Analysis

  • max time kernel
    4265102s
  • max time network
    154s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220112
  • submitted
    16-01-2022 07:47

General

  • Target

    75bdebf790bb5fbc5834fdfe7ab9f576.exe

  • Size

    313KB

  • MD5

    75bdebf790bb5fbc5834fdfe7ab9f576

  • SHA1

    309e31bf7c842d0988234e4d3117ab0502851b20

  • SHA256

    ad221a0e4b9b7a0a2da6f3c3fb059deda23076d897d7783835d9c39a354a2232

  • SHA512

    53335d72bb6446f82fec6a6bf6adb1afc2908e591d4fed0695541a231b3111d2523bff60afc6de1900c7aa6d1f27bf2c07b0f9058d572023a54c942b306dd7ec

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.

  • 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.

  • Checks processor information in registry 2 TTPs 2 IoCs

    Processor 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 AdjustPrivilegeToken 4 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\75bdebf790bb5fbc5834fdfe7ab9f576.exe
    "C:\Users\Admin\AppData\Local\Temp\75bdebf790bb5fbc5834fdfe7ab9f576.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2532
    • C:\Users\Admin\AppData\Local\Temp\75bdebf790bb5fbc5834fdfe7ab9f576.exe
      "C:\Users\Admin\AppData\Local\Temp\75bdebf790bb5fbc5834fdfe7ab9f576.exe"
      2⤵
      • Checks SCSI registry key(s)
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      PID:732
  • C:\Windows\system32\MusNotification.exe
    C:\Windows\system32\MusNotification.exe
    1⤵
    • Checks processor information in registry
    • Suspicious use of AdjustPrivilegeToken
    PID:1812

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/732-132-0x0000000000000000-mapping.dmp

  • memory/732-133-0x0000000000400000-0x0000000000409000-memory.dmp

    Filesize

    36KB

  • memory/2520-134-0x0000000003200000-0x0000000003216000-memory.dmp

    Filesize

    88KB

  • memory/2532-130-0x000000000052D000-0x000000000053E000-memory.dmp

    Filesize

    68KB

  • memory/2532-131-0x0000000000620000-0x0000000000629000-memory.dmp

    Filesize

    36KB