MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 aa42661229c9cff9f0dadf07c4d4a0ef58b44446ff7838e80ed99dcd683e074f. 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: 12


Intelligence 12 IOCs YARA 18 File information Comments
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SHA256 hash: aa42661229c9cff9f0dadf07c4d4a0ef58b44446ff7838e80ed99dcd683e074f
SHA3-384 hash: b7ba97bfd349fe82fc91afe07c7bcb3adf312963066460389a6a07627cac2fa57566c628a89e52620d7a43f490ad599d
SHA1 hash: 4b8eade1c0d23c1db0b32b878983af393f2b46df
MD5 hash: bb086bc87a91608789a2104b5c67fedf
humanhash: florida-pasta-river-network
File name:Offer Quote #2026-025.js
Download: download sample
Signature Formbook
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File size:2'121'921 bytes
First seen:2026-04-17 14:00:30 UTC
Last seen:Never
File type:Java Script (JS) js
MIME type:text/plain
ssdeep 24576:Tf86Og5uViQPysE6qnUMFKuGa+uwZx9vfcrn9tHH3oD0kgv9SNgYqdb:NGVab6UBKE2bvfcr95u43pF
TLSH T136A5025046C43FACCFEC561980FE160EA3E04E8A9415B989FB73FE4ABFA7A045117199
Magika javascript
Reporter abuse_ch
Tags:FormBook js

Intelligence

File Origin
# of uploads :
1
# of downloads :
124
Origin country :
SE SE
Vendor Threat Intelligence
No detections
Detection(s):
SecuriteInfo.com.JS.Muldrop.1170.12367.23197.UNOFFICIAL
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Verdict:
Malicious
Score:
92.5%
Link:
https://cyber-fortress.com/docs/result/index.php?id=69e23dabf68adfe1003ac421
Tags:
infosteal vmdetect rapid
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
anti-vm encrypted obfuscated repaired
Link:
https://www.filescan.io/uploads/69e23d74799d5bf32504c4ee/reports/2691917c-5997-422a-80ab-9d92b33e66b7/overview
Verdict:
Malicious
Labled as:
Trojan.Cryxos.JS
Link:
https://www.hybrid-analysis.com/sample/aa42661229c9cff9f0dadf07c4d4a0ef58b44446ff7838e80ed99dcd683e074f
Verdict:
Malicious
File Type:
js
First seen:
2026-04-16T22:39:00Z UTC
Last seen:
2026-04-19T12:44:00Z UTC
Hits:
~1000
Detections:
Trojan.PowerShell.Cobalt.sb HEUR:Trojan.Script.Generic HEUR:Trojan-Downloader.Script.Generic Trojan.JS.SAgent.sb Trojan-Spy.Win32.Noon.sb Trojan-PSW.Win32.Stealer.sb Trojan-Downloader.JS.SLoad.sb HEUR:Trojan-Dropper.Script.Generic Trojan.Win32.Agent.sb
Link:
https://opentip.kaspersky.com/aa42661229c9cff9f0dadf07c4d4a0ef58b44446ff7838e80ed99dcd683e074f/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/1900142
Signature
AI detected malicious Powershell script
Bypasses PowerShell execution policy
Injects a PE file into a foreign processes
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: 1900142 Sample: Offer Quote #2026-025.js Startdate: 17/04/2026 Architecture: WINDOWS Score: 100 49 www.stealthsuite.ru 2->49 51 www.hamveera.com 2->51 53 hamveera.com 2->53 67 Suricata IDS alerts for network traffic 2->67 69 Malicious sample detected (through community Yara rule) 2->69 71 Multi AV Scanner detection for submitted file 2->71 73 6 other signatures 2->73 11 wscript.exe 3 2->11         started        15 svchost.exe 1 1 2->15         started        signatures3 process4 dnsIp5 47 C:\Temp\ps_rqnId3pfmqNl_1776440771306.ps1, ASCII 11->47 dropped 87 JScript performs obfuscated calls to suspicious functions 11->87 89 Suspicious powershell command line found 11->89 91 Wscript starts Powershell (via cmd or directly) 11->91 93 4 other signatures 11->93 18 powershell.exe 16 11->18         started        21 taskkill.exe 1 11->21         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 23 aspnet_compiler.exe 18->23         started        26 aspnet_compiler.exe 18->26         started        28 conhost.exe 18->28         started        32 14 other processes 18->32 30 conhost.exe 21->30         started        process10 signatures11 83 Maps a DLL or memory area into another process 23->83 34 vU1Galt6lFOr.exe 23->34 injected 85 Unusual module load detection (module proxying) 26->85 process12 signatures13 65 Maps a DLL or memory area into another process 34->65 37 upnpcont.exe 13 34->37         started        process14 signatures15 75 Tries to steal Mail credentials (via file / registry access) 37->75 77 Tries to harvest and steal browser information (history, passwords, etc) 37->77 79 Modifies the context of a thread in another process (thread injection) 37->79 81 4 other signatures 37->81 40 IiPjnhz6z1yyo2.exe 37->40 injected 43 chrome.exe 37->43         started        45 firefox.exe 37->45         started        process16 dnsIp17 55 www.stealthsuite.ru 95.163.244.138, 49710, 80 IT7NETCA Russian Federation 40->55 57 hamveera.com 173.208.157.35, 80 WIIUS United States 40->57
Score:
100%
Verdict:
Malware
File Type:
SCRIPT
Link:
https://malprob.io/report/aa42661229c9cff9f0dadf07c4d4a0ef58b44446ff7838e80ed99dcd683e074f
Gathering data
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/aa42661229c9cff9f0dadf07c4d4a0ef58b44446ff7838e80ed99dcd683e074f/
Verdict:
Malicious
Threat:
Family.FORMBOOK
Link:
https://tip.neiki.dev/file/aa42661229c9cff9f0dadf07c4d4a0ef58b44446ff7838e80ed99dcd683e074f
Threat name:
Script-JS.Trojan.Egairtigado
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Status:
Malicious
First seen:
2026-04-17 11:55:39 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=vjbgmerjzhh7t4g234d4jvfa55mlircg754dr2ao3go422b6a5hq._file
Result
Malware family:
formbook
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Score:
  10/10
Tags:
family:formbook defense_evasion discovery execution rat spyware stealer trojan
Link:
https://tria.ge/reports/260417-rcfnhsgv4r/
Behaviour
Kills process with taskkill
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
ConfuserEx .NET packer
Suspicious use of SetThreadContext
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/aa42661229c9cff9f0dadf07c4d4a0ef58b44446ff7838e80ed99dcd683e074f

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
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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:Sus_CMD_Powershell_Usage
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Author:XiAnzheng
Description:May Contain(Obfuscated or no) Powershell or CMD Command that can be abused by threat actor(can create FP)
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