Analysis

  • max time kernel
    150s
  • max time network
    119s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    23-05-2024 19:03

General

  • Target

    2f0934382aee1d9b657ffa98a2699fe864ed0a5bf8e1fc03bdcd479244e27b84.exe

  • Size

    269KB

  • MD5

    ac88a92b64ce3501e09fb1871eb76dc9

  • SHA1

    539a8f7a674aba1fa8c4022bdb5210c9d2ce37a3

  • SHA256

    2f0934382aee1d9b657ffa98a2699fe864ed0a5bf8e1fc03bdcd479244e27b84

  • SHA512

    fc328382e8b544a43c404d2824784609322b1e2f2b84e5bce58c572793c4fb040d82632ab89527c816e4feb170025bf3cf59d904a85c378e11d6751abe4a599a

  • SSDEEP

    6144:a6SctlMQMY6Vo++E0R6gFAOwIOYIL+g35:a65tiQMYlXuIE35

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\2f0934382aee1d9b657ffa98a2699fe864ed0a5bf8e1fc03bdcd479244e27b84.exe
    "C:\Users\Admin\AppData\Local\Temp\2f0934382aee1d9b657ffa98a2699fe864ed0a5bf8e1fc03bdcd479244e27b84.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1968
    • 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:1988
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1968 -s 92
      2⤵
      • Program crash
      PID:2752

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/1200-5-0x00000000030A0000-0x00000000030B6000-memory.dmp

    Filesize

    88KB

  • memory/1988-3-0x0000000000400000-0x0000000000409000-memory.dmp

    Filesize

    36KB

  • memory/1988-2-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

    Filesize

    4KB

  • memory/1988-1-0x0000000000400000-0x0000000000409000-memory.dmp

    Filesize

    36KB

  • memory/1988-0-0x0000000000400000-0x0000000000409000-memory.dmp

    Filesize

    36KB

  • memory/1988-4-0x0000000000400000-0x0000000000409000-memory.dmp

    Filesize

    36KB

  • memory/1988-6-0x0000000000400000-0x0000000000409000-memory.dmp

    Filesize

    36KB