MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 a45a7f64e9b7e7f3a39e623485d9f37d147c53433c6931a6760c6e7233eb66d1. 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
| SHA256 hash: | a45a7f64e9b7e7f3a39e623485d9f37d147c53433c6931a6760c6e7233eb66d1 |
|---|---|
| SHA3-384 hash: | fc481c95bea2b9b06cecd7de53fb692d887ee8039811d18f596922d3f08ed01631be855d8243ea0d6371ee40ec451aab |
| SHA1 hash: | 359d6af821c6d291032bf835121df635b9260da2 |
| MD5 hash: | 7ace36532a8ad276ae6a62a18d7ca703 |
| humanhash: | pip-river-robert-arkansas |
| File name: | a45a7f64e9b7e7f3a39e623485d9f37d147c53433c6931a6760c6e7233eb66d1 |
| Download: | download sample |
| Signature | Formbook |
| File size: | 1'180'672 bytes |
| First seen: | 2025-10-09 14:51:23 UTC |
| Last seen: | Never |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | 91d07a5e22681e70764519ae943a5883 (126 x Formbook, 32 x a310Logger, 27 x AgentTesla) |
| ssdeep | 24576:Ctb20pkaCqT5TBWgNQ7arfRK5HhLmngDAmfhY6A:PVg5tQ7arp0HhagDAUC5 |
| TLSH | T1F745CF1373DD8360C7B26273BA65BB41AEBF782506B1F56B2FD4093DE920122521E673 |
| 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 |  adrian__luca |
| Tags: | exe FormBook |
Intelligence
File Origin
# of uploads :
1
# of downloads :
61
Origin country :
HUVendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
a45a7f64e9b7e7f3a39e623485d9f37d147c53433c6931a6760c6e7233eb66d1
Verdict:
No threats detected
Analysis date:
2025-10-09 21:46:00 UTC
Tags:
n/a
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Formbook
Detection(s):
Verdict:
Malicious
Score:
96.5%
Tags:
autoit emotet
Result
Verdict:
Malware
Maliciousness:
Behaviour
Creating a window
Creating a file in the %temp% directory
Launching a process
Sending a custom TCP request
Сreating synchronization primitives
Unauthorized injection to a system process
Verdict:
Likely Malicious
Threat level:
7.5/10
Confidence:
100%
Tags:
adaptive-context autoit compiled-script fingerprint keylogger microsoft_visual_cc obfuscated packed packed packer_detected
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Verdict:
Malicious
File Type:
exe x32
First seen:
2025-09-23T20:25:00Z UTC
Last seen:
2025-10-09T08:06:00Z UTC
Hits:
~100
Malware family:
Formbook
Verdict:
Malicious
Score:
100%
Verdict:
Malware
File Type:
PE
Verdict:
Malware
YARA:
7 match(es)
Tags:
AutoIt Decompiled Executable PDB Path PE (Portable Executable) PE File Layout Suspect Win 32 Exe x86
Threat name:
Win32.Backdoor.FormBook
Status:
Malicious
First seen:
2025-09-24 00:29:23 UTC
File Type:
PE (Exe)
Extracted files:
28
AV detection:
28 of 36 (77.78%)
Threat level:
5/5
Result
Malware family:
formbook
Score:
10/10
Tags:
family:formbook discovery rat spyware stealer trojan
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Formbook payload
Formbook
Formbook family
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Unpacked files
SH256 hash:
a45a7f64e9b7e7f3a39e623485d9f37d147c53433c6931a6760c6e7233eb66d1
MD5 hash:
7ace36532a8ad276ae6a62a18d7ca703
SHA1 hash:
359d6af821c6d291032bf835121df635b9260da2
SH256 hash:
8c8bf2bf17e42e280780d71773af88f717e47217400746541b5df271166616a8
MD5 hash:
6995692f80caf116f3dcc20baca15814
SHA1 hash:
d0fee9b46ec92e23d814d17eaf54a878e566c9b0
SH256 hash:
b49ec729eedaa87719f83bcc4dd2a24fd6b884a3279176f0dbfa923f061ee8f3
MD5 hash:
a8c1124665d68d41f372309562042890
SHA1 hash:
c3deca1edff315f122fb7a20515aa3972981d56e
Malware family:
FormBook
Verdict:
Malicious
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Formbook
Score:
1.00
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: | golang_bin_JCorn_CSC846 |
|---|---|
| Author: | Justin Cornwell |
| Description: | CSC-846 Golang detection ruleset |
| Rule name: | pe_no_import_table |
|---|---|
| Description: | Detect pe file that no import table |
| Rule name: | shellcode |
|---|---|
| Author: | nex |
| Description: | Matched shellcode byte patterns |
| 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: | YahLover |
|---|---|
| Author: | Kevin Falcoz |
| Description: | YahLover |
File information
The table below shows additional information about this malware sample such as delivery method and external references.
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