Analysis

  • max time kernel
    148s
  • max time network
    161s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    22-11-2022 09:46

General

  • Target

    201eda697f3c0a2bc732ee572240db5ee00e659f32ceab34d70f5adb56c37be6.exe

  • Size

    206KB

  • MD5

    397274aa8167c58ef72f28bc03351a43

  • SHA1

    bea78819e92c222e5a7e92d36d40176714d46d06

  • SHA256

    201eda697f3c0a2bc732ee572240db5ee00e659f32ceab34d70f5adb56c37be6

  • SHA512

    203f549f1f617be8261ae8d4189bba3fef359b3e2e1f00a28bf61b33a1d2ccd6c5931e58167956212d6169b4156b2a9f6493cbfa653f7170fff86316d2e60221

  • SSDEEP

    3072:5wxVMhOC/dTDbq91+mno3t4QZQ3raVsNT+s+YNRXA5ZqpyTfbP:5TfFDbRnOTraya5YNRwCyLbP

Score
8/10

Malware Config

Signatures

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

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

  • Adds Run key to start application 2 TTPs 2 IoCs
  • Drops file in Program Files directory 8 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Enumerates processes with tasklist 1 TTPs 1 IoCs
  • Modifies registry key 1 TTPs 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 18 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\201eda697f3c0a2bc732ee572240db5ee00e659f32ceab34d70f5adb56c37be6.exe
    "C:\Users\Admin\AppData\Local\Temp\201eda697f3c0a2bc732ee572240db5ee00e659f32ceab34d70f5adb56c37be6.exe"
    1⤵
    • Checks computer location settings
    • Drops file in Program Files directory
    • Suspicious use of WriteProcessMemory
    PID:380
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Program Files (x86)\TimeServer\start.bat" "
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3044
      • C:\Windows\SysWOW64\reg.exe
        REG ADD HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer /v TimeServer /t REG_DWORD /d 0x313B7CC1 /f
        3⤵
        • Modifies registry key
        PID:1700
      • C:\Windows\SysWOW64\reg.exe
        REG ADD HKCU\Software\Microsoft\Windows\CurrentVersion\Run /v TimeServer /t REG_SZ /d "C:\Program Files (x86)\TimeServer\jpeg.exe" /f
        3⤵
        • Adds Run key to start application
        • Modifies registry key
        PID:1668
      • C:\Windows\SysWOW64\tasklist.exe
        TaskList /FI "ImageName EQ jpeg.exe"
        3⤵
        • Enumerates processes with tasklist
        • Suspicious use of AdjustPrivilegeToken
        PID:4124
      • C:\Windows\SysWOW64\find.exe
        Find /I "jpeg.exe"
        3⤵
          PID:4848
        • C:\Program Files (x86)\TimeServer\jpeg.exe
          jpeg.exe
          3⤵
          • Executes dropped EXE
          PID:2944

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Program Files (x86)\TimeServer\jpeg.exe

      Filesize

      97KB

      MD5

      5501dd2471a3a7e37dd8d8eb5fdaea9f

      SHA1

      26a4029b5b0b476f8b4f9067aadbc4b129025046

      SHA256

      61acbfb8f49261df48726799a989b71a15674cca69e8c05c04112811d4da3ad7

      SHA512

      33ae6764c906935c29f7b25431d3dc58b191b7f33bee8aaf127be1f28159dc89148c3ff2ca7ba712ccfe80aca0cb498035ddc66981cf5fd894e87e6717dcc33c

    • C:\Program Files (x86)\TimeServer\jpeg.exe

      Filesize

      97KB

      MD5

      5501dd2471a3a7e37dd8d8eb5fdaea9f

      SHA1

      26a4029b5b0b476f8b4f9067aadbc4b129025046

      SHA256

      61acbfb8f49261df48726799a989b71a15674cca69e8c05c04112811d4da3ad7

      SHA512

      33ae6764c906935c29f7b25431d3dc58b191b7f33bee8aaf127be1f28159dc89148c3ff2ca7ba712ccfe80aca0cb498035ddc66981cf5fd894e87e6717dcc33c

    • C:\Program Files (x86)\TimeServer\start.bat

      Filesize

      650B

      MD5

      6271e788faeabe8a54abc798b4d4c19c

      SHA1

      4950fc7d5baac79ddebb1bbaf41225cd292f6fe9

      SHA256

      cf59a44c219a1c167ab50295d557fcef65e797686b7538e110b4e919e13487c3

      SHA512

      dec3b6270e5e2a8b640ef24aa2d503e30ce7db656f0b860f901d92450b200f51166081644fc509fe4fd839d416398b3e4abb75706bc9d7fa0a42a1656e59322b