Overview

overview

10

Static

static

20200408__...LS.exe

windows7_x64

10

20200408__...LS.exe

windows10-2004_x64

10

Analysis

  • max time kernel
    45s
  • max time network
    117s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    20-05-2022 14:31

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General

  • Target

    20200408__001003001001.XLS.exe

  • Size

    1.2MB

  • MD5

    8b13b35d3207a2dd036004fa35a91606

  • SHA1

    fd98311b1e629afa8d519a7005b0b9f578006cf9

  • SHA256

    f7c64b437d10f5483b3a78cbf4a08f22cd829c60515c312d2bd21e1a37e250ce

  • SHA512

    156eaf124b66f31274547f31a53863471a853c9afde4787730fb97bd447d933ce4b5d8e0720662480cf65564e1e96ef9325b41b56788a057b4ef1e73b6b48693

Score
10/10
massloggercollectionransomwarespywarestealer

Malware Config

Extracted

Path

C:\Users\Admin\AppData\Local\79FE0CC911\Log.txt

Family

masslogger

Ransom Note
<|| v2.2.0.0 ||> User Name: Admin IP: 154.61.71.51 Location: United States Windows OS: Microsoft Windows 7 Ultimate 64bit Windows Serial Key: D4F6K-QK3RD-TMVMJ-BBMRX-3MBMV CPU: Intel Core Processor (Broadwell) GPU: Standard VGA Graphics Adapter AV: NA Screen Resolution: 1280x720 Current Time: 5/20/2022 3:41:45 PM MassLogger Started: 5/20/2022 3:41:34 PM Interval: 2 hour MassLogger Process: C:\Users\Admin\AppData\Local\Temp\20200408__001003001001.XLS.exe MassLogger Melt: false MassLogger Exit after delivery: false As Administrator: True Processes: <|| WD Exclusion ||> Disabled <|| Binder ||> Disabled <|| Downloader ||> Disabled <|| USB Spread ||> Disabled <|| Window Searcher ||> Disabled <|| Bot Killer ||> Disabled <|| Search And Upload ||> Disabled <|| Telegram Desktop ||> Not Installed <|| Pidgin ||> Not Installed <|| FileZilla ||> Not Installed <|| Discord Tokken ||> Not Installed <|| NordVPN ||> Not Installed <|| Outlook ||> Not Installed <|| FoxMail ||> Not Installed <|| Thunderbird ||> Not Installed <|| FireFox ||> Not Found <|| QQ Browser ||> Not Installed <|| Chromium Recovery ||> Not Installed or Not Found <|| Keylogger And Clipboard ||> NA

Signatures

  • MassLogger

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

    stealerspywaremasslogger
  • MassLogger log file 1 IoCs

    Detects a log file produced by MassLogger.

  • 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.

    spywarestealer
  • Accesses Microsoft Outlook profiles 1 TTPs 35 IoCs
    collection
  • 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 3 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\20200408__001003001001.XLS.exe
    "C:\Users\Admin\AppData\Local\Temp\20200408__001003001001.XLS.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of WriteProcessMemory
    PID:1980
    • C:\Users\Admin\AppData\Local\Temp\20200408__001003001001.XLS.exe
      "C:\Users\Admin\AppData\Local\Temp\20200408__001003001001.XLS.exe"
      2⤵
      • Checks computer location settings
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: AddClipboardFormatListener
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • outlook_office_path
      • outlook_win_path
      PID:1912

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/1912-58-0x0000000001FF0000-0x00000000020B4000-memory.dmp

    Filesize

    784KB

    Download

  • memory/1912-57-0x0000000001FF0000-0x00000000020B4000-memory.dmp

    Filesize

    784KB

    Download

  • memory/1912-60-0x0000000004B60000-0x0000000004BD8000-memory.dmp

    Filesize

    480KB

    Download

  • memory/1912-61-0x0000000004C85000-0x0000000004C96000-memory.dmp

    Filesize

    68KB

    Download

  • memory/1912-62-0x0000000005CC0000-0x0000000005CD4000-memory.dmp

    Filesize

    80KB

    Download

  • memory/1980-54-0x00000000768D1000-0x00000000768D3000-memory.dmp

    Filesize

    8KB

    Download

  • memory/1980-56-0x0000000000400000-0x0000000000546000-memory.dmp

    Filesize

    1.3MB

    Download