MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 41b29339665e6cfb63bb28d4939f985cce1b3c09a8a3b8e14234a34c7e40fe0d. 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: 13


Intelligence 13 IOCs YARA 19 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 41b29339665e6cfb63bb28d4939f985cce1b3c09a8a3b8e14234a34c7e40fe0d
SHA3-384 hash: aa8e51c56b89f6ded5b5fed7b074111e0a453fc7d4bb413417f633ea4e76bcfb5f21e8ac48ad3823bcaaed084ac095b2
SHA1 hash: 598efe84d8cb520d2f9f84e71d82f8446b62a16b
MD5 hash: 431ec56085a842f1cb61e21ea667def8
humanhash: winner-vermont-potato-glucose
File name:41b29339665e6cfb63bb28d4939f985cce1b3c09a8a3b8e14234a34c7e40fe0d
Download: download sample
Signature Formbook
Create hunting rule
File size:1'091'584 bytes
First seen:2026-06-08 08:43:26 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (49'066 x AgentTesla, 20'011 x Formbook, 12'352 x SnakeKeylogger)
ssdeep 24576:O4TS17IttzSV53+iD8AX+x+JYYfgh8gyOLH8KAortVLbalfBf:O447+lriYAOMSB1RJrt5alfB
TLSH T1BA350214231ACA06D9E65BB11860E3B917744E886621E313DFF7BEFBF83A7413945392
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
Reporter adrian__luca
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
83
Origin country :
HU HU
Vendor Threat Intelligence
Malware configuration found for:
RoboSki
Details
Link:
https://research.acce.ciphertechsolutions.com/results/dc1a91f7-cb19-4658-b0ec-05d5ca67a7ab/
Malware family:
n/a
ID:
1
File name:
_41b29339665e6cfb63bb28d4939f985cce1b3c09a8a3b8e14234a34c7e40fe0d.exe
Verdict:
No threats detected
Analysis date:
2026-06-08 09:12:34 UTC
Tags:
netreactor
Link:
https://app.any.run/tasks/ea3de797-7a76-4d34-9972-7c2c50e05cd3

