Analysis

  • max time kernel
    300s
  • max time network
    282s
  • platform
    windows10-1703_x64
  • resource
    win10-20230915-en
  • resource tags

    arch:x64arch:x86image:win10-20230915-enlocale:en-usos:windows10-1703-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 2 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:1512
  • C:\Users\Admin\AppData\Roaming\rurbccw
    C:\Users\Admin\AppData\Roaming\rurbccw
    1⤵
    • Executes dropped EXE
    • Checks SCSI registry key(s)
    • Suspicious behavior: MapViewOfSection
    PID:2824

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

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

          Filesize

          186KB

          MD5

          5e24e3e53137efe701b18e01b83cde73

          SHA1

          c2561797a85b99d192a09c479f6dabd88baaaae4

          SHA256

          a5a107e890080f3642ebe97a41abdecab2113fe981569361e9ebb4f96ab5d078

          SHA512

          e96e8d998b97e6520041f0502da2d2e14e398a0e7dfa41515d30f3d5f12a92c84e7d5f608d9d82f830cf7347cb9e44244ead88fb0338428e60e24f8199b9f701

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

          Filesize

          186KB

          MD5

          5e24e3e53137efe701b18e01b83cde73

          SHA1

          c2561797a85b99d192a09c479f6dabd88baaaae4

          SHA256

          a5a107e890080f3642ebe97a41abdecab2113fe981569361e9ebb4f96ab5d078

          SHA512

          e96e8d998b97e6520041f0502da2d2e14e398a0e7dfa41515d30f3d5f12a92c84e7d5f608d9d82f830cf7347cb9e44244ead88fb0338428e60e24f8199b9f701

        • memory/1512-0-0x0000000001F00000-0x0000000001F15000-memory.dmp

          Filesize

          84KB

        • memory/1512-1-0x00000000001F0000-0x00000000001F9000-memory.dmp

          Filesize

          36KB

        • memory/1512-2-0x0000000000400000-0x000000000043C000-memory.dmp

          Filesize

          240KB

        • memory/1512-4-0x0000000000400000-0x000000000043C000-memory.dmp

          Filesize

          240KB

        • memory/1512-7-0x00000000001F0000-0x00000000001F9000-memory.dmp

          Filesize

          36KB

        • memory/1512-8-0x0000000001F00000-0x0000000001F15000-memory.dmp

          Filesize

          84KB

        • memory/2824-14-0x0000000000400000-0x000000000043C000-memory.dmp

          Filesize

          240KB

        • memory/2824-18-0x0000000000400000-0x000000000043C000-memory.dmp

          Filesize

          240KB

        • memory/3300-3-0x0000000000E70000-0x0000000000E86000-memory.dmp

          Filesize

          88KB

        • memory/3300-15-0x0000000002CA0000-0x0000000002CB6000-memory.dmp

          Filesize

          88KB