Analysis

  • max time kernel
    70s
  • max time network
    147s
  • platform
    windows10_x64
  • resource
    win10v20201028
  • submitted
    18-11-2020 16:58

General

  • Target

    5da0116af495e6d8af7241da9b8281d918b9ff9a98a3deab4cca1aec1e456c18.exe

Malware Config

Signatures

  • UPX packed file 1 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Modifies file permissions 1 TTPs 1 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Looks up external IP address via web service 6 IoCs

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

  • Enumerates physical storage devices 1 TTPs

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

  • Modifies system certificate store 2 TTPs 10 IoCs
  • Suspicious behavior: EnumeratesProcesses 10 IoCs
  • Suspicious use of WriteProcessMemory 15 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\5da0116af495e6d8af7241da9b8281d918b9ff9a98a3deab4cca1aec1e456c18.exe
    "C:\Users\Admin\AppData\Local\Temp\5da0116af495e6d8af7241da9b8281d918b9ff9a98a3deab4cca1aec1e456c18.exe"
    1⤵
    • Adds Run key to start application
    • Modifies system certificate store
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:944
    • C:\Windows\SysWOW64\icacls.exe
      icacls "C:\Users\Admin\AppData\Local\88df8f9d-3bee-4591-84b5-741234993fcb" /deny *S-1-1-0:(OI)(CI)(DE,DC)
      2⤵
      • Modifies file permissions
      PID:64
    • C:\Users\Admin\AppData\Local\Temp\5da0116af495e6d8af7241da9b8281d918b9ff9a98a3deab4cca1aec1e456c18.exe
      "C:\Users\Admin\AppData\Local\Temp\5da0116af495e6d8af7241da9b8281d918b9ff9a98a3deab4cca1aec1e456c18.exe" --Admin IsNotAutoStart IsNotTask
      2⤵
      • Modifies system certificate store
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:196
      • C:\Users\Admin\AppData\Local\Temp\5da0116af495e6d8af7241da9b8281d918b9ff9a98a3deab4cca1aec1e456c18.exe
        "C:\Users\Admin\AppData\Local\Temp\5da0116af495e6d8af7241da9b8281d918b9ff9a98a3deab4cca1aec1e456c18.exe" --ForNetRes "FsnDCf1u1wJvLcqbFxxtOchBf2V2lgtk24oM5mt2" 0h7mFQcjRC3pDgsRcrWZ7K7bdAgvgDos224DmXt1 IsNotAutoStart IsNotTask
        3⤵
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of WriteProcessMemory
        PID:3676
        • C:\Users\Admin\AppData\Local\Temp\5da0116af495e6d8af7241da9b8281d918b9ff9a98a3deab4cca1aec1e456c18.exe
          "C:\Users\Admin\AppData\Local\Temp\5da0116af495e6d8af7241da9b8281d918b9ff9a98a3deab4cca1aec1e456c18.exe" --Service 3676 "FsnDCf1u1wJvLcqbFxxtOchBf2V2lgtk24oM5mt2" 0h7mFQcjRC3pDgsRcrWZ7K7bdAgvgDos224DmXt1
          4⤵
          • Suspicious behavior: EnumeratesProcesses
          PID:3588
      • C:\Users\Admin\AppData\Local\Temp\5da0116af495e6d8af7241da9b8281d918b9ff9a98a3deab4cca1aec1e456c18.exe
        "C:\Users\Admin\AppData\Local\Temp\5da0116af495e6d8af7241da9b8281d918b9ff9a98a3deab4cca1aec1e456c18.exe" --Service 196 "FsnDCf1u1wJvLcqbFxxtOchBf2V2lgtk24oM5mt2" 0h7mFQcjRC3pDgsRcrWZ7K7bdAgvgDos224DmXt1
        3⤵
        • Suspicious behavior: EnumeratesProcesses
        PID:904

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/196-7-0x0000000002240000-0x0000000002241000-memory.dmp

    Filesize

    4KB

  • memory/196-5-0x0000000002240000-0x0000000002241000-memory.dmp

    Filesize

    4KB

  • memory/904-15-0x0000000000700000-0x0000000000740000-memory.dmp

    Filesize

    256KB

  • memory/904-12-0x0000000002290000-0x0000000002291000-memory.dmp

    Filesize

    4KB

  • memory/944-1-0x000000000051A000-0x000000000055A000-memory.dmp

    Filesize

    256KB

  • memory/944-0-0x0000000002250000-0x0000000002251000-memory.dmp

    Filesize

    4KB

  • memory/3588-21-0x0000000002230000-0x0000000002231000-memory.dmp

    Filesize

    4KB

  • memory/3588-22-0x0000000000680000-0x00000000006C0000-memory.dmp

    Filesize

    256KB

  • memory/3676-13-0x0000000002380000-0x0000000002381000-memory.dmp

    Filesize

    4KB

  • memory/3676-14-0x00000000006C0000-0x0000000000700000-memory.dmp

    Filesize

    256KB