MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 5b4f596d3cf54c94c57934ccc75e31d7f5999df9abb1b77ff6f8cff007da8d74. 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: 19


Intelligence 19 IOCs YARA 4 File information Comments
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SHA256 hash: 5b4f596d3cf54c94c57934ccc75e31d7f5999df9abb1b77ff6f8cff007da8d74
SHA3-384 hash: 363590e0944228f9e9daa243f682047adff1674def4102eabb7c98e0583c848a7f070abdad885a4f8455691a2ce6dcdc
SHA1 hash: 28f9b21aeb34919ca6e24f8c6367fcf66ce92842
MD5 hash: 2ce037d5a137a811502826ebab3fc675
humanhash: delaware-eight-ten-beryllium
File name:DWG-00141842- MENTORTECH Request For the Quotation information 3001410 - 20260521 GF8017.bat
Download: download sample
Signature Formbook
Create hunting rule
File size:1'102'336 bytes
First seen:2026-05-29 09:18:43 UTC
Last seen:2026-05-29 10:43:31 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (49'006 x AgentTesla, 19'914 x Formbook, 12'332 x SnakeKeylogger)
ssdeep 24576:7Rux28K6ICqbXLnNdure1p3PRPENpW2w2T1PzlR:7t56gN0ep5PEpfw0BH
Threatray 2'886 similar samples on MalwareBazaar
TLSH T16D350214231ADA06D4FB9BB64870E37006783E48B675E3078EE97DEB783679258583D3
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 lowmal3
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
142
Origin country :
DE DE
Vendor Threat Intelligence
Malware configuration found for:
RoboSki
Details
Link:
https://research.acce.ciphertechsolutions.com/results/02bd72ae-0158-4e88-8f7e-88704caeb5cd/
Malware family:
formbook
Create hunting rule
ID:
1
File name:
_5b4f596d3cf54c94c57934ccc75e31d7f5999df9abb1b77ff6f8cff007da8d74.exe
Verdict:
Malicious activity
Analysis date:
2026-05-29 09:21:15 UTC
Tags:
auto-reg netreactor formbook xloader
Link:
https://app.any.run/tasks/eb00e55e-774f-4381-940d-172ed7bbccb1

