Analysis

  • max time kernel
    150s
  • resource
    win10v191014
  • submitted
    09-01-2020 13:19

General

  • Target

    2020-01-09-12-13_4sZAhGZh.exe

  • Sample

    200109-ym7kmkrsda

  • SHA256

    8e87d800919cab678d916a2242bb400f53fc9397f6fcc6de053afdc798042f14

Malware Config

Signatures

  • Suspicious use of WriteProcessMemory 4 IoCs
  • Executes dropped EXE 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Modifies Windows Firewall 1 TTPs 3 IoCs
  • Drops autorun.inf file 1 TTPs 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2020-01-09-12-13_4sZAhGZh.exe
    "C:\Users\Admin\AppData\Local\Temp\2020-01-09-12-13_4sZAhGZh.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4988
    • C:\Users\Admin\AppData\Roaming\server.exe
      "C:\Users\Admin\AppData\Roaming\server.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: GetForegroundWindowSpam
      • Drops autorun.inf file
      PID:5104
      • C:\Windows\SysWOW64\netsh.exe
        netsh firewall add allowedprogram "C:\Users\Admin\AppData\Roaming\server.exe" "server.exe" ENABLE
        3⤵
        • Modifies Windows Firewall
        PID:1696
      • C:\Windows\SysWOW64\netsh.exe
        netsh firewall delete allowedprogram "C:\Users\Admin\AppData\Roaming\server.exe"
        3⤵
        • Modifies Windows Firewall
        PID:3748
      • C:\Windows\SysWOW64\netsh.exe
        netsh firewall add allowedprogram "C:\Users\Admin\AppData\Roaming\server.exe" "server.exe" ENABLE
        3⤵
        • Modifies Windows Firewall
        PID:4516

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Replication Through Removable Media

1
T1091

Persistence

Modify Existing Service

1
T1031

Lateral Movement

Replication Through Removable Media

1
T1091

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Downloads