MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 57b298eccff01459346ef1082ff698a7e5f2573be3a87d0ffaf41923254e2083. 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 18 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 57b298eccff01459346ef1082ff698a7e5f2573be3a87d0ffaf41923254e2083
SHA3-384 hash: 6083815df6f1faf3c604eb71b963c3477705140a8cd9a946c03fe343033264609f21a0985b3737065e2c6b942f9f14e3
SHA1 hash: 464a91c03bc01db3d758f22d538a4b37001232e2
MD5 hash: 90645df03b12eaa987e9c74c494dff4b
humanhash: twenty-finch-fanta-yankee
File name:rck8890.VBE
Download: download sample
Signature MassLogger
Create hunting rule
File size:559'417 bytes
First seen:2025-10-14 13:35:46 UTC
Last seen:2025-10-20 10:43:16 UTC
File type:Visual Basic Script (vbe) vbe
MIME type:text/plain
ssdeep 12288:VwdaSHhBtk7ZvIbZ8GhhRCxg9VOz9UEv5yXAPRTHTJn:VoXtwgbZ8gUg9VfEhyXOtHTJn
Threatray 1'379 similar samples on MalwareBazaar
TLSH T188C402258DC46F79CBE80A1C90BE150ED3F05A8E4066688EFB2FFD4A6FB794842171D5
Magika vba
Reporter abuse_ch
Tags:MassLogger vbe

