MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 515b7bd886b37d24fa02bb3d9b1ecf31f887bb46834787771722236d40c565c7. 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


Vjw0rm


Vendor detections: 16


Intelligence 16 IOCs YARA 2 File information Comments
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SHA256 hash: 515b7bd886b37d24fa02bb3d9b1ecf31f887bb46834787771722236d40c565c7
SHA3-384 hash: 8aff16069e28e0bb86b4ca84526ec15612f64f2a5aa805d99f13eb4e7293661d63987f73c568a56ef6b1e0560313b036
SHA1 hash: 061a917e9691648e00a7f91ff82ae1c0e8da248b
MD5 hash: f192b4e9cf07850041e19ea07cd984e3
humanhash: sierra-angel-queen-helium
File name:Xworm V5.6.exe
Download: download sample
Signature Vjw0rm
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File size:16'615'936 bytes
First seen:2024-06-15 20:59:26 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'665 x AgentTesla, 19'479 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 393216:bZ81TpBxAxlcciQ2RRkaZECMV8ElgSgq4nZ:bpB2jk3Vvlh6
Threatray 1 similar samples on MalwareBazaar
TLSH T1FAF69AF1CDAF2C7E8F2CA7372A5FC5102EEB94A02D690F4E844939C9E367005D69255E
TrID 71.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.2% (.EXE) Win64 Executable (generic) (10523/12/4)
6.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.3% (.EXE) Win32 Executable (generic) (4504/4/1)
2.0% (.ICL) Windows Icons Library (generic) (2059/9)
File icon (PE):PE icon
dhash icon 8eccf86171e4cc8e (8 x AsyncRAT, 3 x XWorm, 2 x RedLineStealer)
Reporter Chainskilabs
Tags:exe vjw0rm

Intelligence

File Origin
# of uploads :
1
# of downloads :
441
Origin country :
RO RO
Vendor Threat Intelligence
Malware family:
njrat
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ID:
1
File name:
515b7bd886b37d24fa02bb3d9b1ecf31f887bb46834787771722236d40c565c7.exe
Verdict:
Malicious activity
Analysis date:
2024-06-15 21:02:39 UTC
Tags:
xworm rat njrat bladabindi
Link:
https://app.any.run/tasks/e36c8d30-c6d7-472a-a986-cfd5759a1765

