MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 04f528f97ccd2a733a5622ca5e919a5b90facfe6128e717babbf9cb10327f185. 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: 17
| SHA256 hash: | 04f528f97ccd2a733a5622ca5e919a5b90facfe6128e717babbf9cb10327f185 |
|---|---|
| SHA3-384 hash: | 5b359a891de8382e1bbc71a92b62f47a58e73a4412e9436ee96f12371ee9cad305af528056343ecd96b522c769ec8558 |
| SHA1 hash: | 07961465827a076bc6c808f5cb7b14d9efec16d1 |
| MD5 hash: | 6c67d6c5082cbbbd4260596924768312 |
| humanhash: | six-mike-stream-jersey |
| File name: | 04f528f97ccd2a733a5622ca5e919a5b90facfe6128e717babbf9cb10327f185 |
| Download: | download sample |
| Signature | Formbook |
| File size: | 1'127'936 bytes |
| First seen: | 2026-10-19 07:47:35 UTC |
| Last seen: | Never |
| File type: |  exe |
| MIME type: | application/vnd.microsoft.portable-executable |
| imphash | f34d5f2d4577ed6d9ceec516c1f5a744 (49'364 x AgentTesla, 20'869 x Formbook, 12'418 x SnakeKeylogger) |
| ssdeep | 24576:dTO1mM/MH6K0lOXdqz1AGeHapKIo/JkQq8UQc5GPGHo:lOIOMHGlONGReHiF0T4Q+o |
| TLSH | T1DC35E03C15274102D9F16EF05EB1A1F4AB256CA5B139E0295FE20DFBB6772067D8232B |
| TrID | 73.9% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13) 6.6% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2) 6.6% (.EXE) Win64 Executable (generic) (6522/11/2) 4.5% (.EXE) Win32 Executable (generic) (4504/4/1) 2.0% (.ICL) Windows Icons Library (generic) (2059/9) |
| Magika | pebin |
| dhash icon | d0fc96e8f8ece4e4 (3 x Formbook, 1 x AsyncRAT) |
| Reporter |  adrian__luca |
| Tags: | exe FormBook |
Intelligence
File Origin
# of uploads :
1
# of downloads :
102
Origin country :
HUVendor Threat Intelligence
Malware configuration found for:
RoboSki
Details
Malware family:
n/a
ID:
1
File name:
exe
Verdict:
Malicious activity
Analysis date:
2026-10-19 10:51:59 UTC
Tags:
n/a
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Formbook
Verdict:
Malicious
Score:
99.1%
Tags:
virus micro msil
Result
Verdict:
Malware
Maliciousness:
Behaviour
Creating a window
Sending a custom TCP request
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
Searching for synchronization primitives
Launching the default Windows debugger (dwwin.exe)
Blocking the Windows Defender launch
Gathering data
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Verdict:
Malicious
File Type:
exe x32
First seen:
2026-09-03T00:29:00Z UTC
Last seen:
2026-10-20T22:23:00Z UTC
Hits:
~100
Malware family:
Formbook
Verdict:
Malicious
Score:
100%
Verdict:
Malware
File Type:
PE
Verdict:
inconclusive
YARA:
10 match(es)
Tags:
.Net Executable Managed .NET PDB Path PE (Portable Executable) PE File Layout SOS: 0.41 Win 32 Exe x86
Threat name:
ByteCode-MSIL.Spyware.Negasteal
Status:
Malicious
First seen:
2026-09-03 05:00:03 UTC
File Type:
PE (.Net Exe)
Extracted files:
12
AV detection:
27 of 36 (75.00%)
Threat level:
2/5
Detection(s):
Suspicious file
Verdict:
malicious
Label(s):
Formbook
Result
Malware family:
formbook
Score:
10/10
Tags:
family:formbook discovery evasion rat spyware stealer trojan
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Program crash
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Family: Formbook
Formbook payload
Modifies Windows Defender DisableAntiSpyware settings
Unpacked files
SH256 hash:
04f528f97ccd2a733a5622ca5e919a5b90facfe6128e717babbf9cb10327f185
MD5 hash:
6c67d6c5082cbbbd4260596924768312
SHA1 hash:
07961465827a076bc6c808f5cb7b14d9efec16d1
SH256 hash:
554e55d57d26e1287d628c11bb6ab02826eb4defa62bdba3f89502139d0d315b
MD5 hash:
158918e404cd976ba2c61852ffa98519
SHA1 hash:
05902d24b042fab21b031ae038fbfb3592574862
Detections:
SUSP_OBF_NET_ConfuserEx_Name_Pattern_Jan24
SH256 hash:
ec87575f439a41adac809624949bc16b13dbbb8a6afd8010a77fa04293ae4cc7
MD5 hash:
f020fcf7e7d48f39be8900afcdf04b90
SHA1 hash:
7dfe96c8d8ff77887811bb1d52e7f98f30396754
SH256 hash:
0aca3c39b8c20307b95837586d3c02a49b22613ca19469819af9716a066f6eb0
MD5 hash:
1f47e045ae948e114c740b5f31d40ca5
SHA1 hash:
eff74fa9390241d126ce837d3cf2a6fe21142e32
Malware family:
FormBook
Verdict:
Malicious
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.65
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: | HUNT_NET_Loader_ImagePixel_To_AssemblyLoad |
|---|---|
| Author: | Anish Bogati |
| Description: | Hunting: .NET loader that reads pixel data from an embedded image, loads it as a .NET assembly, and runs it via reflection or late binding. Catches bitmap-steganography loaders. |
| Rule name: | NET |
|---|---|
| Author: | malware-lu |
| Rule name: | NETexecutableMicrosoft |
|---|---|
| Author: | malware-lu |
| Rule name: | pe_imphash |
|---|
| Rule name: | Skystars_Malware_Imphash |
|---|---|
| Author: | Skystars LightDefender |
| Description: | imphash |
| 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_Malware_Derialock_ForgeAuto_3127f957_Extrait |
|---|---|
| Author: | Marjoriefort |
| Description: | Detects Derialock (pe, etat extrait) |
| Rule name: | WIN_Malware_Unknown_ForgeAuto_6717780a_Extrait |
|---|---|
| Author: | Marjoriefort |
| Description: | Detects Unknown (pe, etat extrait) |
| Rule name: | WIN_Malware_XWorm_ForgeAuto_6b06c990_Extrait |
|---|---|
| Author: | Marjoriefort |
| Description: | Detects XWorm (pe, etat extrait) |
| Rule name: | WIN_Sample_Unique_69354b41 |
|---|---|
| Author: | Marjoriefort |
| Description: | Specimen unique (soumission Bazaar) - strings distinctifs propres au sample |
| Reference: | 69354b41e10daf03d3f3af881b32d5c0fec56b1cfe96629fd4c5263413a42854.exe |
File information
The table below shows additional information about this malware sample such as delivery method and external references.
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