Analysis

  • max time kernel
    133s
  • max time network
    148s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220901-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
  • submitted
    27-01-2023 12:46

General

  • Target

    23ee744fa24aaada6ab0a81166c2f5466d29d502.exe

  • Size

    477KB

  • MD5

    447f1d5a645314beb0b1d6b0f2f5119f

  • SHA1

    23ee744fa24aaada6ab0a81166c2f5466d29d502

  • SHA256

    850f818aca36188fff35a492275cd63ba81f6e48263faa669fb5e192165f2f92

  • SHA512

    2a4ed5f9a933ef0330c81672c17623143ee0c3693d6c56c85632c0bac2b7a8fb049bae0af904a1bd2a16db8ac338d78d0928e0edc7f5d866170d25c19407e752

  • SSDEEP

    3072:N36LY3qIwBzFyIR+DSbhsR2OsHas+8yqB1LuiCx8V8rIiJzQvstptE8z0N:N36hWsHtlLv8EiFES0

Malware Config

Signatures

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Reads data files stored by FTP clients 2 TTPs

    Tries to access configuration files associated with programs like FileZilla.

  • Reads user/profile data of local email clients 2 TTPs

    Email clients store some user data on disk where infostealers will often target it.

  • Reads user/profile data of web browsers 2 TTPs

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

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Looks up external IP address via web service 2 IoCs

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

  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Gathers network information 2 TTPs 2 IoCs

    Uses commandline utility to view network configuration.

  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 26 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\23ee744fa24aaada6ab0a81166c2f5466d29d502.exe
    "C:\Users\Admin\AppData\Local\Temp\23ee744fa24aaada6ab0a81166c2f5466d29d502.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4204
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c ipconfig/release
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:424
      • C:\Windows\SysWOW64\ipconfig.exe
        ipconfig /release
        3⤵
        • Gathers network information
        PID:800
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ENC cwB0AGEAcgB0AC0AcwBsAGUAZQBwACAALQBzAGUAYwBvAG4AZABzACAAMgAwAA==
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:744
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c ipconfig/renew
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1800
      • C:\Windows\SysWOW64\ipconfig.exe
        ipconfig /renew
        3⤵
        • Gathers network information
        PID:5004
    • C:\Users\Admin\AppData\Local\Temp\23ee744fa24aaada6ab0a81166c2f5466d29d502.exe
      C:\Users\Admin\AppData\Local\Temp\23ee744fa24aaada6ab0a81166c2f5466d29d502.exe
      2⤵
        PID:1740
      • C:\Users\Admin\AppData\Local\Temp\23ee744fa24aaada6ab0a81166c2f5466d29d502.exe
        C:\Users\Admin\AppData\Local\Temp\23ee744fa24aaada6ab0a81166c2f5466d29d502.exe
        2⤵
        • Accesses Microsoft Outlook profiles
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        • outlook_office_path
        • outlook_win_path
        PID:4784

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Execution

    Command-Line Interface

    1
    T1059

    Persistence

    Registry Run Keys / Startup Folder

    1
    T1060

    Defense Evasion

    Modify Registry

    1
    T1112

    Credential Access

    Credentials in Files

    3
    T1081

    Discovery

    Query Registry

    1
    T1012

    System Information Discovery

    3
    T1082

    Collection

    Data from Local System

    3
    T1005

    Email Collection

    1
    T1114

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\23ee744fa24aaada6ab0a81166c2f5466d29d502.exe.log
      Filesize

      1KB

      MD5

      13b08803e0bb671919478d178f19d6e2

      SHA1

      9f8c1d2a16446f9ee1e3244f48d372aecccf4dd9

      SHA256

      bab001392f6a9fc257a302cf557c9f571c7b352f41aedda14b049976ee5fd1c9

      SHA512

      2fe208b9958329734a5c6ce6aa526ee20d2c02d351927e75f85f27c2ffdc3c9e3413c17dc6e0dd9eefc3fb379e936b6bef2984a6e44ffafdc7600f590398016f

    • memory/424-134-0x0000000000000000-mapping.dmp
    • memory/744-142-0x00000000074D0000-0x0000000007B4A000-memory.dmp
      Filesize

      6.5MB

    • memory/744-136-0x0000000000000000-mapping.dmp
    • memory/744-137-0x0000000002670000-0x00000000026A6000-memory.dmp
      Filesize

      216KB

    • memory/744-138-0x0000000004FD0000-0x00000000055F8000-memory.dmp
      Filesize

      6.2MB

    • memory/744-139-0x0000000004EB0000-0x0000000004F16000-memory.dmp
      Filesize

      408KB

    • memory/744-140-0x0000000005600000-0x0000000005666000-memory.dmp
      Filesize

      408KB

    • memory/744-141-0x0000000005C70000-0x0000000005C8E000-memory.dmp
      Filesize

      120KB

    • memory/744-143-0x0000000006140000-0x000000000615A000-memory.dmp
      Filesize

      104KB

    • memory/800-135-0x0000000000000000-mapping.dmp
    • memory/1740-148-0x0000000000000000-mapping.dmp
    • memory/1800-146-0x0000000000000000-mapping.dmp
    • memory/4204-145-0x0000000007600000-0x0000000007BA4000-memory.dmp
      Filesize

      5.6MB

    • memory/4204-144-0x0000000005B70000-0x0000000005C02000-memory.dmp
      Filesize

      584KB

    • memory/4204-132-0x0000000000750000-0x00000000007CC000-memory.dmp
      Filesize

      496KB

    • memory/4204-133-0x0000000005A80000-0x0000000005AA2000-memory.dmp
      Filesize

      136KB

    • memory/4784-149-0x0000000000000000-mapping.dmp
    • memory/4784-150-0x0000000000400000-0x0000000000430000-memory.dmp
      Filesize

      192KB

    • memory/4784-152-0x0000000006A80000-0x0000000006A8A000-memory.dmp
      Filesize

      40KB

    • memory/4784-153-0x0000000006B30000-0x0000000006B80000-memory.dmp
      Filesize

      320KB

    • memory/4784-154-0x0000000006D50000-0x0000000006F12000-memory.dmp
      Filesize

      1.8MB

    • memory/5004-147-0x0000000000000000-mapping.dmp