MassLogger | Threat Level: medium | Type: Infostealer

Cryptographic Identifiers

SHA256c2c513212de00dc532e64330d46cc71e78224b591f9a69a720da813000ad54a3
MD5d83daddc131283327993e318b1ea1aee
File Typevbs
Size161.7 KB
First Seen2025-07-13
File NameBBG Credit-ICICI.vbs
TagsMassLogger, vbs

Malware Family: MassLogger

MassLogger, email keylogger'dır.

TypeInfostealer
Programming LanguageC#/.NET
Target PlatformWindows
C2 ProtocolSMTP/FTP
PurposeEmail keylogger
First Seen Year2020

Threat Indicators (IOC)

  • SHA256: c2c513212de00dc532e64330d46cc71e78224b591f9a69a720da813000ad54a3
  • MD5: d83daddc131283327993e318b1ea1aee

You can verify all hash values of this sample on VirusTotal.

System Cleanup Guide

  1. Disconnect the system from the network immediately
  2. Yeni bir cihazdan banka hesabı, sosyal medya ve e-posta şifrelerini değiştirin
  3. Move crypto wallets to a new address and abandon the old ones
  4. Start a full scan with up-to-date antivirus
  5. Clear saved browser passwords and enable 2FA
  6. Sign out of all sessions on every affected service

YARA Rule Hints

rule MassLogger_SHA256 {
    meta:
        description = "MassLogger sample: c2c513212de00dc5"
        threat_level = "medium"
        first_seen = "2025-07-13"
    condition:
        hash.sha256(0, filesize) == "c2c513212de00dc532e64330d46cc71e78224b591f9a69a720da813000ad54a3"
}

MassLogger — Malware Profile

MassLogger credential stealer. PT2600000043.js Portekiz fatura lurü. CommonJS obfuscation. dispatch configuration data.

Malware Type
Infostealer
Programming Language
C#/.NET
C2 Protocol
SMTP/FTP
Target Systems
Windows

Capabilities & Behavior

Tarayıcı Kimlik Bilgileri
Çerez Hırsızlığı
Kripto Cüzdan Çalma
Sistem Bilgisi
Ekran Görüntüsü
FTP/SSH İstemci Şifreleri
E-posta İstemcisi Çalma
Veri Sızıntısı

IOC List (2 indicators)

IOC — MassLogger
# SHA256 c2c513212de00dc532e64330d46cc71e78224b591f9a69a720da813000ad54a3 # MD5 d83daddc131283327993e318b1ea1aee
TypeValueNote
sha256 c2c513212de00dc532e64330d46cc71e78224b591f9a69a720da813000ad54a3 Sample:MassLogger
md5 d83daddc131283327993e318b1ea1aee Sample:MassLogger
Tags
massloggerinfostealermalwaremediumsha256hash-analizi