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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 1dfaef9ba463e7400a5474b8e530b1b8ceee77e6e79c7a3adf41d030c44ebf8b. 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: 12


Intelligence 12 IOCs YARA 1 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 1dfaef9ba463e7400a5474b8e530b1b8ceee77e6e79c7a3adf41d030c44ebf8b
SHA3-384 hash: 8b14f002b21a8f73220df1b1078a5a874bedef0f98d2456b2e0a171d0a026aa49a6da82faa8feed01b9b3c6b6f91e6bd
SHA1 hash: 61b8583e8c9f68f306ddee7ebb481e0ba416ce64
MD5 hash: e75269fb5aef268503cc8e41bb9248a7
humanhash: whiskey-foxtrot-mike-saturn
File name:Court Letter-Against your company_Case open.JS
Download: download sample
Signature XWorm
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File size:3'840'771 bytes
First seen:2026-09-22 15:10:19 UTC
Last seen:Never
File type:Java Script (JS) js
MIME type:text/plain
ssdeep 98304:4fj2x/AY75+0BoqYZGRxr6XBaoHOHlxqpF7OimQr9zITxNp+KX3:UKx/AY75+0G66OHfqppbJBsTxfP
TLSH T1CF061D502AE8E4607B3D322CF0366511875919C74357FE2E367C9D43AB72BCA5A8CCB9
Magika javascript
Reporter abuse_ch
Tags:js xworm

Intelligence

File Origin
# of uploads :
1
# of downloads :
150
Origin country :
SE SE
Vendor Threat Intelligence
No detections
Detection(s):
SecuriteInfo.com.Other.Malware-gen.25241727.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
anti-debug dropper evasive lolbin obfuscated packed repaired tracker
Link:
https://www.filescan.io/uploads/6ab29a6560fa2f1bc9d29ee6/reports/0b127bc7-0984-4a28-9729-b7b0dadb7c33/overview
Verdict:
Malicious
Labled as:
Trojan.Cryxos.JS
Link:
https://www.hybrid-analysis.com/sample/1dfaef9ba463e7400a5474b8e530b1b8ceee77e6e79c7a3adf41d030c44ebf8b
Verdict:
Malicious
File Type:
js
First seen:
2026-09-22T02:50:00Z UTC
Last seen:
2026-09-24T03:30:00Z UTC
Hits:
~1000
Link:
https://opentip.kaspersky.com/1dfaef9ba463e7400a5474b8e530b1b8ceee77e6e79c7a3adf41d030c44ebf8b/results?tab=lookup
Result
Threat name:
DonutLoader, XWorm
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Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1976283
Signature
.NET source code contains potential unpacker
.NET source code references suspicious native API functions
Antivirus detection for dropped file
C2 URLs / IPs found in malware configuration
Detected Windows Script Host debugger hammering
Found malware configuration
Hides threads from debuggers
JavaScript source code contains call to eval() to check own source code (likely for evading instrumentation)
JavaScript source code contains functionality to generate code involving a shell, file or stream
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
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: WScript or CScript Dropper
Suricata IDS alerts for network traffic
Unusual module load detection (module proxying)
Windows Scripting host queries suspicious COM object (likely to drop second stage)
WScript reads language and country specific registry keys (likely country aware script)
Yara detected DonutLoader
Yara detected XWorm
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1976283 Sample: Court Letter-Against your c... Startdate: 22/09/2026 Architecture: WINDOWS Score: 100 30 pki-goog.l.google.com 2->30 32 keyauth.win 2->32 34 c.pki.goog 2->34 40 Suricata IDS alerts for network traffic 2->40 42 Found malware configuration 2->42 44 Malicious sample detected (through community Yara rule) 2->44 46 10 other signatures 2->46 9 wscript.exe 1 3 2->9         started        signatures3 process4 signatures5 48 Windows Scripting host queries suspicious COM object (likely to drop second stage) 9->48 50 WScript reads language and country specific registry keys (likely country aware script) 9->50 52 Detected Windows Script Host debugger hammering 9->52 12 UQYSHVXNFVWPWEVO.exe 1 4 9->12         started        process6 dnsIp7 36 89.106.83.35, 49723, 8823 HOSTERAM Germany 12->36 54 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 12->54 56 Hides threads from debuggers 12->56 58 Unusual module load detection (module proxying) 12->58 16 UQYSHVXNFVWPWEVO.exe 12->16         started        19 csc.exe 4 12->19         started        22 conhost.exe 12->22         started        signatures8 process9 file10 38 Antivirus detection for dropped file 16->38 28 C:\Users\user\...\UQYSHVXNFVWPWEVO.exe, PE32 19->28 dropped 24 conhost.exe 19->24         started        26 cvtres.exe 1 19->26         started        signatures11 process12
Score:
97%
Verdict:
Malware
File Type:
SCRIPT
Link:
https://malprob.io/report/1dfaef9ba463e7400a5474b8e530b1b8ceee77e6e79c7a3adf41d030c44ebf8b
Gathering data
Detection:
xworm
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Link:
https://mwdb.cert.pl/sample/1dfaef9ba463e7400a5474b8e530b1b8ceee77e6e79c7a3adf41d030c44ebf8b/
Threat name:
Script-JS.Trojan.Cryxos
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Status:
Malicious
First seen:
2026-09-22 10:28:52 UTC
File Type:
Text (JavaScript)
AV detection:
8 of 36 (22.22%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=dx5o7g5emptuacsuos4okmfrxdho457g46ohuow7ihidbrcox6fq._file
Verdict:
malicious
Label(s):
XWorm
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Link:
https://reports.threatray.com/cff17c89-1b2b-40ef-9a14-309020fc23e2
Result
Malware family:
xworm
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Score:
  10/10
Tags:
family:xworm defense_evasion discovery execution pyinstaller rat spyware stealer trojan upx
Link:
https://tria.ge/reports/260922-skcr9sxeqh/
Behaviour
Kills process with taskkill
Modifies registry class
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Command and Scripting Interpreter: JavaScript
Command and Scripting Interpreter: PowerShell
Detects Pyinstaller
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Suspicious use of NtSetInformationThreadHideFromDebugger
UPX packed file
Checks computer location settings
Executes dropped EXE
Loads dropped DLL
Reads user/profile data of web browsers
Detect Xworm Payload
Family: Xworm
Malware Config
C2 Extraction:
89.106.83.35:8823
n9XDTExINUpCrT/5d5t0Xw==:10
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/1dfaef9ba463e7400a5474b8e530b1b8ceee77e6e79c7a3adf41d030c44ebf8b

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:SUSP_VBS_Randomized_ActiveX_Downloader
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Author:Marjoriefort
Description:Dropper VBS obfusque : ActiveXObject a identifiant randomise (20 MAJ), SaveToFile, .Run
Reference:Veille fraicheur 2026-09-14 / grappe VBS randomisee

File information

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

Comments