MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 9359aaa225ca8ccbe7b5cc67145007036d171d2a119bd34689bdf3aa01f20970. 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: 13


Intelligence 13 IOCs YARA 4 File information Comments

SHA256 hash: 9359aaa225ca8ccbe7b5cc67145007036d171d2a119bd34689bdf3aa01f20970
SHA3-384 hash: 05eb02cc28c4a364be4c1966465f5f2b059bd65e112b9f4ee25f0074b989a56492b047838bf71fb49e2724d11d8ffd17
SHA1 hash: cb3f0971c8a4eb867e8ba2f4e246032bb2356c4c
MD5 hash: e8a079354293e8e14560d13aec797f9c
humanhash: jig-river-gee-uniform
File name:9359aaa225ca8ccbe7b5cc67145007036d171d2a119bd34689bdf3aa01f20970
Download: download sample
Signature Formbook
File size:1'136'640 bytes
First seen:2026-08-10 14:09:37 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (49'190 x AgentTesla, 20'337 x Formbook, 12'364 x SnakeKeylogger)
ssdeep 24576:lWejR6pFsRoSsD+WAnN8aXKDRfsXwYcJ/7wjc9LM8h5Yjcdqb6:lTtimRoSu+JzaNsXPcV7bLMOd7
TLSH T1B0350219231ACD02C6935FB15E70E37905B85D98B811E2B39EF6BDD7F87E3866C12281
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
dhash icon 0048928cb2928044 (6 x Formbook, 2 x AsyncRAT, 1 x njrat)
Reporter adrian__luca
Tags:exe FormBook

Intelligence


File Origin
# of uploads :
1
# of downloads :
60
Origin country :
HU HU
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Launching a service
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)
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
krypt packed vbnet
Verdict:
Malicious
File Type:
exe x32
First seen:
2026-07-09T00:56:00Z UTC
Last seen:
2026-08-10T10:16:00Z UTC
Hits:
~1000
Gathering data
Threat name:
ByteCode-MSIL.Spyware.Negasteal
Status:
Malicious
First seen:
2026-07-09 06:05:32 UTC
File Type:
PE (.Net Exe)
Extracted files:
10
AV detection:
26 of 36 (72.22%)
Threat level:
  2/5
Result
Malware family:
formbook
Score:
  10/10
Tags:
family:formbook discovery rat spyware stealer trojan
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Program crash
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Family: Formbook
Formbook payload
Unpacked files
SH256 hash:
9359aaa225ca8ccbe7b5cc67145007036d171d2a119bd34689bdf3aa01f20970
MD5 hash:
e8a079354293e8e14560d13aec797f9c
SHA1 hash:
cb3f0971c8a4eb867e8ba2f4e246032bb2356c4c
SH256 hash:
2b4d56bd632da3fbc307b6c6cf449d1d2ef2f6700634f868db6efb4171cff102
MD5 hash:
1449bb8a1e6fcdd413475160eacf97b5
SHA1 hash:
576ba0ac103884e904084f1c5bbaa6e134ac0703
SH256 hash:
05d975501d31f58435c5de8fc9d1f2e38cbd4f4eaa4e39a79524188fd7d79ddb
MD5 hash:
22459d49e17b4d2177a3535d2baca718
SHA1 hash:
792dbc5508470c14ce6f03d8f8812bc6329eca12
SH256 hash:
f378892bd008c57147962c79f2bc52b1dc227cfa5b483642c6fe30424e50ceeb
MD5 hash:
7e772e95d530a86a6995b40c6dade77d
SHA1 hash:
a49d9181e7392801a062fe8c5aea27256731ad26
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:NET
Author:malware-lu
Rule name:NETexecutableMicrosoft
Author:malware-lu
Rule name:pe_imphash
Rule name:Skystars_Malware_Imphash
Author:Skystars LightDefender
Description:imphash

File information


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

Comments