MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f87bdcf2c41359b3e0501be8c69f6050c745f8dfad04cd1c87c7a5c71073cf9d. 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: 10


Intelligence 10 IOCs YARA 15 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: f87bdcf2c41359b3e0501be8c69f6050c745f8dfad04cd1c87c7a5c71073cf9d
SHA3-384 hash: 8fd69be912623283a99ca82721470604219ef864aa8b134241d0a68fa2eb2335e814b4513f65af3c05b005c37b4ff7b9
SHA1 hash: 00d264bacaf5b8adb766d1197e14b3044cc2eee5
MD5 hash: eab22330adf4ab80bc84c64f06edfe29
humanhash: mockingbird-colorado-texas-beer
File name:f87bdcf2c41359b3e0501be8c69f6050c745f8dfad04cd1c87c7a5c71073cf9d.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:303'616 bytes
First seen:2026-08-26 08:40:41 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
ssdeep 6144:NKB6sgU1RuGftxDRp1FwzI2/ikikTROqBYZZPjX9+v:gss/ftxDRp54ikDTRjCZ
TLSH T1DE5413EA2CA9C4B1DD03D7BD8DA90DC9160D38E08B181F579AA69C592FB3DD3307486D
TrID 44.6% (.EXE) Win64 Executable (generic) (6522/11/2)
14.0% (.ICL) Windows Icons Library (generic) (2059/9)
13.8% (.EXE) OS/2 Executable (generic) (2029/13)
13.7% (.EXE) Generic Win/DOS Executable (2002/3)
13.6% (.EXE) DOS Executable (generic) (2000/1)
Magika pebin
Reporter whack_sh
Tags:exe FormBook whack.sh

Intelligence

File Origin
# of uploads :
1
# of downloads :
179
Origin country :
US US
Vendor Threat Intelligence
No detections
Malware family:
n/a
ID:
1
File name:
exe
Verdict:
No threats detected
Analysis date:
2026-08-26 09:25:06 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/8f779a1d-27f2-44af-869c-8dc4daa6cb05

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/82871/
Detection(s):
SecuriteInfo.com.FileRepMalware.25735562.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Launching a process
Сreating synchronization primitives
Unauthorized injection to a system process
Verdict:
Malicious
Labled as:
Malware/formbook
Link:
https://www.hybrid-analysis.com/sample/f87bdcf2c41359b3e0501be8c69f6050c745f8dfad04cd1c87c7a5c71073cf9d
Verdict:
Unknown
File Type:
exe x64
Link:
https://opentip.kaspersky.com/f87bdcf2c41359b3e0501be8c69f6050c745f8dfad04cd1c87c7a5c71073cf9d/results?tab=lookup
Malware family:
Formbook
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/4f91c04d-b9d3-457c-a9ee-86b40c921dfe
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/f87bdcf2c41359b3e0501be8c69f6050c745f8dfad04cd1c87c7a5c71073cf9d
Verdict:
inconclusive
YARA:
4 match(es)
Tags:
Executable PE (Portable Executable) PE File Layout Win 64 Exe x64
Link:
https://app.malva.re/file/eab22330adf4ab80bc84c64f06edfe29
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/f87bdcf2c41359b3e0501be8c69f6050c745f8dfad04cd1c87c7a5c71073cf9d/
Threat name:
Win64.Backdoor.FormBook
Create hunting rule
Status:
Malicious
First seen:
2026-08-26 08:41:21 UTC
File Type:
PE+ (Exe)
AV detection:
16 of 36 (44.44%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=7b55z4wecnm3hycqdpumnh3akddul6g7vucm2hehy6s4oedtz6oq._file
Verdict:
malicious
Label(s):
Formbook
Create hunting rule
Link:
https://reports.threatray.com/8dc52645-dc1d-4bc2-9cad-049ce89ad2dd
Result
Malware family:
n/a
Score:
  3/10
Tags:
n/a
Link:
https://tria.ge/reports/260826-kljcfaar7x/
Behaviour
Suspicious behavior: EnumeratesProcesses
Unpacked files
SH256 hash:
f87bdcf2c41359b3e0501be8c69f6050c745f8dfad04cd1c87c7a5c71073cf9d
MD5 hash:
eab22330adf4ab80bc84c64f06edfe29
SHA1 hash:
00d264bacaf5b8adb766d1197e14b3044cc2eee5
Link:
https://www.unpac.me/results/9dce087e-e29a-449e-a1e9-784929d0de5f/
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/f87bdcf2c413/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Legit
Score:
0.14
Link:
https://yomi.yoroi.company/submissions/f87bdcf2c41359b3e0501be8c69f6050c745f8dfad04cd1c87c7a5c71073cf9d

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:CP_Script_Inject_Detector
Create hunting rule
Author:DiegoAnalytics
Description:Detects attempts to inject code into another process across PE, ELF, Mach-O binaries
Rule name:DebuggerCheck__GlobalFlags
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerCheck__QueryInfo
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerHiding__Active
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerHiding__Thread
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DetectEncryptedVariants
Create hunting rule
Author:Zinyth
Description:Detects 'encrypted' in ASCII, Unicode, base64, or hex-encoded
Rule name:dgaagas
Create hunting rule
Author:Harshit
Description:Uses certutil.exe to download a file named test.txt
Rule name:golang_bin_JCorn_CSC846
Create hunting rule
Author:Justin Cornwell
Description:CSC-846 Golang detection ruleset
Rule name:MD5_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for MD5 constants
Rule name:pe_no_import_table
Create hunting rule
Description:Detect pe file that no import table
Rule name:RIPEMD160_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for RIPEMD-160 constants
Rule name:SEH__vectored
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:SHA1_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for SHA1 constants
Rule name:TH_Win_ETW_Bypass_2025_CYFARE
Create hunting rule
Author:CYFARE
Description:Windows ETW Bypass Detection Rule - 2025
Reference:https://cyfare.net/

File information

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

Web download

Formbook

Executable exe f87bdcf2c41359b3e0501be8c69f6050c745f8dfad04cd1c87c7a5c71073cf9d

(this sample)

  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/3908273/
Cape
Cape
https://www.capesandbox.com/analysis/82871/

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