MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 317977d99bebf5f65a24d6460fa2f98f5e875d1f85f12a430acb69f8dd3dfbdf. 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: 12


Intelligence 12 IOCs YARA 6 File information Comments

SHA256 hash: 317977d99bebf5f65a24d6460fa2f98f5e875d1f85f12a430acb69f8dd3dfbdf
SHA3-384 hash: 5c50656685b689ff9ac4598f80e15e7c9f2cc787bff881e51fff13671954872384635cd372e023abfd8dc72d4700b043
SHA1 hash: 4fa0e7412ceb1fb3698f9e12096d09c891f50592
MD5 hash: ea09aae2c9d9337e6e79f773942aff88
humanhash: muppet-double-massachusetts-mountain
File name:vbc.exe
Download: download sample
Signature RemcosRAT
File size:17'920 bytes
First seen:2022-08-18 10:21:05 UTC
Last seen:2022-08-18 10:40:15 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 192:GfRLMG1yeGjBuhkA9V+cjXTynL1u964j+lPbueIfADb1lttiqMBJZJMAc3l8tcTZ:6Rv1yeG0H+tE9j+dbuXEe/+X3eHSyy1
Threatray 1'699 similar samples on MalwareBazaar
TLSH T192821917BA8C422DDE95CB3EC997A03003A4E6969557C5DF788BE3462C027EACA4058F
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)
Reporter pr0xylife
Tags:exe RemcosRAT

Intelligence


File Origin
# of uploads :
2
# of downloads :
386
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
URGENT ORDER(TB-0008).docx
Verdict:
Malicious activity
Analysis date:
2022-08-18 10:19:52 UTC
Tags:
generated-doc trojan opendir exploit CVE-2017-11882 loader

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
Creating a file in the %AppData% subdirectories
Creating a file
Sending a custom TCP request
DNS request
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
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, Remcos
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Signature
.NET source code contains potential unpacker
Allocates memory in foreign processes
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Encrypted powershell cmdline option found
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Snort IDS alert for network traffic
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Writes to foreign memory regions
Yara detected AsyncRAT
Yara detected Generic Downloader
Yara detected Remcos RAT
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 686251 Sample: vbc.exe Startdate: 18/08/2022 Architecture: WINDOWS Score: 100 51 Snort IDS alert for network traffic 2->51 53 Malicious sample detected (through community Yara rule) 2->53 55 Antivirus detection for URL or domain 2->55 57 8 other signatures 2->57 7 vbc.exe 16 7 2->7         started        12 Adoxl.exe 14 4 2->12         started        14 Adoxl.exe 2->14         started        process3 dnsIp4 49 89.37.99.19, 49720, 49727, 49732 BANDWIDTH-ASGB Romania 7->49 39 C:\Users\user\AppData\Roaming\...\Adoxl.exe, PE32 7->39 dropped 41 C:\Users\user\...\Adoxl.exe:Zone.Identifier, ASCII 7->41 dropped 43 C:\Users\user\AppData\Local\...\vbc.exe.log, ASCII 7->43 dropped 59 Encrypted powershell cmdline option found 7->59 61 Writes to foreign memory regions 7->61 63 Allocates memory in foreign processes 7->63 16 InstallUtil.exe 2 14 7->16         started        19 powershell.exe 17 7->19         started        65 Machine Learning detection for dropped file 12->65 67 Injects a PE file into a foreign processes 12->67 21 powershell.exe 14 12->21         started        23 InstallUtil.exe 12->23         started        25 InstallUtil.exe 12->25         started        27 InstallUtil.exe 12->27         started        29 powershell.exe 14->29         started        31 InstallUtil.exe 14->31         started        file5 signatures6 process7 dnsIp8 45 172.94.88.13, 49725, 5888 SOFTLAYERUS United States 16->45 47 geoplugin.net 178.237.33.50, 49726, 80 ATOM86-ASATOM86NL Netherlands 16->47 33 conhost.exe 19->33         started        35 conhost.exe 21->35         started        37 conhost.exe 29->37         started        process9
Threat name:
ByteCode-MSIL.Downloader.PsDownload
Status:
Malicious
First seen:
2022-08-18 10:22:05 UTC
File Type:
PE (.Net Exe)
Extracted files:
1
AV detection:
18 of 26 (69.23%)
Threat level:
  3/5
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:
172.94.88.13:5888
Unpacked files
SH256 hash:
317977d99bebf5f65a24d6460fa2f98f5e875d1f85f12a430acb69f8dd3dfbdf
MD5 hash:
ea09aae2c9d9337e6e79f773942aff88
SHA1 hash:
4fa0e7412ceb1fb3698f9e12096d09c891f50592
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.

Web download

RemcosRAT

Executable exe 317977d99bebf5f65a24d6460fa2f98f5e875d1f85f12a430acb69f8dd3dfbdf

(this sample)

  
Delivery method
Distributed via web download

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