MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a9f1d82a7954d86d746086969c0d7b7b5ca65ccfd0d6a375931a6826eca1a8c7. 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: 17


Intelligence 17 IOCs YARA 15 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a9f1d82a7954d86d746086969c0d7b7b5ca65ccfd0d6a375931a6826eca1a8c7
SHA3-384 hash: 2cf7e02b39946e0c95636a6f3872785c53122fcc0e24e1815aec8215d932e1f64f847f74dc1d4652084ce5ebb715e47e
SHA1 hash: f58dad3090854f8ab5cc3de89d6cdaeb151883d4
MD5 hash: 99088d7d8b409b4039b02295e64a686f
humanhash: delta-muppet-river-uncle
File name:a9f1d82a7954d86d746086969c0d7b7b5ca65ccfd0d6a375931a6826eca1a8c7.exe
Download: download sample
Signature XWorm
Create hunting rule
File size:71'168 bytes
First seen:2024-07-26 19:20:36 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'599 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 1536:/Jyq1zgbszio2koAZnsuW8sLFbsnkRs6v6daV4IO8geup:/JT1zPziqoQsX8sLFbsH6R4IO8geup
Threatray 728 similar samples on MalwareBazaar
TLSH T1AF636A187BE94025F1FF9FB55DE17266CA79B3236803D61F54C9028B1A23A85CC817F6
TrID 60.4% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.8% (.SCR) Windows screen saver (13097/50/3)
8.7% (.EXE) Win64 Executable (generic) (10523/12/4)
5.4% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.1% (.EXE) Win16 NE executable (generic) (5038/12/1)
Reporter Chainskilabs
Tags:exe xworm

Intelligence

File Origin
# of uploads :
1
# of downloads :
396
Origin country :
US US
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
a9f1d82a7954d86d746086969c0d7b7b5ca65ccfd0d6a375931a6826eca1a8c7.exe
Verdict:
Malicious activity
Analysis date:
2024-07-26 19:56:00 UTC
Tags:
xworm evasion telegram remote
Link:
https://app.any.run/tasks/1075ee03-9ad5-4ae8-83f8-7c106cddcdd2

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
Win.Packed.njRAT-10002074-1
Create hunting rule

