Analysis

  • max time kernel
    150s
  • max time network
    139s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220901-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
  • submitted
    06-02-2023 14:43

General

  • Target

    file.exe

  • Size

    321KB

  • MD5

    7511db96578a8cf5a167ad3e56bf8d21

  • SHA1

    8c031176a8898209396bb8761a306976e0738f87

  • SHA256

    91ddad0b9f989fd117f57bb3a1e027d47594f7d021010b3ed35e47c56a8ae61b

  • SHA512

    58edc1230d23eddea9d5179578d39d93ccc0caea75237793e25a92e1b198bae1077434828fd72e5849b6218b97d65894506ef7a6271d9e0e7badd8c6972f37f1

  • SSDEEP

    6144:DDL3jS8sACFU6NZcvhTSW0O6QltClRkMYqJ8:DDbjcFVZ4EQl8mMYV

Malware Config

Signatures

  • Detects Smokeloader packer 4 IoCs
  • SmokeLoader

    Modular backdoor trojan in use since 2014.

  • 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 WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\file.exe
    "C:\Users\Admin\AppData\Local\Temp\file.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1580
    • C:\Users\Admin\AppData\Local\Temp\file.exe
      "C:\Users\Admin\AppData\Local\Temp\file.exe"
      2⤵
      • Checks SCSI registry key(s)
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      PID:728

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/728-132-0x0000000000000000-mapping.dmp

  • memory/728-133-0x0000000000400000-0x0000000000409000-memory.dmp

    Filesize

    36KB

  • memory/728-136-0x0000000000400000-0x0000000000409000-memory.dmp

    Filesize

    36KB

  • memory/728-137-0x0000000000400000-0x0000000000409000-memory.dmp

    Filesize

    36KB

  • memory/1580-134-0x000000000079F000-0x00000000007B4000-memory.dmp

    Filesize

    84KB

  • memory/1580-135-0x0000000000700000-0x0000000000709000-memory.dmp

    Filesize

    36KB