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Trojan.MulDropNET.78.28386.30823.UNOFFICIAL
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Verdict:
Malicious
Score:
96.5%
Link:
https://cyber-fortress.com/docs/result/index.php?id=666e024b0f8138dd4ea7f5b9win7simulatehigh_evasion
Tags:
Banker Execution Network Dropper Dexter
Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
Creating a file in the %AppData% directory
Creating a process from a recently created file
Creating a file
Creating a window
Creating a file in the %temp% directory
Searching for the window
Using the Windows Management Instrumentation requests
Creating a process with a hidden window
Enabling the 'hidden' option for recently created files
Searching for synchronization primitives
Connection attempt
Launching the default Windows debugger (dwwin.exe)
Unauthorized injection to a recently created process
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Launching the process to change the firewall settings
Creating a file in the mass storage device
Enabling autorun by creating a file
Adding an exclusion to Microsoft Defender
Enabling threat expansion on mass storage devices
Verdict:
Malicious
Labled as:
MSIL.HackTool.Generic
Link:
https://www.hybrid-analysis.com/sample/515b7bd886b37d24fa02bb3d9b1ecf31f887bb46834787771722236d40c565c7
Result
Verdict:
MALICIOUS
Malware family:
Mimikatz
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Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/c665f13a-3397-451a-9f7e-7beeab8dc404
Result
Threat name:
VjW0rm, Njrat, WSHRAT, XWorm
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Detection:
malicious
Classification:
spre.troj.adwa.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1457853
Signature
.NET source code contains potential unpacker
.NET source code references suspicious native API functions
Adds a directory exclusion to Windows Defender
AI detected suspicious sample
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Bypasses PowerShell execution policy
C2 URLs / IPs found in malware configuration
Contains functionality to log keystrokes (.Net Source)
Creates autorun.inf (USB autostart)
Drops PE files to the startup folder
Drops PE files with benign system names
Drops VBS files to the startup folder
Found malware configuration
Loading BitLocker PowerShell Module
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Modifies the windows firewall
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Potential malicious VBS script found (has network functionality)
Protects its processes via BreakOnTermination flag
Queries sensitive service information (via WMI, Win32_LogicalDisk, often done to detect sandboxes)
Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines)
Sample uses string decryption to hide its real strings
Sigma detected: Drops fake system file at system root drive
Sigma detected: Drops script at startup location
Sigma detected: Files With System Process Name In Unsuspected Locations
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
Sigma detected: Register Wscript In Run Key
Sigma detected: Script Interpreter Execution From Suspicious Folder
Sigma detected: Suspicious Script Execution From Temp Folder
Sigma detected: VjW0rm
Sigma detected: WScript or CScript Dropper
Sigma detected: WScript or CScript Dropper - File
Snort IDS alert for network traffic
System process connects to network (likely due to code injection or exploit)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Uses known network protocols on non-standard ports
Uses netsh to modify the Windows network and firewall settings
Windows Scripting host queries suspicious COM object (likely to drop second stage)
Windows Shell Script Host drops VBS files
Wscript called in batch mode (surpress errors)
Yara detected Generic Downloader
Yara detected Njrat
Yara detected Powershell download and execute
Yara detected RUNPE
Yara detected Telegram RAT
Yara detected Telegram Recon
Yara detected VjW0rm
Yara detected WSHRAT
Yara detected XWorm
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1457853 Sample: Xworm V5.6.exe Startdate: 15/06/2024 Architecture: WINDOWS Score: 100 97 Sigma detected: Register Wscript In Run Key 2->97 99 Snort IDS alert for network traffic 2->99 101 Multi AV Scanner detection for domain / URL 2->101 103 35 other signatures 2->103 9 Xworm V5.6.exe 3 7 2->9         started        12 wscript.exe 2->12         started        15 wscript.exe 2->15         started        17 2 other processes 2->17 process3 file4 77 C:\Users\user\AppData\...\Xworm V5.6.exe, PE32 9->77 dropped 79 C:\Users\user\AppData\Roaming\Server.exe, PE32 9->79 dropped 81 C:\Users\user\AppData\...\Outputbinded.exe, PE32 9->81 dropped 83 3 other malicious files 9->83 dropped 19 Outputbinded.exe 4 9->19         started        23 Server.exe 9->23         started        25 wscript.exe 1 6 9->25         started        30 2 other processes 9->30 133 Wscript called in batch mode (surpress errors) 12->133 28 wscript.exe 12->28         started        signatures5 process6 dnsIp7 65 C:\Users\user\AppData\...