MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 0bbf7cea6fb9f574c657e389e1e5d96925cae471aa9c31485caaecd22aaa91c7. 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: 13


Intelligence 13 IOCs YARA 17 File information Comments
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SHA256 hash: 0bbf7cea6fb9f574c657e389e1e5d96925cae471aa9c31485caaecd22aaa91c7
SHA3-384 hash: 878f1eb818074af5aeb599fc4ba950584a4b306ad1e973d9655275d97680def676202aa2592a1cf2467f6c0a6ed28feb
SHA1 hash: b1f8b8a8605cd6a52c8622f47cbec8250e53e2e7
MD5 hash: b89258d216366935842d7e3e6e15ce68
humanhash: lake-freddie-double-california
File name:b89258d216366935842d7e3e6e15ce68.js
Download: download sample
Signature Formbook
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File size:1'985'528 bytes
First seen:2026-03-12 17:14:43 UTC
Last seen:Never
File type:Java Script (JS) js
MIME type:text/plain
ssdeep 24576:UT6eCS8lyAdTjjX7JGp3twlBrDzeBzH2W3zFrd3P7x1TGaCKo6G3SBo4cizr3ikF:HzjNDQ/FXUXE6HhEp
TLSH T1DF95C06894D223440EA9E33883FB893D3673065E2878B6447E7B359DEE3BE317538495
Magika javascript
Reporter abuse_ch
Tags:FormBook js

Intelligence

File Origin
# of uploads :
1
# of downloads :
118
Origin country :
SE SE
Vendor Threat Intelligence
No detections
Detection(s):
SecuriteInfo.com.JS.Muldrop.1170.5312.30582.UNOFFICIAL
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Verdict:
Malicious
Score:
92.5%
Link:
https://cyber-fortress.com/docs/result/index.php?id=69b2f4ce5a439615ccbfc488
Tags:
vmdetect autorun
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
anti-vm base64 obfuscated repaired
Link:
https://www.filescan.io/uploads/69b2f4be493cb7d62df976b8/reports/0ae9e6cf-9098-49eb-a311-caddd9631495/overview
Verdict:
Malicious
Labled as:
Trojan.Cryxos.JS
Link:
https://www.hybrid-analysis.com/sample/0bbf7cea6fb9f574c657e389e1e5d96925cae471aa9c31485caaecd22aaa91c7
Verdict:
Malicious
File Type:
js
Detections:
PDM:Trojan.Win32.Generic Trojan-Dropper.Win32.Injector.sb Trojan-Downloader.JS.Cryptoload.sb Backdoor.Win32.Androm.sb Backdoor.Agent.HTTP.C&C Trojan-Spy.Win32.Noon.sb Trojan-PSW.Win32.Stealer.sb Trojan-Downloader.JS.SLoad.sb Trojan.Win32.Agent.sb Trojan.PowerShell.Cobalt.sb Trojan.JS.SAgent.sb HEUR:Trojan-Downloader.Script.Generic Trojan.Win32.InjectorNetT.s Trojan-Spy.Noon.HTTP.ServerRequest
Link:
https://opentip.kaspersky.com/0bbf7cea6fb9f574c657e389e1e5d96925cae471aa9c31485caaecd22aaa91c7/results?tab=lookup
Result
Threat name:
FormBook
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Detection:
malicious
Classification:
evad.troj.spyw.expl
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1882828
Signature
.NET source code contains method to dynamically call methods (often used by packers)
AI detected malicious Powershell script
Antivirus detection for URL or domain
Bypasses PowerShell execution policy
Creates autostart registry keys with suspicious values (likely registry only malware)
Injects a PE file into a foreign processes
Joe Sandbox ML detected suspicious sample
JScript performs obfuscated calls to suspicious functions
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: New RUN Key Pointing to Suspicious Folder
Sigma detected: WScript or CScript Dropper
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)
Unusual module load detection (module proxying)
Windows Scripting host queries suspicious COM object (likely to drop second stage)
Windows shortcut file (LNK) contains suspicious command line arguments
Writes to foreign memory regions
Wscript starts Powershell (via cmd or directly)
Yara detected FormBook
Yara detected Powershell decode and execute
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1882828 Sample: 4HQnyGkLyn.js Startdate: 12/03/2026 Architecture: WINDOWS Score: 100 64 www.vvpvxk5622.top 2->64 66 www.trabzonlojistik.online 2->66 68 22 other IPs or domains 2->68 78 Antivirus detection for URL or domain 2->78 80 Multi AV Scanner detection for submitted file 2->80 82 Yara detected FormBook 2->82 84 9 other signatures 2->84 11 wscript.exe 2 4 2->11         started        15 powershell.exe 19 2->15         started        17 powershell.exe 2->17         started        19 powershell.exe 17 2->19         started        signatures3 process4 file5 60 SystemUpdate_s1LwB...e_1773340031175.lnk, MS 11->60 dropped 62 C:\Temp\ps_s1LwB9hV8eNe_1773340031175.ps1, ASCII 11->62 dropped 102 JScript performs obfuscated calls to suspicious functions 11->102 104 Suspicious powershell command line found 11->104 106 Wscript starts Powershell (via cmd or directly) 11->106 112 4 other signatures 11->112 21 powershell.exe 16 11->21         started        108 Writes to foreign memory regions 15->108 110 Injects a PE file into a foreign processes 15->110 24 conhost.exe 15->24         started        26 aspnet_compiler.exe 15->26         started        28 aspnet_compiler.exe 15->28         started        34 10 other processes 15->34 30 conhost.exe 17->30         started        36 7 other processes 17->36 32 conhost.exe 1 19->32         started        38 5 other processes 19->38 signatures6 process7 signatures8 94 Writes to foreign memory regions 21->94 96 Injects a PE file into a foreign processes 21->96 40 aspnet_compiler.exe 21->40         started        43 aspnet_compiler.exe 21->43         started        45 conhost.exe 21->45         started        47 7 other processes 21->47 process9 signatures10 98 Maps a DLL or memory area into another process 40->98 49 XnRXN3Ooom.exe 40->49 injected 100 Unusual module load detection (module proxying) 43->100 process11 signatures12 76 Maps a DLL or memory area into another process 49->76 52 wscript.exe 13 49->52         started        process13 signatures14 86 Tries to steal Mail credentials (via file / registry access) 52->86 88 Tries to harvest and steal browser information (history, passwords, etc) 52->88 90 Modifies the context of a thread in another process (thread injection) 52->90 92 4 other signatures 52->92 55 4rqbMADIgn4FF.exe 52->55 injected 58 chrome.exe 52->58         started        process15 dnsIp16 70 an05-prod-v.cdn-ng.net 103.42.147.149, 49720, 49721, 49722 WSN-TW-NET-ASWorldstarNetworkTW Taiwan; Republic of China (ROC) 55->70 72 rnbfxqye.n.ttge.ru 103.73.67.130, 49733, 49734, 49735 SOFTLAYERUS United States 55->72 74 13 other IPs or domains 55->74
Score:
99%
Verdict:
Malware
File Type:
SCRIPT
Link:
https://malprob.io/report/0bbf7cea6fb9f574c657e389e1e5d96925cae471aa9c31485caaecd22aaa91c7
Gathering data
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/0bbf7cea6fb9f574c657e389e1e5d96925cae471aa9c31485caaecd22aaa91c7/
Verdict:
Malicious
Threat:
Family.FORMBOOK
Link:
https://tip.neiki.dev/file/0bbf7cea6fb9f574c657e389e1e5d96925cae471aa9c31485caaecd22aaa91c7
Threat name:
Script-JS.Trojan.Leonem
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Status:
Malicious
First seen:
2026-03-11 08:11:07 UTC
File Type:
Text (JavaScript)
AV detection:
11 of 38 (28.95%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=bo7xz2tpxh2xjrsx4oe6dzoznes4vzdrvkodcsc4vlwnekvkshdq._file
Verdict:
malicious
Label(s):
fantomcrypt
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Similar samples:
error
Formbook
Result
Malware family:
formbook
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Score:
  10/10
Tags:
family:formbook discovery execution persistence rat spyware stealer trojan
Link:
https://tria.ge/reports/260312-vswapaaz5r/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Command and Scripting Interpreter: JavaScript
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Adds Run key to start application
Drops startup file
Command and Scripting Interpreter: PowerShell
Formbook payload
Formbook
Formbook 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/0bbf7cea6fb9f574c657e389e1e5d96925cae471aa9c31485caaecd22aaa91c7

