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Analysis

  • max time kernel
    150s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7-20240220-en
  • resource tags

    arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
  • submitted
    24/05/2024, 07:42

General

  • Target

    bd0a957eaebb4aaad5274b94282e2e629645d3cfc2d373f90812b885800536c0.exe

  • Size

    270KB

  • MD5

    fedcba531f97a219853ff2322af626d0

  • SHA1

    b141998a2cf8032e977f2ea8d7a5de8721422c5c

  • SHA256

    bd0a957eaebb4aaad5274b94282e2e629645d3cfc2d373f90812b885800536c0

  • SHA512

    f540b590cb1b2933c928262a57246f32bc9dc1538159870e9a31dbc61fe78ff3d95306c1cba96249ae0c43765981cd7fe41fa289382531a6ce6ca923665a3aff

  • SSDEEP

    6144:svpK3RlYo26KFCW8m3JqxAO1A591bVx7:sRK3zZ2tnEbA5

Malware Config

Extracted

Family

smokeloader

Version

2022

C2

http://77.91.68.29/fks/

rc4.i32
rc4.i32

Signatures

  • SmokeLoader

    Modular backdoor trojan in use since 2014.

  • Suspicious use of SetThreadContext 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 WriteProcessMemory 14 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\bd0a957eaebb4aaad5274b94282e2e629645d3cfc2d373f90812b885800536c0.exe
    "C:\Users\Admin\AppData\Local\Temp\bd0a957eaebb4aaad5274b94282e2e629645d3cfc2d373f90812b885800536c0.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2464
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe"
      2⤵
      • Checks SCSI registry key(s)
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      PID:836
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2464 -s 136
      2⤵
      • Program crash
      PID:2080

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • memory/836-3-0x0000000000400000-0x0000000000409000-memory.dmp

    Filesize

    36KB

  • memory/836-2-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

    Filesize

    4KB

  • memory/836-1-0x0000000000400000-0x0000000000409000-memory.dmp

    Filesize

    36KB

  • memory/836-0-0x0000000000400000-0x0000000000409000-memory.dmp

    Filesize

    36KB

  • memory/836-4-0x0000000000400000-0x0000000000409000-memory.dmp

    Filesize

    36KB

  • memory/836-6-0x0000000000400000-0x0000000000409000-memory.dmp

    Filesize

    36KB

  • memory/1196-5-0x0000000003E50000-0x0000000003E66000-memory.dmp

    Filesize

    88KB