\XClientamor.exe, PE32 19->65 dropped 105 Antivirus detection for dropped file 19->105 107 Multi AV Scanner detection for dropped file 19->107 109 Machine Learning detection for dropped file 19->109 32 XClientamor.exe 5 19->32         started        67 C:\svchost.exe, PE32 23->67 dropped 69 C:\...\66d1b8410b347e24d21ce9ad910a4de7.exe, PE32 23->69 dropped 71 C:\autorun.inf, Microsoft 23->71 dropped 111 Creates autorun.inf (USB autostart) 23->111 113 Drops PE files to the startup folder 23->113 115 Uses netsh to modify the Windows network and firewall settings 23->115 127 2 other signatures 23->127 36 netsh.exe 23->36         started        85 192.168.1.8, 49731, 49734, 49739 unknown unknown 25->85 117 Potential malicious VBS script found (has network functionality) 25->117 119 Drops VBS files to the startup folder 25->119 129 2 other signatures 25->129 73 C:\Users\user\AppData\...\myronworm.vbs, ASCII 30->73 dropped 75 C:\Users\user\AppData\Local\...\myronworm.vbs, ASCII 30->75 dropped 121 Windows Shell Script Host drops VBS files 30->121 123 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 30->123 125 Wscript called in batch mode (surpress errors) 30->125 38 wscript.exe 30->38         started        40 WerFault.exe 30->40         started        file8 signatures9 process10 file11 61 C:\Users\user\AppData\...\XClienamrt.exe, PE32 32->61 dropped 87 Multi AV Scanner detection for dropped file 32->87 89 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 32->89 91 Protects its processes via BreakOnTermination flag 32->91 95 3 other signatures 32->95 42 powershell.exe 32->42         started        45 powershell.exe 32->45         started        47 powershell.exe 32->47         started        49 powershell.exe 32->49         started        51 conhost.exe 36->51         started        93 System process connects to network (likely due to code injection or exploit) 38->93 63 C:\ProgramData\Microsoft\...\Report.wer, Unicode 40->63 dropped signatures12 process13 signatures14 131 Loading BitLocker PowerShell Module 42->131 53 conhost.exe 42->53         started        55 conhost.exe 45->55         started        57 conhost.exe 47->57         started        59 conhost.exe 49->59         started        process15
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/515b7bd886b37d24fa02bb3d9b1ecf31f887bb46834787771722236d40c565c7
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/515b7bd886b37d24fa02bb3d9b1ecf31f887bb46834787771722236d40c565c7/
Threat name:
ByteCode-MSIL.Trojan.AsyncRAT
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Status:
Malicious
First seen:
2024-06-15 17:43:51 UTC
File Type:
PE (.Net Exe)
Extracted files:
8
AV detection:
25 of 38 (65.79%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=kfnxxwegwn6sj6qcxm6zwhwpgh4ipo2gqndyo5yxeirw2qgfmxdq._file
Verdict:
malicious
Label(s):
njrat
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Similar samples:
515b7bd886b37d24fa02bb3d9b1ecf31f887bb46834787771722236d40c565c7
Vjw0rm
Result
Malware family:
xworm
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Score:
  10/10
Tags:
family:njrat family:vjw0rm family:xworm botnet:hacked evasion execution persistence rat trojan worm
Link:
https://tria.ge/reports/240615-ztagtstfrb/
Behaviour
Modifies registry class
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Command and Scripting Interpreter: JavaScript
Enumerates physical storage devices
Drops autorun.inf file
Adds Run key to start application
Checks computer location settings
Drops startup file
Executes dropped EXE
Command and Scripting Interpreter: PowerShell
Modifies Windows Firewall
Detect Xworm Payload
Vjw0rm
Xworm
njRAT/Bladabindi
Malware Config
C2 Extraction:
192.168.1.8:7000
192.168.1.8:7788
Unpacked files
SH256 hash:
515b7bd886b37d24fa02bb3d9b1ecf31f887bb46834787771722236d40c565c7
MD5 hash:
f192b4e9cf07850041e19ea07cd984e3
SHA1 hash:
061a917e9691648e00a7f91ff82ae1c0e8da248b
Link:
https://www.unpac.me/results/909d7e76-3cc6-4585-8418-c2438481b02b/
Malware family:
njRAT
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Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/515b7bd886b3/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/515b7bd886b37d24fa02bb3d9b1ecf31f887bb46834787771722236d40c565c7

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:pe_imphash
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Rule name:Skystars_Malware_Imphash
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Author:Skystars LightDefender
Description:imphash

File information

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

BLint

The following table provides more information about this file using BLint. BLint is a Binary Linter to check the security properties, and capabilities in executables.

Findings
IDTitleSeverity
CHECK_AUTHENTICODEMissing Authenticodehigh
CHECK_DLL_CHARACTERISTICSMissing dll Security Characteristics (HIGH_ENTROPY_VA)high

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