Resubmissions

11/04/2024, 09:38

240411-ll3lragg4510

11/04/2024, 09:38

240411-ll3azsbh8z10

11/04/2024, 09:38

240411-ll2pfsgg4410

11/04/2024, 09:38

240411-ll2dpabh8x10

11/04/2024, 09:37

240411-llsrjsbh8v10

09/04/2024, 03:24

240409-dx2vlage8110

09/04/2024, 03:23

240409-dxjn1sda4410

16/01/2024, 16:35

240116-t3vapsehak10

Analysis

  • max time kernel
    1800s
  • max time network
    1560s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    11/04/2024, 09:38

General

  • Target
    file.exe
  • Size 234KB
  • Sample240411-ll3lragg45
  • SHA256 b4d9bc9471648ef8d072e524b4c6e3f5793e29b663bc85a9809912e7fad320c2
  • 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.

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: MapViewOfSection 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 6 IoCs
  • Suspicious use of WriteProcessMemory 12 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\file.exe
    "C:\Users\Admin\AppData\Local\Temp\file.exe"
    1⤵
    • Checks SCSI registry key(s)
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: MapViewOfSection
    PID:1700
  • C:\Windows\system32\taskeng.exe
    taskeng.exe {CC860983-C907-4024-8C1E-ED4DD1710371} S-1-5-21-3452737119-3959686427-228443150-1000:QGTQZTRE\Admin:Interactive:[1]
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2720
    • C:\Users\Admin\AppData\Roaming\shhavvi
      C:\Users\Admin\AppData\Roaming\shhavvi
      2⤵
      • Executes dropped EXE
      • Checks SCSI registry key(s)
      • Suspicious behavior: MapViewOfSection
      PID:2920
  • C:\Windows\system32\taskeng.exe
    taskeng.exe {2594E963-358A-47BA-A6E2-4E8AFB14A837} S-1-5-21-3452737119-3959686427-228443150-1000:QGTQZTRE\Admin:Interactive:[1]
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2072
    • C:\Users\Admin\AppData\Roaming\shhavvi
      C:\Users\Admin\AppData\Roaming\shhavvi
      2⤵
      • Executes dropped EXE
      • Checks SCSI registry key(s)
      • Suspicious behavior: MapViewOfSection
      PID:1000
  • C:\Windows\system32\taskeng.exe
    taskeng.exe {48B35808-D0D9-468B-8891-DC277B68EE49} S-1-5-21-3452737119-3959686427-228443150-1000:QGTQZTRE\Admin:Interactive:[1]
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2040
    • C:\Users\Admin\AppData\Roaming\shhavvi
      C:\Users\Admin\AppData\Roaming\shhavvi
      2⤵
      • Executes dropped EXE
      • Checks SCSI registry key(s)
      • Suspicious behavior: MapViewOfSection
      PID:1744

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        shhavvi

        • Path C:\Users\Admin\AppData\Roaming\shhavvi
        • Size 234KB
        • SHA256 b4d9bc9471648ef8d072e524b4c6e3f5793e29b663bc85a9809912e7fad320c2
        • MD5 SHA1 SHA512 SSDEEP

        memory/1000-26-0x0000000000400000-0x0000000000440000-memory.dmp

        memory/1000-24-0x0000000000400000-0x0000000000440000-memory.dmp

        memory/1000-23-0x0000000000250000-0x0000000000350000-memory.dmp

        memory/1204-16-0x00000000029F0000-0x0000000002A06000-memory.dmp

        memory/1204-4-0x0000000002980000-0x0000000002996000-memory.dmp

        memory/1204-34-0x0000000002DB0000-0x0000000002DC6000-memory.dmp

        memory/1204-25-0x0000000002A80000-0x0000000002A96000-memory.dmp

        memory/1700-3-0x0000000000400000-0x0000000000440000-memory.dmp

        memory/1700-5-0x0000000000400000-0x0000000000440000-memory.dmp

        memory/1700-2-0x0000000000220000-0x000000000022B000-memory.dmp

        memory/1700-1-0x00000000004E0000-0x00000000005E0000-memory.dmp

        memory/1744-32-0x0000000000230000-0x0000000000330000-memory.dmp

        memory/1744-33-0x0000000000400000-0x0000000000440000-memory.dmp

        memory/1744-35-0x0000000000400000-0x0000000000440000-memory.dmp

        memory/2920-19-0x0000000000400000-0x0000000000440000-memory.dmp

        memory/2920-15-0x0000000000400000-0x0000000000440000-memory.dmp

        memory/2920-14-0x0000000000290000-0x0000000000390000-memory.dmp