Analysis

  • max time kernel
    151s
  • max time network
    156s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230915-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230915-enlocale:en-usos:windows10-2004-x64system
  • submitted
    14-10-2023 11:58

General

  • Target

    NEAS.dcddde73fd2dd110a358ae0668ee96c7_JC.exe

  • Size

    42KB

  • MD5

    dcddde73fd2dd110a358ae0668ee96c7

  • SHA1

    62a416189a11c8dcc53867bfdbee5a0cea1a80fb

  • SHA256

    d627409719fdd17899fafe08797bea10fb5ff77275f2901a2984dcd545395b95

  • SHA512

    da7ad8bf701664bf8291a2a7f6d52b88b728e53b5230f624583f85aa110843283bf924a09f22ab2b32f7fabf3a2e1654378783b5eac4f68d399b459de241de80

  • SSDEEP

    768:fvQB/z0pqrLoyT8I+E1j+KPPIYu8T0aTsJK56VO8XM0Wns+b2znpNqP8:fODhc+yBJW0WTU5XM1nJqjp0E

Malware Config

Extracted

Family

sakula

C2

www.polarroute.com

Signatures

  • Sakula

    Sakula is a remote access trojan with various capabilities.

  • Sakula payload 5 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 1 IoCs
  • UPX packed file 9 IoCs

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

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies system certificate store 2 TTPs 5 IoCs
  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\NEAS.dcddde73fd2dd110a358ae0668ee96c7_JC.exe
    "C:\Users\Admin\AppData\Local\Temp\NEAS.dcddde73fd2dd110a358ae0668ee96c7_JC.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3708
    • C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      2⤵
      • Executes dropped EXE
      • Modifies system certificate store
      PID:4496
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\NEAS.dcddde73fd2dd110a358ae0668ee96c7_JC.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2988
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1
        3⤵
        • Runs ping.exe
        PID:1452

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe

    Filesize

    42KB

    MD5

    b9157c85680f345f7d5f8d1593b63a6b

    SHA1

    8e6b1363d78641e098b3e5bd089c851c3ece35cb

    SHA256

    2c2685681a40feab46595d02b6406de487c6e1a03eff00d17dff7f8d74bea1e6

    SHA512

    93acf59c10eb6288247475c128c51041b6200fe75f1fe60bbbdf087a9770c87fa03c014059a7bad57cf016b6d837b726f05a7208bbaa3e2680b59b73c20c4117

  • C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe

    Filesize

    42KB

    MD5

    b9157c85680f345f7d5f8d1593b63a6b

    SHA1

    8e6b1363d78641e098b3e5bd089c851c3ece35cb

    SHA256

    2c2685681a40feab46595d02b6406de487c6e1a03eff00d17dff7f8d74bea1e6

    SHA512

    93acf59c10eb6288247475c128c51041b6200fe75f1fe60bbbdf087a9770c87fa03c014059a7bad57cf016b6d837b726f05a7208bbaa3e2680b59b73c20c4117

  • memory/3708-0-0x0000000000400000-0x0000000000424000-memory.dmp

    Filesize

    144KB

  • memory/3708-6-0x0000000000400000-0x0000000000424000-memory.dmp

    Filesize

    144KB

  • memory/3708-15-0x0000000000400000-0x0000000000424000-memory.dmp

    Filesize

    144KB

  • memory/4496-4-0x0000000000400000-0x0000000000424000-memory.dmp

    Filesize

    144KB

  • memory/4496-8-0x0000000000400000-0x0000000000424000-memory.dmp

    Filesize

    144KB

  • memory/4496-24-0x0000000000400000-0x0000000000424000-memory.dmp

    Filesize

    144KB

  • memory/4496-31-0x0000000000400000-0x0000000000424000-memory.dmp

    Filesize

    144KB