MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f8b0f66cf4778ac6c5c91358e523994efec3065636e25d9487ec5d87dfbef14b. 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 12 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: f8b0f66cf4778ac6c5c91358e523994efec3065636e25d9487ec5d87dfbef14b
SHA3-384 hash: ea22c643d738a60045d90ad7e705df1f51e9100f3eabb42ce83efdadde9383e110c06a8d375273dc1438836b90f99ca2
SHA1 hash: 758ed607429a00ae75cc669647a1318a934d4d09
MD5 hash: ffa38a5a72b193ff447bb9b8b1edd85b
humanhash: butter-green-kentucky-jig
File name:revised quotation.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:1'245'696 bytes
First seen:2025-11-04 13:49:07 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 1895460fffad9475fda0c84755ecfee1 (309 x Formbook, 53 x AgentTesla, 36 x SnakeKeylogger)
ssdeep 24576:Z5EmXFtKaL4/oFe5T9yyXYfP1ijXdakGrKV59v7VbKC/:ZPVt/LZeJbInQRaklVPvhK
Threatray 2'042 similar samples on MalwareBazaar
TLSH T1F945BF0273D1C062FFAB96334B56F6115BBC79260123AA2F13981D79BE705B1463E7A3
TrID 40.3% (.EXE) Win64 Executable (generic) (10522/11/4)
19.3% (.EXE) Win16 NE executable (generic) (5038/12/1)
17.2% (.EXE) Win32 Executable (generic) (4504/4/1)
7.7% (.EXE) OS/2 Executable (generic) (2029/13)
7.6% (.EXE) Generic Win/DOS Executable (2002/3)
Magika pebin
Reporter James_inthe_box
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
107
Origin country :
US US
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
4f8dd984f54d53df4b3df3da17af16d6d7f1e2a384110b964f8c857220b0c316.rar
Verdict:
Suspicious activity
Analysis date:
2025-11-04 02:48:51 UTC
Tags:
arch-exec
Link:
https://app.any.run/tasks/334fb0f8-55d8-4a7e-8dbb-e5ad016f270c

