MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 55b9b8d561e6c1a4c099ceb064a97a43bdc222797f732562a1f7afef5d6cfbdb. 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 18 File information Comments
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SHA256 hash: 55b9b8d561e6c1a4c099ceb064a97a43bdc222797f732562a1f7afef5d6cfbdb
SHA3-384 hash: 6115ee26adc70ceb798dfafe3b9dea0c9a456b6ed9023e2ebf42bd7642bcf4506118af890a9738d0fd00c3be7e243dbe
SHA1 hash: 406ea177a07898067ad08b8c65bbd24cc4da8fb3
MD5 hash: 977fb32fa4a15d7f5de7f4b016ddc40d
humanhash: india-stairway-kansas-april
File name:shipping documents.js
Download: download sample
Signature Formbook
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File size:2'132'346 bytes
First seen:2026-07-14 10:10:07 UTC
Last seen:Never
File type:Java Script (JS) js
MIME type:text/plain
ssdeep 24576:ugbo0XJDm8fzc+/m7xfrDniQcoGdgaEUxZcV+UeEd19m7o69WMnzacZjy9SErxhc:ugU0ZDU0iPzjAEyFJ87tgSm
TLSH T1B9A5F1105F882FAE87AD0A19D07E1A1EF3E14A851467BCCAEF737D096FAB70055171B8
Magika javascript
Reporter abuse_ch
Tags:FormBook js

Intelligence

File Origin
# of uploads :
1
# of downloads :
135
Origin country :
SE SE
Vendor Threat Intelligence
No detections
Detection(s):
Sanesecurity.Malware.32567.UNOFFICIAL
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Verdict:
Malicious
Score:
97.4%
Link:
https://cyber-fortress.com/docs/result/index.php?id=6a560b62b3055706bb553221
Tags:
loveletter vmdetect
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
anti-vm anti-vm aspnet_compiler base64 base64 encrypted evasive evasive fingerprint lolbin masquerade obfuscated obfuscated powershell reconnaissance repaired zero-day
Link:
https://www.filescan.io/uploads/6a560b3630467016d7601c26/reports/bc71299d-4e82-47c6-8bf1-a197e6725202/overview
Verdict:
Suspicious
Labled as:
JS/Packed.Agent
Link:
https://www.hybrid-analysis.com/sample/55b9b8d561e6c1a4c099ceb064a97a43bdc222797f732562a1f7afef5d6cfbdb
Verdict:
Malicious
File Type:
js
First seen:
2026-07-13T23:03:00Z UTC
Last seen:
2026-07-16T07:08:00Z UTC
Hits:
~1000
Link:
https://opentip.kaspersky.com/55b9b8d561e6c1a4c099ceb064a97a43bdc222797f732562a1f7afef5d6cfbdb/results?tab=lookup
Result
Threat name:
FormBook
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Detection:
malicious
Classification:
troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1942112
Signature
Antivirus / Scanner detection for submitted sample
Binary is likely a compiled AutoIt script file
Bypasses PowerShell execution policy
Found direct / indirect Syscall (likely to bypass EDR)
Injects a PE file into a foreign processes
JavaScript file contains suspicious strings
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: 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)
Unusual module load detection (module proxying)
Windows Scripting host queries suspicious COM object (likely to drop second stage)
Writes to foreign memory regions
WScript reads language and country specific registry keys (likely country aware script)
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: 1942112 Sample: shipping documents.js Startdate: 14/07/2026 Architecture: WINDOWS Score: 100 44 www.sdkxx.cn 2->44 46 www.entertainment-factory.com 2->46 48 3 other IPs or domains 2->48 64 Suricata IDS alerts for network traffic 2->64 66 Malicious sample detected (through community Yara rule) 2->66 68 Antivirus / Scanner detection for submitted sample 2->68 70 7 other signatures 2->70 11 wscript.exe 3 2->11         started        signatures3 process4 signatures5 86 JScript performs obfuscated calls to suspicious functions 11->86 88 Suspicious powershell command line found 11->88 90 Wscript starts Powershell (via cmd or directly) 11->90 92 4 other signatures 11->92 14 powershell.exe 16 11->14         started        17 taskkill.exe 1 11->17         started        process6 signatures7 94 Writes to foreign memory regions 14->94 96 Injects a PE file into a foreign processes 14->96 19 aspnet_compiler.exe 14->19         started        22 aspnet_compiler.exe 14->22         started        24 conhost.exe 14->24         started        28 22 other processes 14->28 26 conhost.exe 17->26         started        process8 signatures9 72 Modifies the context of a thread in another process (thread injection) 19->72 74 Maps a DLL or memory area into another process 19->74 76 Queues an APC in another process (thread injection) 19->76 78 Found direct / indirect Syscall (likely to bypass EDR) 19->78 30 edu68zYT3P6.exe 19->30 injected 80 Unusual module load detection (module proxying) 22->80 82 Switches to a custom stack to bypass stack traces 22->82 process10 signatures11 98 Binary is likely a compiled AutoIt script file 30->98 100 Maps a DLL or memory area into another process 30->100 102 Found direct / indirect Syscall (likely to bypass EDR) 30->102 33 attrib.exe 13 30->33         started        process12 signatures13 56 Tries to steal Mail credentials (via file / registry access) 33->56 58 Tries to harvest and steal browser information (history, passwords, etc) 33->58 60 Modifies the context of a thread in another process (thread injection) 33->60 62 3 other signatures 33->62 36 CWUHuqUw0vPC.exe 33->36 injected 40 firefox.exe 33->40         started        42 chrome.exe 33->42         started        process14 dnsIp15 50 www.sdkxx.cn 108.186.18.53, 49712, 49713, 49714 PEG-SV-PEGTECHINCUS China 36->50 52 www.entertainment-factory.com 157.90.33.73, 49702, 49706, 49708 HETZNER-ASDE Germany 36->52 54 2 other IPs or domains 36->54 84 Binary is likely a compiled AutoIt script file 36->84 signatures16
Score:
99%
Verdict:
Malware
File Type:
SCRIPT
Link:
https://malprob.io/report/55b9b8d561e6c1a4c099ceb064a97a43bdc222797f732562a1f7afef5d6cfbdb
Gathering data
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/55b9b8d561e6c1a4c099ceb064a97a43bdc222797f732562a1f7afef5d6cfbdb/
Threat name:
Script-JS.Backdoor.FormBook
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Status:
Malicious
First seen:
2026-07-14 01:50:15 UTC
File Type:
Text (JavaScript)
AV detection:
10 of 24 (41.67%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=kw43rvlb43a2jqezz2ygjkl2io64eitzp5zskyvb66x66xlm7pnq._file
Result
Malware family:
formbook
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Score:
  10/10
Tags:
family:formbook adware collection defense_evasion discovery execution rat spyware stealer trojan
Link:
https://tria.ge/reports/260714-l7zrzsax2p/
Behaviour
Kills process with taskkill
Modifies Internet Explorer settings
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Views/modifies file attributes
outlook_office_path
Command and Scripting Interpreter: JavaScript
Enumerates physical storage devices
System Location Discovery: System Language Discovery
System Network Configuration Discovery: Internet Connection Discovery
Suspicious use of SetThreadContext
Accesses Microsoft Outlook profiles
Checks computer location settings
Badlisted process makes network request
Command and Scripting Interpreter: PowerShell
Family: Formbook
Formbook payload
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/55b9b8d561e6c1a4c099ceb064a97a43bdc222797f732562a1f7afef5d6cfbdb

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:telebot_framework
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Author:vietdx.mb
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.

Comments