Analysis

  • max time kernel
    300s
  • max time network
    299s
  • 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, 00:36

General

  • Target

    79a62aa738291f15636bfdd41733c557467f5cc848ab47e0265dc30c34ff73de.exe

  • Size

    191KB

  • MD5

    05a6b123f8ab7eaaeb40621f079bae87

  • SHA1

    2bebec5327c4411bb975b69cd92457f55111cfd1

  • SHA256

    79a62aa738291f15636bfdd41733c557467f5cc848ab47e0265dc30c34ff73de

  • SHA512

    5be23582b62c25614b6007941520bc751801594ba29617875159a7d588eb1e34e747ef4a5236edf9d5f8c5caa2e20d50a99bc0d50b6356a1673dff5ef0785fa5

  • SSDEEP

    3072:8+4M3I7trc0W0s/gUb0Jj+S5OdV4SxkxaUDIZwG5Vsy:R4M3I7h1W9AJj+SEkxcZ7sy

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\79a62aa738291f15636bfdd41733c557467f5cc848ab47e0265dc30c34ff73de.exe
    "C:\Users\Admin\AppData\Local\Temp\79a62aa738291f15636bfdd41733c557467f5cc848ab47e0265dc30c34ff73de.exe"
    1⤵
    • Checks SCSI registry key(s)
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: MapViewOfSection
    PID:3464
  • C:\Users\Admin\AppData\Roaming\rucujcv
    C:\Users\Admin\AppData\Roaming\rucujcv
    1⤵
    • Executes dropped EXE
    • Checks SCSI registry key(s)
    • Suspicious behavior: MapViewOfSection
    PID:4476

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

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

          Filesize

          191KB

          MD5

          05a6b123f8ab7eaaeb40621f079bae87

          SHA1

          2bebec5327c4411bb975b69cd92457f55111cfd1

          SHA256

          79a62aa738291f15636bfdd41733c557467f5cc848ab47e0265dc30c34ff73de

          SHA512

          5be23582b62c25614b6007941520bc751801594ba29617875159a7d588eb1e34e747ef4a5236edf9d5f8c5caa2e20d50a99bc0d50b6356a1673dff5ef0785fa5

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

          Filesize

          191KB

          MD5

          05a6b123f8ab7eaaeb40621f079bae87

          SHA1

          2bebec5327c4411bb975b69cd92457f55111cfd1

          SHA256

          79a62aa738291f15636bfdd41733c557467f5cc848ab47e0265dc30c34ff73de

          SHA512

          5be23582b62c25614b6007941520bc751801594ba29617875159a7d588eb1e34e747ef4a5236edf9d5f8c5caa2e20d50a99bc0d50b6356a1673dff5ef0785fa5

        • memory/3232-3-0x00000000010C0000-0x00000000010D6000-memory.dmp

          Filesize

          88KB

        • memory/3232-15-0x0000000002FB0000-0x0000000002FC6000-memory.dmp

          Filesize

          88KB

        • memory/3464-0-0x00000000004A0000-0x00000000004B5000-memory.dmp

          Filesize

          84KB

        • memory/3464-1-0x00000000004C0000-0x00000000004C9000-memory.dmp

          Filesize

          36KB

        • memory/3464-2-0x0000000000400000-0x000000000043E000-memory.dmp

          Filesize

          248KB

        • memory/3464-4-0x0000000000400000-0x000000000043E000-memory.dmp

          Filesize

          248KB

        • memory/3464-7-0x00000000004C0000-0x00000000004C9000-memory.dmp

          Filesize

          36KB

        • memory/3464-8-0x00000000004A0000-0x00000000004B5000-memory.dmp

          Filesize

          84KB

        • memory/4476-14-0x0000000000400000-0x000000000043E000-memory.dmp

          Filesize

          248KB

        • memory/4476-16-0x0000000000400000-0x000000000043E000-memory.dmp

          Filesize

          248KB