Analysis

  • max time kernel
    150s
  • max time network
    149s
  • platform
    windows7_x64
  • resource
    win7v20201028
  • submitted
    17-03-2021 08:21

General

  • Target

    c481259ad199b773339f168902cc7437.exe

  • Size

    267KB

  • MD5

    c481259ad199b773339f168902cc7437

  • SHA1

    4c9a81f2a9167f953109eddbd141ea8d078d13e9

  • SHA256

    1da5a6aac7197d1fcadef018775831885b715d5c37a3115777dc5c717ce6e0da

  • SHA512

    5bc8965e9aa550f3e37b312f3d4a6854b0002f42b5a111087a754e3ed7cdcf957b40f6bebc389b405317b46eeaed88132545732daac74723945591ae38cdcabf

Score
7/10

Malware Config

Signatures

  • Reads user/profile data of web browsers 2 TTPs

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

  • Looks up external IP address via web service 3 IoCs

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

  • Suspicious use of NtSetInformationThreadHideFromDebugger 14 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Program crash 1 IoCs
  • Delays execution with timeout.exe 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 29 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\c481259ad199b773339f168902cc7437.exe
    "C:\Users\Admin\AppData\Local\Temp\c481259ad199b773339f168902cc7437.exe"
    1⤵
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1616
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c timeout 1
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1368
      • C:\Windows\SysWOW64\timeout.exe
        timeout 1
        3⤵
        • Delays execution with timeout.exe
        PID:1600
    • C:\Users\Admin\AppData\Local\Temp\c481259ad199b773339f168902cc7437.exe
      "C:\Users\Admin\AppData\Local\Temp\c481259ad199b773339f168902cc7437.exe"
      2⤵
        PID:1636
      • C:\Users\Admin\AppData\Local\Temp\c481259ad199b773339f168902cc7437.exe
        "C:\Users\Admin\AppData\Local\Temp\c481259ad199b773339f168902cc7437.exe"
        2⤵
          PID:1660
        • C:\Users\Admin\AppData\Local\Temp\c481259ad199b773339f168902cc7437.exe
          "C:\Users\Admin\AppData\Local\Temp\c481259ad199b773339f168902cc7437.exe"
          2⤵
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:316
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1616 -s 1808
          2⤵
          • Program crash
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:1532

      Network

      MITRE ATT&CK Enterprise v6

      Replay Monitor

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      Downloads

      • memory/316-9-0x0000000000400000-0x000000000054C000-memory.dmp

        Filesize

        1.3MB

      • memory/316-18-0x00000000011E0000-0x00000000011E1000-memory.dmp

        Filesize

        4KB

      • memory/316-16-0x0000000005510000-0x0000000005581000-memory.dmp

        Filesize

        452KB

      • memory/316-13-0x0000000000400000-0x000000000054C000-memory.dmp

        Filesize

        1.3MB

      • memory/316-11-0x0000000074640000-0x0000000074D2E000-memory.dmp

        Filesize

        6.9MB

      • memory/316-10-0x000000000054706E-mapping.dmp

      • memory/1368-7-0x0000000000000000-mapping.dmp

      • memory/1532-12-0x0000000000000000-mapping.dmp

      • memory/1532-15-0x0000000001E90000-0x0000000001EA1000-memory.dmp

        Filesize

        68KB

      • memory/1532-17-0x00000000005D0000-0x00000000005D1000-memory.dmp

        Filesize

        4KB

      • memory/1600-8-0x0000000000000000-mapping.dmp

      • memory/1616-2-0x0000000074640000-0x0000000074D2E000-memory.dmp

        Filesize

        6.9MB

      • memory/1616-6-0x00000000058E0000-0x0000000005A36000-memory.dmp

        Filesize

        1.3MB

      • memory/1616-5-0x00000000011B0000-0x00000000011B1000-memory.dmp

        Filesize

        4KB

      • memory/1616-3-0x0000000001280000-0x0000000001281000-memory.dmp

        Filesize

        4KB