MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 9b1b95c4aacfc7ac8dd3300424eab82dbc599cd2bc219ca5b2964cf2815805d5. 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: 9
| SHA256 hash: | 9b1b95c4aacfc7ac8dd3300424eab82dbc599cd2bc219ca5b2964cf2815805d5 |
|---|---|
| SHA3-384 hash: | d4e4b43bab2a761f03b8b29a8b2c0fe19381b466a44e39bfa65084435a72d9370d73ba616029afef027a550d59e871e8 |
| SHA1 hash: | e4d9df5f01a47c816ad140661024487161ea3b1a |
| MD5 hash: | aa6570c00f4d39c1580e5772bd8c6cbc |
| humanhash: | three-delaware-avocado-moon |
| File name: | 9b1b95c4aacfc7ac8dd3300424eab82dbc599cd2bc219ca5b2964cf2815805d5 |
| Download: | download sample |
| Signature | Formbook |
| File size: | 317'976 bytes |
| First seen: | 2026-08-10 15:03:20 UTC |
| Last seen: | Never |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | ced282d9b261d1462772017fe2f6972b (129 x Formbook, 124 x GuLoader, 72 x RemcosRAT) |
| ssdeep | 6144:M9X0GN6Bo9PMbSDWUOKMRaEUrEjwT2Eryemwrv7zdFx0GYVpm6iNn:C0MOo9PM+vxEMGwT2EfVdvRdn |
| TLSH | T14064121727B1D81EDA4B19F08C7AEB7D5FB14F0060A6470BDB20BA4E3D73565292E683 |
| TrID | 50.3% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13) 10.6% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2) 10.5% (.EXE) Win64 Executable (generic) (6522/11/2) 8.1% (.EXE) Win16 NE executable (generic) (5038/12/1) 7.2% (.EXE) Win32 Executable (generic) (4504/4/1) |
| Magika | pebin |
| dhash icon | 6270b46692866030 (2 x Formbook, 1 x GuLoader) |
| Reporter |  adrian__luca |
| Tags: | exe FormBook |
Intelligence
File Origin
# of uploads :
1
# of downloads :
145
Origin country :
HUVendor Threat Intelligence
Malware configuration found for:
NSIS
Details
Gathering data
Result
Verdict:
Clean
Maliciousness:
Behaviour
Creating a window
Creating a file in the %temp% subdirectories
Searching for the window
Creating a file
Delayed reading of the file
Deleting a recently created file
Unauthorized injection to a recently created process
Restart of the analyzed sample
Verdict:
Likely Malicious
Threat level:
7.5/10
Confidence:
100%
Tags:
adaptive-context anti-debug installer installer installer-heuristic microsoft_visual_cc nsis packed reconnaissance signed
Verdict:
Malicious
File Type:
exe x32
First seen:
2026-07-30T02:55:00Z UTC
Last seen:
2026-08-10T11:57:00Z UTC
Hits:
~1000
Gathering data
Score:
91%
Verdict:
Malware
File Type:
PE
Gathering data
Threat name:
Win32.Trojan.Generic
Status:
Suspicious
First seen:
2026-07-30 14:51:21 UTC
AV detection:
14 of 38 (36.84%)
Threat level:
5/5
Detection(s):
Suspicious file
Result
Malware family:
formbook
Score:
10/10
Tags:
family:formbook discovery installer rat spyware stealer trojan
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Program crash
System Location Discovery: System Language Discovery
Suspicious use of NtCreateThreadExHideFromDebugger
Suspicious use of NtSetInformationThreadHideFromDebugger
Contacts third-party web service commonly abused for C2
Loads dropped DLL
Family: Formbook
Formbook payload
Unpacked files
SH256 hash:
9b1b95c4aacfc7ac8dd3300424eab82dbc599cd2bc219ca5b2964cf2815805d5
MD5 hash:
aa6570c00f4d39c1580e5772bd8c6cbc
SHA1 hash:
e4d9df5f01a47c816ad140661024487161ea3b1a
SH256 hash:
269d232712c86983336badb40b9e55e80052d8389ed095ebf9214964d43b6bb1
MD5 hash:
34442e1e0c2870341df55e1b7b3cccdc
SHA1 hash:
99b2fa21aead4b6ccd8ff2f6d3d3453a51d9c70c
SH256 hash:
e664756ea6bfb01787ee6dfe299f1e1cc52b0453759771124c9359cb3cf79cb4
MD5 hash:
602d953c391a05d2be162a661962c598
SHA1 hash:
794b83002517dca3a017337946d39df55646e3e0
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: | DebuggerCheck__API |
|---|---|
| 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: | FormhookB |
|---|---|
| Author: | kevoreilly |
| Description: | Formbook Anti-hook Bypass |
| Rule name: | golang_bin_JCorn_CSC846 |
|---|---|
| Author: | Justin Cornwell |
| Description: | CSC-846 Golang detection ruleset |
| Rule name: | Ins_NSIS_Buer_Nov_2020_1 |
|---|---|
| Author: | Arkbird_SOLG |
| Description: | Detect NSIS installer used for Buer loader |
| Rule name: | NSIS |
|---|---|
| Author: | kevoreilly |
| Description: | NSIS Integrity Check function |
| Rule name: | pe_detect_tls_callbacks |
|---|
| Rule name: | PE_Digital_Certificate |
|---|---|
| Author: | albertzsigovits |
| Rule name: | Sus_CMD_Powershell_Usage |
|---|---|
| Author: | XiAnzheng |
| Description: | May Contain(Obfuscated or no) Powershell or CMD Command that can be abused by threat actor(can create FP) |
| Rule name: | telebot_framework |
|---|---|
| Author: | vietdx.mb |
| 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_FakeInstaller_PythonShellcodeLoader_Crepectl_2026 |
|---|---|
| Author: | SixHands |
| Description: | Detects the analyzed fake installer sample using .key config, XOR key, and Python/fiber shellcode loader traits |
File information
The table below shows additional information about this malware sample such as delivery method and external references.
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