MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b8ceae46f1e55b2cdcbb4a5681e4ec73dc2e3981b79cc7d4097a48e38a835467. 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



MassLogger


Vendor detections: 11


Intelligence 11 IOCs YARA 1 File information Comments

SHA256 hash: b8ceae46f1e55b2cdcbb4a5681e4ec73dc2e3981b79cc7d4097a48e38a835467
SHA3-384 hash: 533f9554f640ad827b5c3d4c9a4127c07a359c9d90e4162c0c472f2e5f127ddaeae09ca6cb47dda445d54846899842a3
SHA1 hash: cf35ea1824eb6302c3c096be5ebc9d4359a9e361
MD5 hash: 753719d2b51100110b5211c4680d7a81
humanhash: yellow-maine-king-twelve
File name:Invoice-01232353.vbs
Download: download sample
Signature MassLogger
File size:94'301 bytes
First seen:2025-02-26 08:54:18 UTC
Last seen:Never
File type:Visual Basic Script (vbs) vbs
MIME type:text/plain
ssdeep 1536:/dw0i5qI51SSpZhFgwYWgXgdyhp2FgayeSxpP+vPMZVNt0fSE6gUXAXbAiCsj9Pa:m0ij5VbgXGyhp2Frylx0XMZV8bv5a
Threatray 473 similar samples on MalwareBazaar
TLSH T1F993E738EEA9BDC1033673F056693749928F4B23A5601B6CF9DE049EDF3A148DBB5148
Magika vba
Reporter abuse_ch
Tags:MassLogger vbs

Intelligence


File Origin
# of uploads :
1
# of downloads :
83
Origin country :
NL NL
Vendor Threat Intelligence
Verdict:
Malicious
Score:
94.9%
Tags:
obfuscate autorun xtreme sage
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
masquerade obfuscated obfuscated
Result
Verdict:
MALICIOUS
Details
Base64 Encoded Powershell Directives
Detected one or more base64 encoded Powershell directives.
Result
Threat name:
MSIL Logger, MassLogger RAT
Detection:
malicious
Classification:
troj.spyw.expl.evad
Score:
100 / 100
Signature
.NET source code contains a sample name check
.NET source code contains potential unpacker
.NET source code references suspicious native API functions
Bypasses PowerShell execution policy
Contains functionality to log keystrokes (.Net Source)
Found malware configuration
Found suspicious powershell code related to unpacking or dynamic code loading
Joe Sandbox ML detected suspicious sample
Malicious sample detected (through community Yara rule)
Sample has a suspicious name (potential lure to open the executable)
Sigma detected: Base64 Encoded PowerShell Command Detected
Sigma detected: Drops script at startup location
Sigma detected: Malicious Base64 Encoded PowerShell Keywords in Command Lines
Sigma detected: PowerShell Base64 Encoded FromBase64String Cmdlet
Sigma detected: PowerShell Base64 Encoded Invoke Keyword
Sigma detected: Suspicious PowerShell Parameter Substring
Sigma detected: WScript or CScript Dropper
Suspicious execution chain found
Suspicious powershell command line found
Tries to detect the country of the analysis system (by using the IP)
Tries to harvest and steal browser information (history, passwords, etc)
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 MassLogger RAT
Yara detected MSIL Logger
Yara detected Powershell decode and execute
Yara detected Telegram RAT
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1624452 Sample: Invoice-01232353.vbs Startdate: 26/02/2025 Architecture: WINDOWS Score: 100 68 reallyfreegeoip.org 2->68 70 checkip.dyndns.org 2->70 72 2 other IPs or domains 2->72 84 Found malware configuration 2->84 86 Malicious sample detected (through community Yara rule) 2->86 88 Yara detected MSIL Logger 2->88 92 16 other signatures 2->92 9 wscript.exe 2 2->9         started        12 cmd.exe 2->12         started        14 cmd.exe 1 2->14         started        16 7 other processes 2->16 signatures3 90 Tries to detect the country of the analysis system (by using the IP) 68->90 process4 signatures5 100 VBScript performs obfuscated calls to suspicious functions 9->100 102 Wscript starts Powershell (via cmd or directly) 9->102 104 Windows Scripting host queries suspicious COM object (likely to drop second stage) 9->104 106 Suspicious execution chain found 9->106 18 cmd.exe 1 9->18         started        21 cmd.exe 12->21         started        23 conhost.exe 12->23         started        25 cmd.exe 1 14->25         started        27 conhost.exe 14->27         started        29 cmd.exe 1 16->29         started        31 cmd.exe 1 16->31         started        33 cmd.exe 1 16->33         started        35 11 other processes 16->35 process6 signatures7 78 Suspicious powershell command line found 18->78 80 Wscript starts Powershell (via cmd or directly) 18->80 82 Bypasses PowerShell execution policy 18->82 37 cmd.exe 2 18->37         started        40 conhost.exe 18->40         started        42 powershell.exe 21->42         started        44 conhost.exe 21->44         started        46 2 other processes 25->46 49 2 other processes 29->49 51 2 other processes 31->51 53 2 other processes 33->53 55 8 other processes 35->55 process8 file9 94 Suspicious powershell command line found 37->94 96 Wscript starts Powershell (via cmd or directly) 37->96 57 powershell.exe 15 19 37->57         started        62 conhost.exe 37->62         started        98 Tries to harvest and steal browser information (history, passwords, etc) 42->98 66 C:\Users\user\...\StartupScript_82ca6277.cmd, ASCII 46->66 dropped signatures10 process11 dnsIp12 74 checkip.dyndns.com 193.122.6.168, 49701, 49767, 49842 ORACLE-BMC-31898US United States 57->74 76 reallyfreegeoip.org 104.21.64.1, 443, 49702, 49773 CLOUDFLARENETUS United States 57->76 64 C:\Users\user\...\StartupScript_c2c17fc0.cmd, ASCII 57->64 dropped 108 Found suspicious powershell code related to unpacking or dynamic code loading 57->108 file13 signatures14
Threat name:
Script-WScript.Spyware.AsyncRAT
Status:
Malicious
First seen:
2025-02-26 07:02:23 UTC
AV detection:
3 of 38 (7.89%)
Threat level:
  2/5
Result
Malware family:
n/a
Score:
  10/10
Tags:
collection discovery evasion execution trojan
Behaviour
Suspicious behavior: CmdExeWriteProcessMemorySpam
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
outlook_office_path
outlook_win_path
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Accesses Microsoft Outlook profiles
Looks up external IP address via web service
Checks computer location settings
Drops startup file
Blocklisted process makes network request
Command and Scripting Interpreter: PowerShell
Modifies Windows Defender DisableAntiSpyware settings
Please note that we are no longer able to provide a coverage score for Virus Total.

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:Base64_Encoded_Powershell_Directives

File information


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

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