MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 734e91a988165f829e532e99404ae00a081be1d1a97c6561cbc5621e0595e572. 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: 10


Intelligence 10 IOCs YARA File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 734e91a988165f829e532e99404ae00a081be1d1a97c6561cbc5621e0595e572
SHA3-384 hash: 3e145813a53ae0d4955f261e8a93602bcd9ebc2e356c4ba3b349da8ebd39d4e89f1a115373ec4f46492d9c98ae6ec5d6
SHA1 hash: b69a9b8083ffee07e76492c6e606241a7068bc50
MD5 hash: e101fd22b6c28e220a001a225754517f
humanhash: fish-nevada-west-lake
File name:RFQ 8401.vbe
Download: download sample
Signature Formbook
Create hunting rule
File size:2'075'600 bytes
First seen:2025-12-10 05:40:05 UTC
Last seen:Never
File type:Visual Basic Script (vbe) vbe
MIME type:application/octet-stream
ssdeep 12288:nnwqY65pxgRH2TpcBrsjeMxYV7PA5ZnArM/jFW+HavNyacV2MFVnPTrn3Y0P2CLi:gYHiiZWSDavsNz2CLy3d9OMeQ
TLSH T1EFA5B25D84B1ACD3A054FEB4F685FFD78C9B5385162B07421FE4858A3312C83FAA72A5
TrID 66.6% (.TXT) Text - UTF-16 (LE) encoded (2000/1)
33.3% (.MP3) MP3 audio (1000/1)
Magika vba
Reporter abuse_ch
Tags:FormBook vbe