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/69626/
Detection(s):
SecuriteInfo.com.Trojan.PackedNET.3567.9764.32153.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
99.1%
Link:
https://cyber-fortress.com/docs/result/index.php?id=6a2681adae2f98c00a68c057
Tags:
virus shell msil
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
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/6a2680e68161ac6cb55ca2b1/reports/3924c579-1e87-4e08-9418-345f57b58970/overview
Verdict:
Malicious
Labled as:
Trojan.Generic
Link:
https://www.hybrid-analysis.com/sample/41b29339665e6cfb63bb28d4939f985cce1b3c09a8a3b8e14234a34c7e40fe0d
Verdict:
Malicious
File Type:
exe x32
First seen:
2026-05-25T19:55:00Z UTC
Last seen:
2026-06-09T05:35:00Z UTC
Hits:
~1000
Detections:
Trojan-PSW.Win32.Agent.sb Trojan.Win32.Agent.sb Trojan-Spy.Noon.HTTP.ServerRequest PDM:Trojan.Win32.Generic Backdoor.Agent.HTTP.C&C Trojan.MSIL.Inject.sb Trojan.MSIL.Crypt.sb Trojan-Spy.Win32.Noon.sb HEUR:Trojan-PSW.MSIL.Agensla.gen
Link:
https://opentip.kaspersky.com/41b29339665e6cfb63bb28d4939f985cce1b3c09a8a3b8e14234a34c7e40fe0d/results?tab=lookup
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/532a704d-1803-40e9-8ef1-4a41a32b2149
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/41b29339665e6cfb63bb28d4939f985cce1b3c09a8a3b8e14234a34c7e40fe0d
Gathering data
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/41b29339665e6cfb63bb28d4939f985cce1b3c09a8a3b8e14234a34c7e40fe0d/
Verdict:
Malicious
Threat:
Family.FORMBOOK
Link:
https://tip.neiki.dev/file/41b29339665e6cfb63bb28d4939f985cce1b3c09a8a3b8e14234a34c7e40fe0d
Threat name:
ByteCode-MSIL.Trojan.SnakeKeylogger
Create hunting rule
Status:
Malicious
First seen:
2026-05-25 22:32:01 UTC
File Type:
PE (.Net Exe)
Extracted files:
6
AV detection:
27 of 36 (75.00%)
Threat level:
  5/5
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook discovery execution rat spyware stealer trojan
Link:
https://tria.ge/reports/260608-kmvrvsax8r/
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
Family: Formbook
Formbook payload
Unpacked files
SH256 hash:
41b29339665e6cfb63bb28d4939f985cce1b3c09a8a3b8e14234a34c7e40fe0d
MD5 hash:
431ec56085a842f1cb61e21ea667def8
SHA1 hash:
598efe84d8cb520d2f9f84e71d82f8446b62a16b
Link:
https://www.unpac.me/results/1e596035-8061-4657-ada5-7cb471f87fb7/
SH256 hash:
7870a33b5115c7cbe070d15d7f620c92890cd2f7c83547361af9069ac369801f
MD5 hash:
394bffec93afe12327ec7297452ce0cf
SHA1 hash:
1184da77d3fa224b0970ff5272da84b0fd1947fa
Link:
https://www.unpac.me/results/1e596035-8061-4657-ada5-7cb471f87fb7/
SH256 hash:
5caf5819689dfbbfd414a20c91e53cd4732b999c25f6421f096acb0842bf05b3
MD5 hash:
18bec5fccd934ec156683ee0c31efc26
SHA1 hash:
2725d0c08afb567b2e2e269ffa9e56c6114d698b
Link:
https://www.unpac.me/results/1e596035-8061-4657-ada5-7cb471f87fb7/
SH256 hash:
fb834a0ab2df553494aaef352befbd935d0b19be3c4f9e0c941396b23f1d19b9
MD5 hash:
fae1997c18e2eddb1a14b50a38f85b99
SHA1 hash:
d00909bc6d3db89af66ea9148f2e4a1a8cced112
Link:
https://www.unpac.me/results/1e596035-8061-4657-ada5-7cb471f87fb7/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/41b29339665e6cfb63bb28d4939f985cce1b3c09a8a3b8e14234a34c7e40fe0d

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_Script_Inject_Detector
Create hunting rule
Author:DiegoAnalytics
Description:Detects attempts to inject code into another process across PE, ELF, Mach-O binaries
Rule name:DebuggerCheck__GlobalFlags
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerCheck__QueryInfo
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerHiding__Active
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerHiding__Thread
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DetectEncryptedVariants
Create hunting rule
Author:Zinyth
Description:Detects 'encrypted' in ASCII, Unicode, base64, or hex-encoded
Rule name:dgaagas
Create hunting rule
Author:Harshit
Description:Uses certutil.exe to download a file named test.txt
Rule name:golang_bin_JCorn_CSC846
Create hunting rule
Author:Justin Cornwell
Description:CSC-846 Golang detection ruleset
Rule name:MD5_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for MD5 constants
Rule name:NET
Create hunting rule
Author:malware-lu
Rule name:NETexecutableMicrosoft
Create hunting rule
Author:malware-lu
Rule name:pe_imphash
Create hunting rule
Rule name:pe_no_import_table
Create hunting rule
Description:Detect pe file that no import table
Rule name:RIPEMD160_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for RIPEMD-160 constants
Rule name:SEH__vectored
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:SHA1_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for SHA1 constants
Rule name:shellcode
Create hunting rule
Author:nex
Description:Matched shellcode byte patterns
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:TH_Win_ETW_Bypass_2025_CYFARE
Create hunting rule
Author:CYFARE
Description:Windows ETW Bypass Detection Rule - 2025
Reference:https://cyfare.net/

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Cape
Cape
https://www.capesandbox.com/analysis/69626/

Comments