Analysis

  • max time kernel
    152s
  • max time network
    145s
  • platform
    windows7_x64
  • resource
    win7-20230831-en
  • resource tags

    arch:x64arch:x86image:win7-20230831-enlocale:en-usos:windows7-x64system
  • submitted
    12/10/2023, 18:55

General

  • Target

    file.exe

  • Size

    253KB

  • MD5

    3d7732ac58ca3d98f7fba6e40314376e

  • SHA1

    9a8811e4bc764a9ff0e6aac7dc6caca095c718b6

  • SHA256

    36d451f541fd85000b74a22da8d6f57c68268e067c79beb2873cce1a30df3d6e

  • SHA512

    223c754ac506b71dfe578998c07241c683d3af9734b0cde5b931b83779f77d727612213fde0ed1404f803f32485d8260a4c94efd16f4d1d408de1c35f74d6557

  • SSDEEP

    3072:PecmM1MksbHYLWGe0rRC1Nv1xS45rRwVPhz1N:AMGksQJe0dCXv1M451wD

Malware Config

Extracted

Family

smokeloader

Version

2022

C2

http://potunulit.org/

http://hutnilior.net/

http://bulimu55t.net/

http://soryytlic4.net/

http://novanosa5org.org/

http://nuljjjnuli.org/

http://tolilolihul.net/

http://somatoka51hub.net/

http://hujukui3.net/

http://bukubuka1.net/

http://golilopaster.org/

http://newzelannd66.org/

http://otriluyttn.org/

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 WriteProcessMemory 4 IoCs

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:2212
  • C:\Windows\system32\taskeng.exe
    taskeng.exe {F328947D-CAFB-4159-AC2B-4BC5B3899097} S-1-5-21-3849525425-30183055-657688904-1000:KGPMNUDG\Admin:Interactive:[1]
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2716
    • C:\Users\Admin\AppData\Roaming\eeitsbs
      C:\Users\Admin\AppData\Roaming\eeitsbs
      2⤵
      • Executes dropped EXE
      • Checks SCSI registry key(s)
      • Suspicious behavior: MapViewOfSection
      PID:2740

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    253KB

    MD5

    3d7732ac58ca3d98f7fba6e40314376e

    SHA1

    9a8811e4bc764a9ff0e6aac7dc6caca095c718b6

    SHA256

    36d451f541fd85000b74a22da8d6f57c68268e067c79beb2873cce1a30df3d6e

    SHA512

    223c754ac506b71dfe578998c07241c683d3af9734b0cde5b931b83779f77d727612213fde0ed1404f803f32485d8260a4c94efd16f4d1d408de1c35f74d6557

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

    Filesize

    253KB

    MD5

    3d7732ac58ca3d98f7fba6e40314376e

    SHA1

    9a8811e4bc764a9ff0e6aac7dc6caca095c718b6

    SHA256

    36d451f541fd85000b74a22da8d6f57c68268e067c79beb2873cce1a30df3d6e

    SHA512

    223c754ac506b71dfe578998c07241c683d3af9734b0cde5b931b83779f77d727612213fde0ed1404f803f32485d8260a4c94efd16f4d1d408de1c35f74d6557

  • memory/1252-4-0x0000000002A40000-0x0000000002A56000-memory.dmp

    Filesize

    88KB

  • memory/1252-17-0x0000000002E70000-0x0000000002E86000-memory.dmp

    Filesize

    88KB

  • memory/2212-1-0x00000000008B0000-0x00000000009B0000-memory.dmp

    Filesize

    1024KB

  • memory/2212-2-0x0000000000220000-0x0000000000229000-memory.dmp

    Filesize

    36KB

  • memory/2212-3-0x0000000000400000-0x000000000070E000-memory.dmp

    Filesize

    3.1MB

  • memory/2212-5-0x0000000000400000-0x000000000070E000-memory.dmp

    Filesize

    3.1MB

  • memory/2212-8-0x0000000000220000-0x0000000000229000-memory.dmp

    Filesize

    36KB

  • memory/2740-15-0x0000000000800000-0x0000000000900000-memory.dmp

    Filesize

    1024KB

  • memory/2740-16-0x0000000000400000-0x000000000070E000-memory.dmp

    Filesize

    3.1MB

  • memory/2740-20-0x0000000000400000-0x000000000070E000-memory.dmp

    Filesize

    3.1MB