MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 77d676adea7d98767c2412d2bec0298d9514b6eb3ca5ecfe1cd5d29b1ace1824. 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 3 File information Comments

SHA256 hash: 77d676adea7d98767c2412d2bec0298d9514b6eb3ca5ecfe1cd5d29b1ace1824
SHA3-384 hash: e20e90bd1c2ba4daff95b4040191995a93f2d3d9dd1a30799bef4c31bc77b734b817d41b5288734914578bf98959be6f
SHA1 hash: 0d483707b51ecd571077a13892efa43b42ec5d39
MD5 hash: b10e75f32eba243fb179eee2e6fc6810
humanhash: alaska-fanta-grey-item
File name:z1DEC12DOCSFORLPD.exe
Download: download sample
Signature Formbook
File size:811'520 bytes
First seen:2025-12-12 07:30:07 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'744 x AgentTesla, 19'608 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 12288:yEVvjyGJPztgCeTRTOw2uOzjqJNsaoPacrigcFUWbvCYKjjZXp3J35G0rl:yKOHBlbkeJNyaCcFtvCYKXfrl
Threatray 2'418 similar samples on MalwareBazaar
TLSH T19305E0D43A267B1ADEA14671E568ED7683F52D78B010F9EA49DD3B87349C310AE0CF42
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 FXOLabs
Tags:exe FormBook

Intelligence


File Origin
# of uploads :
1
# of downloads :
129
Origin country :
BR BR
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
_77d676adea7d98767c2412d2bec0298d9514b6eb3ca5ecfe1cd5d29b1ace1824.exe
Verdict:
No threats detected
Analysis date:
2025-12-12 07:38:52 UTC
Tags:
n/a

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
93.3%
Tags:
virus msil hype
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
packed vbnet
Verdict:
Malicious
File Type:
exe x32
First seen:
2025-12-12T04:28:00Z UTC
Last seen:
2025-12-14T03:37:00Z UTC
Hits:
~100
Detections:
Trojan-PSW.Win32.Stealer.sb Trojan.MSIL.Agent.sb HEUR:Trojan-Spy.MSIL.Noon.gen Trojan.MSIL.Inject.sb Trojan-Spy.Noon.HTTP.ServerRequest PDM:Trojan.Win32.Generic Backdoor.Agent.HTTP.C&C Trojan-Spy.Win32.Noon.sb Trojan.MSIL.Taskun.sb Trojan.MSIL.Crypt.sb
Verdict:
inconclusive
YARA:
10 match(es)
Tags:
.Net Executable Managed .NET PDB Path PE (Portable Executable) PE File Layout SOS: 0.60 Win 32 Exe x86
Threat name:
ByteCode-MSIL.Backdoor.FormBook
Status:
Malicious
First seen:
2025-12-12 07:30:39 UTC
File Type:
PE (.Net Exe)
Extracted files:
9
AV detection:
28 of 38 (73.68%)
Threat level:
  5/5
Result
Malware family:
formbook
Score:
  10/10
Tags:
family:formbook adware discovery rat spyware stealer trojan
Behaviour
Modifies Internet Explorer settings
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of UnmapMainImage
Suspicious use of WriteProcessMemory
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Formbook payload
Formbook
Formbook family
Unpacked files
SH256 hash:
77d676adea7d98767c2412d2bec0298d9514b6eb3ca5ecfe1cd5d29b1ace1824
MD5 hash:
b10e75f32eba243fb179eee2e6fc6810
SHA1 hash:
0d483707b51ecd571077a13892efa43b42ec5d39
SH256 hash:
efb6a13171efda5436a296f735066a438a281d0c38a63831d59c9bb86ed4e1cb
MD5 hash:
03be1634a292fb3b9dd147fc52404a43
SHA1 hash:
9b814356f9cf32900e28e1a3ba69018b7b31c471
Detections:
SUSP_OBF_NET_ConfuserEx_Name_Pattern_Jan24
SH256 hash:
3d6bcd336f9a9b1b7f6e36a40f52e656d7bd65518d8b406823be871765216a67
MD5 hash:
f8d10f870a7925efd654cf659e8e3463
SHA1 hash:
afbe4063dd36e2c600fdcaba88d38bf4250cb826
Detections:
SUSP_OBF_NET_ConfuserEx_Name_Pattern_Jan24 SUSP_OBF_NET_Reactor_Indicators_Jan24
SH256 hash:
95d4e6d867da09d9fb2302ef94d540644204068b149018da9258cc36397ffbd2
MD5 hash:
136616fdb1e67935a6142086452e8eef
SHA1 hash:
c14840db3410d29d1a16822b917dacf1860b98eb
SH256 hash:
1291bd4a5cd477d4b98a15b84d22ab6cf77e55fe229e6cf11f02cf8f4ef44a25
MD5 hash:
e32ae965fc0b748c02975770b0fab66e
SHA1 hash:
867bbe1905a06fe05efd0be3500bf851e2e4026f
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: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.

Malspam

Formbook

Executable exe 77d676adea7d98767c2412d2bec0298d9514b6eb3ca5ecfe1cd5d29b1ace1824

(this sample)

  
Delivery method
Distributed via e-mail attachment

Comments