Analysis

  • max time kernel
    24s
  • max time network
    114s
  • platform
    windows10_x64
  • resource
    win10v20201028
  • submitted
    28/11/2020, 11:22

General

  • Target

    1e2b0143e30d4e5af0cfa521ad65c169.exe

  • Size

    583KB

  • MD5

    1e2b0143e30d4e5af0cfa521ad65c169

  • SHA1

    3bdb4191d641c0a7cb3b1a51bda0e8c50b0e517e

  • SHA256

    7ad2fda0cceebf5c2c83f30d7a1d38a25b74726f03099bb1a97371373d4eadcf

  • SHA512

    7c59904e76d93c6173f917ad8ffd88eb9ca1f6e221d3c87ffe55a66e86843ac06aad95aaf83159dc95600fd011502dd4b93cf5ef9f5b1b70a89c1b33f24e4b76

Malware Config

Extracted

Path

C:\Users\Admin\AppData\Local\7C372DB998\Log.txt

Family

masslogger

Ransom Note
<|| v2.1.0.0 ||> User Name: Admin IP: 154.61.71.13 Location: United States Windows OS: Microsoft Windows 10 Enterprise 64bit Windows Serial Key: W269N-WFGWX-YVC9B-4J6C9-T83GX CPU: Persocon Processor 2.5+ GPU: Microsoft Basic Display Adapter AV: NA Screen Resolution: 1280x720 Current Time: 11/28/2020 12:25:58 PM MassLogger Started: 11/28/2020 12:25:54 PM Interval: 2 hour MassLogger Process: C:\Users\Admin\AppData\Local\Temp\1e2b0143e30d4e5af0cfa521ad65c169.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.

  • MassLogger Main Payload 2 IoCs
  • 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.

  • Adds Run key to start application 2 TTPs 1 IoCs
  • 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 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\1e2b0143e30d4e5af0cfa521ad65c169.exe
    "C:\Users\Admin\AppData\Local\Temp\1e2b0143e30d4e5af0cfa521ad65c169.exe"
    1⤵
    • Adds Run key to start application
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:640
    • C:\Users\Admin\AppData\Local\Temp\1e2b0143e30d4e5af0cfa521ad65c169.exe
      "C:\Users\Admin\AppData\Local\Temp\1e2b0143e30d4e5af0cfa521ad65c169.exe"
      2⤵
        PID:4004
      • C:\Users\Admin\AppData\Local\Temp\1e2b0143e30d4e5af0cfa521ad65c169.exe
        "C:\Users\Admin\AppData\Local\Temp\1e2b0143e30d4e5af0cfa521ad65c169.exe"
        2⤵
        • Checks computer location settings
        • Suspicious behavior: AddClipboardFormatListener
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        PID:1068

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/640-11-0x0000000005790000-0x0000000005791000-memory.dmp

      Filesize

      4KB

    • memory/640-3-0x0000000000970000-0x0000000000971000-memory.dmp

      Filesize

      4KB

    • memory/640-6-0x00000000052B0000-0x00000000052B1000-memory.dmp

      Filesize

      4KB

    • memory/640-7-0x0000000005240000-0x0000000005241000-memory.dmp

      Filesize

      4KB

    • memory/640-8-0x0000000005480000-0x00000000054F5000-memory.dmp

      Filesize

      468KB

    • memory/640-9-0x0000000005510000-0x00000000055A4000-memory.dmp

      Filesize

      592KB

    • memory/640-10-0x0000000007790000-0x0000000007791000-memory.dmp

      Filesize

      4KB

    • memory/640-2-0x0000000073F80000-0x000000007466E000-memory.dmp

      Filesize

      6.9MB

    • memory/640-5-0x00000000057B0000-0x00000000057B1000-memory.dmp

      Filesize

      4KB

    • memory/640-12-0x0000000007810000-0x0000000007826000-memory.dmp

      Filesize

      88KB

    • memory/1068-16-0x0000000073F80000-0x000000007466E000-memory.dmp

      Filesize

      6.9MB

    • memory/1068-13-0x0000000000400000-0x000000000049A000-memory.dmp

      Filesize

      616KB

    • memory/1068-20-0x0000000005800000-0x0000000005801000-memory.dmp

      Filesize

      4KB

    • memory/1068-21-0x00000000030B0000-0x00000000030EE000-memory.dmp

      Filesize

      248KB

    • memory/1068-22-0x00000000058A0000-0x00000000058A1000-memory.dmp

      Filesize

      4KB

    • memory/1068-25-0x0000000008300000-0x0000000008301000-memory.dmp

      Filesize

      4KB

    • memory/1068-26-0x0000000007430000-0x000000000743F000-memory.dmp

      Filesize

      60KB