Intelligence

File Origin
# of uploads :
2
# of downloads :
126
Origin country :
SE SE
Vendor Threat Intelligence
Verdict:
Malicious
Score:
96.5%
Link:
https://cyber-fortress.com/docs/result/index.php?id=68ee51d804e22ce9acda0094
Tags:
agenttesla virus spawn shell
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
base64 evasive obfuscated powershell
Link:
https://www.filescan.io/uploads/68ee51d7275d977204b67c93/reports/dcb9a816-cb66-4630-a716-315ec6973dde/overview
Verdict:
Malicious
Labled as:
GT:VB.AgentTesla.4
Link:
https://www.hybrid-analysis.com/sample/57b298eccff01459346ef1082ff698a7e5f2573be3a87d0ffaf41923254e2083
Verdict:
Malicious
File Type:
js
First seen:
2025-10-14T07:41:00Z UTC
Last seen:
2025-10-16T11:24:00Z UTC
Hits:
~1000
Link:
https://opentip.kaspersky.com/57b298eccff01459346ef1082ff698a7e5f2573be3a87d0ffaf41923254e2083/results?tab=lookup
Result
Threat name:
MSIL Logger, MassLogger RAT
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1794886
Signature
.NET source code references suspicious native API functions
Bypasses PowerShell execution policy
Contains functionality to log keystrokes (.Net Source)
Found malware configuration
Injects a PE file into a foreign processes
Joe Sandbox ML detected suspicious sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
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)
Tries to steal Mail credentials (via file / registry access)
Windows Scripting host queries suspicious COM object (likely to drop second stage)
Writes to foreign memory regions
Yara detected MassLogger RAT
Yara detected MSIL Logger
Yara detected MSILLoadEncryptedAssembly
Yara detected Powershell decode and execute
Yara detected Telegram RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1794886 Sample: rck8890.VBE.vbe Startdate: 14/10/2025 Architecture: WINDOWS Score: 100 33 reallyfreegeoip.org 2->33 35 checkip.dyndns.org 2->35 37 checkip.dyndns.com 2->37 47 Found malware configuration 2->47 49 Malicious sample detected (through community Yara rule) 2->49 51 Multi AV Scanner detection for submitted file 2->51 55 9 other signatures 2->55 9 wscript.exe 1 2->9         started        signatures3 53 Tries to detect the country of the analysis system (by using the IP) 33->53 process4 signatures5 61 Windows Scripting host queries suspicious COM object (likely to drop second stage) 9->61 63 Suspicious execution chain found 9->63 12 cscript.exe 3 9->12         started        process6 file7 31 C:\...\script_9I3WD90Y5EEI_3.599522E+07.ps1, Unicode 12->31 dropped 65 Suspicious powershell command line found 12->65 67 Bypasses PowerShell execution policy 12->67 16 powershell.exe 16 12->16         started        19 conhost.exe 12->19         started        signatures8 process9 signatures10 43 Writes to foreign memory regions 16->43 45 Injects a PE file into a foreign processes 16->45 21 aspnet_compiler.exe 15 2 16->21         started        25 aspnet_compiler.exe 16->25         started        27 aspnet_compiler.exe 16->27         started        29 5 other processes 16->29 process11 dnsIp12 39 checkip.dyndns.com 132.226.8.169, 49721, 80 UTMEMUS United States 21->39 41 reallyfreegeoip.org 172.67.177.134, 443, 49722 CLOUDFLARENETUS United States 21->41 57 Tries to steal Mail credentials (via file / registry access) 21->57 59 Tries to harvest and steal browser information (history, passwords, etc) 21->59 signatures13
Score:
99%
Verdict:
Malware
File Type:
SCRIPT
Link:
https://malprob.io/report/57b298eccff01459346ef1082ff698a7e5f2573be3a87d0ffaf41923254e2083
Gathering data
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/57b298eccff01459346ef1082ff698a7e5f2573be3a87d0ffaf41923254e2083/
Threat name:
Script-WScript.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2025-10-14 11:24:35 UTC
File Type:
Text (VBS)
AV detection:
8 of 24 (33.33%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=k6zjr3gp6akfsndo6eec75uyu7s7evz34ouh2d726qmsgjkoecbq._file
Verdict:
malicious
Label(s):
novastealer
Create hunting rule
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273c5c5cef2d37aca6f8279bfc4e2590e8da523c2e1e3ffb54cb9cc14eee9bcd
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c6a42e14c36c380762a8073f3cb76eaaed22afc713a0561a79aec5e5abef021e
MassLogger
error
MassLogger
+ 1'369 additional samples on MalwareBazaar
Result
Malware family:
masslogger
Create hunting rule
Score:
  10/10
Tags:
family:masslogger collection discovery execution spyware stealer
Link:
https://tria.ge/reports/251014-qwg51sgy5e/
Behaviour
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
Suspicious use of SetThreadContext
Accesses Microsoft Outlook profiles
Looks up external IP address via web service
Checks computer location settings
Command and Scripting Interpreter: PowerShell
MassLogger
Masslogger family
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
Create hunting rule
Rule name:crime_snake_keylogger
Create hunting rule
Author:Rony (r0ny_123)
Description:Detects Snake keylogger payload
Rule name:DetectEncryptedVariants
Create hunting rule
Author:Zinyth
Description:Detects 'encrypted' in ASCII, Unicode, base64, or hex-encoded
Rule name:detect_tiny_vbs
Create hunting rule
Author:daniyyell
Description:Detects tiny VBS delivery technique
Rule name:INDICATOR_SUSPICIOUS_Binary_References_Browsers
Create hunting rule
Author:ditekSHen
Description:Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers.
Rule name:INDICATOR_SUSPICIOUS_EXE_TelegramChatBot
Create hunting rule
Author:ditekSHen
Description:Detects executables using Telegram Chat Bot
Rule name:MAL_Envrial_Jan18_1
Create hunting rule
Author:Florian Roth (Nextron Systems)
Description:Detects Encrial credential stealer malware
Reference:https://twitter.com/malwrhunterteam/status/953313514629853184
Rule name:MAL_Envrial_Jan18_1_RID2D8C
Create hunting rule
Author:Florian Roth
Description:Detects Encrial credential stealer malware
Reference:https://twitter.com/malwrhunterteam/status/953313514629853184
Rule name:masslogger_gcch
Create hunting rule
Author:govcert_ch
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:RANSOMWARE
Create hunting rule
Author:ToroGuitar
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:Sus_CMD_Powershell_Usage
Create hunting rule
Author:XiAnzheng
Description:May Contain(Obfuscated or no) Powershell or CMD Command that can be abused by threat actor(can create FP)
Rule name:telegram_bot_api
Create hunting rule
Author:rectifyq
Description:Detects file containing Telegram Bot API
Rule name:Windows_Trojan_SnakeKeylogger_af3faa65
Create hunting rule
Author:Elastic Security
Rule name:win_masslogger_w0
Create hunting rule
Author:govcert_ch

File information

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

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