MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b2346b21db6c58f44a5da13d29d923b939cf01ecc0ea7b0f786c739d8285cfd6. 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 26 File information Comments
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SHA256 hash: b2346b21db6c58f44a5da13d29d923b939cf01ecc0ea7b0f786c739d8285cfd6
SHA3-384 hash: eed07dd2228cecd1b1edf4468564029af8296df58eff1a879576b129fbb06fd86ff8e312830d62d9340a9670f8fe2f43
SHA1 hash: 047e9b6eabf6151127474b96d1e7616247025bf0
MD5 hash: 6cb9744b1f3583cd6a68e2a6bcd2f76d
humanhash: sweet-triple-finch-two
File name:b2346b21db6c58f44a5da13d29d923b939cf01ecc0ea7b0f786c739d8285cfd6
Download: download sample
Signature Formbook
Create hunting rule
File size:1'014'784 bytes
First seen:2026-08-10 14:56:37 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (49'191 x AgentTesla, 20'340 x Formbook, 12'364 x SnakeKeylogger)
ssdeep 12288:iHFM19w+pGFSBp9DpoBYBZLG6Sue0WXN8tFBWPFb2iPZUTNR0jnAQLskfxwwLCms:iHFK9xpHBp9DpoBWC6SWGENIAQ7HLz
TLSH T1CC2523AC76B58A13E9A96BFC46F0E53557723E8F9330D20E4ECA6CEB7461B008914713
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 :
149
Origin country :
HU HU
Vendor Threat Intelligence
Malware configuration found for:
RoboSki
Details
Link:
https://research.acce.ciphertechsolutions.com/results/c3ceb6cd-2019-4dac-a29f-35cc4586b8cd/
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/80090/
Detection(s):
Win.Malware.BubbleLevel-10060434-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Сreating synchronization primitives
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
Creating a file in the %temp% directory
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)
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
base64 entropy expand krypt lolbin packed
Link:
https://www.filescan.io/uploads/6a79e6f5b831bf6082d5d38c/reports/19da8d2a-a73b-4b1a-8f6a-a34db2884a4d/overview
Verdict:
Malicious
Labled as:
Trojan.Generic
Link:
https://www.hybrid-analysis.com/sample/b2346b21db6c58f44a5da13d29d923b939cf01ecc0ea7b0f786c739d8285cfd6
Verdict:
Malicious
File Type:
exe x32
First seen:
2026-07-28T10:23:00Z UTC
Last seen:
2026-08-03T10:58:00Z UTC
Hits:
~100
Link:
https://opentip.kaspersky.com/b2346b21db6c58f44a5da13d29d923b939cf01ecc0ea7b0f786c739d8285cfd6/results?tab=lookup
Gathering data
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/b2346b21db6c58f44a5da13d29d923b939cf01ecc0ea7b0f786c739d8285cfd6
Gathering data
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/b2346b21db6c58f44a5da13d29d923b939cf01ecc0ea7b0f786c739d8285cfd6/
Threat name:
ByteCode-MSIL.Backdoor.FormBook
Create hunting rule
Status:
Malicious
First seen:
2026-07-29 04:09:51 UTC
File Type:
PE (.Net Exe)
Extracted files:
8
AV detection:
26 of 36 (72.22%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
Formbook
Create hunting rule
Link:
https://reports.threatray.com/a0fa6e0a-54a3-4e6a-ba0e-7b0e4fd0a328
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook discovery execution persistence rat spyware stealer trojan
Link:
https://tria.ge/reports/260810-snsmwsbr51/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Program crash
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Adds Run key to start application
Executes dropped EXE
Command and Scripting Interpreter: PowerShell
Family: Formbook
Formbook payload
Unpacked files
SH256 hash:
b2346b21db6c58f44a5da13d29d923b939cf01ecc0ea7b0f786c739d8285cfd6
MD5 hash:
6cb9744b1f3583cd6a68e2a6bcd2f76d
SHA1 hash:
047e9b6eabf6151127474b96d1e7616247025bf0
Link:
https://www.unpac.me/results/1e32dedb-5ec7-4ff8-b4c9-c17ff44d7984/
SH256 hash:
0c59f203baf752788b12898d6c2e45bf7d9463d17496a28c613d13aaa7e28126
MD5 hash:
ce3e220945b5ed93693194d17be50c38
SHA1 hash:
c7ce4512eaaae7dc5af94a58d5b841a766b4879f
Link:
https://www.unpac.me/results/1e32dedb-5ec7-4ff8-b4c9-c17ff44d7984/
SH256 hash:
47a856ff7d9bf14949f9a1deed4ba4ec9495a9ef95ee41ba6d78f630561d166c
MD5 hash:
332b4cd85d1b878f5c5bf709b5984644
SHA1 hash:
ddba69ce01e7ea28029d271d4dd2f75bc3bf454f
Link:
https://www.unpac.me/results/1e32dedb-5ec7-4ff8-b4c9-c17ff44d7984/
SH256 hash:
4b3f1af9b6ffc17933055fa546122fbcb82d4a25c72fb0358437fbe2aca50c44
MD5 hash:
9fe030e681c32a3d20f2d71783197e26
SHA1 hash:
2cee8593d223253e5776738110f05011e5db6ea2
Link:
https://www.unpac.me/results/1e32dedb-5ec7-4ff8-b4c9-c17ff44d7984/
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/b2346b21db6c/report/overview.html
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/b2346b21db6c58f44a5da13d29d923b939cf01ecc0ea7b0f786c739d8285cfd6

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:Sus_CMD_Powershell_Usage
Create hunting rule
Author:XiAnzheng
Description:May Contain(Obfuscated or no) Powershell or CMD Command that can be abused by threat actor(can create FP)
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/80090/

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