Overview

overview

10

Static

static

Sep_offerA...df.exe

windows7_x64

10

Sep_offerA...df.exe

windows10_x64

10

Analysis

  • max time kernel
    21s
  • max time network
    113s
  • platform
    windows7_x64
  • resource
    win7v200722
  • submitted
    13/10/2020, 17:54

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General

  • Target
    Sep_offerAlumi_pdf.exe
  • Size 1006KB
  • Sample201013-97xbjrmr1n
  • SHA256 74162983ed626c05ba65a31fa71a81ff2bc4cabcfe5019a94f63dc32ae873f23
  • MD5 SHA1 SHA512
Score
10/10
upxspywarestealermasslogger

Malware Config

Signatures

  • MassLogger

    Masslogger is a .NET stealer targeting passwords from browsers, email and cryptocurrency clients.

    stealerspywaremasslogger
  • MassLogger Main Payload 3 IoCs
  • UPX packed file 3 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

    upx
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

    spyware
  • Looks up external IP address via web service 1 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 5 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Sep_offerAlumi_pdf.exe
    "C:\Users\Admin\AppData\Local\Temp\Sep_offerAlumi_pdf.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of WriteProcessMemory
    PID:1304
    • C:\Users\Admin\AppData\Local\Temp\Sep_offerAlumi_pdf.exe
      "C:\Users\Admin\AppData\Local\Temp\Sep_offerAlumi_pdf.exe"
      2⤵
      • Checks computer location settings
      • Suspicious behavior: AddClipboardFormatListener
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:1536

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        memory/1304-0-0x0000000000400000-0x0000000000501000-memory.dmp
        Download

        memory/1536-1-0x0000000000400000-0x000000000051F000-memory.dmp
        Download

        memory/1536-3-0x0000000000400000-0x000000000051F000-memory.dmp
        Download

        memory/1536-4-0x0000000000400000-0x000000000051F000-memory.dmp
        Download

        memory/1536-5-0x0000000000580000-0x0000000000606000-memory.dmp
        Download

        memory/1536-6-0x0000000000642000-0x0000000000643000-memory.dmp
        Download

        memory/1536-7-0x0000000000250000-0x00000000002D1000-memory.dmp
        Download

        memory/1536-9-0x0000000074870000-0x0000000074F5E000-memory.dmp
        Download