Analysis

  • max time kernel
    150s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    10-03-2024 16:30

General

  • Target

    bf1336f26ed7df9c1d72126e43f558a8.exe

  • Size

    274KB

  • MD5

    bf1336f26ed7df9c1d72126e43f558a8

  • SHA1

    2dea26934da1770a8720bb788a61f7b71385b1cb

  • SHA256

    87fc3e042747ec6e69f1c32bb906de41b2a6e4b1fdd6bdfb041c3689002e97cf

  • SHA512

    9d4d626c0fe9838db7e894b5391fa4ede65b1fc3083bdb7334cc6744943d04f0009d6e8a7821aed928f9e2f43be940323b28d15addaf4ff4e627034ce1164b17

  • SSDEEP

    6144:EkDh4MkEirjH29xfUBTVqWBC1dgbRk8suE2w2xQr:vh3kEi3W99kVqWBCIbQuE2w2ur

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
  • 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\bf1336f26ed7df9c1d72126e43f558a8.exe
    "C:\Users\Admin\AppData\Local\Temp\bf1336f26ed7df9c1d72126e43f558a8.exe"
    1⤵
    • Checks SCSI registry key(s)
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: MapViewOfSection
    PID:4492
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4492 -s 372
      2⤵
      • Program crash
      PID:3096
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 440 -p 4492 -ip 4492
    1⤵
      PID:2588

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/3360-4-0x0000000002EC0000-0x0000000002ED6000-memory.dmp

      Filesize

      88KB

    • memory/4492-2-0x0000000002510000-0x0000000002519000-memory.dmp

      Filesize

      36KB

    • memory/4492-1-0x00000000025A0000-0x00000000026A0000-memory.dmp

      Filesize

      1024KB

    • memory/4492-3-0x0000000000400000-0x00000000023AF000-memory.dmp

      Filesize

      31.7MB

    • memory/4492-7-0x0000000000400000-0x00000000023AF000-memory.dmp

      Filesize

      31.7MB

    • memory/4492-8-0x0000000002510000-0x0000000002519000-memory.dmp

      Filesize

      36KB