MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 ccf1c503dc69c6d217cfd867a4b1ca9e77b5614ede7cd623c8d8f4f4e3177c77. 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: 17


Intelligence 17 IOCs YARA 32 File information Comments

SHA256 hash: ccf1c503dc69c6d217cfd867a4b1ca9e77b5614ede7cd623c8d8f4f4e3177c77
SHA3-384 hash: a76517428fbcfb6892c66ab3614bfe281e587e0fe6e5738e619b664b9cb8fcd6e825934c4e445d8b3f1e726b1b7ee1ba
SHA1 hash: 3a96ac3b33e0ebb58985824fbd9dd6e2183f9236
MD5 hash: f0b8af99c4ba4ef314365a208d3d952f
humanhash: harry-chicken-robert-violet
File name:ccf1c503dc69c6d217cfd867a4b1ca9e77b5614ede7cd623c8d8f4f4e3177c77
Download: download sample
Signature Formbook
File size:1'113'600 bytes
First seen:2026-05-08 12:47:28 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 279daa640d9140f9842860a738abd363 (40 x Formbook, 8 x AgentTesla, 2 x CastleLoader)
ssdeep 24576:QqDEvCTbMWu7rQYlBQcBiT6rprG8aTdLTWdzq0Z:QTvC/MTQYxsWR7aTIO0
TLSH T1EC35BF027381C062FFAB92734B5AF6515BBC69260123E62F13981D79FE701B1563E7A3
TrID 29.5% (.EXE) Win64 Executable (generic) (6522/11/2)
22.8% (.EXE) Win16 NE executable (generic) (5038/12/1)
20.3% (.EXE) Win32 Executable (generic) (4504/4/1)
9.1% (.EXE) OS/2 Executable (generic) (2029/13)
9.0% (.EXE) Generic Win/DOS Executable (2002/3)
Magika pebin
dhash icon aae2f3e38383b629 (2'697 x Formbook, 1'203 x CredentialFlusher, 928 x AgentTesla)
Reporter adrian__luca
Tags:exe FormBook

Intelligence


File Origin
# of uploads :
1
# of downloads :
79
Origin country :
HU HU
Vendor Threat Intelligence
Malware family:
formbook
ID:
1
File name:
exe
Verdict:
Malicious activity
Analysis date:
2026-05-08 16:41:36 UTC
Tags:
autoit formbook xloader

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Gathering data
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Creating a file in the %temp% directory
Launching a process
Сreating synchronization primitives
Launching cmd.exe command interpreter
Setting browser functions hooks
Unauthorized injection to a system process
Unauthorized injection to a browser process
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
adaptive-context anti-debug autoit barys compiled-script fingerprint keylogger microsoft_visual_cc packed
Verdict:
Malicious
File Type:
exe x32
First seen:
2026-04-09T13:17:00Z UTC
Last seen:
2026-05-09T01:51:00Z UTC
Hits:
~1000
Gathering data
Threat name:
Win32.Trojan.AutoitInject
Status:
Malicious
First seen:
2026-04-11 03:32:21 UTC
File Type:
PE (Exe)
Extracted files:
28
AV detection:
24 of 36 (66.67%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
formbook
Similar samples:
Result
Malware family:
formbook
Score:
  10/10
Tags:
family:formbook campaign:o24a discovery rat spyware stealer trojan
Behaviour
Gathers network information
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Program crash
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Family: Formbook
Formbook payload
Unpacked files
SH256 hash:
ccf1c503dc69c6d217cfd867a4b1ca9e77b5614ede7cd623c8d8f4f4e3177c77
MD5 hash:
f0b8af99c4ba4ef314365a208d3d952f
SHA1 hash:
3a96ac3b33e0ebb58985824fbd9dd6e2183f9236
SH256 hash:
09e8d54f7d01a4bbf7c03ef286cc70a8c6f601f6b8dbb37d7a3b3f33308b21b1
MD5 hash:
f58b0a4110c1cca40b90a256be127072
SHA1 hash:
c2f4e006955e270509fb49f2cc9b8ab16ecd6f91
Detections:
win_formbook_w0 win_formbook_auto win_formbook_g0 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:AutoIT_Compiled
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
Author:DiegoAnalytics
Description:Detects attempts to inject code into another process across PE, ELF, Mach-O binaries
Rule name:DebuggerCheck__API
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerCheck__GlobalFlags
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerCheck__QueryInfo
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerHiding__Active
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerHiding__Thread
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DetectEncryptedVariants
Author:Zinyth
Description:Detects 'encrypted' in ASCII, Unicode, base64, or hex-encoded
Rule name:dgaagas
Author:Harshit
Description:Uses certutil.exe to download a file named test.txt
Rule name:Formbook
Author:JPCERT/CC Incident Response Group
Description:detect Formbook in memory
Reference:internal research
Rule name:golang_bin_JCorn_CSC846
Author:Justin Cornwell
Description:CSC-846 Golang detection ruleset
Rule name:MD5_Constants
Author:phoul (@phoul)
Description:Look for MD5 constants
Rule name:meth_stackstrings
Author:Willi Ballenthin
Rule name:pe_detect_tls_callbacks
Rule name:pe_no_import_table
Description:Detect pe file that no import table
Rule name:RIPEMD160_Constants
Author:phoul (@phoul)
Description:Look for RIPEMD-160 constants
Rule name:SEH__vectored
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:SHA1_Constants
Author:phoul (@phoul)
Description:Look for SHA1 constants
Rule name:TH_AntiVM_MassHunt_Win_Malware_2026_CYFARE
Author:CYFARE
Description:Detects Windows malware employing anti-VM / anti-sandbox evasion techniques across VMware, VirtualBox, Hyper-V, QEMU, Xen, and generic sandbox environments
Reference:https://cyfare.net/
Rule name:TH_Generic_MassHunt_Win_Malware_2025_CYFARE
Author:CYFARE
Description:Generic Windows malware mass-hunt rule - 2025
Reference:https://cyfare.net/
Rule name:TH_Win_ETW_Bypass_2025_CYFARE
Author:CYFARE
Description:Windows ETW Bypass Detection Rule - 2025
Reference:https://cyfare.net/
Rule name:VECT_Ransomware
Author:Mustafa Bakhit
Description:Detects activity associated with VECT ransomware. This includes registry modifications and deletions, execution of system and defense-evasion commands, suspicious API usage, mutex creation, file and memory manipulation, ransomware note generation, anti-debugging and anti-analysis techniques, and embedded cryptographic constants (SHA256) characteristic of this malware family. Designed for threat intelligence and malware detection environments.
Rule name:Windows_Trojan_Formbook
Author:@malgamy12
Rule name:Windows_Trojan_Formbook_1112e116
Author:Elastic Security
Reference:https://www.elastic.co/security-labs/formbook-adopts-cab-less-approach
Rule name:win_formbook_auto
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:Detects win.formbook.
Rule name:win_formbook_w0
Author:@malgamy12

File information


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

Comments