Analysis

  • max time kernel
    318s
  • max time network
    321s
  • platform
    windows7_x64
  • resource
    win7-20230831-en
  • resource tags

    arch:x64arch:x86image:win7-20230831-enlocale:en-usos:windows7-x64system
  • submitted
    23/09/2023, 00:37

General

  • Target

    a5a107e890080f3642ebe97a41abdecab2113fe981569361e9ebb4f96ab5d078.exe

  • Size

    186KB

  • MD5

    5e24e3e53137efe701b18e01b83cde73

  • SHA1

    c2561797a85b99d192a09c479f6dabd88baaaae4

  • SHA256

    a5a107e890080f3642ebe97a41abdecab2113fe981569361e9ebb4f96ab5d078

  • SHA512

    e96e8d998b97e6520041f0502da2d2e14e398a0e7dfa41515d30f3d5f12a92c84e7d5f608d9d82f830cf7347cb9e44244ead88fb0338428e60e24f8199b9f701

  • SSDEEP

    3072:QrH1yFMngccXYGhFMUgBLxWlJa+wedYuc/vR6j2xxiLYD51Qez:QZyFMng/70UwKa+wkYuc/5E2qEzQ

Malware Config

Extracted

Family

smokeloader

Botnet

pub1

Extracted

Family

smokeloader

Version

2022

C2

http://gudintas.at/tmp/

http://pik96.ru/tmp/

http://rosatiauto.com/tmp/

http://kingpirate.ru/tmp/

rc4.i32
rc4.i32

Signatures

  • SmokeLoader

    Modular backdoor trojan in use since 2014.

  • Deletes itself 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Checks SCSI registry key(s) 3 TTPs 6 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: MapViewOfSection 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

Processes

  • C:\Users\Admin\AppData\Local\Temp\a5a107e890080f3642ebe97a41abdecab2113fe981569361e9ebb4f96ab5d078.exe
    "C:\Users\Admin\AppData\Local\Temp\a5a107e890080f3642ebe97a41abdecab2113fe981569361e9ebb4f96ab5d078.exe"
    1⤵
    • Checks SCSI registry key(s)
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: MapViewOfSection
    PID:2248
  • C:\Windows\system32\taskeng.exe
    taskeng.exe {0BCF8B0D-90A8-4F13-943D-19D31C8F9F15} S-1-5-21-3750544865-3773649541-1858556521-1000:XOCYHKRS\Admin:Interactive:[1]
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2280
    • C:\Users\Admin\AppData\Roaming\wcahhgd
      C:\Users\Admin\AppData\Roaming\wcahhgd
      2⤵
      • Executes dropped EXE
      • Checks SCSI registry key(s)
      • Suspicious behavior: MapViewOfSection
      PID:2712

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\Users\Admin\AppData\Roaming\wcahhgd

          Filesize

          186KB

          MD5

          5e24e3e53137efe701b18e01b83cde73

          SHA1

          c2561797a85b99d192a09c479f6dabd88baaaae4

          SHA256

          a5a107e890080f3642ebe97a41abdecab2113fe981569361e9ebb4f96ab5d078

          SHA512

          e96e8d998b97e6520041f0502da2d2e14e398a0e7dfa41515d30f3d5f12a92c84e7d5f608d9d82f830cf7347cb9e44244ead88fb0338428e60e24f8199b9f701

        • C:\Users\Admin\AppData\Roaming\wcahhgd

          Filesize

          186KB

          MD5

          5e24e3e53137efe701b18e01b83cde73

          SHA1

          c2561797a85b99d192a09c479f6dabd88baaaae4

          SHA256

          a5a107e890080f3642ebe97a41abdecab2113fe981569361e9ebb4f96ab5d078

          SHA512

          e96e8d998b97e6520041f0502da2d2e14e398a0e7dfa41515d30f3d5f12a92c84e7d5f608d9d82f830cf7347cb9e44244ead88fb0338428e60e24f8199b9f701

        • memory/1264-3-0x0000000002A40000-0x0000000002A56000-memory.dmp

          Filesize

          88KB

        • memory/1264-15-0x0000000002C40000-0x0000000002C56000-memory.dmp

          Filesize

          88KB

        • memory/2248-0-0x0000000000230000-0x0000000000245000-memory.dmp

          Filesize

          84KB

        • memory/2248-1-0x0000000000250000-0x0000000000259000-memory.dmp

          Filesize

          36KB

        • memory/2248-2-0x0000000000400000-0x000000000043C000-memory.dmp

          Filesize

          240KB

        • memory/2248-5-0x0000000000250000-0x0000000000259000-memory.dmp

          Filesize

          36KB

        • memory/2248-4-0x0000000000400000-0x000000000043C000-memory.dmp

          Filesize

          240KB

        • memory/2248-8-0x0000000000230000-0x0000000000245000-memory.dmp

          Filesize

          84KB

        • memory/2712-14-0x0000000000400000-0x000000000043C000-memory.dmp

          Filesize

          240KB

        • memory/2712-18-0x0000000000400000-0x000000000043C000-memory.dmp

          Filesize

          240KB