MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 b694fe8d08c38605ecc975d1d6be0e9fab6c57876f6d92158d43b41ee4e7f688. 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: 13
| SHA256 hash: | b694fe8d08c38605ecc975d1d6be0e9fab6c57876f6d92158d43b41ee4e7f688 |
|---|---|
| SHA3-384 hash: | 3fcc40f53194597c76d6c9a20961a4368a23d45bc985ff9f9cf6cdb01ad9a6d1a7d9987ae1d201d7e8710afda5c0c185 |
| SHA1 hash: | ef75041e3389ceca719d6c3fee8b14dca9b49f94 |
| MD5 hash: | e3775516868eeaeb0d3a5d457bd4f1e0 |
| humanhash: | bluebird-leopard-montana-bluebird |
| File name: | b694fe8d08c38605ecc975d1d6be0e9fab6c57876f6d92158d43b41ee4e7f688 |
| Download: | download sample |
| Signature | Formbook |
| File size: | 798'728 bytes |
| First seen: | 2026-11-06 14:37:21 UTC |
| Last seen: | 2026-11-06 14:46:34 UTC |
| File type: |  exe |
| MIME type: | application/vnd.microsoft.portable-executable |
| imphash | 9be4f90f50c714bc00cc8beb2e137299 (19 x Formbook, 9 x RemcosRAT, 3 x ValleyRAT) |
| ssdeep | 12288:P/sfaDQIJa3+YlSJtreQSV8Nj4ziMTQgMnmVvq0AOYAs1EpkffExWYGI2ZMPAw5y:PEyDNJy+D+V8NkzLa0qAo1IkfRQcV |
| TLSH | T198051205EA9698EDC1FAC5708AB69672E4267CD8402C672F87187E5F7D71DB0D81A303 |
| TrID | 33.1% (.EXE) Win64 Executable (generic) (6522/11/2) 25.6% (.EXE) Win16 NE executable (generic) (5038/12/1) 10.4% (.ICL) Windows Icons Library (generic) (2059/9) 10.3% (.EXE) OS/2 Executable (generic) (2029/13) 10.1% (.EXE) Generic Win/DOS Executable (2002/3) |
| Magika | pebin |
| dhash icon | d022d8c8f28f80c0 (44 x GuLoader, 13 x Formbook, 12 x VIPKeylogger) |
| Reporter |  adrian__luca |
| Tags: | exe FormBook signed |
Code Signing Certificate
| Organisation: | Backstitching |
|---|---|
| Issuer: | Backstitching |
| Algorithm: | sha256WithRSAEncryption |
| Valid from: | 2026-09-29T04:13:07Z |
| Valid to: | 2027-09-29T04:13:07Z |
| Serial number: | 09ac7557e4ee88649756a860d8aa5aef379412ac |
| Thumbprint Algorithm: | SHA256 |
| Thumbprint: | 06c6f7fc05fcae182d0ac49afa3baeaef1f473367d2e0951255096cd7a9a9154 |
| Source: | This information was brought to you by ReversingLabs A1000 Malware Analysis Platform |
Intelligence
File Origin
# of uploads :
2
# of downloads :
81
Origin country :
HUVendor Threat Intelligence
Malware configuration found for:
NSIS
Details
Malware family:
n/a
ID:
1
File name:
exe
Verdict:
Malicious activity
Analysis date:
2026-11-06 16:08:50 UTC
Tags:
n/a
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Verdict:
Malicious
Score:
99.1%
Tags:
injection particula virus
Result
Verdict:
Malware
Maliciousness:
Behaviour
Creating a window
Creating a file
Delayed reading of the file
Creating a file in the %temp% directory
Unauthorized injection to a recently created process
Restart of the analyzed sample
DNS request
Connection attempt
Sending a custom TCP request
Sending an HTTP GET request
Creating synchronization primitives
Unauthorized injection to a system process
Gathering data
Verdict:
Malicious
File Type:
exe x64
First seen:
2026-10-01T03:35:00Z UTC
Last seen:
2026-11-04T18:25:00Z UTC
Hits:
~1000
Verdict:
Unknown
Result
Threat name:
FormBook
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
AI detected suspicious PE / MSI digital signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for URL or domain
Creates a thread in another existing process (thread injection)
Found direct / indirect Syscall (likely to bypass EDR)
Hides threads from debuggers
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
Queues an APC in another process (thread injection)
Sigma detected: Rundll32 Execution Without CommandLine Parameters
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)
Unusual module load detection (module proxying)
Yara detected FormBook
Behaviour
Behavior Graph:
Verdict:
inconclusive
YARA:
5 match(es)
Tags:
Executable NSIS Installer PE (Portable Executable) PE File Layout Win 64 Exe x64
Threat name:
Win64.Trojan.GuLoader
Status:
Malicious
First seen:
2026-10-01 06:35:15 UTC
File Type:
PE+ (Exe)
Extracted files:
14
AV detection:
23 of 38 (60.53%)
Threat level:
5/5
Detection(s):
Suspicious file
Result
Malware family:
n/a
Score:
7/10
Tags:
defense_evasion discovery privilege_escalation
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Reads the TCP/IP host and domain name from the registry
Drops file in Windows directory
Suspicious use of NtSetInformationThreadHideFromDebugger
Contacts third-party web service commonly abused for C2
Loads dropped DLL
Malware Family:
n/a
Verdict:
Malicious
Tags:
invalid_signature evasion
YARA:
win_token
Malware Family:
nsis
Malicious:
True
Tags:
64bits invalid-signature overlay signed
Unpacked files
SH256 hash:
b694fe8d08c38605ecc975d1d6be0e9fab6c57876f6d92158d43b41ee4e7f688
MD5 hash:
e3775516868eeaeb0d3a5d457bd4f1e0
SHA1 hash:
ef75041e3389ceca719d6c3fee8b14dca9b49f94
SH256 hash:
33b570d86c4aac8c6785944f9b2992dc3eccc99e35c20ab79d81917bbef35622
MD5 hash:
7f6837692e4c3ee810fe8302b7e0db99
SHA1 hash:
2dff99100da9588dd828fc4436a82d0b1a9f1354
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: | Detect_NSIS_Nullsoft_Installer |
|---|---|
| Author: | Obscurity Labs LLC |
| Description: | Detects NSIS installers by .ndata section + NSIS header string |
| Rule name: | exploit_any_poppopret |
|---|---|
| Author: | Jeff White [karttoon@gmail.com] @noottrak |
| Description: | Identify POP -> POP -> RET opcodes for quick ROP Gadget creation in target binaries. |
| Rule name: | PE_Digital_Certificate |
|---|---|
| Author: | albertzsigovits |
| 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: | 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: | Win_Clipboard_Clipper_Thengavar |
|---|---|
| Author: | Thengavar |
| Description: | Detects malware manipulating the Windows clipboard for clipping or crypto stealing attacks |
| Rule name: | WIN_Malware_Formbook_ForgeAuto_dc5021a0 |
|---|---|
| Author: | Marjoriefort |
| Description: | Detects Formbook (pe, etat binaire) |
File information
The table below shows additional information about this malware sample such as delivery method and external references.
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