Resubmissions

14/03/2024, 11:45

240314-nw4b5sbb5v10

13/03/2024, 15:01

240313-sdxtvsfh9x10

13/03/2024, 14:22

240313-rpjkyagg5610

Analysis

  • max time kernel
    1800s
  • max time network
    1572s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    13/03/2024, 15:01

General

  • Target
    c88933a3bcc4494def9d0feb4568c4e865d6b333ace006256816166d34104ea0.exe
  • Size 242KB
  • Sample240313-sdxtvsfh9x
  • SHA256 c88933a3bcc4494def9d0feb4568c4e865d6b333ace006256816166d34104ea0
  • MD5 SHA1 SHA512 SSDEEP

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 3 IoCs
  • Checks SCSI registry key(s) 3 TTPs 12 IoCs

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

  • Modifies registry class 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: MapViewOfSection 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 16 IoCs
  • Suspicious use of UnmapMainImage 1 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\c88933a3bcc4494def9d0feb4568c4e865d6b333ace006256816166d34104ea0.exe
    "C:\Users\Admin\AppData\Local\Temp\c88933a3bcc4494def9d0feb4568c4e865d6b333ace006256816166d34104ea0.exe"
    1⤵
    • Checks SCSI registry key(s)
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: MapViewOfSection
    PID:2404
  • C:\Users\Admin\AppData\Roaming\arwdhsh
    C:\Users\Admin\AppData\Roaming\arwdhsh
    1⤵
    • Executes dropped EXE
    • Checks SCSI registry key(s)
    • Suspicious behavior: MapViewOfSection
    PID:3720
  • C:\Users\Admin\AppData\Roaming\arwdhsh
    C:\Users\Admin\AppData\Roaming\arwdhsh
    1⤵
    • Executes dropped EXE
    • Checks SCSI registry key(s)
    • Suspicious behavior: MapViewOfSection
    PID:2164
  • C:\Users\Admin\AppData\Roaming\arwdhsh
    C:\Users\Admin\AppData\Roaming\arwdhsh
    1⤵
    • Executes dropped EXE
    • Checks SCSI registry key(s)
    • Suspicious behavior: MapViewOfSection
    PID:876

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        arwdhsh

        • Path C:\Users\Admin\AppData\Roaming\arwdhsh
        • Size 242KB
        • SHA256 c88933a3bcc4494def9d0feb4568c4e865d6b333ace006256816166d34104ea0
        • MD5 SHA1 SHA512 SSDEEP

        memory/876-37-0x0000000000400000-0x0000000001A29000-memory.dmp

        memory/876-33-0x0000000000400000-0x0000000001A29000-memory.dmp

        memory/876-32-0x0000000001A40000-0x0000000001B40000-memory.dmp

        memory/2164-24-0x0000000000400000-0x0000000001A29000-memory.dmp

        memory/2164-28-0x0000000000400000-0x0000000001A29000-memory.dmp

        memory/2164-23-0x0000000001D40000-0x0000000001E40000-memory.dmp

        memory/2404-2-0x0000000003630000-0x000000000363B000-memory.dmp

        memory/2404-3-0x0000000000400000-0x0000000001A29000-memory.dmp

        memory/2404-5-0x0000000000400000-0x0000000001A29000-memory.dmp

        memory/2404-1-0x0000000001A30000-0x0000000001B30000-memory.dmp

        memory/3424-16-0x0000000002F70000-0x0000000002F86000-memory.dmp

        memory/3424-25-0x0000000002FA0000-0x0000000002FB6000-memory.dmp

        memory/3424-34-0x0000000002FD0000-0x0000000002FE6000-memory.dmp

        memory/3424-4-0x00000000030B0000-0x00000000030C6000-memory.dmp

        memory/3720-17-0x0000000000400000-0x0000000001A29000-memory.dmp

        memory/3720-15-0x0000000000400000-0x0000000001A29000-memory.dmp

        memory/3720-14-0x0000000001A70000-0x0000000001B70000-memory.dmp