Resubmissions

09-04-2024 12:36

240409-psyg6afa72 10

09-04-2024 12:36

240409-psxwmaad2s 10

09-04-2024 12:36

240409-psw94afa69 10

09-04-2024 12:36

240409-pswnkaac9z 10

29-02-2024 04:55

240229-fkfspsdh3x 10

Analysis

  • max time kernel
    300s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-20240215-en
  • resource tags

    arch:x64arch:x86image:win7-20240215-enlocale:en-usos:windows7-x64system
  • submitted
    09-04-2024 12:36

General

  • Target

    6d533c8a98cee42c8f797a0b982a0be0da8d7503da8c42e8da10a88bfee9bf23.exe

  • Size

    162KB

  • MD5

    5cddaacf9782c030db128e3ebfd8f301

  • SHA1

    71bae291b66ecfad6ee79ab150c9b4bdc676f06c

  • SHA256

    6d533c8a98cee42c8f797a0b982a0be0da8d7503da8c42e8da10a88bfee9bf23

  • SHA512

    bee3cbdeac5a317f58ebb2d621740f8b7e81e47db236327cb0e908bc49886e320e30a95191470953177740f702adfe704a626325ddd2a33f10c8ec3060059797

  • SSDEEP

    3072:pR3aImWaDnBilDV8X+Ld1VVuLtKsQfk1RoGJS4dNVEv:pIbWaDBilDVNLdJBsQfk77X

Malware Config

Extracted

Family

smokeloader

Version

2022

C2

http://selebration17io.io/index.php

http://vacantion18ffeu.cc/index.php

http://valarioulinity1.net/index.php

http://buriatiarutuhuob.net/index.php

http://cassiosssionunu.me/index.php

http://sulugilioiu19.net/index.php

http://goodfooggooftool.net/index.php

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: 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\6d533c8a98cee42c8f797a0b982a0be0da8d7503da8c42e8da10a88bfee9bf23.exe
    "C:\Users\Admin\AppData\Local\Temp\6d533c8a98cee42c8f797a0b982a0be0da8d7503da8c42e8da10a88bfee9bf23.exe"
    1⤵
    • Checks SCSI registry key(s)
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: MapViewOfSection
    PID:1600
  • C:\Windows\system32\taskeng.exe
    taskeng.exe {C1AF57A3-BA4E-48E1-A9CC-E5A06390E6DA} S-1-5-21-2248906074-2862704502-246302768-1000:GHPZRGFC\Admin:Interactive:[1]
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2052
    • C:\Users\Admin\AppData\Roaming\ubchbts
      C:\Users\Admin\AppData\Roaming\ubchbts
      2⤵
      • Executes dropped EXE
      • Checks SCSI registry key(s)
      • Suspicious behavior: MapViewOfSection
      PID:2396

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

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

    Filesize

    162KB

    MD5

    5cddaacf9782c030db128e3ebfd8f301

    SHA1

    71bae291b66ecfad6ee79ab150c9b4bdc676f06c

    SHA256

    6d533c8a98cee42c8f797a0b982a0be0da8d7503da8c42e8da10a88bfee9bf23

    SHA512

    bee3cbdeac5a317f58ebb2d621740f8b7e81e47db236327cb0e908bc49886e320e30a95191470953177740f702adfe704a626325ddd2a33f10c8ec3060059797

  • memory/1088-4-0x0000000002560000-0x0000000002576000-memory.dmp

    Filesize

    88KB

  • memory/1088-16-0x0000000002FB0000-0x0000000002FC6000-memory.dmp

    Filesize

    88KB

  • memory/1600-2-0x00000000003A0000-0x00000000003AB000-memory.dmp

    Filesize

    44KB

  • memory/1600-1-0x0000000000230000-0x0000000000330000-memory.dmp

    Filesize

    1024KB

  • memory/1600-3-0x0000000000400000-0x00000000022D1000-memory.dmp

    Filesize

    30.8MB

  • memory/1600-5-0x0000000000400000-0x00000000022D1000-memory.dmp

    Filesize

    30.8MB

  • memory/2396-14-0x00000000002B0000-0x00000000003B0000-memory.dmp

    Filesize

    1024KB

  • memory/2396-15-0x0000000000400000-0x00000000022D1000-memory.dmp

    Filesize

    30.8MB

  • memory/2396-19-0x0000000000400000-0x00000000022D1000-memory.dmp

    Filesize

    30.8MB