MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 956d3631ac68a12eefda2aa0f40f164f49dbda760f311e366697c71c3bb92de5. 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: 16


Intelligence 16 IOCs YARA 25 File information Comments
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SHA256 hash: 956d3631ac68a12eefda2aa0f40f164f49dbda760f311e366697c71c3bb92de5
SHA3-384 hash: e9d88b169ba0f982362fccad7ae5310daf12ae8b29722c39be8bb8cf41dc8564591722cdaf66f12748f71364c5e4b5b0
SHA1 hash: c143a2f2a99e0b94424da94181286f49a24a7af5
MD5 hash: 06f59fecf0f7319a31819fced92e89d0
humanhash: purple-butter-cola-hydrogen
File name:956d3631ac68a12eefda2aa0f40f164f49dbda760f311e366697c71c3bb92de5
Download: download sample
Signature Formbook
Create hunting rule
File size:815'104 bytes
First seen:2025-06-10 09:50:13 UTC
Last seen:2025-06-10 10:19:51 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'666 x AgentTesla, 19'479 x Formbook, 12'209 x SnakeKeylogger)
ssdeep 12288:bXpltcmf9QTdFsMF0KoheLjmCQjC2mBtTtYf5EB3vyEyoiy6TanUE:ntcmqTdFdF0/nlmBXtKEyoEb
Threatray 1'610 similar samples on MalwareBazaar
TLSH T1BE0512147356C81BCA6623B40A70F23D537D5EDAA820DA46BFCD6DEFB9B6B010D14293
TrID 69.7% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.0% (.EXE) Win64 Executable (generic) (10522/11/4)
6.2% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.2% (.EXE) Win32 Executable (generic) (4504/4/1)
1.9% (.EXE) Win16/32 Executable Delphi generic (2072/23)
Magika pebin
dhash icon e89e8e7133b2b2f0 (13 x SnakeKeylogger, 9 x Formbook, 3 x AgentTesla)
Reporter adrian__luca
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
405
Origin country :
HU HU
Vendor Threat Intelligence
Malware family:
formbook
Create hunting rule
ID:
1
File name:
956d3631ac68a12eefda2aa0f40f164f49dbda760f311e366697c71c3bb92de5
Verdict:
Malicious activity
Analysis date:
2025-06-10 15:26:13 UTC
Tags:
formbook xloader
Link:
https://app.any.run/tasks/00534121-6647-45c4-a2a5-477d0a0f03b6

