MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 656a325adc19ae5c66741fcea36e01d1bc27e5a97b800778938af37f41f811fd. 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



XWorm


Vendor detections: 8


Intelligence 8 IOCs YARA File information Comments

SHA256 hash: 656a325adc19ae5c66741fcea36e01d1bc27e5a97b800778938af37f41f811fd
SHA3-384 hash: b6eb83483c825f2fc7dc7a931f2ae745e790aae152cb7ee821dee49ffdcafaed7bcf9f65fb755d825baebe37f701016e
SHA1 hash: 42fcfdc101ad5d36a5f4279c334a28eeb84ea474
MD5 hash: 074de237edb5742ac77714e5c79770e9
humanhash: friend-thirteen-georgia-saturn
File name:a1.vbs
Download: download sample
Signature XWorm
File size:178'430 bytes
First seen:2023-04-12 12:00:55 UTC
Last seen:Never
File type:Visual Basic Script (vbs) vbs
MIME type:text/plain
ssdeep 1536:RBBHwYyZEfZGuF8KxEMugizntCFhr3lMaXGxbMN75ro6B0ZP:BHwYyZEfZGuF8Kwgizn+q
TLSH T114042C93E4996CC8FBE1664B579FA67E37F7A8A4403C9D1544D8CA2B3ACD40C46013EB
TrID 66.6% (.TXT) Text - UTF-16 (LE) encoded (2000/1)
33.3% (.MP3) MP3 audio (1000/1)
Reporter JAMESWT_WT
Tags:vbs xworm

Intelligence


File Origin
# of uploads :
1
# of downloads :
131
Origin country :
IT IT
Vendor Threat Intelligence
Result
Verdict:
MALICIOUS
Result
Threat name:
Detection:
malicious
Classification:
troj.spyw.expl.evad
Score:
100 / 100
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains potential unpacker
C2 URLs / IPs found in malware configuration
Contains functionality to capture screen (.Net source)
Contains functionality to log keystrokes (.Net Source)
Downloads files with wrong headers with respect to MIME Content-Type
Drops VBS files to the startup folder
Injects a PE file into a foreign processes
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Sigma detected: Drops script at startup location
Snort IDS alert for network traffic
Suspicious powershell command line found
Uses the Telegram API (likely for C&C communication)
VBScript performs obfuscated calls to suspicious functions
Very long command line found
Windows Shell Script Host drops VBS files
Writes to foreign memory regions
Wscript starts Powershell (via cmd or directly)
Yara detected Generic Downloader
Yara detected XWorm
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 845412 Sample: a1.vbs Startdate: 12/04/2023 Architecture: WINDOWS Score: 100 61 Snort IDS alert for network traffic 2->61 63 Malicious sample detected (through community Yara rule) 2->63 65 Multi AV Scanner detection for submitted file 2->65 67 11 other signatures 2->67 8 wscript.exe 10 2->8         started        12 wscript.exe 7 2->12         started        14 powershell.exe 3 15 2->14         started        process3 file4 47 C:\Users\user\...\a1.vbs:Zone.Identifier, ASCII 8->47 dropped 49 C:\Users\user\AppData\Roaming\...\a1.vbs, Unicode 8->49 dropped 69 VBScript performs obfuscated calls to suspicious functions 8->69 71 Suspicious powershell command line found 8->71 73 Wscript starts Powershell (via cmd or directly) 8->73 77 2 other signatures 8->77 16 powershell.exe 14 9 8->16         started        75 Very long command line found 12->75 20 powershell.exe 12->20         started        22 conhost.exe 1 14->22         started        24 powershell.exe 14->24         started        26 wscript.exe 14->26         started        signatures5 process6 dnsIp7 51 45.88.67.75, 3333, 49708, 49710 LVLT-10753US Bulgaria 16->51 55 Suspicious powershell command line found 16->55 57 Writes to foreign memory regions 16->57 59 Injects a PE file into a foreign processes 16->59 28 RegSvcs.exe 15 3 16->28         started        31 powershell.exe 12 16->31         started        33 conhost.exe 16->33         started        35 RegSvcs.exe 16->35         started        37 conhost.exe 20->37         started        39 RegSvcs.exe 20->39         started        41 RegSvcs.exe 20->41         started        43 RegSvcs.exe 20->43         started        signatures8 process9 dnsIp10 53 api.telegram.org 149.154.167.220, 443, 49709 TELEGRAMRU United Kingdom 28->53 45 conhost.exe 31->45         started        process11
Threat name:
Script-WScript.Trojan.Valyria
Status:
Malicious
First seen:
2023-04-08 03:20:30 UTC
File Type:
Text (VBS)
AV detection:
7 of 24 (29.17%)
Threat level:
  5/5
Verdict:
unknown
Result
Malware family:
Score:
  10/10
Tags:
family:xworm rat trojan
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
Drops startup file
Blocklisted process makes network request
Xworm
Malware Config
C2 Extraction:
45.88.67.75:3333
Please note that we are no longer able to provide a coverage score for Virus Total.

File information


The table below shows additional information about this malware sample such as delivery method and external references.

Web download

XWorm

Visual Basic Script (vbs) vbs 656a325adc19ae5c66741fcea36e01d1bc27e5a97b800778938af37f41f811fd

(this sample)

Comments