MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 830a00982e0ac172e30db14e1c603fa39e1ff76ef64f61ee7b1eb2bcc8ecbfb5. 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: 7


Intelligence 7 IOCs YARA 17 File information Comments
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SHA256 hash: 830a00982e0ac172e30db14e1c603fa39e1ff76ef64f61ee7b1eb2bcc8ecbfb5
SHA3-384 hash: ec7e2dac733c91c48a2acfce4dc94ad462db07747276d006e74dbd9723641ba826084ef78c869269c70d515c083a2963
SHA1 hash: 1e79bb801c138f6e521c147dd789860ec548f427
MD5 hash: dbb85abacaf2569f06546fa9bf8dd90b
humanhash: massachusetts-washington-cup-finch
File name:Inquiry For An Urgent Supply.pdf.tar
Download: download sample
Signature Formbook
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File size:713'819 bytes
First seen:2025-09-19 09:34:03 UTC
Last seen:2025-09-19 09:35:30 UTC
File type: tar
MIME type:application/x-rar
ssdeep 12288:SszhAbj2w9JFjqCsfeSjfj8UBO3AW1ukBsg+JwGfOQnhIdbs2AAi6kVxQLw4pJ:S2hE938zbj8N3zZBsVJwGfDQbsxAi6ke
TLSH T112E42372752382FBB985A71ED23675A831DFA314693968F8ACCFCC93477C26065AC14C
TrID 61.5% (.RAR) RAR compressed archive (v5.0) (8000/1)
38.4% (.RAR) RAR compressed archive (gen) (5000/1)
Magika rar
Reporter cocaman
Tags:FormBook tar


Avatar
cocaman
Malicious email (T1566.001)
From: "procurement@pfizer-belgium.com" (likely spoofed)
Received: "from pfizer-belgium.com (unknown [192.3.198.19]) "
Date: "19 Sep 2025 09:46:54 +0200"
Subject: "FW: Inquiry For An Urgent Supply"
Attachment: "Inquiry For An Urgent Supply.pdf.tar"

Intelligence

File Origin
# of uploads :
3
# of downloads :
55
Origin country :
CH CH
File Archive Information

This file archive contains 1 file(s), sorted by their relevance:

File name:Inquiry For An Urgent Supply.pdf.exe
File size:801'280 bytes
SHA256 hash: e5736df87221b67a2e2a614374e1d6353043b95e08448ea9260e103ab18a5c8d
MD5 hash: 45595de94c06c3d7914383a1b0416ef0
MIME type:application/x-dosexec
Signature Formbook
Vendor Threat Intelligence
Detection(s):
Sanesecurity.Malware.28929.RarHeur.UNOFFICIAL
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Verdict:
Clean
Score:
89.3%
Link:
https://cyber-fortress.com/docs/result/index.php?id=68cd0c98246a2631bd30fe35
Tags:
n/a
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
anti-vm fingerprint masquerade packed reconnaissance
Link:
https://www.filescan.io/uploads/68cd23dc254431b688d4de55/reports/a8fa4295-e927-451f-a216-3d017df8b6a8/overview
Verdict:
Malicious
Labled as:
Trojan.Generic
Link:
https://www.hybrid-analysis.com/sample/830a00982e0ac172e30db14e1c603fa39e1ff76ef64f61ee7b1eb2bcc8ecbfb5
Verdict:
Malicious
File Type:
rar
First seen:
2025-09-19T11:06:00Z UTC
Last seen:
2025-09-19T11:06:00Z UTC
Hits:
~10
Detections:
VHO:Trojan-Banker.Win32.Convagent.gen Trojan-Spy.Noon.HTTP.ServerRequest PDM:Trojan.Win32.Generic HEUR:Backdoor.MSIL.XWorm.gen Backdoor.Agent.HTTP.C&C Trojan.MSIL.Inject.sb Trojan-Spy.Win32.Noon.sb Trojan-PSW.Win32.Stealer.sb Trojan.MSIL.Taskun.sb Trojan.MSIL.Crypt.sb
Link:
https://opentip.kaspersky.com/830a00982e0ac172e30db14e1c603fa39e1ff76ef64f61ee7b1eb2bcc8ecbfb5/results?tab=lookup
Verdict:
inconclusive
YARA:
1 match(es)
Tags:
.Net Executable Managed .NET PDB Path PE (Portable Executable) PE File Layout Rar Archive SOS: 0.42
Link:
https://app.malva.re/file/dbb85abacaf2569f06546fa9bf8dd90b
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/830a00982e0ac172e30db14e1c603fa39e1ff76ef64f61ee7b1eb2bcc8ecbfb5/
Verdict:
Clean
Link:
https://tip.neiki.dev/file/830a00982e0ac172e30db14e1c603fa39e1ff76ef64f61ee7b1eb2bcc8ecbfb5
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
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Status:
Malicious
First seen:
2025-09-19 09:34:06 UTC
File Type:
Binary (Archive)
Extracted files:
10
AV detection:
18 of 24 (75.00%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=qmfabgboblaxfyynwfhbyyb7uopb753o6zhwd3t3d2zlzshmx62q._file
Result
Malware family:
formbook
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Score:
  10/10
Tags:
family:formbook discovery rat spyware stealer trojan
Link:
https://tria.ge/reports/250919-m1xjqahp81/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Formbook payload
Formbook
Formbook family
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Legit
Score:
0.00
Link:
https://yomi.yoroi.company/submissions/830a00982e0ac172e30db14e1c603fa39e1ff76ef64f61ee7b1eb2bcc8ecbfb5

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_AllMal_Detector
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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:Formbook
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Author:kevoreilly
Description:Formbook Payload
Rule name:meth_stackstrings
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Author:Willi Ballenthin
Rule name:NET
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Author:malware-lu
Rule name:NETexecutableMicrosoft
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Author:malware-lu
Rule name:pe_imphash
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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: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:Skystars_Malware_Imphash
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Author:Skystars LightDefender
Description:imphash
Rule name:SUSP_RAR_with_PDF_Script_Obfuscation
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Author:Florian Roth (Nextron Systems)
Description:Detects RAR file with suspicious .pdf extension prefix to trick users
Reference:Internal Research
Rule name:SUSP_RAR_with_PDF_Script_Obfuscation_RID34A4
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Author:Florian Roth
Description:Detects RAR file with suspicious .pdf extension prefix to trick users
Reference:Internal Research
Rule name:win32_dotnet_form_obfuscate
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Author:Reedus0
Description:Rule for detecting .NET form obfuscate malware
Rule name:win_formbook_g0
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Author:Slavo Greminger, SWITCH-CERT

File information

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

Malspam

Formbook

tar 830a00982e0ac172e30db14e1c603fa39e1ff76ef64f61ee7b1eb2bcc8ecbfb5

(this sample)

Formbook

Executable exe e5736df87221b67a2e2a614374e1d6353043b95e08448ea9260e103ab18a5c8d

  
Delivery method
Distributed via e-mail attachment
  
Dropping
SHA256 e5736df87221b67a2e2a614374e1d6353043b95e08448ea9260e103ab18a5c8d
  
Dropping
Formbook
  
Dropping
MD5 45595de94c06c3d7914383a1b0416ef0

Comments