MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 5f9b01b88c7faf63239a79405c1f7c5521b9cfd1934c659a8c56345ad1549d17. 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: | 5f9b01b88c7faf63239a79405c1f7c5521b9cfd1934c659a8c56345ad1549d17 |
|---|---|
| SHA3-384 hash: | bc7a87578eec36707e6f37775800986c4a028358fc03f8815b9082526218833e52c683a58a74ddc0e441aa6cd6c0df61 |
| SHA1 hash: | c52457cf9bbb53841abc1b291d7dbf01a70d58d9 |
| MD5 hash: | 763f68a401d716378a6a55afef4b85c4 |
| humanhash: | fanta-vegan-oranges-robin |
| File name: | Documents-00003899909.exe |
| Download: | download sample |
| Signature | Formbook |
| File size: | 822'784 bytes |
| First seen: | 2025-09-26 16:10:33 UTC |
| Last seen: | Never |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | f34d5f2d4577ed6d9ceec516c1f5a744 (48'666 x AgentTesla, 19'479 x Formbook, 12'209 x SnakeKeylogger) |
| ssdeep | 12288:mMrXaa8X8N3MG5PSzDSgIW/BmjHLxS1dne5NcM7rmoQnqzh7u:Laa8X8VPSztIZZate4QUqF |
| Threatray | 1'508 similar samples on MalwareBazaar |
| TLSH | T11205020433E9EB06D4BB47F40570D3B54B7A6E987512E30A8EE6ACDF3C3AB411A09657 |
| TrID | 71.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13) 10.2% (.EXE) Win64 Executable (generic) (10522/11/4) 6.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2) 4.3% (.EXE) Win32 Executable (generic) (4504/4/1) 2.0% (.ICL) Windows Icons Library (generic) (2059/9) |
| Magika | pebin |
| Reporter | Anonymous |
| Tags: | exe FormBook |
Intelligence
File Origin
# of uploads :
1
# of downloads :
116
Origin country :
USVendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Documents-00003899909.exe
Verdict:
No threats detected
Analysis date:
2025-09-26 16:14:00 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:
93.3%
Tags:
virus
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
Verdict:
Suspicious
Threat level:
5/10
Confidence:
100%
Tags:
obfuscated packed packed packer_detected
Verdict:
Malicious
Labled as:
Trojan.Generic
Verdict:
Malicious
File Type:
exe x32
First seen:
2025-09-24T11:55:00Z UTC
Last seen:
2025-09-24T11:55:00Z UTC
Hits:
~100
Detections:
Trojan-Spy.Win32.Noon.sb Trojan.MSIL.Taskun.sb Trojan.MSIL.Inject.sb Trojan.MSIL.Crypt.sb HEUR:Trojan.MSIL.Taskun.gen VHO:Backdoor.Win32.Agent.gen Trojan-PSW.Win32.Stealer.sb PDM:Trojan.Win32.Generic Trojan-Spy.Noon.HTTP.ServerRequest HEUR:Trojan.MSIL.Agent.gen Backdoor.Agent.HTTP.C&C
Verdict:
Malicious
Score:
99%
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: 0.16 Win 32 Exe x86
Verdict:
Malicious
Threat:
Family.FORMBOOK
Threat name:
ByteCode-MSIL.Spyware.Negasteal
Status:
Malicious
First seen:
2025-09-24 11:41:07 UTC
File Type:
PE (.Net Exe)
Extracted files:
33
AV detection:
27 of 36 (75.00%)
Threat level:
2/5
Detection(s):
Suspicious file
Verdict:
malicious
Label(s):
formbook
unc_loader_037
Similar samples:
+ 1'498 additional samples on MalwareBazaar
Result
Malware family:
formbook
Score:
10/10
Tags:
family:formbook discovery rat spyware stealer trojan
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
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:
5f9b01b88c7faf63239a79405c1f7c5521b9cfd1934c659a8c56345ad1549d17
MD5 hash:
763f68a401d716378a6a55afef4b85c4
SHA1 hash:
c52457cf9bbb53841abc1b291d7dbf01a70d58d9
SH256 hash:
feedb7303826398294857da13e3fe35025bfcccfd46db52676ab09c66de557e1
MD5 hash:
dccc4ed75acf20968a8bfaacb543fafa
SHA1 hash:
19c09155ce56b607c3e908b9cb84d471cb9e5bb4
Detections:
SUSP_OBF_NET_ConfuserEx_Name_Pattern_Jan24
SUSP_OBF_NET_Reactor_Indicators_Jan24
SH256 hash:
7c9057b64be09cc21e5df9b997b2aca6464b79b804fcab4eee7848cda8225d4a
MD5 hash:
910707ba0ca2796879872c67488df2e8
SHA1 hash:
58908fcde2802d0ac3c31789b7008b63f734a8b4
SH256 hash:
cdb8ac92c7a341ee1ead563bf7b48a244d580acfb30704043b6d4b24ea5ccf09
MD5 hash:
07ca79c30cd50df8c68d115eebd52475
SHA1 hash:
a70c058086cd6156059b9947aee5bcd3f75f3336
SH256 hash:
fc9c54b98aec7168e62c5664a5d33560019251eb4671d4ccd6214030fb2160d1
MD5 hash:
fef0eb0bc2f23c169ca4b2dc5860eab9
SHA1 hash:
dd6aa6478d3dfcc686c32c5c2c82b0ec1471dfe4
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: | 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: | NET |
|---|---|
| Author: | malware-lu |
| Rule name: | pe_imphash |
|---|
| Rule name: | pe_no_import_table |
|---|---|
| Description: | Detect pe file that no import table |
| Rule name: | shellcode |
|---|---|
| Author: | nex |
| Description: | Matched shellcode byte patterns |
| Rule name: | Skystars_Malware_Imphash |
|---|---|
| Author: | Skystars LightDefender |
| Description: | imphash |
File information
The table below shows additional information about this malware sample such as delivery method and external references.
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