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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a7531fabfc28df91bb4440fc6d769ba8007476ffdd7b71ac1f9b893bc05c9f72. 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: 16


Intelligence 16 IOCs YARA 8 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a7531fabfc28df91bb4440fc6d769ba8007476ffdd7b71ac1f9b893bc05c9f72
SHA3-384 hash: 06bc1a2c62a6e40a6fc0252941a7af69cb58c74c782c71eacce1bdf8bd236b39fa869ae8a795d514416f059d03efa5a9
SHA1 hash: 821f322f8ab58f6f3776a7807b99e0657aa0d1fc
MD5 hash: b3ab96a2513bc1f770ff3848c6b44ff9
humanhash: ten-johnny-massachusetts-five
File name:a7531fabfc28df91bb4440fc6d769ba8007476ffdd7b71ac1f9b893bc05c9f72
Download: download sample
Signature Formbook
Create hunting rule
File size:1'136'640 bytes
First seen:2026-10-19 07:35:17 UTC
Last seen:Never
File type:Executable exe
MIME type:application/vnd.microsoft.portable-executable
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (49'290 x AgentTesla, 20'698 x Formbook, 12'401 x SnakeKeylogger)
ssdeep 24576:D+oGUNuA6gKvD3fxwdEU8PRVX4O18s48CnX/2GdAQ:3GUggKL5FpPfok8s48W2gA
TLSH T18E3502543359E906D6931BF50931E7B52B788E489912C3039FFABDEBF9397093818392
TrID 73.9% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
6.6% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
6.6% (.EXE) Win64 Executable (generic) (6522/11/2)
4.5% (.EXE) Win32 Executable (generic) (4504/4/1)
2.0% (.ICL) Windows Icons Library (generic) (2059/9)
Magika pebin
Reporter adrian__luca
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
76
Origin country :
HU HU
Vendor Threat Intelligence
Malware configuration found for:
RoboSki
Details
Link:
https://research.acce.ciphertechsolutions.com/results/4c676261-5e71-49fe-9ba8-a7c8b51b3b74/
Malware family:
n/a
ID:
1
File name:
exe
Verdict:
No threats detected
Analysis date:
2026-10-19 07:49:00 UTC
Tags:
netreactor
Link:
https://app.any.run/tasks/bb45e827-91ec-4055-bfbe-3770f9879e3a

