MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 cff58d47ace3d4f9f9638e677ca186db81c7a462407fcc7f211c8ecb0924b236. 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: 15


Intelligence 15 IOCs YARA 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: cff58d47ace3d4f9f9638e677ca186db81c7a462407fcc7f211c8ecb0924b236
SHA3-384 hash: e48f9e0f8cca90db5de18b5ec7d9898b06e74cefbe5ecbc3ab3da314ab6b5e209d36bcbfc9f69aaf17a329b32f2080e9
SHA1 hash: 8788265960d1f84611fad46e9e9cdbc50b44a998
MD5 hash: c4f1446f26541766bf270e4119a54a0d
humanhash: montana-whiskey-aspen-speaker
File name:cff58d47ace3d4f9f9638e677ca186db81c7a462407fcc7f211c8ecb0924b236
Download: download sample
Signature Formbook
Create hunting rule
File size:1'190'912 bytes
First seen:2025-04-08 07:22:16 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'657 x AgentTesla, 19'468 x Formbook, 12'206 x SnakeKeylogger)
ssdeep 24576:JkSXOWKYkcUxlLAvIulP0ShjWBWAzx//:JkS+WnsWvLxlmrzx//
Threatray 54 similar samples on MalwareBazaar
TLSH T1E1458D0137A89A0BD23B57F56A509234C3766F9BE17AD7CE4DC170EB35E1B01AB42227
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
dhash icon 0000000000000000 (872 x AgentTesla, 496 x Formbook, 296 x RedLineStealer)
Reporter adrian__luca
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
405
Origin country :
HU HU
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
cff58d47ace3d4f9f9638e677ca186db81c7a462407fcc7f211c8ecb0924b236
Verdict:
No threats detected
Analysis date:
2025-04-08 09:30:31 UTC
Tags:
netreactor
Link:
https://app.any.run/tasks/7b291fc0-25a0-41b6-aa0c-5c0fce3238e0

