MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b57aff2eb48e3121344494e3e4d60ce0d357c48a2a35806e9024fcac9202ebcd. 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 2 File information Comments
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SHA256 hash: b57aff2eb48e3121344494e3e4d60ce0d357c48a2a35806e9024fcac9202ebcd
SHA3-384 hash: 5f4305b2872ff128e05d3e95231afb2831fdc27a31b0a3d5b0c2e5f32b494f20ab373760c10dec614cada12df4d27226
SHA1 hash: e7bd03cc3b2c86296c7d7c705b3bd9312e1e7008
MD5 hash: 17a1af7dddc90b2645ba3284ad02b6cc
humanhash: don-tango-eight-gee
File name:AMENDED PURCHASE ORDER_202027659.js
Download: download sample
Signature XWorm
Create hunting rule
File size:195'838 bytes
First seen:2025-08-27 08:18:52 UTC
Last seen:Never
File type:Java Script (JS) js
MIME type:text/plain
ssdeep 3072:5Dh+OQHW/HWBFun2sj1+J9t4ywSVUadVipzSQS7292YuKILrJhEVy5iZCltV0puI:B1HWBFu2sj1+J9t4ywSV7ozSpnK81hEn
Threatray 258 similar samples on MalwareBazaar
TLSH T19214C43CD9B0ECD843BA71D069BE374A208C5F73B6785B1CF8C06DAA4CA5149EB76548
Magika javascript
Reporter abuse_ch
Tags:js xworm

