Analysis

  • max time kernel
    150s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    11-03-2024 02:42

General

  • Target

    bfa14859432cc51e9f8a9b632dc38713.exe

  • Size

    302KB

  • MD5

    bfa14859432cc51e9f8a9b632dc38713

  • SHA1

    b76262d0b04a555f9ddbef1e3f8a99fe8bf50f5f

  • SHA256

    940856f93e56ecd69b6833c94a78247b3f8d60348ac9b73928fd338113fbbc9e

  • SHA512

    92df1e4440a47ac40a7a32fcd064632b4ca414e85a8b607d53dee0c95980159db198aff55247a73df59914eb0db4828685d5d21a0659ead1674d252bc9ac01d9

  • SSDEEP

    6144:aZnWXhSZxnTlV+W0OcEkTiUDeDN3ym5+l+IF/KBmWHNF3D:TXh+JiW0OcBiOeD8nZMBmW/

Malware Config

Extracted

Family

smokeloader

Botnet

pub1

Extracted

Family

smokeloader

Version

2020

C2

http://aucmoney.com/upload/

http://thegymmum.com/upload/

http://atvcampingtrips.com/upload/

http://kuapakualaman.com/upload/

http://renatazarazua.com/upload/

http://nasufmutlu.com/upload/

rc4.i32
rc4.i32

Signatures

  • SmokeLoader

    Modular backdoor trojan in use since 2014.

  • Deletes itself 1 IoCs
  • Program crash 1 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 AdjustPrivilegeToken 2 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\bfa14859432cc51e9f8a9b632dc38713.exe
    "C:\Users\Admin\AppData\Local\Temp\bfa14859432cc51e9f8a9b632dc38713.exe"
    1⤵
    • Checks SCSI registry key(s)
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: MapViewOfSection
    PID:516
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 516 -s 368
      2⤵
      • Program crash
      PID:3668
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 516 -ip 516
    1⤵
      PID:2692

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/516-1-0x0000000000B10000-0x0000000000C10000-memory.dmp

      Filesize

      1024KB

    • memory/516-2-0x00000000001C0000-0x00000000001C9000-memory.dmp

      Filesize

      36KB

    • memory/516-3-0x0000000000400000-0x0000000000902000-memory.dmp

      Filesize

      5.0MB

    • memory/516-7-0x0000000000400000-0x0000000000902000-memory.dmp

      Filesize

      5.0MB

    • memory/3484-4-0x0000000001250000-0x0000000001266000-memory.dmp

      Filesize

      88KB