Analysis

  • max time kernel
    151s
  • max time network
    126s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    17-04-2024 14:52

General

  • Target

    581412f08e3333ebe7a4661f982106b1e395d3c8f384107df71db4768faec0c8.exe

  • Size

    312KB

  • MD5

    5a284c7f753ae16b6d2739e195ab6633

  • SHA1

    7198366d058a0816fb145e09ee34034d079fccf2

  • SHA256

    581412f08e3333ebe7a4661f982106b1e395d3c8f384107df71db4768faec0c8

  • SHA512

    5a376e1fc3435087c6827dd3fe3e6eaddd1f617d3beaf1e0dbd9583399d6d9b299ca9f60375c0e2398970eef04fc9ee14ba84b669422d57851caad7f083f4813

  • SSDEEP

    3072:9j8aOxWKuLtl+dJwqdN+8WZxmw9JCzW2Y/7ZYjY5n0HQGsR1hidO:96xELH+dlY8AwCkLY/tYe0HQlji

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

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

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\581412f08e3333ebe7a4661f982106b1e395d3c8f384107df71db4768faec0c8.exe
    "C:\Users\Admin\AppData\Local\Temp\581412f08e3333ebe7a4661f982106b1e395d3c8f384107df71db4768faec0c8.exe"
    1⤵
    • Checks SCSI registry key(s)
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: MapViewOfSection
    PID:2876
  • C:\Users\Admin\AppData\Local\Temp\7CFD.exe
    C:\Users\Admin\AppData\Local\Temp\7CFD.exe
    1⤵
    • Executes dropped EXE
    PID:2416
  • C:\Users\Admin\AppData\Local\Temp\7F3F.exe
    C:\Users\Admin\AppData\Local\Temp\7F3F.exe
    1⤵
    • Executes dropped EXE
    PID:2496

Network

MITRE ATT&CK Matrix ATT&CK v13

Discovery

Query Registry

1
T1012

Peripheral Device Discovery

1
T1120

System Information Discovery

1
T1082

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\7CFD.exe
    Filesize

    5.0MB

    MD5

    4871b0cc9f2c5d9831805ce8dbf3e51c

    SHA1

    15aa462a7ceba6c033064a56fa9984aa7ec15e0a

    SHA256

    e8b3976718b6a4a2c2c8bbe91ef6830876275ccbf78a72e8d1816328e4e627eb

    SHA512

    73532e6febf109aa489858ffc989bb69fdeefe8ade30261ecc9e9635e390714e77a70ca0c8ab3bc836c5318e2ec22dba1a063144fce23cbfd0dbd0b8400d0e6b

  • C:\Users\Admin\AppData\Local\Temp\7F3F.exe
    Filesize

    513KB

    MD5

    982035bc968af21d8078f6f11d420317

    SHA1

    036d697eb600cc0c2481b112f4475de42ca389c6

    SHA256

    5164258993a4db297eafcd03cadafb054a9fa9bae024ea0e047917a664c5c1b0

    SHA512

    bd3bedd6d1c93cec19257e5bb0b994790f9d08b9f76092cd79a3a558afc884a08c6250ef1889d4eb7a6c1a6f555d00a1a48108a63072007dc9d802b91cc24055

  • memory/1256-4-0x0000000002130000-0x0000000002146000-memory.dmp
    Filesize

    88KB

  • memory/2496-22-0x0000000000010000-0x0000000000096000-memory.dmp
    Filesize

    536KB

  • memory/2496-25-0x0000000000010000-0x0000000000096000-memory.dmp
    Filesize

    536KB

  • memory/2876-1-0x00000000002B0000-0x00000000003B0000-memory.dmp
    Filesize

    1024KB

  • memory/2876-2-0x00000000001B0000-0x00000000001BB000-memory.dmp
    Filesize

    44KB

  • memory/2876-3-0x0000000000400000-0x000000000086F000-memory.dmp
    Filesize

    4.4MB

  • memory/2876-5-0x0000000000400000-0x000000000086F000-memory.dmp
    Filesize

    4.4MB