilly
Description:Remcos Payload
Rule name:REMCOS_RAT_variants
Rule name:Skystars_Malware_Imphash
Author:Skystars LightDefender
Description:imphash
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 81afd195e1e7ef6a3831c762b8017f7e870fddbd049479c4811c80892cee1288

(this sample)

  
Delivery method
Distributed via web download

Comments



Avatar
zbet commented on 2022-11-01 20:05:46 UTC

url : hxxp://192.3.27.139/99/vbc.exe