Analysis

  • max time kernel
    315s
  • max time network
    342s
  • platform
    windows10_x64
  • resource
    win10v20201028
  • submitted
    18-11-2020 15:58

General

  • Target

    infected dot net installer.exe

Score
8/10

Malware Config

Signatures

  • Executes dropped EXE 3 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Loads dropped DLL 5 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Drops file in Windows directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Checks processor information in registry 2 TTPs 2 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Modifies data under HKEY_USERS 4 IoCs
  • Modifies registry class 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 8 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\infected dot net installer.exe
    "C:\Users\Admin\AppData\Local\Temp\infected dot net installer.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:932
    • C:\Users\Admin\AppData\Local\Temp\._cache_infected dot net installer.exe
      "C:\Users\Admin\AppData\Local\Temp\._cache_infected dot net installer.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of WriteProcessMemory
      PID:228
      • C:\8d33db8c509f4aef3f5b14b58758\Setup.exe
        C:\8d33db8c509f4aef3f5b14b58758\\Setup.exe /x86 /x64 /web
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Checks processor information in registry
        • Suspicious behavior: EnumeratesProcesses
        PID:396
    • C:\ProgramData\Synaptics\Synaptics.exe
      "C:\ProgramData\Synaptics\Synaptics.exe" InjUpdate
      2⤵
      • Executes dropped EXE
      PID:2352
  • C:\Windows\System32\svchost.exe
    C:\Windows\System32\svchost.exe -k netsvcs -s BITS
    1⤵
    • Drops file in Windows directory
    • Modifies data under HKEY_USERS
    PID:1512

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/396-57-0x0000000002A70000-0x0000000002A72000-memory.dmp

    Filesize

    8KB