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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 786169a79bb505773566b041070dee3bb1c6ea67385acfc63ecf989ce701c87a. 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: 19


Intelligence 19 IOCs YARA 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 786169a79bb505773566b041070dee3bb1c6ea67385acfc63ecf989ce701c87a
SHA3-384 hash: 77925580258dd7921835cec8bff89c8eb4abe211636dbc21bc0fe951f1907d37ba3acbc7584d9c9b1e3729c31bf2e039
SHA1 hash: b6c1e9f485ef7a3a2caea2f4f94f7b6db1af6d8a
MD5 hash: 1dffdcc1f6a5cf3e7dfe90493cacf741
humanhash: minnesota-louisiana-monkey-october
File name:mv TOI CHALLENGER SHIP INFORMATION.com
Download: download sample
Signature Formbook
Create hunting rule
File size:854'016 bytes
First seen:2026-10-01 04:06:20 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (49'272 x AgentTesla, 20'615 x Formbook, 12'394 x SnakeKeylogger)
ssdeep 12288:FMAdszX5xvbrPIV9dYnOTNDnyl1zCILrnGBcQjVwxqYoW6Cm7dmhFBgWZ7NDU:o3PWTNDnylgILrGHKo/CmYh1DU
TLSH T14E05F1187A5FEC03C1B9033189E1E27403B59E8DE512D35B9FEA5DD73922B8668D8783
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 threatcat_ch
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
227
Origin country :
CH CH
Vendor Threat Intelligence
Malware configuration found for:
NETReactor RoboSki
Details
Link:
https://research.acce.ciphertechsolutions.com/results/556f9cf2-49d3-4c1f-8a68-84da6a83772d/
Malware family:
formbook
Create hunting rule
ID:
1
File name:
exe
Verdict:
Malicious activity
Analysis date:
2026-10-01 04:09:27 UTC
Tags:
netreactor formbook xloader
Link:
https://app.any.run/tasks/75508035-4dd1-4154-a248-ec7c43f77eef

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/89980/
Verdict:
Malicious
Score:
92.5%
Link:
https://cyber-fortress.com/docs/result/index.php?id=6ace8ad42e5d8a93d8151ab1
Tags:
shellcode cupi
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
Сreating synchronization primitives
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
masquerade net_reactor obfuscated packed packed
Link:
https://www.filescan.io/uploads/6abddc77ef2e7e160b3fa192/reports/a224f845-9286-4f7c-91e8-fb1ad3ec66d5/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/786169a79bb505773566b041070dee3bb1c6ea67385acfc63ecf989ce701c87a
Verdict:
Malicious
File Type:
exe x32
First seen:
2026-09-30T23:44:00Z UTC
Last seen:
2026-10-03T02:30:00Z UTC
Hits:
~1000
Link:
https://opentip.kaspersky.com/786169a79bb505773566b041070dee3bb1c6ea67385acfc63ecf989ce701c87a/results?tab=lookup
Malware family:
Formbook
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/4b62081d-5e6c-4d2a-b2c6-294c3751fe20
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1980368
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains potential unpacker
Found direct / indirect Syscall (likely to bypass EDR)
Joe Sandbox ML detected suspicious sample
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)
Suricata IDS alerts for network traffic
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)
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/786169a79bb505773566b041070dee3bb1c6ea67385acfc63ecf989ce701c87a
Verdict:
Malware
YARA:
12 match(es)
Tags:
.Net .Net Obfuscator .Net Reactor Executable Managed .NET PE (Portable Executable) PE File Layout SOS: 0.59 Win 32 Exe x86
Link:
https://app.malva.re/file/1dffdcc1f6a5cf3e7dfe90493cacf741
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/786169a79bb505773566b041070dee3bb1c6ea67385acfc63ecf989ce701c87a/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2026-10-01 02:32:57 UTC
File Type:
PE (.Net Exe)
Extracted files:
7
AV detection:
22 of 38 (57.89%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=pbqwtj43wucxonlgwbaqodpohoy4n2thhbnm7rr6z6mjzzybzb5a._file
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook discovery rat spyware stealer trojan
Link:
https://tria.ge/reports/261001-epqm2asenc/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
System Location Discovery: System Language Discovery
SmartAssembly .NET packer
Suspicious use of SetThreadContext
Family: Formbook
Formbook payload
Unpacked files
SH256 hash:
786169a79bb505773566b041070dee3bb1c6ea67385acfc63ecf989ce701c87a
MD5 hash:
1dffdcc1f6a5cf3e7dfe90493cacf741
SHA1 hash:
b6c1e9f485ef7a3a2caea2f4f94f7b6db1af6d8a
Detections:
SUSP_OBF_NET_Reactor_Indicators_Jan24
Create hunting rule
Link:
https://www.unpac.me/results/bd509b83-d2ba-4a05-aaf3-fea4dad6b5ae/
SH256 hash:
30f2d28dc33b67a1fe42b16794dc6db9b8893a2112719dd2f6ad4d0e90f7fe90
MD5 hash:
f02b0fd84b26771feb97296598775301
SHA1 hash:
ab0192ae4aaa96c91b6464a850658738ac28fe96
Link:
https://www.unpac.me/results/bd509b83-d2ba-4a05-aaf3-fea4dad6b5ae/
SH256 hash:
67fcee692b5781c4ac6319d8c7c87153b4f47f0adbb008185676803095cd5e1c
MD5 hash:
875631dc3133ad0deebc419f98ee8606
SHA1 hash:
c529dc1cc5551070019a2f7d45f2285f0fe0a89a
Detections:
INDICATOR_EXE_Packed_SmartAssembly
Create hunting rule
Link:
https://www.unpac.me/results/bd509b83-d2ba-4a05-aaf3-fea4dad6b5ae/
Parent samples :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 hash:
1d90c167fbee2848deb7ab4d030c544111564280a17e22f956b118a6372b04e4
MD5 hash:
4d9914bf9a782b5062175e25219eb939
SHA1 hash:
ba401cfe3d4ae65bf1a66f5bec8e5f8f1f289077
Link:
https://www.unpac.me/results/bd509b83-d2ba-4a05-aaf3-fea4dad6b5ae/
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/786169a79bb505773566b041070dee3bb1c6ea67385acfc63ecf989ce701c87a

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: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:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
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.

Malspam

Formbook

Executable exe 786169a79bb505773566b041070dee3bb1c6ea67385acfc63ecf989ce701c87a

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/89980/

Comments