MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 abc25960c92c881ef69a94a3d8a96faacfdf0619327332509227c3cadc5f13b0. 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 6 File information Comments
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SHA256 hash: abc25960c92c881ef69a94a3d8a96faacfdf0619327332509227c3cadc5f13b0
SHA3-384 hash: e0ada668a9c5c9261565adeb91d2a150affd87481305548a7437ef07d821628d0ff623f6240ff0cef6e523aa1c4423cf
SHA1 hash: 7b80637454049dc07f57382e05197bf7f4070cf7
MD5 hash: 01ca580780972c3054de5734a9dc6b32
humanhash: cat-violet-connecticut-nineteen
File name:Žádost o cenovou nabídku PUC251002·pdf.js
Download: download sample
Signature Formbook
Create hunting rule
File size:801'389 bytes
First seen:2025-10-03 09:06:13 UTC
Last seen:Never
File type:Java Script (JS) js
MIME type:text/plain
ssdeep 24576:c373Lr12NTK/yN6jPHyKC5aqq9g0T+AM0hw5MDSJrldpZ8qdOGPFbuJN0mX:c373Lr12NTK/yN6jPHxC5aqq9TT+ALhD
TLSH T175053970CA2001774F87AB9CBCA90661C6ADD315862745B0F6DD8B0DA10E9ECF3BD667
Magika javascript
Reporter abuse_ch
Tags:FormBook js

Intelligence

File Origin
# of uploads :
1
# of downloads :
88
Origin country :
SE SE
Vendor Threat Intelligence
Verdict:
Malicious
Score:
99.1%
Link:
https://cyber-fortress.com/docs/result/index.php?id=68df9232c21e799f5cd491df
Tags:
virus spawn agent
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
fingerprint
Link:
https://www.filescan.io/uploads/68df9338c564c8e81d0d369b/reports/c42b16b2-0c08-4164-8f06-9dbeb5b2c5f9/overview
Verdict:
Malicious
Labled as:
JS/Kryptik.CXL trojan
Link:
https://www.hybrid-analysis.com/sample/abc25960c92c881ef69a94a3d8a96faacfdf0619327332509227c3cadc5f13b0
Verdict:
Malicious
File Type:
text
First seen:
2025-10-02T07:10:00Z UTC
Last seen:
2025-10-05T00:53:00Z UTC
Hits:
~100
Link:
https://opentip.kaspersky.com/abc25960c92c881ef69a94a3d8a96faacfdf0619327332509227c3cadc5f13b0/results?tab=lookup
Result
Threat name:
FormBook, GuLoader
Create hunting rule
Detection:
malicious
Classification:
troj.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1788642
Signature
Creates processes via WMI
Early bird code injection technique detected
Found suspicious powershell code related to unpacking or dynamic code loading
JavaScript file contains Antivirus product strings
JavaScript source code contains functionality to generate code involving a shell, file or stream
Loading BitLocker PowerShell Module
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
Multi AV Scanner detection for submitted file
Queries sensitive service information (via WMI, Win32_LogicalDisk, often done to detect sandboxes)
Queues an APC in another process (thread injection)
Sigma detected: WScript or CScript Dropper
Suspicious execution chain found
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 GuLoader
Yara detected Powershell decode and execute
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1788642 Sample: #U017d#U00e1dost o cenovou ... Startdate: 03/10/2025 Architecture: WINDOWS Score: 100 25 drive.usercontent.google.com 2->25 27 drive.google.com 2->27 33 Malicious sample detected (through community Yara rule) 2->33 35 Multi AV Scanner detection for submitted file 2->35 37 Yara detected FormBook 2->37 39 5 other signatures 2->39 8 powershell.exe 31 2->8         started        11 wscript.exe 1 1 2->11         started        signatures3 process4 signatures5 41 Early bird code injection technique detected 8->41 43 Writes to foreign memory regions 8->43 45 Found suspicious powershell code related to unpacking or dynamic code loading 8->45 55 3 other signatures 8->55 13 msiexec.exe 6 8->13         started        16 conhost.exe 8->16         started        47 Wscript starts Powershell (via cmd or directly) 11->47 49 Windows Scripting host queries suspicious COM object (likely to drop second stage) 11->49 51 Suspicious execution chain found 11->51 53 Creates processes via WMI 11->53 18 powershell.exe 14 28 11->18         started        process6 dnsIp7 57 Maps a DLL or memory area into another process 13->57 21 Bv324cah.exe 13->21 injected 29 drive.google.com 142.250.217.238, 443, 49687, 49693 GOOGLEUS United States 18->29 31 drive.usercontent.google.com 172.217.165.193, 443, 49688, 49694 GOOGLEUS United States 18->31 59 Found suspicious powershell code related to unpacking or dynamic code loading 18->59 61 Queries sensitive service information (via WMI, Win32_LogicalDisk, often done to detect sandboxes) 18->61 63 Loading BitLocker PowerShell Module 18->63 23 conhost.exe 18->23         started        signatures8 process9
Score:
72%
Verdict:
Malware
File Type:
SCRIPT
Link:
https://malprob.io/report/abc25960c92c881ef69a94a3d8a96faacfdf0619327332509227c3cadc5f13b0
Gathering data
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/abc25960c92c881ef69a94a3d8a96faacfdf0619327332509227c3cadc5f13b0/
Verdict:
Malicious
Threat:
Family.FORMBOOK
Link:
https://tip.neiki.dev/file/abc25960c92c881ef69a94a3d8a96faacfdf0619327332509227c3cadc5f13b0
Threat name:
Script-JS.Trojan.GuLoader
Create hunting rule
Status:
Malicious
First seen:
2025-10-02 14:39:57 UTC
File Type:
Text
AV detection:
8 of 24 (33.33%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=vpbfsygjfseb55u2ssr5rklpvlh56bqzgjzteuese7b4vxc7coya._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
error
Formbook
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook discovery execution rat spyware stealer trojan
Link:
https://tria.ge/reports/251003-k5qwmaap6z/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Command and Scripting Interpreter: JavaScript
System Location Discovery: System Language Discovery
Suspicious use of NtCreateThreadExHideFromDebugger
Suspicious use of NtSetInformationThreadHideFromDebugger
Legitimate hosting services abused for malware hosting/C2
Badlisted process makes network request
Formbook payload
Formbook
Formbook family
Process spawned unexpected child process
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/abc25960c92c881ef69a94a3d8a96faacfdf0619327332509227c3cadc5f13b0

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:Cerberus
Create hunting rule
Author:Jean-Philippe Teissier / @Jipe_
Description:Cerberus
Rule name:CP_AllMal_Detector
Create hunting rule
Author:DiegoAnalytics
Description:CrossPlatform All Malwares Detector: Detect PE, ELF, Mach-O, scripts, archives; overlay, obfuscation, encryption, spoofing, hiding, high entropy, network communication
Rule name:CP_Script_Inject_Detector
Create hunting rule
Author:DiegoAnalytics
Description:Detects attempts to inject code into another process across PE, ELF, Mach-O binaries
Rule name:dependsonpythonailib
Create hunting rule
Author:Tim Brown
Description:Hunts for dependencies on Python AI libraries
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)
Rule name:test_Malaysia
Create hunting rule
Author:rectifyq
Description:Detects file containing malaysia string

File information

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

Comments