MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 21a67b87cb9cb7df6a93ab35893ade1f2f10fb8406484c1bb99748bf5da98132. 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 14 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 21a67b87cb9cb7df6a93ab35893ade1f2f10fb8406484c1bb99748bf5da98132
SHA3-384 hash: 6baeda758130e9fa6c217b0e06ea4170b163df079dc81b64dbb6660dd4814a4f31a1682c1291ee9caf5247677ff963d8
SHA1 hash: 8b6e2d7a2197c1995a4e0a20d52311ef92c43089
MD5 hash: 46f4e9e014b98c134115aea903685518
humanhash: fillet-beryllium-happy-north
File name:test4.exe
Download: download sample
Signature XWorm
Create hunting rule
File size:119'808 bytes
First seen:2024-09-30 10:42:55 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (49'076 x AgentTesla, 20'041 x Formbook, 12'353 x SnakeKeylogger)
ssdeep 3072:M27NtI+bgqst9ji3VtOljKQUgZ66z+n4VJ3bd8R:7Zbg/T+lQhZ66z+n4VZbd8
TLSH T13EC3BFD66F9850FCF199BABF979BE07D4DE66C8204F65E1E22CCF14F4222D848A441B1
TrID 67.7% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
9.7% (.EXE) Win64 Executable (generic) (10523/12/4)
6.0% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
4.1% (.EXE) Win32 Executable (generic) (4504/4/1)
Magika pebin
File icon (PE):PE icon
dhash icon 6763b3a74bdf7b33 (7 x XWorm, 2 x AsyncRAT, 1 x NanoCore)
Reporter lontze7
Tags:xworm

Intelligence

File Origin
# of uploads :
1
# of downloads :
135
Origin country :
FR FR
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
test4.exe
Verdict:
Malicious activity
Analysis date:
2024-09-30 10:44:34 UTC
Tags:
xworm
Link:
https://app.any.run/tasks/747aa419-5e4b-45e3-862d-cf68c84f3bcc

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.Packed.Loveletter-10024677-0
Create hunting rule

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

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

Verdict:
Malicious
Score:
99.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=66fac4a7c85f12c405da71fc
Tags:
Keylog Micro Word
Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
Creating a window
Connection attempt
Setting a global event handler for the keyboard
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
asyncrat backdoor hook rat vbnet
Link:
https://www.filescan.io/uploads/66fa80c2718049dcaee4c5c6/reports/b629cf2f-9cb3-407a-835f-21b4dfa83e6d/overview
Verdict:
Malicious
Labled as:
Jalapeno.Generic
Link:
https://www.hybrid-analysis.com/sample/21a67b87cb9cb7df6a93ab35893ade1f2f10fb8406484c1bb99748bf5da98132
Malware family:
XWorm
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/69a3f26e-95ac-4ab3-b6e0-97d97ec24b30
Result
Threat name:
XWorm
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1522604
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains potential unpacker
AI detected suspicious sample
Antivirus / Scanner detection for submitted sample
C2 URLs / IPs found in malware configuration
Found malware configuration
Found potential dummy code loops (likely to delay analysis)
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
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
Yara detected XWorm
Behaviour
Behavior Graph:
Download SVG
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/21a67b87cb9cb7df6a93ab35893ade1f2f10fb8406484c1bb99748bf5da98132
Detection:
xworm
Create hunting rule
Link:
https://mwdb.cert.pl/sample/21a67b87cb9cb7df6a93ab35893ade1f2f10fb8406484c1bb99748bf5da98132/
Threat name:
ByteCode-MSIL.Backdoor.XWorm
Create hunting rule
Status:
Malicious
First seen:
2024-09-29 16:17:00 UTC
File Type:
PE (.Net Exe)
Extracted files:
16
AV detection:
31 of 38 (81.58%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=egthxb6lts3562utvm2ysow6d4xrb64eazeeyg5zs5el6xnjqeza._file
Verdict:
malicious
Label(s):
xworm
Create hunting rule
Result
Malware family:
xworm
Create hunting rule
Score:
  10/10
Tags:
family:xworm rat trojan
Link:
https://tria.ge/reports/240930-mr866avfka/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Detect Xworm Payload
Xworm
Malware Config
C2 Extraction:
10.110.0.10:7000
Verdict:
Malicious
Tags:
rat xworm asyncrat asyncrat
YARA:
win_mal_XWorm MALWARE_Win_XWorm win_xworm_bytestring
Link:
https://app.threat.zone/submission/d79c2aef-0879-4e42-afe1-b75c05880f2e
Unpacked files
SH256 hash:
21a67b87cb9cb7df6a93ab35893ade1f2f10fb8406484c1bb99748bf5da98132
MD5 hash:
46f4e9e014b98c134115aea903685518
SHA1 hash:
8b6e2d7a2197c1995a4e0a20d52311ef92c43089
Detections:
win_xworm_w0
Create hunting rule
Link:
https://www.unpac.me/results/5314d1db-5209-4fcd-924f-65ac89974ca4/
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/21a67b87cb9cb7df6a93ab35893ade1f2f10fb8406484c1bb99748bf5da98132

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:Detect_PowerShell_Obfuscation
Create hunting rule
Author:daniyyell
Description:Detects obfuscated PowerShell commands commonly used in malicious scripts.
Rule name:INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA
Create hunting rule
Author:ditekSHen
Description:Detects Windows executables referencing non-Windows User-Agents
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
Rule name:win_xworm_bytestring
Create hunting rule
Author:Matthew @ Embee_Research
Description:Detects bytestring present in unobfuscated xworm
Rule name:win_xworm_w0
Create hunting rule
Author:jeFF0Falltrades
Description:Detects win.xworm.
Rule name:xworm
Create hunting rule
Author:jeFF0Falltrades

File information

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

Web download

XWorm

Executable exe 21a67b87cb9cb7df6a93ab35893ade1f2f10fb8406484c1bb99748bf5da98132

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3201427/
  
Delivery method
Distributed via web download

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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