MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 23dca6b91ea8093febf5261d70a65f9fbf59891997da2e2232e0e4bacc263815. 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: 18


Intelligence 18 IOCs YARA 4 File information Comments

SHA256 hash: 23dca6b91ea8093febf5261d70a65f9fbf59891997da2e2232e0e4bacc263815
SHA3-384 hash: ea1a5e6a04ae8213ba40fb3fb7b7daa0f4432ad806d6277fcbdd0efda6acf6c72b01f96c86485c8eab1f377ba252afe6
SHA1 hash: 7b3a441aec981e073dd0ebf7e3f6f780cdb80d99
MD5 hash: 4987ff7b898afcc57dcb642e0c28ff50
humanhash: hydrogen-diet-earth-football
File name:23dca6b91ea8093febf5261d70a65f9fbf59891997da2e2232e0e4bacc263815
Download: download sample
Signature Formbook
File size:861'184 bytes
First seen:2025-11-06 10:34:34 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'749 x AgentTesla, 19'653 x Formbook, 12'246 x SnakeKeylogger)
ssdeep 24576:zj7igyLh9+Cl/3zShRwPTInalVcE/RqbFyA:egEh9+E/3z4RaIXFyA
Threatray 2'221 similar samples on MalwareBazaar
TLSH T13E05CFE07744C426C8A796B98436E6B76533AE9DDC28860D3DD9BF0F7CB2342041799B
TrID 69.7% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.0% (.EXE) Win64 Executable (generic) (10522/11/4)
6.2% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.2% (.EXE) Win32 Executable (generic) (4504/4/1)
1.9% (.EXE) Win16/32 Executable Delphi generic (2072/23)
Magika pebin
Reporter adrian__luca
Tags:exe FormBook

Intelligence


File Origin
# of uploads :
1
# of downloads :
66
Origin country :
HU HU
Vendor Threat Intelligence
Malware family:
formbook
ID:
1
File name:
23dca6b91ea8093febf5261d70a65f9fbf59891997da2e2232e0e4bacc263815
Verdict:
Malicious activity
Analysis date:
2025-11-06 13:15:13 UTC
Tags:
formbook xloader

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Сreating synchronization primitives
Creating a process with a hidden window
Restart of the analyzed sample
Adding an exclusion to Microsoft Defender
Gathering data
Verdict:
Malicious
File Type:
exe x32
First seen:
2025-10-13T22:54:00Z UTC
Last seen:
2025-11-02T16:09:00Z UTC
Hits:
~100
Verdict:
inconclusive
YARA:
10 match(es)
Tags:
.Net Executable Managed .NET PDB Path PE (Portable Executable) PE File Layout SOS: 0.35 Win 32 Exe x86
Threat name:
Win32.Trojan.Taskun
Status:
Malicious
First seen:
2025-10-14 01:49:17 UTC
File Type:
PE (.Net Exe)
Extracted files:
26
AV detection:
20 of 24 (83.33%)
Threat level:
  5/5
Result
Malware family:
formbook
Score:
  10/10
Tags:
family:formbook discovery execution rat spyware stealer trojan
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Program crash
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Checks computer location settings
Command and Scripting Interpreter: PowerShell
Formbook payload
Formbook
Formbook family
Unpacked files
SH256 hash:
23dca6b91ea8093febf5261d70a65f9fbf59891997da2e2232e0e4bacc263815
MD5 hash:
4987ff7b898afcc57dcb642e0c28ff50
SHA1 hash:
7b3a441aec981e073dd0ebf7e3f6f780cdb80d99
SH256 hash:
821a7fd1fba460db9b4e331865e427077be038c17731fb2d6fcd3df4da01ba32
MD5 hash:
69215d476eeb6d288c331a08109570e1
SHA1 hash:
8674932f70d3f14ec4d7149d598a08f4ffbee149
SH256 hash:
55f03ddb5893ed4fe5a05781060279bfd3140da88b6cfd70e423f4b496062927
MD5 hash:
b9f33cfca787a1b8ce3429e8061a2986
SHA1 hash:
8e2f6406a38c61850d370602e905435d4f261b43
SH256 hash:
eb15aa0b2b07b9392d47b1cc455a8f0364657ff6bde1f6ebc88b819e3aea0449
MD5 hash:
93da2becb1604ea1748ea3bf41ec7f7e
SHA1 hash:
17d128527768fd2895f32b9ee6e375f1cc96b384
Detections:
SUSP_OBF_NET_ConfuserEx_Name_Pattern_Jan24 SUSP_OBF_NET_Reactor_Indicators_Jan24
SH256 hash:
b6781edd819929c2fe8b41985314c4eaed3c35ce05a61cdf911da3f09de53074
MD5 hash:
69fe9dc75c1792830f0a6d2525d05b22
SHA1 hash:
ae712836721804406194a813b91c7dd9f122d28c
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