🤲🏼 NEW | abuse.ch Community Hub! Earn recognition 🏅 for the malware intelligence you share, climb the leaderboards 📈, and connect with like-minded contributors who share your hunting focus 🤝. Ready to unlock your profile? Go to the Community Hub →

MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 9f99648517b9f710d70c90aebcf84a8581c894be7e5c04684a2ba4e032d490e1. 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 6 File information Comments

SHA256 hash: 9f99648517b9f710d70c90aebcf84a8581c894be7e5c04684a2ba4e032d490e1
SHA3-384 hash: bafd1f5b25aa23e5801c78e1457523bbcc4db52273ab1758d6350e443c8ef29b0c18446bd259da07b49638406e5281ad
SHA1 hash: 2dd023f647c3972c877223d8c5a9ff84f1839c29
MD5 hash: f37a776c7918591a61633ffe6fd7025c
humanhash: pennsylvania-jupiter-crazy-potato
File name:bOeS.exe
Download: download sample
Signature RemcosRAT
File size:238'080 bytes
First seen:2023-07-06 14:07:24 UTC
Last seen:2023-07-10 09:07:39 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash bc4f8e98d1041d53dd63bfb91ed10d0a (52 x RemcosRAT)
ssdeep 6144:MvGSN9gWuLpcBKnVBYAsmrzpyDfOXXVYB6:MvbGWulcBKV3uOX
TLSH T10F341298AB2EC869D595C6FC9414D6F222D95C7E0D2665CE17CCFE2FFD27200EC910A2
TrID 54.9% (.EXE) UPX compressed Win32 Executable (27066/9/6)
13.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
10.2% (.EXE) Win16 NE executable (generic) (5038/12/1)
9.1% (.EXE) Win32 Executable (generic) (4505/5/1)
4.1% (.EXE) OS/2 Executable (generic) (2029/13)
File icon (PE):PE icon
dhash icon c4d48eaa8ad4d4f8 (1'215 x RemcosRAT, 1 x Worm.Ramnit, 1 x Vjw0rm)
Reporter pmelson
Tags:exe remcos RemcosRAT

Intelligence


File Origin
# of uploads :
2
# of downloads :
345
Origin country :
US US
Vendor Threat Intelligence
Malware family:
ID:
1
File name:
bOeS.exe
Verdict:
Malicious activity
Analysis date:
2023-07-06 14:12:22 UTC
Tags:
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
Setting a keyboard event handler
DNS request
Creating a file in the %AppData% subdirectories
Result
Malware family:
n/a
Score:
  6/10
Tags:
n/a
Behaviour
MalwareBazaar
MeasuringTime
CheckCmdLine
EvasionQueryPerformanceCounter
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
greyware lolbin packed shell32
Result
Threat name:
Detection:
malicious
Classification:
rans.troj.spyw.expl.evad
Score:
100 / 100
Signature
Antivirus / Scanner detection for submitted sample
C2 URLs / IPs found in malware configuration
Connects to many ports of the same IP (likely port scanning)
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
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
Uses dynamic DNS services
Yara detected Remcos RAT
Yara detected UAC Bypass using CMSTP
Behaviour
Behavior Graph:
Threat name:
Win32.Backdoor.Remcos
Status:
Malicious
First seen:
2023-07-06 14:08:04 UTC
File Type:
PE (Exe)
Extracted files:
17
AV detection:
20 of 24 (83.33%)
Threat level:
  5/5
Verdict:
malicious
Result
Malware family:
Score:
  10/10
Tags:
family:remcos botnet:arupark1 rat upx
Behaviour
Suspicious use of SetWindowsHookEx
UPX packed file
Remcos
Malware Config
C2 Extraction:
claudia7363.ddns.net:37542
Unpacked files
SH256 hash:
7f80bbced1d8f78a4963cf2a205c4b4b826eba53b1276f18fb564d9da34693bf
MD5 hash:
3c481c9e33cb90bf4c2abcd590386f54
SHA1 hash:
99d3831ea36a4a1ec386a2e21d2f25e0e5d8333c
Detections:
Remcos win_remcos_auto
SH256 hash:
9f99648517b9f710d70c90aebcf84a8581c894be7e5c04684a2ba4e032d490e1
MD5 hash:
f37a776c7918591a61633ffe6fd7025c
SHA1 hash:
2dd023f647c3972c877223d8c5a9ff84f1839c29
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.

Web download

RemcosRAT

Executable exe 9f99648517b9f710d70c90aebcf84a8581c894be7e5c04684a2ba4e032d490e1

(this sample)

Comments