Analysis

  • max time kernel
    150s
  • max time network
    111s
  • platform
    windows10_x64
  • resource
    win10v20201028
  • 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 18616 IoCs
  • Suspicious behavior: MapViewOfSection 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of WriteProcessMemory 14 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:3284
    • 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:2472
    • C:\Users\Admin\AppData\Local\Temp\fac.exe
      "C:\Users\Admin\AppData\Local\Temp\fac.exe"
      2⤵
      • Suspicious use of SetThreadContext
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2584
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
        3⤵
          PID:3532
        • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
          "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
          3⤵
          • Suspicious use of AdjustPrivilegeToken
          PID:3216

    Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

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          Downloads

          memory/2472-13-0x0000000004E50000-0x0000000004E51000-memory.dmp

          memory/2472-6-0x0000000000400000-0x000000000043C000-memory.dmp

          memory/2472-11-0x0000000005290000-0x0000000005291000-memory.dmp

          memory/2472-8-0x00000000733A0000-0x0000000073A8E000-memory.dmp

          memory/2584-14-0x00000000733A0000-0x0000000073A8E000-memory.dmp

          memory/2584-20-0x0000000005220000-0x000000000525C000-memory.dmp

          memory/3216-23-0x00000000733A0000-0x0000000073A8E000-memory.dmp

          memory/3216-28-0x0000000005D90000-0x0000000005D91000-memory.dmp

          memory/3216-29-0x0000000005E20000-0x0000000005E21000-memory.dmp

          memory/3216-31-0x0000000002A20000-0x0000000002A21000-memory.dmp

          memory/3284-4-0x0000000005BC0000-0x0000000005BFD000-memory.dmp

          memory/3284-3-0x0000000005650000-0x0000000005651000-memory.dmp

          memory/3284-1-0x0000000000DA0000-0x0000000000DA1000-memory.dmp

          memory/3284-0-0x00000000733A0000-0x0000000073A8E000-memory.dmp