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/92642/
Detection(s):
SecuriteInfo.com.Trojan.Inject7.2471.22656.29072.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
99.1%
Link:
https://cyber-fortress.com/docs/result/index.php?id=6ad5cd635a22ac805bd7d8d9
Tags:
virus micro cupi
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
Searching for synchronization primitives
Launching the default Windows debugger (dwwin.exe)
Gathering data
Verdict:
Malicious
Labled as:
Win/malicious_confidence_90%
Link:
https://www.hybrid-analysis.com/sample/a7531fabfc28df91bb4440fc6d769ba8007476ffdd7b71ac1f9b893bc05c9f72
Verdict:
Malicious
File Type:
exe x32
First seen:
2026-08-31T04:34:00Z UTC
Last seen:
2026-10-21T03:50:00Z UTC
Hits:
~100
Link:
https://opentip.kaspersky.com/a7531fabfc28df91bb4440fc6d769ba8007476ffdd7b71ac1f9b893bc05c9f72/results?tab=lookup
Malware family:
Formbook
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/fbd2d7d0-3e52-4b21-b6e5-8e9a8dbb1c93
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/a7531fabfc28df91bb4440fc6d769ba8007476ffdd7b71ac1f9b893bc05c9f72
Verdict:
inconclusive
YARA:
5 match(es)
Tags:
.Net Executable Managed .NET PE (Portable Executable) PE File Layout SOS: 0.46 Win 32 Exe x86
Link:
https://app.malva.re/file/b3ab96a2513bc1f770ff3848c6b44ff9
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/a7531fabfc28df91bb4440fc6d769ba8007476ffdd7b71ac1f9b893bc05c9f72/
Threat name:
ByteCode-MSIL.Backdoor.FormBook
Create hunting rule
Status:
Malicious
First seen:
2026-08-31 09:03:57 UTC
File Type:
PE (.Net Exe)
Extracted files:
8
AV detection:
27 of 36 (75.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=u5jr7k74fdpzdo2eid6g25u3vaahi5x73v5xdla7toetxqc4t5za._file
Verdict:
malicious
Label(s):
Formbook
Create hunting rule
Link:
https://reports.threatray.com/218715cb-dfe3-446b-9629-c77c94b5ef8f
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook discovery rat spyware stealer trojan
Link:
https://tria.ge/reports/261019-jexe2sgw6z/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Program crash
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Family: Formbook
Formbook payload
Unpacked files
SH256 hash:
a7531fabfc28df91bb4440fc6d769ba8007476ffdd7b71ac1f9b893bc05c9f72
MD5 hash:
b3ab96a2513bc1f770ff3848c6b44ff9
SHA1 hash:
821f322f8ab58f6f3776a7807b99e0657aa0d1fc
Link:
https://www.unpac.me/results/8308833f-beb7-4d90-9faa-0bb54a5908a2/
SH256 hash:
7e680036ba2c9ddd80207fa8be7f90dc660a6aa437b0ba8380a8fe2ca48a8abc
MD5 hash:
9a2150c91e67605ebb9242acd6cfa640
SHA1 hash:
01a74a6e65f0b6281b8309d3fa49d5b7982a5895
Detections:
SUSP_OBF_NET_ConfuserEx_Name_Pattern_Jan24
Create hunting rule
Link:
https://www.unpac.me/results/8308833f-beb7-4d90-9faa-0bb54a5908a2/
SH256 hash:
0ccda5fb8da309f4ca1af9510db9bbcbf8d91c6a12758f2ff05bfc885d46e764
MD5 hash:
19c91fe72a4e7aa7b59d84baf6ce9383
SHA1 hash:
672187a0dbc9f2314ffb8b34f9601fb29b2eb1d7
Link:
https://www.unpac.me/results/8308833f-beb7-4d90-9faa-0bb54a5908a2/
SH256 hash:
586fee184d33d36c99ed3fa2d7a8253cca275f0fd83221e1b8d406d916637ae7
MD5 hash:
3cca2c360d4a8223f7fa6c8307404145
SHA1 hash:
9a543d4434b6f5787009ffadaed9d492118f99e9
Detections:
SUSP_OBF_NET_Reactor_Indicators_Jan24
Create hunting rule
Link:
https://www.unpac.me/results/8308833f-beb7-4d90-9faa-0bb54a5908a2/
Parent samples :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 family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/a7531fabfc28/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
0.87
Link:
https://yomi.yoroi.company/submissions/a7531fabfc28df91bb4440fc6d769ba8007476ffdd7b71ac1f9b893bc05c9f72

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:DotNet_RGB_Embedded_AssemblyLoader_Hunt
Create hunting rule
Author:ShadowOpCode
Description:Hunt .NET bitmap RGB extraction combined with embedded resources and assembly loading
Rule name:HUNT_NET_Loader_ImagePixel_To_AssemblyLoad
Create hunting rule
Author:Anish Bogati
Description:Hunting: .NET loader that reads pixel data from an embedded image, loads it as a .NET assembly, and runs it via reflection or late binding. Catches bitmap-steganography loaders.
Rule name:NET
Create hunting rule
Author:malware-lu
Rule name:NETexecutableMicrosoft
Create hunting rule
Author:malware-lu
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:WIN_Malware_Derialock_ForgeAuto_3127f957_Extrait
Create hunting rule
Author:Marjoriefort
Description:Detects Derialock (pe, etat extrait)
Rule name:WIN_Sample_Unique_69354b41
Create hunting rule
Author:Marjoriefort
Description:Specimen unique (soumission Bazaar) - strings distinctifs propres au sample
Reference:69354b41e10daf03d3f3af881b32d5c0fec56b1cfe96629fd4c5263413a42854.exe

File information

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

Cape
Cape
https://www.capesandbox.com/analysis/92642/

Comments