MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 46da3fcbf018eba10b7614fe5accde6ba53e5da31b16d51af725810de6340c83. 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



Formbook


Vendor detections: 11


Intelligence 11 IOCs YARA File information Comments

SHA256 hash: 46da3fcbf018eba10b7614fe5accde6ba53e5da31b16d51af725810de6340c83
SHA3-384 hash: 033418ed80d63cb3cb806926103ed6c7e1bccafc0908184d8fd098c9004f88a4767c9028d6c18cee723285007f28f111
SHA1 hash: 50987b6eca542591654296fb5ef386c3c62e033f
MD5 hash: 8c6c0b6a95b7e9e6c5e59623e9ccb071
humanhash: skylark-purple-oregon-alaska
File name:PO-0427-26 - 150-30.js
Download: download sample
Signature Formbook
File size:1'481'292 bytes
First seen:2025-04-28 11:23:06 UTC
Last seen:Never
File type:Java Script (JS) js
MIME type:text/plain
ssdeep 192:22a2NZ2Z2F2N2Q2O2aI2PBT252l2a2NZ2Z2F2N2Q2O2aI2PBT2L2a2NZ2Z2F2N2t:QO2GhI61S/Lnzu6AJCYg
Threatray 70 similar samples on MalwareBazaar
TLSH T14E652AA983931E22FCDB5399293C2CC018CA5CFA75D3739CDB7640A46F8566DE683274
Magika javascript
Reporter abuse_ch
Tags:FormBook js

Intelligence


File Origin
# of uploads :
1
# of downloads :
456
Origin country :
NL NL
Vendor Threat Intelligence
Verdict:
Malicious
Score:
99.9%
Tags:
obfuscate cryxos xtreme shell
Result
Threat name:
FormBook
Detection:
malicious
Classification:
troj.spyw.expl.evad
Score:
100 / 100
Signature
Connects to a pastebin service (likely for C&C)
Found direct / indirect Syscall (likely to bypass EDR)
Injects a PE file into a foreign processes
JavaScript source code contains functionality to generate code involving a shell, file or stream
Joe Sandbox ML detected suspicious sample
JScript performs obfuscated calls to suspicious functions
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
Modifies the context of a thread in another process (thread injection)
Multi AV Scanner detection for submitted file
Queues an APC in another process (thread injection)
Sigma detected: Base64 Encoded PowerShell Command Detected
Sigma detected: PowerShell Base64 Encoded FromBase64String Cmdlet
Sigma detected: WScript or CScript Dropper
Suricata IDS alerts for network traffic
Suspicious execution chain found
Suspicious powershell command line found
Switches to a custom stack to bypass stack traces
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Windows Scripting host queries suspicious COM object (likely to drop second stage)
Writes to foreign memory regions
Wscript starts Powershell (via cmd or directly)
Yara detected FormBook
Yara detected Powershell decode and execute
Yara detected Powershell download and execute
Yara detected UAC Bypass using CMSTP
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1676213 Sample: PO-0427-26 - 150-30.js Startdate: 28/04/2025 Architecture: WINDOWS Score: 100 40 paste.ee 2->40 42 www.thisquartet.rocks 2->42 44 12 other IPs or domains 2->44 62 Suricata IDS alerts for network traffic 2->62 64 Malicious sample detected (through community Yara rule) 2->64 66 Multi AV Scanner detection for submitted file 2->66 70 9 other signatures 2->70 12 wscript.exe 1 1 2->12         started        signatures3 68 Connects to a pastebin service (likely for C&C) 40->68 process4 signatures5 86 JScript performs obfuscated calls to suspicious functions 12->86 88 Suspicious powershell command line found 12->88 90 Wscript starts Powershell (via cmd or directly) 12->90 92 2 other signatures 12->92 15 powershell.exe 14 15 12->15         started        process6 dnsIp7 52 paste.ee 23.186.113.60, 443, 49698, 49699 KLAYER-GLOBALNL Reserved 15->52 54 archive.org 207.241.224.2, 443, 49694 INTERNET-ARCHIVEUS United States 15->54 56 ia801700.us.archive.org 207.241.233.30, 443, 49695 INTERNET-ARCHIVEUS United States 15->56 58 Writes to foreign memory regions 15->58 60 Injects a PE file into a foreign processes 15->60 19 MSBuild.exe 15->19         started        22 conhost.exe 15->22         started        signatures8 process9 signatures10 72 Maps a DLL or memory area into another process 19->72 24 HpvtES5Yzo8ue.exe 19->24 injected process11 signatures12 74 Maps a DLL or memory area into another process 24->74 76 Found direct / indirect Syscall (likely to bypass EDR) 24->76 27 fontview.exe 13 24->27         started        process13 signatures14 78 Tries to steal Mail credentials (via file / registry access) 27->78 80 Tries to harvest and steal browser information (history, passwords, etc) 27->80 82 Modifies the context of a thread in another process (thread injection) 27->82 84 3 other signatures 27->84 30 HpvtES5Yzo8ue.exe 27->30 injected 34 chrome.exe 27->34         started        36 firefox.exe 27->36         started        process15 dnsIp16 46 www.anybunny.com 104.21.54.78, 49710, 49711, 49712 CLOUDFLARENETUS United States 30->46 48 thisquartet.rocks 66.29.141.173, 49702, 49703, 49704 ADVANTAGECOMUS United States 30->48 50 3 other IPs or domains 30->50 94 Found direct / indirect Syscall (likely to bypass EDR) 30->94 38 WerFault.exe 4 34->38         started        signatures17 process18
Threat name:
Script-JS.Trojan.Znyonm
Status:
Malicious
First seen:
2025-04-28 11:02:53 UTC
File Type:
Text (JavaScript)
AV detection:
9 of 24 (37.50%)
Threat level:
  5/5
Result
Malware family:
n/a
Score:
  8/10
Tags:
execution
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Command and Scripting Interpreter: JavaScript
Enumerates physical storage devices
Suspicious use of SetThreadContext
Checks computer location settings
Blocklisted process makes network request
Command and Scripting Interpreter: PowerShell
Please note that we are no longer able to provide a coverage score for Virus Total.

File information


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

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