MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 acf8ef109b3420c6c605ff207d0afaee77bcba9c0cb7f714960346d080478b25. 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: 9


Intelligence 9 IOCs YARA 1 File information Comments
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SHA256 hash: acf8ef109b3420c6c605ff207d0afaee77bcba9c0cb7f714960346d080478b25
SHA3-384 hash: 8063ae35fc2f838636aa69b31d8c716d16e1f1f50c00d114623bf747f95b1c435c4d3804a0e52b66bfc0e99ea245ed9a
SHA1 hash: f483a8df5b8675489f7bfe4070c0267fac9459d0
MD5 hash: 7128308b92e64e9164c7f9c28cf99e33
humanhash: twelve-magazine-quebec-jig
File name:rrc778932.hta
Download: download sample
Signature MassLogger
Create hunting rule
File size:2'316'856 bytes
First seen:2026-05-04 12:41:31 UTC
Last seen:Never
File type:HTML Application (hta) hta
MIME type:text/csv
ssdeep 768:RYKVeDKKVVVDzkVzkDKKTKVKVDHVDK/DeKzkKassV/VXsaV/VesKV/KKK8K8KWp+:Ru
TLSH T13EB534C090A915DC6888ADA056F1ED58F648E73D7A239CF5A815EFFAB50D34C2CD2C36
Magika javascript
Reporter lowmal3
Tags:hta MassLogger

Intelligence

File Origin
# of uploads :
1
# of downloads :
12
Origin country :
DE DE
Vendor Threat Intelligence
Gathering data
Detection(s):
SecuriteInfo.com.VBS.Starter.519.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Labled as:
GT:JS.Downloader.1
Link:
https://www.hybrid-analysis.com/sample/acf8ef109b3420c6c605ff207d0afaee77bcba9c0cb7f714960346d080478b25
Verdict:
Malicious
File Type:
hta
First seen:
2026-05-04T08:59:00Z UTC
Last seen:
2026-05-05T11:07:00Z UTC
Hits:
~1000
Detections:
Trojan-Downloader.Agent.HTTP.C&C BSS:Trojan.Win32.Generic Trojan.JS.SAgent.sb HEUR:Trojan.Script.Generic
Link:
https://opentip.kaspersky.com/acf8ef109b3420c6c605ff207d0afaee77bcba9c0cb7f714960346d080478b25/results?tab=lookup
Result
Threat name:
MSIL Logger, MassLogger RAT
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1908229
Signature
.NET source code references suspicious native API functions
Antivirus detection for URL or domain
Bypasses PowerShell execution policy
Contains functionality to log keystrokes (.Net Source)
Creates processes via WMI
Detected large data written to user environment variables, potentially indicating payload staging for fileless execution
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: Suspicious MSHTA Child Process
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)
Writes to foreign memory regions
Yara detected MassLogger RAT
Yara detected MSIL Logger
Yara detected Powershell download and execute
Yara detected Telegram RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1908229 Sample: rrc778932.hta Startdate: 04/05/2026 Architecture: WINDOWS Score: 100 23 reallyfreegeoip.org 2->23 25 emaisboletos.com 2->25 27 2 other IPs or domains 2->27 41 Found malware configuration 2->41 43 Malicious sample detected (through community Yara rule) 2->43 45 Antivirus detection for URL or domain 2->45 49 9 other signatures 2->49 8 mshta.exe 1 2->8         started        signatures3 47 Tries to detect the country of the analysis system (by using the IP) 23->47 process4 signatures5 51 Suspicious powershell command line found 8->51 53 Bypasses PowerShell execution policy 8->53 55 Creates processes via WMI 8->55 57 Detected large data written to user environment variables, potentially indicating payload staging for fileless execution 8->57 11 powershell.exe 14 15 8->11         started        process6 dnsIp7 29 104.249.10.169, 49723, 80 SEABONE-NETTELECOMITALIASPARKLESpAIT United States 11->29 31 emaisboletos.com 217.21.77.24, 443, 49717 IPPLANET-ASIL United Kingdom 11->31 59 Writes to foreign memory regions 11->59 61 Injects a PE file into a foreign processes 11->61 15 CasPol.exe 15 4 11->15         started        19 conhost.exe 11->19         started        21 CasPol.exe 11->21         started        signatures8 process9 dnsIp10 33 checkip.dyndns.com 132.226.8.169, 49724, 80 UTMEMUS United States 15->33 35 reallyfreegeoip.org 104.21.67.152, 443, 49725 CLOUDFLARENETUS United States 15->35 37 Tries to steal Mail credentials (via file / registry access) 15->37 39 Tries to harvest and steal browser information (history, passwords, etc) 15->39 signatures11
Score:
77%
Verdict:
Malware
File Type:
SCRIPT
Link:
https://malprob.io/report/acf8ef109b3420c6c605ff207d0afaee77bcba9c0cb7f714960346d080478b25
Verdict:
inconclusive
YARA:
2 match(es)
Tags:
Html
Link:
https://app.malva.re/file/7128308b92e64e9164c7f9c28cf99e33
Gathering data
Verdict:
Malicious
Threat:
Family.EMMENHTAL
Link:
https://tip.neiki.dev/file/acf8ef109b3420c6c605ff207d0afaee77bcba9c0cb7f714960346d080478b25
Threat name:
Script-JS.Downloader.Generic
Create hunting rule
Status:
Suspicious
First seen:
2026-05-04 15:04:48 UTC
File Type:
Binary
AV detection:
5 of 36 (13.89%)
Threat level:
  3/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=vt4o6ee3gqqmnrqf74qh2cx25z33zou4bs37ofewandnbachrmsq._file
Result
Malware family:
masslogger
Create hunting rule
Score:
  10/10
Tags:
family:masslogger collection discovery execution spyware stealer
Link:
https://tria.ge/reports/260504-v7ddescz4m/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
outlook_office_path
outlook_win_path
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Accesses Microsoft Outlook profiles
Looks up external IP address via web service
Badlisted process makes network request
Command and Scripting Interpreter: PowerShell
Family: MassLogger
Process spawned unexpected child process
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: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)

File information

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

Malspam

MassLogger

HTML Application (hta) hta acf8ef109b3420c6c605ff207d0afaee77bcba9c0cb7f714960346d080478b25

(this sample)

  
Delivery method
Distributed via e-mail attachment

Comments