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/1270/
Verdict:
Malicious
Score:
99.1%
Link:
https://cyber-fortress.com/docs/result/index.php?id=67f4d070e011fe619fad0e5f
Tags:
virus shell msil
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Сreating synchronization primitives
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:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
krypt obfuscated packed packed packer_detected vbnet
Link:
https://www.filescan.io/uploads/67f4ceb82d430c849e0c5549/reports/249342fb-fe56-47cd-a905-1706adfa021b/overview
Verdict:
Malicious
Labled as:
Trojan.Generic
Link:
https://www.hybrid-analysis.com/sample/cff58d47ace3d4f9f9638e677ca186db81c7a462407fcc7f211c8ecb0924b236
Malware family:
Agent Tesla
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/4d91ec47-09c2-4d47-8a4b-8045f80731e2
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1659021
Signature
.NET source code contains potential unpacker
Adds a directory exclusion to Windows Defender
Antivirus / Scanner detection for submitted sample
Antivirus detection for URL or domain
Found direct / indirect Syscall (likely to bypass EDR)
Injects a PE file into a foreign processes
Joe Sandbox ML detected suspicious sample
Loading BitLocker PowerShell Module
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
Queues an APC in another process (thread injection)
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
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)
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1659021 Sample: 9GLnjeriW3.exe Startdate: 08/04/2025 Architecture: WINDOWS Score: 100 37 www.mailersquares.online 2->37 39 eternal.house 2->39 41 13 other IPs or domains 2->41 49 Suricata IDS alerts for network traffic 2->49 51 Antivirus detection for URL or domain 2->51 53 Antivirus / Scanner detection for submitted sample 2->53 55 6 other signatures 2->55 10 9GLnjeriW3.exe 4 2->10         started        signatures3 process4 file5 35 C:\Users\user\AppData\...\9GLnjeriW3.exe.log, ASCII 10->35 dropped 67 Adds a directory exclusion to Windows Defender 10->67 69 Injects a PE file into a foreign processes 10->69 14 9GLnjeriW3.exe 10->14         started        17 powershell.exe 23 10->17         started        signatures6 process7 signatures8 71 Maps a DLL or memory area into another process 14->71 19 6Kt2HPQw.exe 14->19 injected 73 Loading BitLocker PowerShell Module 17->73 22 WmiPrvSE.exe 17->22         started        24 conhost.exe 17->24         started        process9 signatures10 57 Found direct / indirect Syscall (likely to bypass EDR) 19->57 26 secinit.exe 13 19->26         started        process11 signatures12 59 Tries to steal Mail credentials (via file / registry access) 26->59 61 Tries to harvest and steal browser information (history, passwords, etc) 26->61 63 Modifies the context of a thread in another process (thread injection) 26->63 65 3 other signatures 26->65 29 6Kt2HPQw.exe 26->29 injected 33 firefox.exe 26->33         started        process13 dnsIp14 43 www.mailersquares.online 208.91.197.13, 49764, 49765, 49766 CONFLUENCE-NETWORK-INCVG Virgin Islands (BRITISH) 29->43 45 asdfllt.appxzq.com 154.23.189.249, 49768, 49769, 49770 COGENT-174US United States 29->45 47 10 other IPs or domains 29->47 75 Found direct / indirect Syscall (likely to bypass EDR) 29->75 signatures15
Score:
99%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/cff58d47ace3d4f9f9638e677ca186db81c7a462407fcc7f211c8ecb0924b236
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/cff58d47ace3d4f9f9638e677ca186db81c7a462407fcc7f211c8ecb0924b236/
Threat name:
Win32.Trojan.Leonem
Create hunting rule
Status:
Malicious
First seen:
2025-03-23 13:28:57 UTC
File Type:
PE (.Net Exe)
Extracted files:
42
AV detection:
24 of 36 (66.67%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=z72y2r5m4pkpt6ldrztxzimg3oa4pjdcib74y7zbdshmwcjewi3a._file
Verdict:
malicious
Label(s):
unc_loader_037
Create hunting rule
Similar samples:
145f6076604900c379d5a82d6a95e6c56df274b34d77158056dccb5834516461
Formbook
7157f19969ea92bb660c62b91144ca8be1d6f1631252c7d1f7125fd957a1cde6
Formbook
83d1fdd6869066e5137c1e6143a643be25ef6339a4e4ef470ffe7678d75d4dbf
Formbook
ccadaf700c4557efd158b2578d62710414c288b13d1c7a1eec1b06957ea8837b
Formbook
cff58d47ace3d4f9f9638e677ca186db81c7a462407fcc7f211c8ecb0924b236
Formbook
error
Formbook
+ 44 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  8/10
Tags:
discovery execution
Link:
https://tria.ge/reports/250408-h7gpmazp15/
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
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/23a5a7b7-cba9-42ec-bd0f-67fbd975cf42
Unpacked files
SH256 hash:
cff58d47ace3d4f9f9638e677ca186db81c7a462407fcc7f211c8ecb0924b236
MD5 hash:
c4f1446f26541766bf270e4119a54a0d
SHA1 hash:
8788265960d1f84611fad46e9e9cdbc50b44a998
Link:
https://www.unpac.me/results/6ab3feff-498b-4ee4-a1e2-6091cb69cc5b/
SH256 hash:
11d228ec031ae9ec67457d54b007955dd1cac5cb4a2c0c27d13c3c3b0a1ba06e
MD5 hash:
4053bf37046b057794900fa145c247d5
SHA1 hash:
24877749c441b48f40299d82fe823645ad1f0f87
Detections:
SUSP_OBF_NET_Reactor_Indicators_Jan24
Create hunting rule
Link:
https://www.unpac.me/results/6ab3feff-498b-4ee4-a1e2-6091cb69cc5b/
Parent samples :
cff58d47ace3d4f9f9638e677ca186db81c7a462407fcc7f211c8ecb0924b236
421534d0060e495291344ee5732e1d3293627d5d0c15eaab3f0f71b122e30069
SH256 hash:
945931a9891809615743db1c0816410d70b6dfdc012cd654205d1f00628b0598
MD5 hash:
4f5b089c8e6bb13d86e30a0e01d7347f
SHA1 hash:
7602e8a5d1ab594b2c13f02b8d5741b3fc65a1d3
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/6ab3feff-498b-4ee4-a1e2-6091cb69cc5b/
SH256 hash:
c6d3a517aaa15304fa69f01b2e3077eeb5a88f0145bb5264be10b3dbafd28184
MD5 hash:
485101d81cdd8adaf4572179e943ccad
SHA1 hash:
ec7b4b4018905a2f7c8f18e1ba666307a4cfc08f
Link:
https://www.unpac.me/results/6ab3feff-498b-4ee4-a1e2-6091cb69cc5b/
SH256 hash:
85081045a0a52967e634cbc35e9135c80b31e0ed416208349a5b0610be0cb47b
MD5 hash:
2fd21e94614e7f144ed3ac095dc76a83
SHA1 hash:
fae41e05cdbecd0a30721e0c3be8394c335250a4
Link:
https://www.unpac.me/results/6ab3feff-498b-4ee4-a1e2-6091cb69cc5b/
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/cff58d47ace3d4f9f9638e677ca186db81c7a462407fcc7f211c8ecb0924b236

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
Create hunting rule
Author:malware-lu
Rule name:pe_imphash
Create hunting rule
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/1270/

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 (HIGH_ENTROPY_VA)high

Comments