MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 f5a2fcb5abc2713669bc271014e04c42c4e1019471616645ecacf791d53a3545. 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: | f5a2fcb5abc2713669bc271014e04c42c4e1019471616645ecacf791d53a3545 |
|---|---|
| SHA3-384 hash: | 0f1b7af3d98a6f614fc9105f1b2949d92113ba487da20397cab82ff6d7b76625bd90a510fd26e594dc9309b5bc99e53d |
| SHA1 hash: | 5fe4068e6d5a3b44802b9610e09e021fd4eaec1c |
| MD5 hash: | d47cb6028af39d4ff012c5cd5198511e |
| humanhash: | december-blue-march-river |
| File name: | f5a2fcb5abc2713669bc271014e04c42c4e1019471616645ecacf791d53a3545 |
| Download: | download sample |
| Signature | Formbook |
| File size: | 778'240 bytes |
| First seen: | 2025-11-06 10:47:13 UTC |
| Last seen: | Never |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'599 x Formbook, 12'241 x SnakeKeylogger) |
| ssdeep | 12288:Dg0OTMfwmKZC4apJbxKSNKZawYFaPSqzTneNsQanQ2Fzp/mulMrGyFpIf:DxfIEpdxKSnzQbeNsQmXdxlMrGhf |
| Threatray | 2'214 similar samples on MalwareBazaar |
| TLSH | T182F41254366AE706C9A027F85931E2B403BD2D9CA812C31B5FD67EEFB87AF048C54653 |
| 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 :
66
Origin country :
HUVendor Threat Intelligence
Malware family:
formbook
ID:
1
File name:
_12293e754ec629673181d4c8f56d5bade523507922450161b45bed3d39cf4216.rar
Verdict:
Malicious activity
Analysis date:
2025-10-17 09:42:20 UTC
Tags:
arch-exec auto-sch-xml formbook xloader stealer
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Formbook
Verdict:
Malicious
Score:
94.9%
Tags:
stration spawn shell
Result
Verdict:
Malware
Maliciousness:
Behaviour
Creating a window
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
Creating a process with a hidden window
Creating a file in the %temp% directory
Launching a process
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
Enabling autorun by creating a file
Gathering data
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Verdict:
Malicious
File Type:
exe x32
First seen:
2025-10-17T04:51:00Z UTC
Last seen:
2025-11-08T00:11:00Z UTC
Hits:
~1000
Malware family:
Formbook
Verdict:
Malicious
Score:
100%
Verdict:
Malware
File Type:
PE
Verdict:
inconclusive
YARA:
6 match(es)
Tags:
.Net Executable Managed .NET PDB Path PE (Portable Executable) PE File Layout SOS: 0.45 Win 32 Exe x86
Threat name:
ByteCode-MSIL.Backdoor.FormBook
Status:
Malicious
First seen:
2025-10-17 07:52:01 UTC
File Type:
PE (.Net Exe)
Extracted files:
11
AV detection:
29 of 38 (76.32%)
Threat level:
5/5
Detection(s):
Malicious file
Verdict:
malicious
Label(s):
unc_loader_037
formbook
Similar samples:
+ 2'204 additional samples on MalwareBazaar
Result
Malware family:
formbook
Score:
10/10
Tags:
family:formbook discovery execution persistence rat spyware stealer trojan
Behaviour
Scheduled Task/Job: Scheduled Task
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
Executes dropped EXE
Command and Scripting Interpreter: PowerShell
Formbook payload
Formbook
Formbook family
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Unpacked files
SH256 hash:
f5a2fcb5abc2713669bc271014e04c42c4e1019471616645ecacf791d53a3545
MD5 hash:
d47cb6028af39d4ff012c5cd5198511e
SHA1 hash:
5fe4068e6d5a3b44802b9610e09e021fd4eaec1c
SH256 hash:
c2e0557cae2db6d4a445204f24bc38d8779dfde5cdff59c8bf2a957f71ff4a9e
MD5 hash:
0f802a2627d5e0031bfc679f106e8002
SHA1 hash:
32b8e9e445241698611ea34a4d4b837d73430b79
SH256 hash:
9f29a2660ce6321cb97eddf7833c329365e52e29d244c09c081d1f5db99f6acc
MD5 hash:
fb35e978baa32adae27a2bc0661b1b69
SHA1 hash:
85d69d89b494de3b2cd996a54905603d7bce7e35
SH256 hash:
2b67bec180efc4ba4af2e5136d34298971f70aeed5039dbfa02f812419d8e8d4
MD5 hash:
1bc42036f5fb2cd55d74dcbb1bd84d5e
SHA1 hash:
fdc498726fd5892122196764383332e9d6b6fc39
Detections:
SUSP_OBF_NET_ConfuserEx_Name_Pattern_Jan24
SUSP_OBF_NET_Reactor_Indicators_Jan24
SH256 hash:
e6bf91315dd2e764537dfae95de41c56d009f39c9754fc76bb3ae51b359b138b
MD5 hash:
a70b0141ffe9e8f7a1eb4185d6b39d56
SHA1 hash:
a2062e38a92832cec37b33be9ca7a1cc8db42f1f
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: | NET |
|---|---|
| Author: | malware-lu |
| 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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