Analysis

  • max time kernel
    158s
  • max time network
    182s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    05-12-2022 21:03

General

  • Target

    802cb15ec17b1ecf122249d9c4e58f32d52cf1b77be6989e44513a995b6f8976.exe

  • Size

    16KB

  • MD5

    f4fe4258f4793ed9224f89186f8529ff

  • SHA1

    9f203a8ae8e7fa66a45e1af85a392483651df76d

  • SHA256

    802cb15ec17b1ecf122249d9c4e58f32d52cf1b77be6989e44513a995b6f8976

  • SHA512

    e121d8d41821671751f1602fc8d078a6e469a2e9742890ea302060b86795c4311fb9db77e367f79a5d53f3bbad3ab1abe00eb5fa9de1a93fc92c4714d0335631

  • SSDEEP

    384:AYmvmOC3X2dvNmQl9Zeb4VIhwVPSfZL433333333I:AYm3CH6skZek9SV433333333I

Score
10/10

Malware Config

Signatures

  • Modifies WinLogon for persistence 2 TTPs 1 IoCs
  • Modifies visibility of file extensions in Explorer 2 TTPs 1 IoCs
  • Process spawned unexpected child process 3 IoCs

    This typically indicates the parent process was compromised via an exploit or macro.

  • Sets file to hidden 1 TTPs 3 IoCs

    Modifies file attributes to stop it showing in Explorer etc.

  • Checks computer location settings 2 TTPs 2 IoCs

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

  • Drops desktop.ini file(s) 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies Internet Explorer settings 1 TTPs 2 IoCs
  • Modifies Internet Explorer start page 1 TTPs 1 IoCs
  • Modifies registry class 11 IoCs
  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs
  • Views/modifies file attributes 1 TTPs 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\802cb15ec17b1ecf122249d9c4e58f32d52cf1b77be6989e44513a995b6f8976.exe
    "C:\Users\Admin\AppData\Local\Temp\802cb15ec17b1ecf122249d9c4e58f32d52cf1b77be6989e44513a995b6f8976.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:4716
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\run_rlh_tmp.bat" "
      2⤵
      • Checks computer location settings
      • Modifies registry class
      • Suspicious use of WriteProcessMemory
      PID:1048
      • C:\Windows\SysWOW64\PING.EXE
        ping 88.99.00.00
        3⤵
        • Runs ping.exe
        PID:1924
      • C:\Windows\SysWOW64\mshta.exe
        "C:\Windows\SysWOW64\mshta.exe" "C:\Users\Admin\AppData\Roaming\MICROS~1\NTUSER_LOG.hta" {1E460BD7-F1C3-4B2E-88BF-4E770A288AF5}{1E460BD7-F1C3-4B2E-88BF-4E770A288AF5}
        3⤵
        • Modifies WinLogon for persistence
        • Modifies visibility of file extensions in Explorer
        • Drops desktop.ini file(s)
        • Modifies Internet Explorer settings
        • Modifies Internet Explorer start page
        • Modifies registry class
        PID:4212
  • C:\Windows\system32\attrib.exe
    attrib +s +h "D:\RECYCLERMD4"
    1⤵
    • Process spawned unexpected child process
    • Sets file to hidden
    • Views/modifies file attributes
    PID:3676
  • C:\Windows\system32\attrib.exe
    attrib +s +h "D:\VolumeXX\desktop.ini"
    1⤵
    • Process spawned unexpected child process
    • Sets file to hidden
    • Views/modifies file attributes
    PID:4296
  • C:\Windows\system32\attrib.exe
    attrib +s +h "D:\VolumeXX"
    1⤵
    • Process spawned unexpected child process
    • Sets file to hidden
    • Views/modifies file attributes
    PID:3640

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\run_rlh_tmp.bat

    Filesize

    70B

    MD5

    edea5cd5060d69b6c558fea75e330a67

    SHA1

    929e7c5ca8c300a98ac6833d0e8fa912ca9fa5dd

    SHA256

    1ed1bc8bfd84479497b2c1e3d0ca1df56eb2f3d82a68862e8b50eead06889b39

    SHA512

    adbe14c811b915972709530049bb6934eacead6c5d19243ecea07abdd6c93aeede3fcae99f6419fb7ca1b2394dcef19e642be36f22c572de01b069dac2b4aa61

  • C:\Users\Admin\AppData\Roaming\MICROS~1\NTUSER_LOG.hta

    Filesize

    7KB

    MD5

    b406ed0e1cf6eb046c6b4ecf2fa73694

    SHA1

    550eaf6e9854dc2d73a507ff2a57f1cbf8d1c662

    SHA256

    3186413894290ddb8a5f6e22c14d4e1b4fdfa6d12369c6f43ee43ab7e4e3bc7e

    SHA512

    1222fc8464e72f192881c9629648ad3ae95b81e3db085fc7977e776dc12f0b47a95bfb538b8d198e27ee4625b6985b8c0fbee1fa97a2ecac0009055f66962615

  • memory/1048-132-0x0000000000000000-mapping.dmp

  • memory/1924-134-0x0000000000000000-mapping.dmp

  • memory/4212-136-0x0000000000000000-mapping.dmp