Intelligence

File Origin
# of uploads :
1
# of downloads :
60
Origin country :
SE SE
Vendor Threat Intelligence
No detections
Detection(s):
SecuriteInfo.com.VBS.Encrypted.Gen.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
93.3%
Link:
https://cyber-fortress.com/docs/result/index.php?id=693907f5bde6a3e5970fabdf
Tags:
obfuscate xtreme shell
Verdict:
Malicious
Labled as:
VBS/Agent.TEM trojan
Link:
https://www.hybrid-analysis.com/sample/734e91a988165f829e532e99404ae00a081be1d1a97c6561cbc5621e0595e572
Verdict:
Malicious
File Type:
vbe
First seen:
2025-12-10T01:32:00Z UTC
Last seen:
2025-12-11T21:51:00Z UTC
Hits:
~1000
Detections:
Trojan-Dropper.Win32.Agent.sb Trojan-Downloader.JS.SLoad.sb Trojan-Downloader.JS.Cryptoload.sb Trojan.VBS.SAgent.sb Trojan.JS.SAgent.sb HEUR:Trojan-Downloader.Script.Generic HEUR:Trojan.VBS.Agent.gen HEUR:Trojan.Script.Generic
Link:
https://opentip.kaspersky.com/734e91a988165f829e532e99404ae00a081be1d1a97c6561cbc5621e0595e572/results?tab=lookup
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1830022
Signature
.NET source code contains potential unpacker
Injects a PE file into a foreign processes
Joe Sandbox ML detected suspicious sample
Malicious sample detected (through community Yara rule)
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: Base64 Encoded PowerShell Command Detected
Sigma detected: HackTool - CrackMapExec PowerShell Obfuscation
Sigma detected: PowerShell Base64 Encoded FromBase64String Cmdlet
Sigma detected: WScript or CScript Dropper
Sigma detected: WScript or CScript Dropper - File
Suricata IDS alerts for network traffic
Suspicious execution chain found
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)
Windows Scripting host queries suspicious COM object (likely to drop second stage)
Windows Shell Script Host drops VBS files
Writes or reads registry keys via WMI
Writes registry values via WMI
Writes to foreign memory regions
Wscript starts Powershell (via cmd or directly)
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1830022 Sample: RFQ 8401.vbe Startdate: 10/12/2025 Architecture: WINDOWS Score: 100 71 yworkteam.com 2->71 73 www.zalukaj.tv 2->73 75 18 other IPs or domains 2->75 87 Suricata IDS alerts for network traffic 2->87 89 Malicious sample detected (through community Yara rule) 2->89 91 Multi AV Scanner detection for submitted file 2->91 93 9 other signatures 2->93 11 wscript.exe 1 2->11         started        14 wscript.exe 8 2 2->14         started        17 svchost.exe 2->17         started        signatures3 process4 dnsIp5 101 Suspicious powershell command line found 11->101 103 Wscript starts Powershell (via cmd or directly) 11->103 20 powershell.exe 11->20         started        23 powershell.exe 11->23         started        25 powershell.exe 11->25         started        31 17 other processes 11->31 67 C:\Users\user\AppData\...\oiwsZxMzOZBNVmO.vbs, ASCII 14->67 dropped 105 Windows Shell Script Host drops VBS files 14->105 107 Windows Scripting host queries suspicious COM object (likely to drop second stage) 14->107 109 Suspicious execution chain found 14->109 111 2 other signatures 14->111 27 powershell.exe 11 14->27         started        29 WmiPrvSE.exe 285 14->29         started        69 127.0.0.1 unknown unknown 17->69 file6 signatures7 process8 signatures9 33 MSBuild.exe 20->33         started        36 conhost.exe 20->36         started        38 conhost.exe 23->38         started        40 MSBuild.exe 23->40         started        42 conhost.exe 25->42         started        44 MSBuild.exe 25->44         started        95 Writes to foreign memory regions 27->95 97 Injects a PE file into a foreign processes 27->97 46 MSBuild.exe 27->46         started        48 conhost.exe 27->48         started        50 33 other processes 31->50 process10 signatures11 52 7YymXaUI7s.exe 33->52 injected 83 Maps a DLL or memory area into another process 46->83 85 Unusual module load detection (module proxying) 46->85 55 lVVe9hSE.exe 46->55 injected process12 signatures13 57 print.exe 52->57         started        99 Maps a DLL or memory area into another process 55->99 59 print.exe 13 55->59         started        process14 signatures15 113 Tries to steal Mail credentials (via file / registry access) 59->113 115 Tries to harvest and steal browser information (history, passwords, etc) 59->115 117 Modifies the context of a thread in another process (thread injection) 59->117 119 4 other signatures 59->119 62 2qUXb3EswoH.exe 59->62 injected 65 firefox.exe 59->65         started        process16 dnsIp17 77 www.vanelo.live 203.161.58.88, 49710, 49711, 49712 VNPT-AS-VNVNPTCorpVN Malaysia 62->77 79 telperform.com 15.197.225.128, 49689, 49698, 49699 TANDEMUS United States 62->79 81 7 other IPs or domains 62->81
Verdict:
Malware
YARA:
1 match(es)
Tags:
DeObfuscated Obfuscated T1059.005 VBScript VBScript Encoded WScript.Shell
Link:
https://app.malva.re/file/e101fd22b6c28e220a001a225754517f
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/734e91a988165f829e532e99404ae00a081be1d1a97c6561cbc5621e0595e572/
Verdict:
Malicious
Threat:
Trojan-Downloader.JS.SLoad
Link:
https://tip.neiki.dev/file/734e91a988165f829e532e99404ae00a081be1d1a97c6561cbc5621e0595e572
Threat name:
Script-WScript.Backdoor.FormBook
Create hunting rule
Status:
Malicious
First seen:
2025-12-10 05:40:44 UTC
File Type:
Text
AV detection:
10 of 24 (41.67%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=onhjdkmiczpyfhstf2muasxabiebxyorvf6gkyolyvrb4bmv4vza._file
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook execution persistence rat spyware stealer trojan
Link:
https://tria.ge/reports/251210-gc4egac17f/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
Enumerates physical storage devices
Suspicious use of SetThreadContext
Checks computer location settings
Command and Scripting Interpreter: PowerShell
Formbook payload
Formbook
Formbook family
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/734e91a98816/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Legit
Score:
0.00
Link:
https://yomi.yoroi.company/submissions/734e91a988165f829e532e99404ae00a081be1d1a97c6561cbc5621e0595e572

File information

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

Comments