MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 158d34bbfe57b08b35253dc093ce5555facdefbcdd19abe09a61b79e6ef83e47. 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: 14


Intelligence 14 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 158d34bbfe57b08b35253dc093ce5555facdefbcdd19abe09a61b79e6ef83e47
SHA3-384 hash: 2bb8ded8a7745f30c5135710cd6869faae0842d2d26f750d37df13a38650a53631a7b21add69a29e4a18137a2ddc7da4
SHA1 hash: 7c9289a25ef9654d0f9ab507349f20cc7f303391
MD5 hash: 61cb7ffabb63752fb5f9ce4201aa5ff9
humanhash: maryland-pizza-venus-eleven
File name:update.exe
Download: download sample
Signature XWorm
Create hunting rule
File size:418'304 bytes
First seen:2025-05-21 22:35:11 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 791afc20c4b12ce9a5eb76c24292964a (1 x XWorm)
ssdeep 6144:ctjNOdpWZxNqD4fFzb1gDKqZemXojKyL:ctjXv4eGKluoj
TLSH T12994F827FB6DAACDCE4642B9B8750DB40B954F334045E189F0E6C91E8D132EE9E4D4E8
TrID 44.4% (.EXE) Win64 Executable (generic) (10522/11/4)
21.3% (.EXE) Win16 NE executable (generic) (5038/12/1)
8.7% (.ICL) Windows Icons Library (generic) (2059/9)
8.5% (.EXE) OS/2 Executable (generic) (2029/13)
8.4% (.EXE) Generic Win/DOS Executable (2002/3)
Magika pebin
dhash icon ecec889ce6d8e8f0 (40 x Formbook, 21 x AgentTesla, 12 x SnakeKeylogger)
Reporter skocherhan
Tags:exe thomson101 xworm


Avatar
skocherhan
https://github.com/thomson101/PDF/releases/download/Release/update.exe

Intelligence

File Origin
# of uploads :
1
# of downloads :
496
Origin country :
GB GB
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
update.exe
Verdict:
Malicious activity
Analysis date:
2025-05-21 22:50:47 UTC
Tags:
xworm crypto-regex auto-startup auto-reg
Link:
https://app.any.run/tasks/e6d0fc72-2f56-40e9-ac32-7f1428ef138d

