MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a3db99c64b9a79ab584f3e8ec33ca604a6d3148570daec46d19e67546fe0ec4e. 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


Threat unknown


Vendor detections: 9


Intelligence 9 IOCs YARA File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a3db99c64b9a79ab584f3e8ec33ca604a6d3148570daec46d19e67546fe0ec4e
SHA3-384 hash: 608095c3649e5fb902db164ac74e396c975bf5cea5e3f839b74536cf3c8b9e2c2f7eadc7c2abbf269f60c4afd43cde5b
SHA1 hash: 4bad8a215a6ce2b8b3190a8064de3b81421c8c90
MD5 hash: c200e2e4513d57c0fe27bed46d13a68f
humanhash: ceiling-wyoming-two-fruit
File name:RFQ-073638200525.vbs
Download: download sample
File size:675'548 bytes
First seen:2025-05-20 11:44:07 UTC
Last seen:Never
File type:Visual Basic Script (vbs) vbs
MIME type:text/plain
ssdeep 12288:LHf6yqSAhe7JYopD62z8FV/tPFwHyc3PCXZyRdwk7C4fFf:BAIJYopDf4FVT3cfiZgimCwFf
TLSH T1ADE4F23CCBD99DD91357B0D3A8DFA6841224C7E7E2811E1EBD6184AD8174BAFD231728
Magika vba
Reporter abuse_ch
Tags:vbs

Intelligence

File Origin
# of uploads :
1
# of downloads :
81
Origin country :
NL NL
Vendor Threat Intelligence
Detection(s):
SecuriteInfo.com.BAT.Obfus-3.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
96.5%
Link:
https://cyber-fortress.com/docs/result/index.php?id=682c6b1c2f280a98fb423653
Tags:
obfuscate xtreme shell zbot
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
base64 evasive obfuscated powershell
Link:
https://www.filescan.io/uploads/682c6b1c0de036ed65acc77d/reports/ec95104a-b6c1-40ed-8d67-7c6401931b54/overview
Verdict:
Malicious
Labled as:
GT:VB.Zbot.9
Link:
https://www.hybrid-analysis.com/sample/a3db99c64b9a79ab584f3e8ec33ca604a6d3148570daec46d19e67546fe0ec4e
Result
Threat name:
Batch Injector
Create hunting rule
Detection:
malicious
Classification:
troj.adwa.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1694880
Signature
.NET source code contains potential unpacker
.NET source code contains suspicious base64 encoded strings
.NET source code contains very large strings
.NET source code references suspicious native API functions
Bypasses PowerShell execution policy
Drops PE files to the startup folder
Found suspicious powershell code related to unpacking or dynamic code loading
Joe Sandbox ML detected suspicious sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Powershell drops PE file
Powershell is started from unusual location (likely to bypass HIPS)
Reads the Security eventlog
Reads the System eventlog
Renames powershell.exe to bypass HIPS
Sigma detected: Base64 Encoded PowerShell Command Detected
Sigma detected: Files With System Process Name In Unsuspected Locations
Sigma detected: PowerShell Base64 Encoded FromBase64String Cmdlet
Sigma detected: PowerShell Base64 Encoded Invoke Keyword
Sigma detected: Suspicious PowerShell Parameter Substring
Sigma detected: System File Execution Location Anomaly
Sigma detected: WScript or CScript Dropper
Suricata IDS alerts for network traffic
Suspicious execution chain found
Suspicious powershell command line found
VBScript performs obfuscated calls to suspicious functions
Windows Scripting host queries suspicious COM object (likely to drop second stage)
Wscript starts Powershell (via cmd or directly)
Yara detected Batch Injector
Yara detected Powershell decode and execute
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1694880 Sample: RFQ-073638200525.vbs Startdate: 20/05/2025 Architecture: WINDOWS Score: 100 36 thewaters.kozow.com 2->36 48 Suricata IDS alerts for network traffic 2->48 50 Malicious sample detected (through community Yara rule) 2->50 52 Multi AV Scanner detection for submitted file 2->52 54 14 other signatures 2->54 9 wscript.exe 2 2->9         started        12 powershell.exe 26 2->12         started        14 svchost.exe 1 1 2->14         started        signatures3 process4 dnsIp5 60 VBScript performs obfuscated calls to suspicious functions 9->60 62 Wscript starts Powershell (via cmd or directly) 9->62 64 Windows Scripting host queries suspicious COM object (likely to drop second stage) 9->64 66 Suspicious execution chain found 9->66 17 cmd.exe 1 9->17         started        68 Powershell is started from unusual location (likely to bypass HIPS) 12->68 70 Reads the Security eventlog 12->70 72 Reads the System eventlog 12->72 20 conhost.exe 12->20         started        40 127.0.0.1 unknown unknown 14->40 signatures6 process7 signatures8 42 Suspicious powershell command line found 17->42 44 Wscript starts Powershell (via cmd or directly) 17->44 46 Bypasses PowerShell execution policy 17->46 22 cmd.exe 2 17->22         started        25 conhost.exe 17->25         started        process9 signatures10 56 Suspicious powershell command line found 22->56 58 Wscript starts Powershell (via cmd or directly) 22->58 27 powershell.exe 17 22->27         started        32 conhost.exe 22->32         started        process11 dnsIp12 38 thewaters.kozow.com 66.63.187.45, 49686, 5050 ASN-QUADRANET-GLOBALUS United States 27->38 34 C:\Users\user\AppData\...\powershell.exe, PE32+ 27->34 dropped 74 Drops PE files to the startup folder 27->74 76 Renames powershell.exe to bypass HIPS 27->76 78 Found suspicious powershell code related to unpacking or dynamic code loading 27->78 80 Powershell drops PE file 27->80 file13 signatures14
Score:
100%
Verdict:
Malware
File Type:
SCRIPT
Link:
https://malprob.io/report/a3db99c64b9a79ab584f3e8ec33ca604a6d3148570daec46d19e67546fe0ec4e
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/a3db99c64b9a79ab584f3e8ec33ca604a6d3148570daec46d19e67546fe0ec4e/
Threat name:
Script-WScript.Infostealer.Zeus
Create hunting rule
Status:
Malicious
First seen:
2025-05-20 11:42:00 UTC
File Type:
Text (VBS)
AV detection:
8 of 23 (34.78%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=upnztrsltj42wwcph2hmgpfgastngfefodnoyrwrtztvi37a5rha._file
Result
Malware family:
n/a
Score:
  8/10
Tags:
execution pyinstaller spyware stealer
Link:
https://tria.ge/reports/250520-nwbl5acj4x/
Behaviour
Kills process with taskkill
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Detects Pyinstaller
Enumerates physical storage devices
Command and Scripting Interpreter: PowerShell
Checks computer location settings
Drops startup file
Executes dropped EXE
Loads dropped DLL
Reads user/profile data of web browsers
Blocklisted process makes network request
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/a3db99c64b9a/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/a3db99c64b9a79ab584f3e8ec33ca604a6d3148570daec46d19e67546fe0ec4e

File information

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

Comments