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/35292/
Detection(s):
SecuriteInfo.com.Win32.Trojan.Agent.35E5V6.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
96.5%
Link:
https://cyber-fortress.com/docs/result/index.php?id=690969939942f1282ecbd61b
Tags:
autoit emotet
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Creating a file in the %temp% directory
Launching a process
Сreating synchronization primitives
DNS request
Connection attempt
Unauthorized injection to a system process
Gathering data
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/f8b0f66cf4778ac6c5c91358e523994efec3065636e25d9487ec5d87dfbef14b
Verdict:
Malicious
File Type:
exe x32
First seen:
2025-11-03T22:32:00Z UTC
Last seen:
2025-11-05T11:32:00Z UTC
Hits:
~1000
Detections:
Backdoor.Agent.HTTP.C&C Trojan-Spy.Win32.Noon.sb Trojan.Win32.Inject.sb Trojan-Dropper.Win32.Dorifel.sbd Trojan.Win32.Zenpak.sb Trojan.Win32.Agent.sb PDM:Trojan.Win32.Generic Trojan.Win32.Strab.sb Trojan-Spy.Noon.HTTP.ServerRequest Trojan-PSW.Win32.Stealer.sb Trojan.Win64.Injects.hha
Link:
https://opentip.kaspersky.com/f8b0f66cf4778ac6c5c91358e523994efec3065636e25d9487ec5d87dfbef14b/results?tab=lookup
Malware family:
Formbook
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/86940e5e-0718-4abd-9261-68cac2fbcc15
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/f8b0f66cf4778ac6c5c91358e523994efec3065636e25d9487ec5d87dfbef14b
Verdict:
Malware
YARA:
7 match(es)
Tags:
AutoIt Decompiled Executable PDB Path PE (Portable Executable) PE File Layout Suspect Win 32 Exe x86
Link:
https://app.malva.re/file/ffa38a5a72b193ff447bb9b8b1edd85b
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/f8b0f66cf4778ac6c5c91358e523994efec3065636e25d9487ec5d87dfbef14b/
Threat name:
Win32.Trojan.AutoitInject
Create hunting rule
Status:
Malicious
First seen:
2025-11-04 02:49:39 UTC
File Type:
PE (Exe)
Extracted files:
28
AV detection:
27 of 38 (71.05%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=7cypm3huo6fmnrojcnmoki4zj37mgbswg3rf3feh5roypx566ffq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
0390870c49dd62504fc10df0c2d3e6b17d0ca6a6bce1c450d40d923ed19cca13
Formbook
183d51674a5f6425a8a1fba8fbbca176ecb4525d5587d4906737ce7b89e9fcac
Formbook
34e430a853791744d1c0ee90c71c515c8713e10bd82a0037db6380b11404a8c7
Formbook
668c1f290c086d51456b3140d33615a6e9fdcaba766966349a4fe33fd37263d6
Formbook
7a0bd1cc99236bcab7acb21efb90fcdf612cc14e51d837d9e773f63ebc37c8de
Formbook
7fb51ecddea989bbc4c71fb744b95e9045e64c7a534d661d972c048a40050bb7
Formbook
a6d8fac7f3f48a2f72f9fa463fcff72637903c6addbfbc58585586f65ae08422
Formbook
d382c14c00727d820ed4991b16fd47b4d7cd1237866219674ad5d6e52dcf47ae
Formbook
d5524fe820bb5053c55848f1b832179009569460a9879337458502b4c10c8195
Formbook
error
Formbook
f4a2ff30755f15ff9c9e1ea5fdabd00f3c2755bb9d28829390833b07fc1cdce1
Formbook
+ 2'032 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook discovery rat spyware stealer trojan
Link:
https://tria.ge/reports/251104-q4y4hatlgp/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Program crash
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Formbook payload
Formbook
Formbook family
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/f45e13b9-470b-48f2-8cc2-139dd36ed721
Unpacked files
SH256 hash:
f20b0221d2b24d103f9b2c17d5926dad147cf729dccbf4c2ea455bd8bcdbdaf9
MD5 hash:
ef3327e79680e38ded1208ea8981d9c7
SHA1 hash:
c180b0448b2d92ecf725bca5c6b9c93dd6fc23cd
Link:
https://www.unpac.me/results/8ec77bab-3b7b-4dbf-bff0-5397ebe0cd09/
SH256 hash:
10ccda6c09cfe391fc3d5bfc56198e785908ce0da7a815b02c0223a922428078
MD5 hash:
6dd2ef688b6775918fc91ece2b031576
SHA1 hash:
691d06465af3feb53fd0f38195fe28d5a18e13a9
Detections:
win_formbook_g0
Create hunting rule
Link:
https://www.unpac.me/results/8ec77bab-3b7b-4dbf-bff0-5397ebe0cd09/
Parent samples :
f8b0f66cf4778ac6c5c91358e523994efec3065636e25d9487ec5d87dfbef14b
11cc53e72e2f50f162ecbf30fe545b9fbdec4527ae1fb36522a563e8303894fc
2968dbd64af4b7668158b729f043c71b653bec1d5e4c965359bbc662a4cd3fda
9adeec7138d5d6854c3632ed0560edf5566d75347ffb0b13aa441ba89aed930a
dfb26be7653792b528f1eebbf369f94a76c1f40ff8cb50377f8d49d0ed846417
3dc974c7c0c8f9661e021e383d86122d6053e45f1d42d7164d33a717b9b2bd02
0736bca6f642df69654f042e4ea38fe03d11a9dd6ac5e14fc5b6cba2a1facdfe
a68c8b552dc6416db42a98e331b13d30e6ba04d3dec7c9fe1636f1eebed71912
7051251ec9dccbd7571cb7b3c30e5f64ecf1feb7f3694b38a8307e24a3ba56ab
20d5148fc579f4d5cd970d13bce2f15136c8eb788037ffa40802d4f947946621
d35e98ed5ac77679e813b2a362ce37bc0a247b45758d60327ac5b8a4a048c0ab
SH256 hash:
f8b0f66cf4778ac6c5c91358e523994efec3065636e25d9487ec5d87dfbef14b
MD5 hash:
ffa38a5a72b193ff447bb9b8b1edd85b
SHA1 hash:
758ed607429a00ae75cc669647a1318a934d4d09
Link:
https://www.unpac.me/results/8ec77bab-3b7b-4dbf-bff0-5397ebe0cd09/
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/f8b0f66cf477/report/overview.html
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/f8b0f66cf4778ac6c5c91358e523994efec3065636e25d9487ec5d87dfbef14b

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:AutoIT_Compiled
Create hunting rule
Author:@bartblaze
Description:Identifies compiled AutoIT script (as EXE). This rule by itself does NOT necessarily mean the detected file is malicious.
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__API
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:Formbook
Create hunting rule
Author:kevoreilly
Description:Formbook Payload
Rule name:golang_bin_JCorn_CSC846
Create hunting rule
Author:Justin Cornwell
Description:CSC-846 Golang detection ruleset
Rule name:meth_stackstrings
Create hunting rule
Author:Willi Ballenthin
Rule name:pe_detect_tls_callbacks
Create hunting rule
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:SHA1_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for SHA1 constants
Rule name:shellcode
Create hunting rule
Author:nex
Description:Matched shellcode byte patterns
Rule name:TH_Generic_MassHunt_Win_Malware_2025_CYFARE
Create hunting rule
Author:CYFARE
Description:Generic Windows malware mass-hunt 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.

Cape
Cape
https://www.capesandbox.com/analysis/35292/

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