Analysis

  • max time kernel
    151s
  • max time network
    11s
  • platform
    windows7_x64
  • resource
    win7v20201028
  • submitted
    12/11/2020, 10:47

General

  • Target
    fac.exe
  • Size 588KB
  • Sample201112-kl82518lt6
  • SHA256 967f7f10626329bdb9c7f0ed10d64ffc0fd3fb01f3cd032ed50cab470a2840ce
  • MD5 SHA1 SHA512
Score
7/10

Malware Config

Signatures

  • 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.

  • Suspicious use of SetThreadContext 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 5047 IoCs
  • Suspicious behavior: MapViewOfSection 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of WriteProcessMemory 34 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\fac.exe
    "C:\Users\Admin\AppData\Local\Temp\fac.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:764
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
      2⤵
        PID:1360
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
        2⤵
          PID:1304
        • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
          "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
          2⤵
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:1484
        • C:\Users\Admin\AppData\Local\Temp\fac.exe
          "C:\Users\Admin\AppData\Local\Temp\fac.exe"
          2⤵
          • Suspicious use of SetThreadContext
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious behavior: MapViewOfSection
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          PID:800
          • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
            "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
            3⤵
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:592

      Network

            MITRE ATT&CK Enterprise v6

            Replay Monitor

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            Downloads

            memory/592-26-0x00000000749D0000-0x00000000750BE000-memory.dmp

            memory/764-0-0x00000000749D0000-0x00000000750BE000-memory.dmp

            memory/764-1-0x0000000000330000-0x0000000000331000-memory.dmp

            memory/764-3-0x0000000004260000-0x000000000429D000-memory.dmp

            memory/764-5-0x00000000007F0000-0x000000000082C000-memory.dmp

            memory/800-17-0x00000000749D0000-0x00000000750BE000-memory.dmp

            memory/1484-12-0x0000000000400000-0x000000000043C000-memory.dmp

            memory/1484-13-0x00000000749D0000-0x00000000750BE000-memory.dmp

            memory/1484-11-0x0000000000400000-0x000000000043C000-memory.dmp

            memory/1484-9-0x0000000000400000-0x000000000043C000-memory.dmp