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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 e78d873a275cb56ace7042e6bb1c734d84545a08baf4f789712fba37280267e3. 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: 10


Intelligence 10 IOCs YARA File information Comments

SHA256 hash: e78d873a275cb56ace7042e6bb1c734d84545a08baf4f789712fba37280267e3
SHA3-384 hash: 9af192654bfc4c3b907cb6fcda899a29bb1d1c3909bdfcb12b1b22fbe00c3b42bd644b4bef911984f60e651db9c3185d
SHA1 hash: e3678a0bff956cab30061b02f8760608ebccb5b7
MD5 hash: 16c1fd7f1586fd61c657e51d34102bca
humanhash: kitten-march-potato-louisiana
File name:MV CHRYSANTHI S_VESSEL_DESCRIPTION.js
Download: download sample
Signature Formbook
File size:3'044'815 bytes
First seen:2026-09-14 00:17:41 UTC
Last seen:Never
File type:Java Script (JS) js
MIME type:text/plain
ssdeep 12288:9jx5kAYypUmxi4Zf0yrkGRgA5BBbf96/AOWcfjJ55ziokUG:f5kAYypUmxi4Zf0yrkQ
TLSH T155E52BB373C7B94DA89523ECEDCC15081B4FD4194F9235E4A0EB0BC45A4BD5A1AA4CAF
Magika javascript
Reporter threatcat_ch
Tags:FormBook js

Intelligence


File Origin
# of uploads :
1
# of downloads :
169
Origin country :
CH CH
Vendor Threat Intelligence
No detections
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
anti-vm aspnet_compiler base64 cscript encrypted evasive evasive fingerprint lolbin obfuscated obfuscated powershell reconnaissance repaired taskkill wscript
Verdict:
Malicious
File Type:
js
First seen:
2026-09-13T20:45:00Z UTC
Last seen:
2026-09-15T22:34:00Z UTC
Hits:
~1000
Result
Threat name:
FormBook
Detection:
malicious
Classification:
troj.spyw.expl.evad
Score:
100 / 100
Signature
AI detected malicious Powershell script
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
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
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:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1972429 Sample: MV CHRYSANTHI S_VESSEL_DESC... Startdate: 14/09/2026 Architecture: WINDOWS Score: 100 47 www.quoka.de 2->47 49 www.pathwayvertex.com 2->49 51 8 other IPs or domains 2->51 65 Malicious sample detected (through community Yara rule) 2->65 67 Multi AV Scanner detection for submitted file 2->67 69 Yara detected FormBook 2->69 71 6 other signatures 2->71 11 wscript.exe 3 2->11         started        15 svchost.exe 1 1 2->15         started        signatures3 process4 dnsIp5 45 C:\Temp\ps_lQBuffAxbNfN_1789345368122.ps1, ASCII 11->45 dropped 93 Suspicious powershell command line found 11->93 95 Wscript starts Powershell (via cmd or directly) 11->95 97 Bypasses PowerShell execution policy 11->97 99 3 other signatures 11->99 18 powershell.exe 16 11->18         started        59 127.0.0.1 unknown unknown 15->59 file6 signatures7 process8 signatures9 61 Writes to foreign memory regions 18->61 63 Injects a PE file into a foreign processes 18->63 21 aspnet_compiler.exe 18->21         started        24 aspnet_compiler.exe 18->24         started        26 aspnet_compiler.exe 18->26         started        28 22 other processes 18->28 process10 signatures11 81 Modifies the context of a thread in another process (thread injection) 21->81 83 Maps a DLL or memory area into another process 21->83 85 Queues an APC in another process (thread injection) 21->85 30 HcT2xsYBjA.exe 21->30 injected 87 Found direct / indirect Syscall (likely to bypass EDR) 24->87 33 orkz8HQv0.exe 24->33 injected 89 Unusual module load detection (module proxying) 26->89 91 Switches to a custom stack to bypass stack traces 26->91 process12 signatures13 101 Maps a DLL or memory area into another process 30->101 103 Found direct / indirect Syscall (likely to bypass EDR) 30->103 35 gpresult.exe 13 30->35         started        38 gpresult.exe 33->38         started        process14 signatures15 73 Tries to steal Mail credentials (via file / registry access) 35->73 75 Tries to harvest and steal browser information (history, passwords, etc) 35->75 77 Modifies the context of a thread in another process (thread injection) 35->77 79 3 other signatures 35->79 40 3NlFqvMc0P.exe 35->40 injected 43 firefox.exe 35->43         started        process16 dnsIp17 53 www.kelifa.info 104.207.88.121, 49713, 49714, 49715 NAMECHEAP-NET-NamecheapIncUS United States 40->53 55 parking.d.parity.domains 104.219.250.36, 49721, 49722, 49723 NAMECHEAP-NET-NamecheapIncUS United States 40->55 57 4 other IPs or domains 40->57
Gathering data
Threat name:
Win32.Packed.Generic
Status:
Suspicious
First seen:
2026-09-13 23:51:31 UTC
File Type:
Text (JavaScript)
AV detection:
12 of 24 (50.00%)
Threat level:
  1/5
Result
Malware family:
formbook
Score:
  10/10
Tags:
family:formbook adware collection defense_evasion discovery execution rat spyware stealer trojan
Behaviour
Kills process with taskkill
Modifies Internet Explorer settings
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
outlook_office_path
Command and Scripting Interpreter: JavaScript
Enumerates physical storage devices
System Location Discovery: System Language Discovery
ConfuserEx .NET packer
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.

File information


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

Malspam

Formbook

Java Script (JS) js e78d873a275cb56ace7042e6bb1c734d84545a08baf4f789712fba37280267e3

(this sample)

  
Delivery method
Distributed via e-mail attachment

Comments