MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 5ca1cd75c510adff5ec4d592556594d86db181dc1e6bb3b8bc5cb98c70708921. 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: 19
| SHA256 hash: | 5ca1cd75c510adff5ec4d592556594d86db181dc1e6bb3b8bc5cb98c70708921 |
|---|---|
| SHA3-384 hash: | d3292a88bf76a4b2eae71b1a3c9ee7aa00c693642a060c079ab597d14aaa71bd724e46792fa0cddaa7c927b5ad55c6bf |
| SHA1 hash: | d8f96192987675cfceb353ee40ea9788dc7dc290 |
| MD5 hash: | a35ae5065bea3ac9e87a5d4db8aa584e |
| humanhash: | seven-october-zulu-louisiana |
| File name: | 7755591297776.img.exe |
| Download: | download sample |
| Signature | Formbook |
| File size: | 1'221'120 bytes |
| First seen: | 2025-11-26 01:18:36 UTC |
| Last seen: | Never |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | 1895460fffad9475fda0c84755ecfee1 (341 x Formbook, 89 x AgentTesla, 56 x a310Logger) |
| ssdeep | 24576:G5EmXFtKaL4/oFe5T9yyXYfP1ijXdagek/2f97RvgjKiXw:GPVt/LZeJbInQRagek/21qm |
| TLSH | T18045BF0273D1D062FFAB92334B5AF6115BBC79260123AA2F13981D79BD701B1563E7A3 |
| 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 |  threatcat_ch |
| Tags: | exe FormBook |
Intelligence
File Origin
# of uploads :
1
# of downloads :
153
Origin country :
CHVendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
7755591297776.img.exe
Verdict:
Malicious activity
Analysis date:
2025-11-26 01:19:43 UTC
Tags:
auto-startup
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Formbook
Detection(s):
Verdict:
Malicious
Score:
97.4%
Tags:
autorun autoit emotet
Result
Verdict:
Malware
Maliciousness:
Behaviour
Creating a window
Creating a file in the %temp% directory
Creating a file
Creating a process from a recently created file
Launching a process
DNS request
Сreating synchronization primitives
Enabling autorun by creating a file
Unauthorized injection to a system process
Verdict:
Likely Malicious
Threat level:
7.5/10
Confidence:
100%
Tags:
adaptive-context anti-debug autoit compiled-script fingerprint keylogger masquerade microsoft_visual_cc packed
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Verdict:
Malicious
File Type:
exe x32
First seen:
2025-11-25T20:49:00Z UTC
Last seen:
2025-11-27T09:44:00Z UTC
Hits:
~1000
Detections:
Trojan.Win32.Agent.sb Trojan-Banker.Win32.ClipBanker.sb Trojan.Win32.Auzenpak.sb Trojan-Spy.Win32.Noon.bofz PDM:Trojan.Win32.Generic Backdoor.Agent.HTTP.C&C Trojan-Spy.Win32.Noon.sb Trojan-PSW.Win32.Stealer.sb Trojan.Win32.Zenpak.sb Trojan.Win32.Strab.sb Trojan.Win32.Inject.sb Trojan-Spy.Noon.HTTP.ServerRequest Trojan-Dropper.Win32.Dorifel.sbd
Verdict:
Malicious
Result
Threat name:
FormBook
Detection:
malicious
Classification:
troj.spyw.expl.evad
Score:
100 / 100
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Antivirus detection for URL or domain
Binary is likely a compiled AutoIt script file
Drops VBS files to the startup folder
Found API chain indicative of sandbox detection
Joe Sandbox ML detected suspicious sample
Maps a DLL or memory area into another process
Modifies the context of a thread in another process (thread injection)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Performs DNS queries to domains with low reputation
Queues an APC in another process (thread injection)
Sigma detected: Drops script at startup location
Sigma detected: WScript or CScript Dropper
Switches to a custom stack to bypass stack traces
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Unusual module load detection (module proxying)
Windows Scripting host queries suspicious COM object (likely to drop second stage)
Writes to foreign memory regions
Yara detected FormBook
Behaviour
Behavior Graph:
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
Verdict:
Malicious
Threat:
Family.FORMBOOK
Threat name:
Win32.Malware.Heuristic
Status:
Malicious
First seen:
2025-11-26 00:36:47 UTC
File Type:
PE (Exe)
Extracted files:
28
AV detection:
18 of 24 (75.00%)
Threat level:
2/5
Detection(s):
Malicious file
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
Program crash
System Location Discovery: System Language Discovery
AutoIT Executable
Suspicious use of SetThreadContext
Drops startup file
Executes dropped EXE
Formbook payload
Formbook
Formbook family
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Unpacked files
SH256 hash:
5ca1cd75c510adff5ec4d592556594d86db181dc1e6bb3b8bc5cb98c70708921
MD5 hash:
a35ae5065bea3ac9e87a5d4db8aa584e
SHA1 hash:
d8f96192987675cfceb353ee40ea9788dc7dc290
SH256 hash:
7ac112d7ebdbf4909fe443d4fe83318783d2662b32aed740b9bfb015e51c9c4a
MD5 hash:
947849f49f0cbf58642c172c8de2b0c9
SHA1 hash:
d4eb0baecd79320e1bac6017157e903cacd22a73
SH256 hash:
4199a13d5f6a5a4f9be82ec4b81404d44ec05a89f4155eb3c3366f06561dc941
MD5 hash:
4d52fc8c55eeeb67efe6e1d222d523a3
SHA1 hash:
46624dceaa72b98fe5622519904f0b154978fd45
Detections:
win_formbook_g0
Malware family:
FormBook
Verdict:
Malicious
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
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: | Formbook |
|---|---|
| Author: | kevoreilly |
| Description: | Formbook Payload |
| Rule name: | golang_bin_JCorn_CSC846 |
|---|---|
| Author: | Justin Cornwell |
| Description: | CSC-846 Golang detection ruleset |
| 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: | SHA1_Constants |
|---|---|
| Author: | phoul (@phoul) |
| Description: | Look for SHA1 constants |
| 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/ |
File information
The table below shows additional information about this malware sample such as delivery method and external references.
Malspam
Delivery method
Distributed via e-mail attachment
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