MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b7243dcf764700c2e87bf6a530e095222dbd38c741a4ac4fabc0f6acba7271ce. 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: 16


Intelligence 16 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b7243dcf764700c2e87bf6a530e095222dbd38c741a4ac4fabc0f6acba7271ce
SHA3-384 hash: 4c23defc61375c093ffabef63cf031ca37724ceddbeb6ed661b285dc72251575ea137e3d067b9ad0e75a400c509fcc20
SHA1 hash: dbc49fe6192d7b43234528a92f371bdc43554cea
MD5 hash: bfa846c7b2f995c67c7436920461936f
humanhash: montana-oregon-jersey-fish
File name:b7243dcf764700c2e87bf6a530e095222dbd38c741a4ac4fabc0f6acba7271ce
Download: download sample
Signature Formbook
Create hunting rule
File size:762'880 bytes
First seen:2025-10-10 06:25:45 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'819 x AgentTesla, 19'743 x Formbook, 12'286 x SnakeKeylogger)
ssdeep 12288:7NGGsb/zqahqeeRjTJoDVhl4vFcvDiE9Hc41bKFXaMsNd/Cs8AUS/dPHiEPgYeMS:7NGNLgZTPvFKVHjIXEbY36ldPgNRQ
TLSH T109F40158222EE907E0119F744A72E3F41FA8AFD9E812D617DFD93EDFB436A540981381
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 :
71
Origin country :
HU HU
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
b7243dcf764700c2e87bf6a530e095222dbd38c741a4ac4fabc0f6acba7271ce
Verdict:
No threats detected
Analysis date:
2025-10-10 07:05:03 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/671aaafd-7c6c-43b9-a9a0-4a9ed3c95ca4

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/32004/
Detection(s):
SecuriteInfo.com.Win32.MalwareX-gen.2065.27211.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
99.1%
Link:
https://cyber-fortress.com/docs/result/index.php?id=68e8a7558b7b147cc4b6877e
Tags:
virus shell msil
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a custom TCP request
Creating a process with a hidden window
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)
Adding an exclusion to Microsoft Defender
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
base64 bitmap formbook krypt lolbin msbuild obfuscated packed packed reconnaissance regsvcs rezer0 roboski schtasks stego unsafe vbc zero
Link:
https://www.filescan.io/uploads/68e8a80c11e0595e203a1081/reports/00b10c6f-ecf1-4328-a6b9-cdd5d9b52a90/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_90%
Link:
https://www.hybrid-analysis.com/sample/b7243dcf764700c2e87bf6a530e095222dbd38c741a4ac4fabc0f6acba7271ce
Verdict:
Malicious
File Type:
exe x32
First seen:
2025-09-12T10:14:00Z UTC
Last seen:
2025-10-10T07:20:00Z UTC
Hits:
~1000
Link:
https://opentip.kaspersky.com/b7243dcf764700c2e87bf6a530e095222dbd38c741a4ac4fabc0f6acba7271ce/results?tab=lookup
Malware family:
Agent Tesla
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/04339581-10a3-42b9-af45-138b084f1787
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/b7243dcf764700c2e87bf6a530e095222dbd38c741a4ac4fabc0f6acba7271ce
Verdict:
inconclusive
YARA:
10 match(es)
Tags:
.Net Executable Managed .NET PDB Path PE (Portable Executable) PE File Layout SOS: 0.28 Win 32 Exe x86
Link:
https://app.malva.re/file/bfa846c7b2f995c67c7436920461936f
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/b7243dcf764700c2e87bf6a530e095222dbd38c741a4ac4fabc0f6acba7271ce/
Threat name:
ByteCode-MSIL.Backdoor.FormBook
Create hunting rule
Status:
Malicious
First seen:
2025-09-12 18:05:00 UTC
AV detection:
18 of 24 (75.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=w4sd3t3wi4amf2d362stbyeveiw32oghigskyt5lyd3kzotsohha._file
Verdict:
malicious
Label(s):
unc_loader_037
Create hunting rule
unc_loader_078
Create hunting rule
Similar samples:
error
Formbook
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook discovery execution rat spyware stealer trojan
Link:
https://tria.ge/reports/251010-g93t7sgm6w/
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
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/7430e22d-a287-4529-b313-59374e1a4a06
Unpacked files
SH256 hash:
b7243dcf764700c2e87bf6a530e095222dbd38c741a4ac4fabc0f6acba7271ce
MD5 hash:
bfa846c7b2f995c67c7436920461936f
SHA1 hash:
dbc49fe6192d7b43234528a92f371bdc43554cea
Link:
https://www.unpac.me/results/b0cdd583-475f-4fc9-b24d-94cfc44c78cf/
SH256 hash:
22eacd4e01c2b1293e754d2861d922603411ca7ab9a1d12759fccd220dd4b2cf
MD5 hash:
da1348b1f322167b2370afc0c0471c0c
SHA1 hash:
79429b4cc746d67e7dd107fdded5380b8a879bbc
Link:
https://www.unpac.me/results/b0cdd583-475f-4fc9-b24d-94cfc44c78cf/
SH256 hash:
12dda0cd3b378fbced3071df357733426bb09e47c31fcc3ba6273650f67895dc
MD5 hash:
773c55854eb467033abb78bc2b667f80
SHA1 hash:
54bfd694185cd257abb4ee6b477dba12b971b9b9
Link:
https://www.unpac.me/results/b0cdd583-475f-4fc9-b24d-94cfc44c78cf/
SH256 hash:
23134001b91e28af1bc7d9baaf101a282d032541d1ffbeec774891f5fca09a31
MD5 hash:
c6b73f7f17fd29a2f012475f9faede02
SHA1 hash:
c8a3fafeb9fad905b67e0c39c3137dd23d510011
Link:
https://www.unpac.me/results/b0cdd583-475f-4fc9-b24d-94cfc44c78cf/
SH256 hash:
ca6bdc7a11d59c2b9fe6813ed76bfe3c3c7adbe8fcf7b74955762d1a5976270a
MD5 hash:
52ad76c67a9755b58169046c3cda87c5
SHA1 hash:
caa68ad578003a2d92cce702f2a9ba77fc54028d
Detections:
SUSP_OBF_NET_ConfuserEx_Name_Pattern_Jan24
Create hunting rule
SUSP_OBF_NET_Reactor_Indicators_Jan24
Create hunting rule
Link:
https://www.unpac.me/results/b0cdd583-475f-4fc9-b24d-94cfc44c78cf/
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/b7243dcf764700c2e87bf6a530e095222dbd38c741a4ac4fabc0f6acba7271ce

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
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

File information

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

Cape
Cape
https://www.capesandbox.com/analysis/32004/

Comments