MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 d26dc74cf790d8b80f03ee0d94eb11cea8074bcbe70a2f97952f4945f180448f. 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: 6


Intelligence 6 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: d26dc74cf790d8b80f03ee0d94eb11cea8074bcbe70a2f97952f4945f180448f
SHA3-384 hash: a4b427bdc0ce2f023ece789bc4af2f9a6c6eebc036b8ea4fa650beed07862dd817b961ed1950f91476fea8c14ffe304d
SHA1 hash: b3dd9abab094028aacbb3c0bb21ce62c0a6faabc
MD5 hash: bc9e77821661c80199a81661b127979a
humanhash: diet-freddie-lion-aspen
File name:103_FTX26222VADLV_4416371107.js
Download: download sample
Signature Formbook
Create hunting rule
File size:981'008 bytes
First seen:2026-08-12 08:03:22 UTC
Last seen:Never
File type:Java Script (JS) js
MIME type:text/plain
ssdeep 12288:qhHIvFbvKe64l8nbbbXn7e8s+fs9X3r1LjF4al45NvPQOLmmik4GveamUJ:WI3pknjS9L1NJl4nMk4VJ4
TLSH T1CA25B0B131568D79C86C48FEA65EB12761DD7E2911409C6FAB32E111FCFA7839CEC068
Magika javascript
Reporter abuse_ch
Tags:FormBook js

Intelligence

File Origin
# of uploads :
1
# of downloads :
119
Origin country :
SE SE
Vendor Threat Intelligence
No detections
Gathering data
Verdict:
Unknown
Threat level:
  2.5/10
Confidence:
100%
Tags:
encrypted obfuscated repaired
Link:
https://www.filescan.io/uploads/6a7c299956f01be6fb369faa/reports/8ae7e6d4-d643-4f95-b153-c369487fd422/overview
Verdict:
Unknown
Link:
https://www.hybrid-analysis.com/sample/d26dc74cf790d8b80f03ee0d94eb11cea8074bcbe70a2f97952f4945f180448f
Verdict:
Malicious
File Type:
js
First seen:
2026-08-12T03:19:00Z UTC
Last seen:
2026-08-12T04:43:00Z UTC
Hits:
~100
Link:
https://opentip.kaspersky.com/d26dc74cf790d8b80f03ee0d94eb11cea8074bcbe70a2f97952f4945f180448f/results?tab=lookup
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
evad.troj.spyw.expl
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1956684
Signature
Antivirus detection for URL or domain
Bypasses PowerShell execution policy
Found direct / indirect Syscall (likely to bypass EDR)
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)
Performs DNS queries to domains with low reputation
Queues an APC in another process (thread injection)
Sigma detected: Dot net compiler compiles file from suspicious location
Sigma detected: Script Interpreter Execution From Suspicious Folder
Sigma detected: Suspicious PowerShell Parameter Substring
Sigma detected: Suspicious Script Execution From Temp Folder
Sigma detected: WScript or CScript Dropper
Sigma detected: WScript or CScript Dropper - File
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)
Windows Shell Script Host drops VBS files
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 AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1956684 Sample: 103_FTX26222VADLV_4416371107.js Startdate: 12/08/2026 Architecture: WINDOWS Score: 100 56 www.squad4game.xyz 2->56 58 www.yishengbee.com 2->58 60 25 other IPs or domains 2->60 74 Suricata IDS alerts for network traffic 2->74 76 Antivirus detection for URL or domain 2->76 78 Yara detected FormBook 2->78 82 9 other signatures 2->82 12 wscript.exe 1 6 2->12         started        signatures3 80 Performs DNS queries to domains with low reputation 56->80 process4 file5 48 C:\Users\user\AppData\...\tmp_86573_a801, ASCII 12->48 dropped 50 C:\Users\user\AppData\...\dat_79488_a801.ps1, C 12->50 dropped 52 C:\Users\user\AppData\...\dat_79077_a92a.vbs, ASCII 12->52 dropped 54 C:\Users\user\AppData\...\cfg_63311_a7f1, ASCII 12->54 dropped 104 JScript performs obfuscated calls to suspicious functions 12->104 106 Suspicious powershell command line found 12->106 108 Wscript starts Powershell (via cmd or directly) 12->108 110 5 other signatures 12->110 16 wscript.exe 1 12->16         started        signatures6 process7 signatures8 68 Suspicious powershell command line found 16->68 70 Wscript starts Powershell (via cmd or directly) 16->70 72 WScript reads language and country specific registry keys (likely country aware script) 16->72 19 powershell.exe 23 16->19         started        process9 file10 44 C:\Users\user\AppData\...\rrfbmmj4.cmdline, Unicode 19->44 dropped 84 Writes to foreign memory regions 19->84 86 Injects a PE file into a foreign processes 19->86 23 MSBuild.exe 19->23         started        26 csc.exe 3 19->26         started        29 conhost.exe 19->29         started        signatures11 process12 file13 96 Modifies the context of a thread in another process (thread injection) 23->96 98 Maps a DLL or memory area into another process 23->98 100 Queues an APC in another process (thread injection) 23->100 102 3 other signatures 23->102 31 I1avpOj1cb5v6.exe 23->31 injected 46 C:\Users\user\AppData\Local\...\rrfbmmj4.dll, PE32 26->46 dropped 34 cvtres.exe 1 26->34         started        signatures14 process15 signatures16 112 Maps a DLL or memory area into another process 31->112 114 Found direct / indirect Syscall (likely to bypass EDR) 31->114 36 sc.exe 13 31->36         started        process17 signatures18 88 Tries to steal Mail credentials (via file / registry access) 36->88 90 Tries to harvest and steal browser information (history, passwords, etc) 36->90 92 Modifies the context of a thread in another process (thread injection) 36->92 94 3 other signatures 36->94 39 iJWcT8BVfOxo94.exe 36->39 injected 42 firefox.exe 36->42         started        process19 dnsIp20 62 ngx-out.op.ganji.com 43.144.202.136, 49891, 49892, 49893 TENCENT-NET-APShenzhenTencentComputerSystemsCompanyLimitedCN China 39->62 64 www.kuntec-alloy.com 43.157.242.193, 49850, 49851, 49852 TENCENT-NET-AP-CNTencentBuildingKejizhongyiAvenueCN Indonesia 39->64 66 13 other IPs or domains 39->66
Score:
49%
Verdict:
Susipicious
File Type:
SCRIPT
Link:
https://malprob.io/report/d26dc74cf790d8b80f03ee0d94eb11cea8074bcbe70a2f97952f4945f180448f
Gathering data
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/d26dc74cf790d8b80f03ee0d94eb11cea8074bcbe70a2f97952f4945f180448f/
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=2jw4othxsdmlqdyd5ygzj2yrz2uaos6l44fc7f4vf5eul4maishq._file
Verdict:
malicious
Label(s):
Formbook
Create hunting rule
Link:
https://reports.threatray.com/f1e47acf-04a9-40b2-9ee7-eb4045a3a399
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook adware collection discovery execution rat spyware stealer trojan
Link:
https://tria.ge/reports/260812-jzc7xacq2w/
Behaviour
Modifies Internet Explorer settings
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
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
Launches sc.exe
Executes a VBScript file via the Windows Script Host.
Suspicious use of SetThreadContext
Accesses Microsoft Outlook profiles
Checks computer location settings
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.

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: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:SUSP_obfuscated_JS_obfuscatorio
Create hunting rule
Author:@imp0rtp3
Description:Detect JS obfuscation done by the js obfuscator (often malicious)
Reference:https://obfuscator.io

File information

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

Comments