MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 d91d2ac9fd07419f0c502f17e30adc89507a78118aceff3e756aa52ebcd1397a. 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: 9


Intelligence 9 IOCs YARA 22 File information Comments
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SHA256 hash: d91d2ac9fd07419f0c502f17e30adc89507a78118aceff3e756aa52ebcd1397a
SHA3-384 hash: 0423ed5216e78fb0e183ae9320f6886870b8e1312096cdbb9368604914a87d4ad123f1d079429d6ca62568d74face7d9
SHA1 hash: 804b9b5b3c9956a1c4bbd07865b5351eb6421318
MD5 hash: 1f769d8350f73e0cfde699c63b9de76b
humanhash: alaska-table-single-robert
File name:Purchase Order 4902134.js
Download: download sample
Signature Formbook
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File size:3'159'883 bytes
First seen:2026-07-23 12:16:55 UTC
Last seen:Never
File type:Java Script (JS) js
MIME type:text/plain
ssdeep 49152:pRUACWfymeznOpaoembVOz8uy6tcwbV8Tq+BsWBLMYH5zBh6KMrnxQwNRN8TYUnb:V
TLSH T124E5E8F33AAE7009266D3B9DD89D2C4C6B0F55B45ED27AE0C4DB2DD1504F84E1680BAE
Magika javascript
Reporter James_inthe_box
Tags:exe FormBook js

Intelligence

File Origin
# of uploads :
1
# of downloads :
205
Origin country :
US US
Vendor Threat Intelligence
No detections
Detection(s):
Sanesecurity.Malware.32641.UNOFFICIAL
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Sanesecurity.Malware.32567.UNOFFICIAL
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Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
agenttesla anti-vm aspnet_compiler base64 base64 downloader encrypted evasive evasive fingerprint lolbin masquerade obfuscated obfuscated powershell reconnaissance repaired
Link:
https://www.filescan.io/uploads/6a620659be5fa5bfa9312891/reports/aafc4547-1678-499d-a0be-c25d7e33b679/overview
Verdict:
Malicious
Labled as:
GT:JS.AgentTesla.666
Link:
https://www.hybrid-analysis.com/sample/d91d2ac9fd07419f0c502f17e30adc89507a78118aceff3e756aa52ebcd1397a
Verdict:
Malicious
File Type:
js
First seen:
2026-07-20T21:22:00Z UTC
Last seen:
2026-07-25T09:53:00Z UTC
Hits:
~1000
Link:
https://opentip.kaspersky.com/d91d2ac9fd07419f0c502f17e30adc89507a78118aceff3e756aa52ebcd1397a/results?tab=lookup
Score:
100%
Verdict:
Malware
File Type:
SCRIPT
Link:
https://malprob.io/report/d91d2ac9fd07419f0c502f17e30adc89507a78118aceff3e756aa52ebcd1397a
Gathering data
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/d91d2ac9fd07419f0c502f17e30adc89507a78118aceff3e756aa52ebcd1397a/
Threat name:
Script-JS.Trojan.AgentTesla
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Status:
Malicious
First seen:
2026-07-21 00:45:43 UTC
File Type:
Text (JavaScript)
AV detection:
14 of 36 (38.89%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=3eosvsp5a5az6dcqf4l6gcw4rfihu6arrlhp6ptvnkss5pgrhf5a._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/260723-pf91esag75/
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
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
Malware family:
FormBook
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Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/d91d2ac9fd07/report/overview.html
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: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:TH_Win_ETW_Bypass_2025_CYFARE
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Author:CYFARE
Description:Windows ETW Bypass Detection Rule - 2025
Reference:https://cyfare.net/

File information

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

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