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:Base64_Encoded_Powershell_Directives
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Rule name:CP_Script_Inject_Detector
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Author:DiegoAnalytics
Description:Detects attempts to inject code into another process across PE, ELF, Mach-O binaries
Rule name:DebuggerCheck__GlobalFlags
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Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerCheck__QueryInfo
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Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerHiding__Active
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Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerHiding__Thread
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Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DetectEncryptedVariants
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Author:Zinyth
Description:Detects 'encrypted' in ASCII, Unicode, base64, or hex-encoded
Rule name:dgaagas
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Author:Harshit
Description:Uses certutil.exe to download a file named test.txt
Rule name:golang_bin_JCorn_CSC846
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Author:Justin Cornwell
Description:CSC-846 Golang detection ruleset
Rule name:MD5_Constants
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Author:phoul (@phoul)
Description:Look for MD5 constants
Rule name:pe_no_import_table
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Description:Detect pe file that no import table
Rule name:RIPEMD160_Constants
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Author:phoul (@phoul)
Description:Look for RIPEMD-160 constants
Rule name:SEH__vectored
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Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:SHA1_Constants
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Author:phoul (@phoul)
Description:Look for SHA1 constants
Rule name:shellcode
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Author:nex
Description:Matched shellcode byte patterns
Rule name:TH_Win_ETW_Bypass_2025_CYFARE
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Author:CYFARE
Description:Windows ETW Bypass Detection Rule - 2025
Reference:https://cyfare.net/
Rule name:vmdetect
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Author:nex
Description:Possibly employs anti-virtualization techniques

File information

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

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