Analysis

  • max time kernel
    161s
  • max time network
    164s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-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 6 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\581412f08e3333ebe7a4661f982106b1e395d3c8f384107df71db4768faec0c8.exe
    "C:\Users\Admin\AppData\Local\Temp\581412f08e3333ebe7a4661f982106b1e395d3c8f384107df71db4768faec0c8.exe"
    1⤵
    • Checks SCSI registry key(s)
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: MapViewOfSection
    PID:3204
  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=1036 --field-trial-handle=1928,i,13242902252791919845,10377620236057253993,262144 --variations-seed-version /prefetch:8
    1⤵
      PID:1680
    • C:\Users\Admin\AppData\Local\Temp\3FED.exe
      C:\Users\Admin\AppData\Local\Temp\3FED.exe
      1⤵
      • Executes dropped EXE
      PID:1568
    • C:\Users\Admin\AppData\Local\Temp\4618.exe
      C:\Users\Admin\AppData\Local\Temp\4618.exe
      1⤵
      • Executes dropped EXE
      PID:3848

    Network

    MITRE ATT&CK Matrix ATT&CK v13

    Discovery

    Query Registry

    2
    T1012

    Peripheral Device Discovery

    1
    T1120

    System Information Discovery

    1
    T1082

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\3FED.exe
      Filesize

      5.0MB

      MD5

      4871b0cc9f2c5d9831805ce8dbf3e51c

      SHA1

      15aa462a7ceba6c033064a56fa9984aa7ec15e0a

      SHA256

      e8b3976718b6a4a2c2c8bbe91ef6830876275ccbf78a72e8d1816328e4e627eb

      SHA512

      73532e6febf109aa489858ffc989bb69fdeefe8ade30261ecc9e9635e390714e77a70ca0c8ab3bc836c5318e2ec22dba1a063144fce23cbfd0dbd0b8400d0e6b

    • C:\Users\Admin\AppData\Local\Temp\4618.exe
      Filesize

      513KB

      MD5

      982035bc968af21d8078f6f11d420317

      SHA1

      036d697eb600cc0c2481b112f4475de42ca389c6

      SHA256

      5164258993a4db297eafcd03cadafb054a9fa9bae024ea0e047917a664c5c1b0

      SHA512

      bd3bedd6d1c93cec19257e5bb0b994790f9d08b9f76092cd79a3a558afc884a08c6250ef1889d4eb7a6c1a6f555d00a1a48108a63072007dc9d802b91cc24055

    • memory/1568-25-0x0000000002840000-0x00000000028C7000-memory.dmp
      Filesize

      540KB

    • memory/1568-32-0x00000000FFDB0000-0x00000000FFE3A000-memory.dmp
      Filesize

      552KB

    • memory/1568-31-0x0000000002840000-0x00000000028C7000-memory.dmp
      Filesize

      540KB

    • memory/1568-30-0x00000000FFDB0000-0x00000000FFE3A000-memory.dmp
      Filesize

      552KB

    • memory/1568-26-0x00000000FFDB0000-0x00000000FFE3A000-memory.dmp
      Filesize

      552KB

    • memory/1568-24-0x0000000002840000-0x00000000028C7000-memory.dmp
      Filesize

      540KB

    • memory/3204-8-0x0000000002480000-0x000000000248B000-memory.dmp
      Filesize

      44KB

    • memory/3204-5-0x0000000000400000-0x000000000086F000-memory.dmp
      Filesize

      4.4MB

    • memory/3204-1-0x00000000009A0000-0x0000000000AA0000-memory.dmp
      Filesize

      1024KB

    • memory/3204-3-0x0000000000400000-0x000000000086F000-memory.dmp
      Filesize

      4.4MB

    • memory/3204-2-0x0000000002480000-0x000000000248B000-memory.dmp
      Filesize

      44KB

    • memory/3240-4-0x00000000009C0000-0x00000000009D6000-memory.dmp
      Filesize

      88KB

    • memory/3848-21-0x0000000077100000-0x0000000077315000-memory.dmp
      Filesize

      2.1MB

    • memory/3848-22-0x0000000000010000-0x0000000000096000-memory.dmp
      Filesize

      536KB

    • memory/3848-18-0x0000000000010000-0x0000000000096000-memory.dmp
      Filesize

      536KB