MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 6a552490f5fe075731262f257c9d49392da0534935d28492bcb8a3d8fa41bb0d. 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
| SHA256 hash: | 6a552490f5fe075731262f257c9d49392da0534935d28492bcb8a3d8fa41bb0d |
|---|---|
| SHA3-384 hash: | 6d13486db0f92bf8f5af61ac550419224e31f3417dbe4101c13c288311a583715d5082dc6354c0abddc6a2613b59743f |
| SHA1 hash: | 90d4c8403404152749edd7dd53b4e1be938917ef |
| MD5 hash: | ac78fdb1f2534257ee8ae90b6b72d18e |
| humanhash: | spaghetti-mirror-iowa-king |
| File name: | NF 284 DRAFT.exe |
| Download: | download sample |
| Signature | Formbook |
| File size: | 1'235'456 bytes |
| First seen: | 2025-09-30 10:10:20 UTC |
| Last seen: | 2025-10-09 18:00:13 UTC |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | 1895460fffad9475fda0c84755ecfee1 (306 x Formbook, 52 x AgentTesla, 36 x SnakeKeylogger) |
| ssdeep | 24576:a5EmXFtKaL4/oFe5T9yyXYfP1ijXdaLB604XXfgbMGheO6s0CKDt:aPVt/LZeJbInQRaLKG0O6sZK |
| Threatray | 1'756 similar samples on MalwareBazaar |
| TLSH | T1C145BF027381D062FFAB96334F5AF6115BBC79260123A62F13981D79BE701B1563E7A3 |
| 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 |  cocaman |
| Tags: | exe FormBook |
Intelligence
File Origin
# of uploads :
8
# of downloads :
106
Origin country :
CHVendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
6a552490f5fe075731262f257c9d49392da0534935d28492bcb8a3d8fa41bb0d.exe
Verdict:
No threats detected
Analysis date:
2025-09-30 10:52:42 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:
81.4%
Tags:
autoit emotet
Result
Verdict:
Malware
Maliciousness:
Behaviour
Creating a window
Creating a file in the %temp% directory
Launching a process
Сreating synchronization primitives
Sending a custom TCP request
Unauthorized injection to a system process
Verdict:
Likely Malicious
Threat level:
7.5/10
Confidence:
100%
Tags:
adaptive-context autoit compiled-script evasive fingerprint fingerprint keylogger lolbin microsoft_visual_cc netsh obfuscated packed packed packer_detected reg threat
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Verdict:
Malicious
File Type:
exe x32
First seen:
2025-09-29T22:54:00Z UTC
Last seen:
2025-10-02T08:33:00Z UTC
Hits:
~10000
Detections:
HEUR:Trojan.Script.AUO.gen Trojan-Spy.Noon.HTTP.ServerRequest Trojan.Win32.Zenpak.sb PDM:Trojan.Win32.Generic Trojan-Spy.Win32.Noon.sb Trojan.Win32.Strab.sb Trojan.Win32.Inject.sb
Malware family:
Formbook
Verdict:
Malicious
Result
Threat name:
FormBook
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
Binary is likely a compiled AutoIt script file
Malicious sample detected (through community Yara rule)
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 submitted file
Performs DNS queries to domains with low reputation
Queues an APC in another process (thread injection)
Suricata IDS alerts for network traffic
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)
Writes to foreign memory regions
Yara detected FormBook
Behaviour
Behavior Graph:
Score:
100%
Verdict:
Malware
File Type:
PE
Gathering data
Verdict:
Malicious
Threat:
Family.FORMBOOK
Threat name:
Win32.Trojan.AutoitInject
Status:
Malicious
First seen:
2025-09-30 03:37:33 UTC
File Type:
PE (Exe)
Extracted files:
28
AV detection:
30 of 38 (78.95%)
Threat level:
5/5
Detection(s):
Suspicious file
Verdict:
malicious
Label(s):
formbook
Similar samples:
+ 1'746 additional samples on MalwareBazaar
Result
Malware family:
formbook
Score:
10/10
Tags:
family:formbook adware discovery rat spyware stealer trojan
Behaviour
Modifies Internet Explorer settings
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of UnmapMainImage
Suspicious use of WriteProcessMemory
Program crash
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:
6a552490f5fe075731262f257c9d49392da0534935d28492bcb8a3d8fa41bb0d
MD5 hash:
ac78fdb1f2534257ee8ae90b6b72d18e
SHA1 hash:
90d4c8403404152749edd7dd53b4e1be938917ef
SH256 hash:
95d4e6d867da09d9fb2302ef94d540644204068b149018da9258cc36397ffbd2
MD5 hash:
136616fdb1e67935a6142086452e8eef
SHA1 hash:
c14840db3410d29d1a16822b917dacf1860b98eb
SH256 hash:
b44d6f57aeb656f27afc88f54c97c618d4daa697ee27c10e1887dcb5dd83eea0
MD5 hash:
c3735d448f0d4d3db6fe20d7ad033c84
SHA1 hash:
2edfaa0ec53b3c5459a40bd9d772b25bc6ce4e49
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_AllMal_Detector |
|---|---|
| Author: | DiegoAnalytics |
| Description: | CrossPlatform All Malwares Detector: Detect PE, ELF, Mach-O, scripts, archives; overlay, obfuscation, encryption, spoofing, hiding, high entropy, network communication |
| 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: | 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: | 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: | 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: | Windows_Generic_Threat_aeaeb5cf |
|---|---|
| Author: | Elastic Security |
File information
The table below shows additional information about this malware sample such as delivery method and external references.
Malspam
Delivery method
Other
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