Analysis

  • max time kernel
    150s
  • max time network
    131s
  • platform
    windows10-1703_x64
  • resource
    win10-20230915-en
  • resource tags

    arch:x64arch:x86image:win10-20230915-enlocale:en-usos:windows10-1703-x64system
  • submitted
    07-10-2023 16:41

General

  • Target

    7453bb68d8921b170fbf7e26c799d2c8ecd2d1e85c5cd41e2a923bd4bdb1089b.exe

  • Size

    288KB

  • MD5

    a684e33bf6d9c070e5f4e9c16b06eefb

  • SHA1

    319adf4911e2e170516a06602381ea217e295248

  • SHA256

    7453bb68d8921b170fbf7e26c799d2c8ecd2d1e85c5cd41e2a923bd4bdb1089b

  • SHA512

    d95edccac0028c6f8197ffb77b7cec58ae8e4cf341c9c2f43aeb7c7702ad48d7c2f91fb8d9f9399f9ac7574264993f274ea232ec587801fc147fc578ad9564d3

  • SSDEEP

    3072:qLZGaRdWCJ++SxtINq5l6HsvMIj2A5k1iOeRE4Ut7pKK3F4a:QGmWh+Sxs4l6eBjNwmE4UtDF

Malware Config

Extracted

Family

smokeloader

Botnet

up3

Extracted

Family

smokeloader

Version

2020

C2

http://host-file-host6.com/

http://host-host-file8.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 WriteProcessMemory 6 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

Processes

  • C:\Users\Admin\AppData\Local\Temp\7453bb68d8921b170fbf7e26c799d2c8ecd2d1e85c5cd41e2a923bd4bdb1089b.exe
    "C:\Users\Admin\AppData\Local\Temp\7453bb68d8921b170fbf7e26c799d2c8ecd2d1e85c5cd41e2a923bd4bdb1089b.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:5052
    • C:\Users\Admin\AppData\Local\Temp\7453bb68d8921b170fbf7e26c799d2c8ecd2d1e85c5cd41e2a923bd4bdb1089b.exe
      "C:\Users\Admin\AppData\Local\Temp\7453bb68d8921b170fbf7e26c799d2c8ecd2d1e85c5cd41e2a923bd4bdb1089b.exe"
      2⤵
      • Checks SCSI registry key(s)
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      PID:816

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/816-3-0x0000000000400000-0x0000000000409000-memory.dmp

    Filesize

    36KB

  • memory/816-4-0x0000000000400000-0x0000000000409000-memory.dmp

    Filesize

    36KB

  • memory/816-6-0x0000000000400000-0x0000000000409000-memory.dmp

    Filesize

    36KB

  • memory/3248-5-0x0000000001290000-0x00000000012A6000-memory.dmp

    Filesize

    88KB

  • memory/5052-1-0x0000000002590000-0x0000000002690000-memory.dmp

    Filesize

    1024KB

  • memory/5052-2-0x00000000024D0000-0x00000000024D9000-memory.dmp

    Filesize

    36KB