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Generic.Trojan.Caller.Marte.A.0A3A6ECF.11216.32567.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
93.3%
Link:
https://cyber-fortress.com/docs/result/index.php?id=682e56d4c28c67d66643fa06
Tags:
malware
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
DNS request
Creating a file in the Program Files subdirectories
Creating a process with a hidden window
Adding an exclusion to Microsoft Defender
Verdict:
Unknown
Threat level:
  2.5/10
Confidence:
100%
Tags:
anti-debug packed
Link:
https://www.filescan.io/uploads/682e55aafd02ed5e05811d7e/reports/0d3061ae-fa97-4dfe-8927-7233175f646a/overview
Verdict:
Malicious
Labled as:
Trojan.Caller.Marte.A.Generic
Link:
https://www.hybrid-analysis.com/sample/158d34bbfe57b08b35253dc093ce5555facdefbcdd19abe09a61b79e6ef83e47
Malware family:
Generic Malware
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/64651965-8805-4db5-b772-8f59c7de1019
Result
Threat name:
XWorm
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1696379
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
Bypasses PowerShell execution policy
C2 URLs / IPs found in malware configuration
Found malware configuration
Joe Sandbox ML detected suspicious sample
Loading BitLocker PowerShell Module
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
Sample uses string decryption to hide its real strings
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected XWorm
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1696379 Sample: update.exe Startdate: 22/05/2025 Architecture: WINDOWS Score: 100 43 Found malware configuration 2->43 45 Malicious sample detected (through community Yara rule) 2->45 47 Multi AV Scanner detection for submitted file 2->47 49 7 other signatures 2->49 7 update.exe 1 6 2->7         started        12 write64.exe 2->12         started        14 svchost.exe 2->14         started        16 5 other processes 2->16 process3 dnsIp4 39 103.245.237.11, 49691, 49693, 49694 ABOVE-AS-APAboveNetCommunicationsTaiwanTW unknown 7->39 37 C:\Users\user\AppData\Roaming\write64.exe, PE32+ 7->37 dropped 53 Protects its processes via BreakOnTermination flag 7->53 55 Bypasses PowerShell execution policy 7->55 57 Uses schtasks.exe or at.exe to add and modify task schedules 7->57 59 Adds a directory exclusion to Windows Defender 7->59 18 powershell.exe 23 7->18         started        21 powershell.exe 23 7->21         started        23 powershell.exe 23 7->23         started        25 2 other processes 7->25 61 Multi AV Scanner detection for dropped file 12->61 41 127.0.0.1 unknown unknown 14->41 file5 signatures6 process7 signatures8 51 Loading BitLocker PowerShell Module 18->51 27 conhost.exe 18->27         started        29 conhost.exe 21->29         started        31 conhost.exe 23->31         started        33 conhost.exe 25->33         started        35 conhost.exe 25->35         started        process9
Score:
69%
Verdict:
Susipicious
File Type:
PE
Link:
https://malprob.io/report/158d34bbfe57b08b35253dc093ce5555facdefbcdd19abe09a61b79e6ef83e47
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/158d34bbfe57b08b35253dc093ce5555facdefbcdd19abe09a61b79e6ef83e47/
Threat name:
Win64.Trojan.CallerMarte
Create hunting rule
Status:
Malicious
First seen:
2025-05-21 22:37:28 UTC
File Type:
PE+ (Exe)
Extracted files:
2
AV detection:
19 of 24 (79.17%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=cwgtjo76k6yiwnjfhxajhtsvkx5m33543um2xye2mg3z43xyhzdq._file
Verdict:
malicious
Label(s):
donut_injector
Create hunting rule
xworm
Create hunting rule
Similar samples:
error
XWorm
Result
Malware family:
xworm
Create hunting rule
Score:
  10/10
Tags:
family:donutloader family:xworm execution loader persistence rat trojan
Link:
https://tria.ge/reports/250521-2jzp3sek4v/
Behaviour
Scheduled Task/Job: Scheduled Task
Suspicious behavior: AddClipboardFormatListener
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
Enumerates physical storage devices
Adds Run key to start application
Checks computer location settings
Drops startup file
Executes dropped EXE
Command and Scripting Interpreter: PowerShell
Detect Xworm Payload
Detects DonutLoader
DonutLoader
Donutloader family
Xworm
Xworm family
Malware Config
C2 Extraction:
103.245.237.11:8888
127.0.0.1:8888
Unpacked files
SH256 hash:
158d34bbfe57b08b35253dc093ce5555facdefbcdd19abe09a61b79e6ef83e47
MD5 hash:
61cb7ffabb63752fb5f9ce4201aa5ff9
SHA1 hash:
7c9289a25ef9654d0f9ab507349f20cc7f303391
Link:
https://www.unpac.me/results/877a42ea-3b0c-48ec-a58b-b14f20232f92/
Malware family:
DonutLoader
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/158d34bbfe57/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/158d34bbfe57b08b35253dc093ce5555facdefbcdd19abe09a61b79e6ef83e47

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:golang_bin_JCorn_CSC846
Create hunting rule
Author:Justin Cornwell
Description:CSC-846 Golang detection ruleset
Rule name:pe_detect_tls_callbacks
Create hunting rule
Rule name:Sus_Obf_Enc_Spoof_Hide_PE
Create hunting rule
Author:XiAnzheng
Description:Check for Overlay, Obfuscating, Encrypting, Spoofing, Hiding, or Entropy Technique(can create FP)

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 (GUARD_CF)high
Reviews
IDCapabilitiesEvidence
WIN_BASE_APIUses Win Base APIKERNEL32.dll::LoadLibraryA

Comments