MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 1f58eaedefb85d620985c5fc267c05ffa7c4877cbff67763da7ebe2fe540d220. 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: | 1f58eaedefb85d620985c5fc267c05ffa7c4877cbff67763da7ebe2fe540d220 |
|---|---|
| SHA3-384 hash: | 11c1a078c8eabf97423cb4ad1d0004dbf8b12e3f992a97f470294c0e96c88b2ba265a6c5817402c56c105c75940545db |
| SHA1 hash: | af77ea45f50747decb4493a6eb9fd79839a8e49b |
| MD5 hash: | 7ee9c2b7af81d29bfd79030d3962baa9 |
| humanhash: | cola-beryllium-sierra-illinois |
| File name: | 1f58eaedefb85d620985c5fc267c05ffa7c4877cbff67763da7ebe2fe540d220 |
| Download: | download sample |
| Signature | Formbook |
| File size: | 793'608 bytes |
| First seen: | 2025-11-06 10:48:00 UTC |
| Last seen: | Never |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | f34d5f2d4577ed6d9ceec516c1f5a744 (48'844 x AgentTesla, 19'775 x Formbook, 12'297 x SnakeKeylogger) |
| ssdeep | 12288:i8B4gFJR0DI6UHql65w0GtmLCF4QUNQlGUOFqerd1VMks/FT2Cl1VV0OTMfwhkR:izgFJR0DI6IvwUCFwUGVe/FT/Vifz |
| Threatray | 2'240 similar samples on MalwareBazaar |
| TLSH | T10CF402982228DB06DAA16BF88A72F2740BB96DD9F814D30A5FD97DDFB874F004D54243 |
| 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 |  adrian__luca |
| Tags: | exe FormBook |
Intelligence
File Origin
# of uploads :
1
# of downloads :
72
Origin country :
HUVendor Threat Intelligence
Malware family:
formbook
ID:
1
File name:
1f58eaedefb85d620985c5fc267c05ffa7c4877cbff67763da7ebe2fe540d220
Verdict:
Malicious activity
Analysis date:
2025-11-06 15:17:21 UTC
Tags:
formbook xloader
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:
obfusc shell virus
Result
Verdict:
Malware
Maliciousness:
Behaviour
Creating a window
Creating a process with a hidden window
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)
Adding an exclusion to Microsoft Defender
Gathering data
Verdict:
Malicious
Labled as:
Trojan.Generic
Verdict:
Malicious
File Type:
exe x32
First seen:
2025-10-17T05:01:00Z UTC
Last seen:
2025-11-08T06:37:00Z UTC
Hits:
~10000
Malware family:
Formbook
Verdict:
Malicious
Score:
96%
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: 0.45 Win 32 Exe x86
Threat name:
Win32.Backdoor.FormBook
Status:
Malicious
First seen:
2025-10-17 09:01:56 UTC
File Type:
PE (.Net Exe)
Extracted files:
11
AV detection:
26 of 38 (68.42%)
Threat level:
5/5
Detection(s):
Suspicious file
Verdict:
malicious
Label(s):
unc_loader_037
Similar samples:
+ 2'230 additional samples on MalwareBazaar
Result
Malware family:
formbook
Score:
10/10
Tags:
family:formbook discovery execution rat spyware stealer trojan
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Program crash
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Checks computer location settings
Command and Scripting Interpreter: PowerShell
Formbook payload
Formbook
Formbook family
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Unpacked files
SH256 hash:
1f58eaedefb85d620985c5fc267c05ffa7c4877cbff67763da7ebe2fe540d220
MD5 hash:
7ee9c2b7af81d29bfd79030d3962baa9
SHA1 hash:
af77ea45f50747decb4493a6eb9fd79839a8e49b
SH256 hash:
c109be2d5d3d443ae589e1fa451d322c4b43eb11203667db5c73daab4ac76936
MD5 hash:
9aa8e4919021cd5112410762f84b40cf
SHA1 hash:
0c9b9bc922b7347e7edf6c4be8721b15d42bcfe6
SH256 hash:
a2df9936a7fba473f166cac5325728bd87eafd388619a83af5ca2930945daf80
MD5 hash:
5a1e3da1d469ad51d5517c9f78d12c5b
SHA1 hash:
53d7bf044aaa24db09ca8e4df3555d4194927cdd
SH256 hash:
de647066246a06b980a735ca81874ad38408cb53e777a334382b5532cbcacedf
MD5 hash:
dc52dafb226d781f092d8e9c2a3286c7
SHA1 hash:
af88a5388ac0539c273a44313f927e72a0705b3b
Detections:
SUSP_OBF_NET_ConfuserEx_Name_Pattern_Jan24
SUSP_OBF_NET_Reactor_Indicators_Jan24
SH256 hash:
4e247caa6bce726ca29be1d0f447e9bc8c3d8cd70df41e34457d74659439b71d
MD5 hash:
400e3c2597993a6670d65ce3326fcfbf
SHA1 hash:
26077d92ff5151301f3247902680e2adf3b7b8f8
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: | INDICATOR_KB_CERT_7c1118cbbadc95da3752c46e47a27438 |
|---|---|
| Author: | ditekSHen |
| Description: | Detects executables signed with stolen, revoked or invalid certificates |
| Rule name: | NET |
|---|---|
| Author: | malware-lu |
| Rule name: | PE_Digital_Certificate |
|---|---|
| Author: | albertzsigovits |
| Rule name: | pe_imphash |
|---|
| 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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