Win.Packed.Msilzilla-10019837-0
Create hunting rule

Win.Packed.Loveletter-10023052-0
Create hunting rule

Win.Dropper.Nanocore-10024427-0
Create hunting rule

Win.Packed.Loveletter-10024677-0
Create hunting rule

Win.Packed.Msilzilla-10024808-0
Create hunting rule

Win.Packed.Msilzilla-10026193-0
Create hunting rule

ditekSHen.MALWARE.Win.Trojan.AsyncRAT.UNOFFICIAL
Create hunting rule

ditekSHen.MALWARE.Win.XWorm.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
99.1%
Link:
https://cyber-fortress.com/docs/result/index.php?id=66a3f736fb0026d1138aa1c9
Tags:
Discovery Network Stealth Heur
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Сreating synchronization primitives
Using the Windows Management Instrumentation requests
DNS request
Connection attempt
Sending an HTTP GET request
Creating a process with a hidden window
Creating a file in the %AppData% directory
Creating a window
Adding an exclusion to Microsoft Defender
Enabling autorun by creating a file
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
anti-vm asyncrat backdoor fingerprint rat vbnet
Link:
https://www.filescan.io/uploads/66a3f71fdfa8b2fced4ef220/reports/eddc0246-d627-48b8-858a-b6e6da21b22a/overview
Result
Verdict:
MALICIOUS
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Malware family:
XWorm
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/56427404-6040-4b56-a9ce-ce6f06074542
Result
Threat name:
XWorm
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1483225
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains potential unpacker
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
Check if machine is in data center or colocation facility
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
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)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Protects its processes via BreakOnTermination flag
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: Powershell Base64 Encoded MpPreference Cmdlet
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Uses the Telegram API (likely for C&C communication)
Yara detected Generic Downloader
Yara detected Telegram RAT
Yara detected Telegram Recon
Yara detected XWorm
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1483225 Sample: VJV2AjJ7Na.exe Startdate: 26/07/2024 Architecture: WINDOWS Score: 100 32 api.telegram.org 2->32 34 main-although.gl.at.ply.gg 2->34 36 ip-api.com 2->36 44 Found malware configuration 2->44 46 Malicious sample detected (through community Yara rule) 2->46 48 Antivirus detection for dropped file 2->48 52 17 other signatures 2->52 8 VJV2AjJ7Na.exe 14 5 2->8         started        signatures3 50 Uses the Telegram API (likely for C&C communication) 32->50 process4 dnsIp5 38 ip-api.com 208.95.112.1, 49710, 80 TUT-ASUS United States 8->38 40 api.telegram.org 149.154.167.220, 443, 49719 TELEGRAMRU United Kingdom 8->40 42 main-although.gl.at.ply.gg 147.185.221.21, 30970, 49720 SALSGIVERUS United States 8->42 30 C:\Users\user\AppData\Roaming\XClient.exe, PE32 8->30 dropped 54 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 8->54 56 Protects its processes via BreakOnTermination flag 8->56 58 Bypasses PowerShell execution policy 8->58 60 3 other signatures 8->60 13 powershell.exe 23 8->13         started        16 powershell.exe 22 8->16         started        18 powershell.exe 23 8->18         started        20 powershell.exe 8->20         started        file6 signatures7 process8 signatures9 62 Loading BitLocker PowerShell Module 13->62 22 conhost.exe 13->22         started        24 conhost.exe 16->24         started        26 conhost.exe 18->26         started        28 conhost.exe 20->28         started        process10
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/a9f1d82a7954d86d746086969c0d7b7b5ca65ccfd0d6a375931a6826eca1a8c7
Detection:
xworm
Create hunting rule
Link:
https://mwdb.cert.pl/sample/a9f1d82a7954d86d746086969c0d7b7b5ca65ccfd0d6a375931a6826eca1a8c7/
Threat name:
ByteCode-MSIL.Backdoor.XWorm
Create hunting rule
Status:
Malicious
First seen:
2024-07-26 12:31:42 UTC
File Type:
PE (.Net Exe)
Extracted files:
1
AV detection:
31 of 37 (83.78%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=vhy5qktzktmg25daq2ljydl3pnokmxgp2dlkg5mtdjucn3fbvddq._file
Verdict:
malicious
Similar samples:
495c76a1f5b27c1d1dd4c02a2d6b14c33f02f7fff1d4720e9f751055f9dd9a51
XWorm
902f94aa7222739a873f8f2805428e89822fc34842a0d731828ca0d6fce69dd6
XWorm
a08b846be9052a2614ef6a6920260d465774f5da9926f6d08449a2e4eb27b787
XWorm
a9f1d82a7954d86d746086969c0d7b7b5ca65ccfd0d6a375931a6826eca1a8c7
XWorm
d545f5b27e90abc54cf5a37c35e866c08336a500cecd95e8267c0c729a6b9bbc
XWorm
+ 718 additional samples on MalwareBazaar
Result
Malware family:
xworm
Create hunting rule
Score:
  10/10
Tags:
family:xworm execution rat trojan
Link:
https://tria.ge/reports/240726-x2m2sazanp/
Behaviour
Modifies data under HKEY_USERS
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Looks up external IP address via web service
Checks computer location settings
Drops startup file
Command and Scripting Interpreter: PowerShell
Detect Xworm Payload
Xworm
Malware Config
C2 Extraction:
main-although.gl.at.ply.gg:30970
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/c0d835cd-78a6-4a01-9822-5514846a4f66
Unpacked files
SH256 hash:
a9f1d82a7954d86d746086969c0d7b7b5ca65ccfd0d6a375931a6826eca1a8c7
MD5 hash:
99088d7d8b409b4039b02295e64a686f
SHA1 hash:
f58dad3090854f8ab5cc3de89d6cdaeb151883d4
Detections:
XWorm
Create hunting rule
Link:
https://www.unpac.me/results/ae640253-bf77-462f-add6-034457488e71/
Parent samples :
a9f1d82a7954d86d746086969c0d7b7b5ca65ccfd0d6a375931a6826eca1a8c7
098a170344a4ca7efe3e0c8b48c25a64fe0570b68eb0f3032c229e81597c1fbc
ba61b838a6b159d1d8f6fbbd1c80016fe7277225d1847de9ae50d0d83b29f9f1
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/a9f1d82a7954d86d746086969c0d7b7b5ca65ccfd0d6a375931a6826eca1a8c7

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:ByteCode_MSIL_Backdoor_AsyncRAT
Create hunting rule
Author:ReversingLabs
Description:Yara rule that detects AsyncRAT backdoor.
Rule name:DebuggerCheck__RemoteAPI
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:Disable_Defender
Create hunting rule
Author:iam-py-test
Description:Detect files disabling or modifying Windows Defender, Windows Firewall, or Microsoft Smartscreen
Rule name:EXE_RAT_XWorm_April2024
Create hunting rule
Author:Yashraj Solanki - Cyber Threat Intelligence Analyst at Bridewell
Rule name:INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA
Create hunting rule
Author:ditekSHen
Description:Detects Windows executables referencing non-Windows User-Agents
Rule name:INDICATOR_SUSPICIOUS_EXE_TelegramChatBot
Create hunting rule
Author:ditekSHen
Description:Detects executables using Telegram Chat Bot
Rule name:MALWARE_Win_AsyncRAT
Create hunting rule
Author:ditekSHen
Description:Detects AsyncRAT
Rule name:MALWARE_Win_XWorm
Create hunting rule
Author:ditekSHen
Description:Detects XWorm
Rule name:Multifamily_RAT_Detection
Create hunting rule
Author:Lucas Acha (http://www.lukeacha.com)
Description:Generic Detection for multiple RAT families, PUPs, Packers and suspicious executables
Rule name:NETexecutableMicrosoft
Create hunting rule
Author:malware-lu
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:SUSP_DOTNET_PE_List_AV
Create hunting rule
Author:SECUINFRA Falcon Team
Description:Detecs .NET Binary that lists installed AVs

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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