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/68398/
Detection(s):
SecuriteInfo.com.Trojan.PackedNET.3251.15234.12740.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
99.1%
Link:
https://cyber-fortress.com/docs/result/index.php?id=6a195a2ec73fda38a80a9c96
Tags:
virus micro msil
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Launching a service
Сreating synchronization primitives
Creating a process with a hidden window
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
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Adding an exclusion to Microsoft Defender
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
masquerade packed vbnet
Link:
https://www.filescan.io/uploads/6a195a2a46e44aecc0c35e2e/reports/0349144f-d74a-454a-a159-6a3be8c0295d/overview
Verdict:
Malicious
Labled as:
Trojan.Generic
Link:
https://www.hybrid-analysis.com/sample/5b4f596d3cf54c94c57934ccc75e31d7f5999df9abb1b77ff6f8cff007da8d74
Verdict:
Malicious
File Type:
exe x32
First seen:
2026-05-26T04:37:00Z UTC
Last seen:
2026-05-31T07:05:00Z UTC
Hits:
~1000
Detections:
HEUR:Trojan-Spy.MSIL.SnakeLogger.gen PDM:Trojan.Win32.Generic Backdoor.Agent.HTTP.C&C Trojan.Win32.Agent.sb Trojan.MSIL.Dnoper.sb Trojan-Spy.Noon.HTTP.ServerRequest
Link:
https://opentip.kaspersky.com/5b4f596d3cf54c94c57934ccc75e31d7f5999df9abb1b77ff6f8cff007da8d74/results?tab=lookup
Verdict:
Suspicious
Link:
https://analyze.intezer.com/analyses/8becf67e-74f2-442f-a0db-367f9c1200a1
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1920206
Signature
.NET source code contains method to dynamically call methods (often used by packers)
Adds a directory exclusion to Windows Defender
AI detected malicious Powershell script
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Antivirus detection for URL or domain
Bypasses PowerShell execution policy
Creates an autostart registry key pointing to binary in C:\Windows
Creates autostart registry keys with suspicious values (likely registry only malware)
Initial sample is a PE file and has a suspicious name
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 dropped file
Multi AV Scanner detection for submitted file
Performs DNS queries to domains with low reputation
Queues an APC in another process (thread injection)
Sigma detected: New RUN Key Pointing to Suspicious Folder
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
Sigma detected: Script Interpreter Execution From Suspicious Folder
Sigma detected: Suspicious Script Execution From Temp Folder
Suricata IDS alerts for network traffic
Suspicious powershell command line found
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)
Unusual module load detection (module proxying)
Yara detected AntiVM3
Yara detected FormBook
Yara detected UAC Bypass using CMSTP
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1920206 Sample: DWG-00141842- MENTORTECH Re... Startdate: 29/05/2026 Architecture: WINDOWS Score: 100 72 www.zorvixhub.xyz 2->72 74 www.teslasoft.uk 2->74 76 18 other IPs or domains 2->76 78 Suricata IDS alerts for network traffic 2->78 80 Antivirus detection for URL or domain 2->80 82 Antivirus / Scanner detection for submitted sample 2->82 86 16 other signatures 2->86 11 DWG-00141842- MENTORTECH Request For the Quotation information 3001410 - 20260521 GF8017.bat.exe 1 7 2->11         started        15 powershell.exe 19 2->15         started        17 powershell.exe 2->17         started        signatures3 84 Performs DNS queries to domains with low reputation 72->84 process4 file5 58 C:\Users\user\AppData\Roaming\AcNsBNTm.exe, PE32 11->58 dropped 60 C:\Users\...\AcNsBNTm.exe:Zone.Identifier, ASCII 11->60 dropped 62 C:\Users\user\AppData\...\0mxgw4zxfuh.ps1, ASCII 11->62 dropped 64 DWG-00141842- MENT... GF8017.bat.exe.log, ASCII 11->64 dropped 100 Creates autostart registry keys with suspicious values (likely registry only malware) 11->100 102 Creates an autostart registry key pointing to binary in C:\Windows 11->102 104 Adds a directory exclusion to Windows Defender 11->104 106 Injects a PE file into a foreign processes 11->106 19 DWG-00141842- MENTORTECH Request For the Quotation information 3001410 - 20260521 GF8017.bat.exe 11->19         started        22 powershell.exe 23 11->22         started        24 AcNsBNTm.exe 3 15->24         started        26 conhost.exe 15->26         started        28 AcNsBNTm.exe 17->28         started        30 conhost.exe 17->30         started        signatures6 process7 signatures8 88 Maps a DLL or memory area into another process 19->88 32 8l9GDprN.exe 19->32 injected 90 Loading BitLocker PowerShell Module 22->90 34 conhost.exe 22->34         started        92 Antivirus detection for dropped file 24->92 