Intelligence

File Origin
# of uploads :
1
# of downloads :
74
Origin country :
SE SE
Vendor Threat Intelligence
Detection(s):
SecuriteInfo.com.BAT.Obfus-5.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
92.5%
Link:
https://cyber-fortress.com/docs/result/index.php?id=68aebf973e988eb6ab82ca8d
Tags:
obfuscate autorun xtreme shell
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
anti-vm base64 evasive fingerprint masquerade obfuscated powershell
Link:
https://www.filescan.io/uploads/68aebf9c2eee5ca64cac3e81/reports/c7038d71-7195-4327-b7a5-2394d434cbcd/overview
Verdict:
Malicious
Labled as:
TrojanDownloader/PS.NetLoader
Link:
https://www.hybrid-analysis.com/sample/b57aff2eb48e3121344494e3e4d60ce0d357c48a2a35806e9024fcac9202ebcd
Verdict:
Malicious
File Type:
js
First seen:
2025-08-26T15:42:00Z UTC
Last seen:
2025-08-26T15:42:00Z UTC
Hits:
~100
Link:
https://opentip.kaspersky.com/b57aff2eb48e3121344494e3e4d60ce0d357c48a2a35806e9024fcac9202ebcd/results?tab=lookup
Result
Threat name:
XWorm
Create hunting rule
Detection:
malicious
Classification:
troj.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1766033
Signature
.NET source code contains a sample name check
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains potential unpacker
.NET source code references suspicious native API functions
C2 URLs / IPs found in malware configuration
Creates processes via WMI
Drops script or batch files to the startup folder
Found malware configuration
Found suspicious powershell code related to unpacking or dynamic code loading
Joe Sandbox ML detected suspicious sample
Loading BitLocker PowerShell Module
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 has a suspicious name (potential lure to open the executable)
Sample uses string decryption to hide its real strings
Sigma detected: Base64 Encoded PowerShell Command Detected
Sigma detected: Drops script at startup location
Sigma detected: PowerShell Base64 Encoded FromBase64String Cmdlet
Sigma detected: PowerShell Base64 Encoded IEX Cmdlet
Sigma detected: WScript or CScript Dropper
Suricata IDS alerts for network traffic
Suspicious execution chain found
Suspicious powershell command line found
Uses dynamic DNS services
Windows Scripting host queries suspicious COM object (likely to drop second stage)
Wscript starts Powershell (via cmd or directly)
Yara detected XWorm
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1766033 Sample: AMENDED PURCHASE ORDER_2020... Startdate: 27/08/2025 Architecture: WINDOWS Score: 100 108 hosterphobic.duckdns.org 2->108 122 Suricata IDS alerts for network traffic 2->122 124 Found malware configuration 2->124 126 Malicious sample detected (through community Yara rule) 2->126 130 15 other signatures 2->130 10 wscript.exe 1 1 2->10         started        14 cmd.exe 1 2->14         started        16 cmd.exe 1 2->16         started        18 8 other processes 2->18 signatures3 128 Uses dynamic DNS services 108->128 process4 dnsIp5 88 C:\Users\user\AppData\...\DynamicHandler.bat, ASCII 10->88 dropped 136 Wscript starts Powershell (via cmd or directly) 10->136 138 Windows Scripting host queries suspicious COM object (likely to drop second stage) 10->138 140 Suspicious execution chain found 10->140 142 Creates processes via WMI 10->142 21 cmd.exe 1 10->21         started        24 cmd.exe 1 14->24         started        26 conhost.exe 14->26         started        28 cmd.exe 1 16->28         started        30 conhost.exe 16->30         started        110 127.0.0.1 unknown unknown 18->110 32 cmd.exe 18->32         started        34 cmd.exe 18->34         started        36 cmd.exe 18->36         started        38 11 other processes 18->38 file6 signatures7 process8 signatures9 132 Suspicious powershell command line found 21->132 134 Wscript starts Powershell (via cmd or directly) 21->134 40 cmd.exe 1 21->40         started        42 conhost.exe 21->42         started        44 cmd.exe 1 24->44         started        47 cmd.exe 1 28->47         started        49 cmd.exe 32->49         started        51 cmd.exe 34->51         started        53 cmd.exe 36->53         started        55 cmd.exe 38->55         started        57 3 other processes 38->57 process10 signatures11 59 cmd.exe 2 40->59         started        148 Suspicious powershell command line found 44->148 150 Wscript starts Powershell (via cmd or directly) 44->150 62 powershell.exe 44->62         started        65 conhost.exe 44->65         started        67 2 other processes 47->67 69 2 other processes 49->69 71 2 other processes 51->71 73 2 other processes 53->73 75 2 other processes 55->75 77 6 other processes 57->77 process12 file13 144 Suspicious powershell command line found 59->144 146 Wscript starts Powershell (via cmd or directly) 59->146 79 powershell.exe 4 30 59->79         started        84 conhost.exe 59->84         started        90 C:\Users\user\AppData\Roaming\...\0870.bat, ASCII 62->90 dropped 92 C:\Users\user\AppData\Roaming\...\c9b7.bat, ASCII 67->92 dropped 94 C:\Users\user\AppData\Roaming\...\86e8.bat, ASCII 69->94 dropped 96 C:\Users\user\AppData\Roaming\...\0e26.bat, ASCII 71->96 dropped 98 C:\Users\user\AppData\Roaming\...\e771.bat, ASCII 73->98 dropped 100 C:\Users\user\AppData\Roaming\...\0434.bat, ASCII 75->100 dropped 102 C:\Users\user\AppData\Roaming\...\a974.bat, ASCII 77->102 dropped 104 C:\Users\user\AppData\Roaming\...\a265.bat, ASCII 77->104 dropped 106 C:\Users\user\AppData\Roaming\...\12ad.bat, ASCII 77->106 dropped signatures14 process15 dnsIp16 112 hosterphobic.duckdns.org 193.187.91.237, 1111, 49681 OBE-EUROPEObenetworkEuropeSE Sweden 79->112 86 C:\Users\user\AppData\Roaming\...\73b3.bat, ASCII 79->86 dropped 114 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 79->114 116 Drops script or batch files to the startup folder 79->116 118 Found suspicious powershell code related to unpacking or dynamic code loading 79->118 120 Loading BitLocker PowerShell Module 79->120 file17 signatures18
Verdict:
inconclusive
YARA:
1 match(es)
Tags:
Base64 Block Contains Base64 Block PowerShell
Link:
https://app.malva.re/file/17a1af7dddc90b2645ba3284ad02b6cc
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/b57aff2eb48e3121344494e3e4d60ce0d357c48a2a35806e9024fcac9202ebcd/
Verdict:
Malicious
Threat:
Family.XWORM
Link:
https://tip.neiki.dev/file/b57aff2eb48e3121344494e3e4d60ce0d357c48a2a35806e9024fcac9202ebcd
Threat name:
Script-JS.Backdoor.Xworm
Create hunting rule
Status:
Suspicious
First seen:
2025-08-26 22:09:18 UTC
File Type:
Text
AV detection:
9 of 38 (23.68%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=wv5p6lvuryyscncestr6jvqm4djvprekfi2ya3uqet6kzeqc5pgq._file
Verdict:
malicious
Label(s):
xworm
Create hunting rule
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error
XWorm
+ 248 additional samples on MalwareBazaar
Result
Malware family:
xworm
Create hunting rule
Score:
  10/10
Tags:
family:xworm defense_evasion execution rat trojan
Link:
https://tria.ge/reports/250827-j75l5axvax/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Command and Scripting Interpreter: JavaScript
Command and Scripting Interpreter: PowerShell
Drops startup file
Badlisted process makes network request
Modifies trusted root certificate store through registry
Detect Xworm Payload
Process spawned unexpected child process
Xworm
Xworm family
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/b57aff2eb48e3121344494e3e4d60ce0d357c48a2a35806e9024fcac9202ebcd

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_PS1_JAB_Pattern_Jun22_1
Create hunting rule
Author:Florian Roth (Nextron Systems)
Description:Detects suspicious UTF16 and Base64 encoded PowerShell code that starts with a $ sign and a single char variable
Reference:Internal Research
Rule name:Sus_CMD_Powershell_Usage
Create hunting rule
Author:XiAnzheng
Description:May Contain(Obfuscated or no) Powershell or CMD Command that can be abused by threat actor(can create FP)

File information

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

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