MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 13a2d76da8e0ae166f02aa164c23e688750cd319e6b1d6d15b9de8fc783c72f2. 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 4 File information Comments

SHA256 hash: 13a2d76da8e0ae166f02aa164c23e688750cd319e6b1d6d15b9de8fc783c72f2
SHA3-384 hash: c4c212a3823a9cca47e6e80a9e5813f9bedb7b5bf8a932ac2fada9f437359258b501fa7087084d7b100faa7d77e77c2b
SHA1 hash: 7477742e0d9b76c6691e2b9e7b1a61621d79cac0
MD5 hash: 9dd97a5c3c6f2aa48ab75cae6f1bc042
humanhash: xray-spaghetti-twenty-black
File name:13a2d76da8e0ae166f02aa164c23e688750cd319e6b1d6d15b9de8fc783c72f2
Download: download sample
Signature Formbook
File size:665'088 bytes
First seen:2025-10-10 06:52:11 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 12288:pE42x7untvfhIPQvZ15GTgcQpKdhDuwvGEI8KQtfCkW++FjS9f2T1ANKJ2J1:pE4Y7wpfyIvZ15Gikh6w+876kR+FjSxl
Threatray 2'041 similar samples on MalwareBazaar
TLSH T1AEE4F115229EEE01D5E11BF40871E7B40338BE99B821C3479EFABDDFB93876118552A3
TrID 71.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.2% (.EXE) Win64 Executable (generic) (10522/11/4)
6.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.3% (.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 :
96
Origin country :
HU HU
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
_13a2d76da8e0ae166f02aa164c23e688750cd319e6b1d6d15b9de8fc783c72f2.exe
Verdict:
No threats detected
Analysis date:
2025-10-10 07:52:59 UTC
Tags:
n/a

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
92.5%
Tags:
agenttesla virus micro msil
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Сreating synchronization primitives
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
obfuscated packed packed packer_detected vbnet
Verdict:
Malicious
File Type:
exe x32
First seen:
2025-09-17T04:30:00Z UTC
Last seen:
2025-10-09T02:49:00Z UTC
Hits:
~1000
Detections:
Backdoor.Win32.Blakken.sb Trojan.MSIL.Inject.sb Trojan.Win32.SpeedBit.sb Trojan.MSIL.Agent.sb Backdoor.Agent.HTTP.C&C Trojan-Spy.Win32.Noon.sb Trojan.MSIL.Taskun.sb Trojan.MSIL.Crypt.sb HEUR:Trojan-PSW.MSIL.Agensla.gen Trojan-Spy.Noon.HTTP.ServerRequest Trojan-Dropper.Win32.Injector.sb Trojan.Win32.Agent.sb PDM:Trojan.Win32.Generic
Verdict:
inconclusive
YARA:
10 match(es)
Tags:
.Net Executable Managed .NET PDB Path PE (Portable Executable) PE File Layout SOS: 0.45 Win 32 Exe x86
Threat name:
Win32.Backdoor.FormBook
Status:
Malicious
First seen:
2025-09-17 11:42:26 UTC
File Type:
PE (.Net Exe)
Extracted files:
9
AV detection:
27 of 36 (75.00%)
Threat level:
  5/5
Result
Malware family:
formbook
Score:
  10/10
Tags:
family:formbook campaign:aa28 discovery rat spyware stealer trojan
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Formbook payload
Formbook
Formbook family
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Unpacked files
SH256 hash:
13a2d76da8e0ae166f02aa164c23e688750cd319e6b1d6d15b9de8fc783c72f2
MD5 hash:
9dd97a5c3c6f2aa48ab75cae6f1bc042
SHA1 hash:
7477742e0d9b76c6691e2b9e7b1a61621d79cac0
SH256 hash:
1041b538ccbc7d66e59247ef7551cde9b6c282843541585e9190a8e2e3943b12
MD5 hash:
e870d1e8f3791ccc141f85f40fd2972b
SHA1 hash:
150919ee289cffa6feb40ab8261f620dd7e26aac
SH256 hash:
51a06601c727e3dc121149cb24b9b5986a56d2d5181b50108a9b4758088d4991
MD5 hash:
1d695d38d7f9082765c86880cfd68c48
SHA1 hash:
adf3977374ce61dff5e2a5ddc18f800cdf95e91c
Detections:
SUSP_OBF_NET_ConfuserEx_Name_Pattern_Jan24 SUSP_OBF_NET_Reactor_Indicators_Jan24
SH256 hash:
c02ec197ab05852a144df8d2c65a25934c31fc1056d36405f39abf2f0c137e70
MD5 hash:
cb0dd661076b2a5b7af012063762d9bd
SHA1 hash:
5a77ad21a6f697fcd78dff2012ab946b5efc625f
Detections:
win_formbook_w0 win_formbook_g0 win_formbook_auto FormBook Windows_Trojan_Formbook Formbook
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.

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