94 Multi AV Scanner detection for dropped file 24->94 96 Injects a PE file into a foreign processes 24->96 98 Unusual module load detection (module proxying) 24->98 36 AcNsBNTm.exe 24->36         started        38 AcNsBNTm.exe 24->38         started        40 AcNsBNTm.exe 28->40         started        42 AcNsBNTm.exe 28->42         started        44 AcNsBNTm.exe 28->44         started        process9 process10 46 mcbuilder.exe 13 32->46         started        signatures11 108 Tries to steal Mail credentials (via file / registry access) 46->108 110 Tries to harvest and steal browser information (history, passwords, etc) 46->110 112 Modifies the context of a thread in another process (thread injection) 46->112 114 4 other signatures 46->114 49 HLzD2WYb6.exe 46->49 injected 52 chrome.exe 46->52         started        54 firefox.exe 46->54         started        process12 dnsIp13 66 www.zorvixhub.xyz 69.57.161.59, 49734, 49735, 49736 NAMECHEAP-NET-NamecheapIncUS United States 49->66 68 www.plaudshop.store 95.163.244.138, 49706, 49707, 49708 AS-REGRU Russia 49->68 70 12 other IPs or domains 49->70 56 WerFault.exe 52->56         started        process14
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/5b4f596d3cf54c94c57934ccc75e31d7f5999df9abb1b77ff6f8cff007da8d74
Gathering data
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/5b4f596d3cf54c94c57934ccc75e31d7f5999df9abb1b77ff6f8cff007da8d74/
Verdict:
Malicious
Threat:
Family.FORMBOOK
Link:
https://tip.neiki.dev/file/5b4f596d3cf54c94c57934ccc75e31d7f5999df9abb1b77ff6f8cff007da8d74
Threat name:
Win32.Backdoor.FormBook
Create hunting rule
Status:
Malicious
First seen:
2026-05-26 10:40:36 UTC
File Type:
PE (.Net Exe)
Extracted files:
4
AV detection:
19 of 24 (79.17%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=lnhvs3j46vgjjrlzgtgmoxrr272zthpzvoy3o77w7dh7ab62rv2a._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
0c6730a7efa571195ca00c719b07035db16574b2cd5f9a8313fbb5661ce45841
Formbook
479ca9e4974c18451cc33514037e524b1e04aea73d7ea1e2cec19ae5d443bb5d
Formbook
580095fa81f7b8fb14fdaa9203137f8ee9299cca68ba011e6bd285f0284bb6c6
Formbook
706bd04b5489a253c4e35239df8e08b74f873dbfe8e5dfb3cfdd4a43491f9c62
Formbook
76cc2e6844b7360c632e50db7aac40e3cd001a496ee045ef01e4ad56c069c011
Formbook
9fcba21de2fba1e9eee5e341ae7da8601fd1e30ab3d2b3954586b96586c7cb0b
Formbook
b32d05c6d0606ae99980ac52e9acbae681e7c35936abca1aa7bbc66bc25bb0e5
Formbook
error
Formbook
+ 2'876 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook adware collection discovery execution persistence rat spyware stealer trojan
Link:
https://tria.ge/reports/260529-lagvxaf14k/
Behaviour
Modifies Internet Explorer settings
Modifies registry class
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of UnmapMainImage
Suspicious use of WriteProcessMemory
outlook_office_path
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Accesses Microsoft Outlook profiles
Adds Run key to start application
Checks computer location settings
Executes dropped EXE
Command and Scripting Interpreter: PowerShell
Family: Formbook
Formbook payload
Unpacked files
SH256 hash:
5b4f596d3cf54c94c57934ccc75e31d7f5999df9abb1b77ff6f8cff007da8d74
MD5 hash:
2ce037d5a137a811502826ebab3fc675
SHA1 hash:
28f9b21aeb34919ca6e24f8c6367fcf66ce92842
Link:
https://www.unpac.me/results/ade83f3c-6950-4483-b435-c39b5b558e0e/
SH256 hash:
f0f1a93afa14cc5b3bb51be17a6f1789c4f0db115e86a3f0232c21dbbfbcbe67
MD5 hash:
112b894e40195aa6841759baaad9ddd0
SHA1 hash:
80bd24e32f326e069e82631fbb38425717d1b9b8
Link:
https://www.unpac.me/results/ade83f3c-6950-4483-b435-c39b5b558e0e/
SH256 hash:
bc182f2d934b3e8f2d8c93739d8c8383e60223af16c62359a10831f76d9d168a
MD5 hash:
e01f8eac49eefbab201ec555dc9ae891
SHA1 hash:
9539cb2e684aded0ee0d1213b1d2679220bef72d
Link:
https://www.unpac.me/results/ade83f3c-6950-4483-b435-c39b5b558e0e/
SH256 hash:
c120a913c73cc0abc0bedb3b1454c717bef4ffcb3f289811362bf3e073d9fa69
MD5 hash:
a9290bfebb4599a82691252a0b17bc6e
SHA1 hash:
cc19ec4ed8c558733383e23e75ce29e2dcd69dbc
Link:
https://www.unpac.me/results/ade83f3c-6950-4483-b435-c39b5b558e0e/
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/5b4f596d3cf5/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/5b4f596d3cf54c94c57934ccc75e31d7f5999df9abb1b77ff6f8cff007da8d74

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:NETexecutableMicrosoft
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

File information

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

Malspam

Formbook

Executable exe 5b4f596d3cf54c94c57934ccc75e31d7f5999df9abb1b77ff6f8cff007da8d74

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/68398/

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