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/8606/
Detection(s):
SecuriteInfo.com.Trojan.PackedNET.3342.18086.20334.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
99.1%
Link:
https://cyber-fortress.com/docs/result/index.php?id=6847ffe98bd5d68a12e76561
Tags:
virus micro msil
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a 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)
Verdict:
Malicious
Labled as:
Trojan.Generic
Link:
https://www.hybrid-analysis.com/sample/956d3631ac68a12eefda2aa0f40f164f49dbda760f311e366697c71c3bb92de5
Malware family:
Formbook
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/a92b63ed-89f5-4b6b-81fc-678e7e63ee7c
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1710683
Signature
.NET source code contains potential unpacker
Injects a PE file into a foreign processes
Joe Sandbox ML detected suspicious sample
Maps a DLL or memory area into another process
Modifies the context of a thread in another process (thread injection)
Multi AV Scanner detection for submitted file
Performs DNS queries to domains with low reputation
Queues an APC in another process (thread injection)
Suricata IDS alerts for network traffic
Switches to a custom stack to bypass stack traces
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Uses threadpools to delay analysis
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1710683 Sample: uwS5RD5pnw.exe Startdate: 10/06/2025 Architecture: WINDOWS Score: 100 34 www.voguevanguard.xyz 2->34 36 www.longwriting.xyz 2->36 38 14 other IPs or domains 2->38 46 Suricata IDS alerts for network traffic 2->46 48 Multi AV Scanner detection for submitted file 2->48 50 Yara detected FormBook 2->50 54 2 other signatures 2->54 11 uwS5RD5pnw.exe 3 2->11         started        signatures3 52 Performs DNS queries to domains with low reputation 36->52 process4 file5 32 C:\Users\user\AppData\...\uwS5RD5pnw.exe.log, ASCII 11->32 dropped 64 Injects a PE file into a foreign processes 11->64 66 Uses threadpools to delay analysis 11->66 15 uwS5RD5pnw.exe 11->15         started        signatures6 process7 signatures8 68 Maps a DLL or memory area into another process 15->68 18 Kp47qQS8fr4U.exe 15->18 injected process9 process10 20 wscript.exe 13 18->20         started        signatures11 56 Tries to steal Mail credentials (via file / registry access) 20->56 58 Tries to harvest and steal browser information (history, passwords, etc) 20->58 60 Modifies the context of a thread in another process (thread injection) 20->60 62 3 other signatures 20->62 23 InGllLvNR8B.exe 20->23 injected 26 chrome.exe 20->26         started        28 firefox.exe 20->28         started        process12 dnsIp13 40 www.g50tz.top 154.23.221.153, 49725, 49726, 49727 COGENT-174US United States 23->40 42 www.zennova.life 159.198.76.235, 49713, 49714, 49715 CAT-IDC-4BYTENET-AS-APCATTELECOMPublicCompanyLtdCATT United States 23->42 44 7 other IPs or domains 23->44 30 WerFault.exe 4 26->30         started        process14
Score:
99%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/956d3631ac68a12eefda2aa0f40f164f49dbda760f311e366697c71c3bb92de5
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/956d3631ac68a12eefda2aa0f40f164f49dbda760f311e366697c71c3bb92de5/
Threat name:
ByteCode-MSIL.Backdoor.FormBook
Create hunting rule
Status:
Malicious
First seen:
2025-05-27 06:39:15 UTC
File Type:
PE (.Net Exe)
Extracted files:
21
AV detection:
27 of 36 (75.00%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=svwtmmnmncqs5362fkqpidywj5e5xwtwb4yr4ntgs7dryo5zfxsq._file
Verdict:
malicious
Label(s):
unc_loader_037
Create hunting rule
Similar samples:
001b0c9dbf1672e7819dd0d7b77d401150a67d3e1e28fe10c4ca0de189c7922c
Formbook
561b36899110461d6a3bffc391c3e26200ed7a3dc5ab05bbc29fbf9116afc842
Formbook
998197ce8013806ab8d6442aca63b44c1e9c85af665f73de0dc550a0352696d0
Formbook
c33245bf3b34f4314bf041409d5452120308e90fdf66cd6e8adf742cf3573dfb
Formbook
+ 1'600 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  5/10
Tags:
discovery
Link:
https://tria.ge/reports/250610-lt4h1swms9/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Program crash
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/91b0976d-1125-434e-942d-9b4e7e9ef673
Unpacked files
SH256 hash:
956d3631ac68a12eefda2aa0f40f164f49dbda760f311e366697c71c3bb92de5
MD5 hash:
06f59fecf0f7319a31819fced92e89d0
SHA1 hash:
c143a2f2a99e0b94424da94181286f49a24a7af5
Link:
https://www.unpac.me/results/a1bd953a-962e-4049-ae7b-67f1eea30c36/
SH256 hash:
40821f2c5247a234030a44871d4d62035044e2d486432b81e06880213c6fa912
MD5 hash:
c98557f7f6d853d88f1704eeacf3f39d
SHA1 hash:
01fb8c8b57fe8e19022f3fe0ac882c4e9cd9c69c
Link:
https://www.unpac.me/results/a1bd953a-962e-4049-ae7b-67f1eea30c36/
SH256 hash:
5637645d6c93987d431ed0150db3e0dc329089402964c9287ef73ffc482829f6
MD5 hash:
ea72c63b0a7556db93cbb601b0eed117
SHA1 hash:
4e7bba6aeb6f5adaeec455a00705729fca15668d
Detections:
SUSP_OBF_NET_ConfuserEx_Name_Pattern_Jan24
Create hunting rule
SUSP_OBF_NET_Reactor_Indicators_Jan24
Create hunting rule
Link:
https://www.unpac.me/results/a1bd953a-962e-4049-ae7b-67f1eea30c36/
SH256 hash:
af824df6fa4371c0f8fd63ac65e886f42c897bbd271dd8c0e8209114c744951e
MD5 hash:
b1e5d5c4226df61920605a9be21a502c
SHA1 hash:
5cdb288a9f4814c6f65bdeeb84b768daf5d0abbf
Link:
https://www.unpac.me/results/a1bd953a-962e-4049-ae7b-67f1eea30c36/
SH256 hash:
7f2e0fda1624d5751281c72f2b69d42f4ff0a653c5d70b8d4ac7c520df881c32
MD5 hash:
f162424de6b04b447ce541c899e238fa
SHA1 hash:
65f75358ba7f5ab69cb413061456dd50fa806604
Link:
https://www.unpac.me/results/a1bd953a-962e-4049-ae7b-67f1eea30c36/
SH256 hash:
73cb17906e9d87bd3e4ec0045b5c649dc3b9bb9925f3975c4c6f02b459bc71db
MD5 hash:
06e98e4343f6b20e7f735b5a33163b0f
SHA1 hash:
a3d5a1d85f48c51cc733b0c8746ab9197c29bae9
Detections:
win_formbook_g0
Create hunting rule
Link:
https://www.unpac.me/results/a1bd953a-962e-4049-ae7b-67f1eea30c36/
Parent samples :
1f8134b7860408ce6e11f370d6dca9e8d4425bcfe7a1217b8c49f8ff567b73f0
956d3631ac68a12eefda2aa0f40f164f49dbda760f311e366697c71c3bb92de5
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/956d3631ac68/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/956d3631ac68a12eefda2aa0f40f164f49dbda760f311e366697c71c3bb92de5

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: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:dgaagas
Create hunting rule
Author:Harshit
Description:Uses certutil.exe to download a file named test.txt
Rule name:Formbook
Create hunting rule
Author:kevoreilly
Description:Formbook Payload
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:meth_stackstrings
Create hunting rule
Author:Willi Ballenthin
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_Obf_Enc_Spoof_Hide_PE
Create hunting rule
Author:XiAnzheng
Description:Check for Overlay, Obfuscating, Encrypting, Spoofing, Hiding, or Entropy Technique(can create FP)

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/8606/

BLint

The following table provides more information about this file using BLint. BLint is a Binary Linter to check the security properties, and capabilities in executables.

Findings
IDTitleSeverity
CHECK_AUTHENTICODEMissing Authenticodehigh
CHECK_DLL_CHARACTERISTICSMissing dll Security Characteristics (GUARD_CF)high

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