Analysis

  • max time kernel
    151s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-en-20211208
  • submitted
    31/01/2022, 02:51

General

  • Target
    44043fbb9d6d08a437d8301fc7f8bab4.exe
  • Size 233KB
  • Sample220131-db6lnaefa9
  • SHA256 ee8b0e0f159d28b8bdf306b5ae9fef26379525cb6f8d07d8855963ceb6a9f7d6
  • MD5 SHA1 SHA512

Malware Config

Extracted

Family
  • smokeloader

Version
  • 2020

C2
  • http://host-data-coin-11.com/

  • http://file-coin-host-12.com/

rc4.i32
rc4.i32

Signatures

  • SmokeLoader

    Modular backdoor trojan in use since 2014.

  • Deletes itself 1 IoCs
  • Suspicious use of SetThreadContext 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: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of SendNotifyMessage 2 IoCs
  • Suspicious use of WriteProcessMemory 7 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\44043fbb9d6d08a437d8301fc7f8bab4.exe
    "C:\Users\Admin\AppData\Local\Temp\44043fbb9d6d08a437d8301fc7f8bab4.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1940
    • C:\Users\Admin\AppData\Local\Temp\44043fbb9d6d08a437d8301fc7f8bab4.exe
      "C:\Users\Admin\AppData\Local\Temp\44043fbb9d6d08a437d8301fc7f8bab4.exe"
      2⤵
      • Checks SCSI registry key(s)
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      PID:1096

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        memory/1096-56-0x0000000000400000-0x0000000000409000-memory.dmp

        memory/1096-57-0x00000000760F1000-0x00000000760F3000-memory.dmp

        memory/1096-58-0x0000000000400000-0x0000000000409000-memory.dmp

        memory/1284-59-0x0000000002A30000-0x0000000002A46000-memory.dmp

        memory/1940-55-0x0000000000230000-0x0000000000239000-memory.dmp

        memory/1940-54-0x0000000000220000-0x0000000000229000-memory.dmp