Analysis

  • max time kernel
    149s
  • max time network
    151s
  • platform
    windows7_x64
  • resource
    win7v20201028
  • submitted
    05-01-2021 22:41

General

  • Target

    User Help Services.exe

  • Size

    3.6MB

  • MD5

    8333ca39ae364a0c977dc6d304495a05

  • SHA1

    fb0fb6f73019f645aaaa6b7ffd40c2d9df39e5de

  • SHA256

    d0fbaa4e5d7b512cdc4b3b63ddbed59d1cb741f3925381124ee91942ecfdf3a6

  • SHA512

    e010f5130262a96bcf1f779ca3a708070adc99802eb9d278e6300eaa7b950019595019e1bd974401de4e75d130a990501be06f31066471e7e2e0af2f4f63cc2e

Score
10/10

Malware Config

Extracted

Family

remcos

C2

95.154.196.12:5851

Signatures

  • Remcos

    Remcos is a closed-source remote control and surveillance software.

  • Drops file in Windows directory 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 7 IoCs
  • Suspicious behavior: MapViewOfSection 6 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 149 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\User Help Services.exe
    "C:\Users\Admin\AppData\Local\Temp\User Help Services.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1640
    • C:\Windows\SysWOW64\nslookup.exe
      "C:\Windows\system32\nslookup.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of WriteProcessMemory
      PID:1816
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\system32\cmd.exe"
        3⤵
          PID:820
        • C:\Windows\SysWOW64\cmd.exe
          "C:\Windows\system32\cmd.exe"
          3⤵
            PID:692
          • C:\Windows\SysWOW64\cmd.exe
            "C:\Windows\system32\cmd.exe"
            3⤵
              PID:304
            • C:\Windows\SysWOW64\cmd.exe
              "C:\Windows\system32\cmd.exe"
              3⤵
                PID:1348
              • C:\Windows\SysWOW64\cmd.exe
                "C:\Windows\system32\cmd.exe"
                3⤵
                  PID:388
                • C:\Windows\SysWOW64\notepad.exe
                  "C:\Windows\system32\notepad.exe"
                  3⤵
                  • Drops file in Windows directory
                  • Suspicious use of SetWindowsHookEx
                  PID:1104

            Network

            MITRE ATT&CK Matrix

            Replay Monitor

            Loading Replay Monitor...

            Downloads

            • memory/1104-3-0x0000000000000000-mapping.dmp

            • memory/1104-4-0x0000000000400000-0x0000000000421000-memory.dmp

              Filesize

              132KB

            • memory/1816-2-0x0000000000000000-mapping.dmp