MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 2149cec22f889cc1eed0485be3a4670b2f5b20a2f40eaa24633ed54b3b795da2. 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: 11


Intelligence 11 IOCs YARA 6 File information Comments

SHA256 hash: 2149cec22f889cc1eed0485be3a4670b2f5b20a2f40eaa24633ed54b3b795da2
SHA3-384 hash: 94ec8208bec655a18a793ebf2f4e747c80c7e61b03be3dacc2b58143149e11aa98326e228c648adc9ec8e9c8a646a191
SHA1 hash: 1d8de621f3498f46976099e776e333f5ee826e91
MD5 hash: 98e4c79e3ef45333a8f87301bca61a57
humanhash: north-apart-mango-low
File name:vbc.exe
Download: download sample
Signature RemcosRAT
File size:26'624 bytes
First seen:2022-08-25 13:38:51 UTC
Last seen:2022-08-27 02:28:30 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'742 x AgentTesla, 19'607 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 384:VgyjI0uc3wUu/X/lxbLvyqhssQ+7hi950FfmSIISSSSSISSSpvKACPON:VgmuWwU+X/lxfh+sVO5ewVCGN
Threatray 75 similar samples on MalwareBazaar
TLSH T12EC2518B63B64E23F2A8C33D48EB944A8FB5C8BC64A5A51775D1128E3E17B40DBCD705
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 0096cc714d86aa00 (18 x RemcosRAT, 14 x Formbook, 7 x AgentTesla)
Reporter James_inthe_box
Tags:exe RemcosRAT

Intelligence


File Origin
# of uploads :
2
# of downloads :
357
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
vbc.exe
Verdict:
Malicious activity
Analysis date:
2022-08-25 13:41:38 UTC
Tags:
n/a

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
Sending an HTTP GET request
Launching a process
Creating a process with a hidden window
Using the Windows Management Instrumentation requests
Creating a file in the %AppData% subdirectories
Creating a file
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Forced shutdown of a system process
Unauthorized injection to a system process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
packed
Result
Verdict:
UNKNOWN
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:
AsyncRAT, PrivateLoader, Remcos
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Signature
.NET source code contains potential unpacker
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Encrypted powershell cmdline option found
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
Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines)
Snort IDS alert for network traffic
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Yara detected AsyncRAT
Yara detected Generic Downloader
Yara detected PrivateLoader
Yara detected Remcos RAT
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 690277 Sample: vbc.exe Startdate: 25/08/2022 Architecture: WINDOWS Score: 100 41 Snort IDS alert for network traffic 2->41 43 Multi AV Scanner detection for domain / URL 2->43 45 Malicious sample detected (through community Yara rule) 2->45 47 9 other signatures 2->47 7 vbc.exe 16 7 2->7         started        12 Knlbdzmj.exe 14 3 2->12         started        14 Knlbdzmj.exe 3 2->14         started        process3 dnsIp4 39 172.245.142.35, 49723, 49740, 49742 AS-COLOCROSSINGUS United States 7->39 31 C:\Users\user\AppData\...\Knlbdzmj.exe, PE32 7->31 dropped 33 C:\Users\...\Knlbdzmj.exe:Zone.Identifier, ASCII 7->33 dropped 35 C:\Users\user\AppData\Local\...\vbc.exe.log, ASCII 7->35 dropped 49 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 7->49 51 Encrypted powershell cmdline option found 7->51 16 InstallUtil.exe 2 7->16         started        19 powershell.exe 17 7->19         started        53 Machine Learning detection for dropped file 12->53 21 powershell.exe 14 12->21         started        23 powershell.exe 14->23         started        file5 signatures6 process7 dnsIp8 37 172.111.234.100, 5888 SOFTLAYERUS United States 16->37 25 conhost.exe 19->25         started        27 conhost.exe 21->27         started        29 conhost.exe 23->29         started        process9
Threat name:
ByteCode-MSIL.Trojan.FormBook
Status:
Malicious
First seen:
2022-08-25 13:38:43 UTC
File Type:
PE (.Net Exe)
Extracted files:
3
AV detection:
21 of 26 (80.77%)
Threat level:
  5/5
Result
Malware family:
Score:
  10/10
Tags:
family:remcos botnet:remotehost persistence rat
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Adds Run key to start application
Checks computer location settings
Uses the VBS compiler for execution
Remcos
Malware Config
C2 Extraction:
172.111.234.100:5888
Unpacked files
SH256 hash:
2149cec22f889cc1eed0485be3a4670b2f5b20a2f40eaa24633ed54b3b795da2
MD5 hash:
98e4c79e3ef45333a8f87301bca61a57
SHA1 hash:
1d8de621f3498f46976099e776e333f5ee826e91
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: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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