Analysis

  • max time kernel
    150s
  • max time network
    156s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230915-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230915-enlocale:en-usos:windows10-2004-x64system
  • submitted
    16-09-2023 12:52

General

  • Target

    6e3619863e6e7e7171a706a45fcd6950a71a7efdaddec2312e81ad956d4cd7fa_JC.exe

  • Size

    273KB

  • MD5

    6ecd6380abc0e1062e57a2ebc9b5e101

  • SHA1

    555fbdd76f26ded014967a8569b331ef6f3e1a3c

  • SHA256

    6e3619863e6e7e7171a706a45fcd6950a71a7efdaddec2312e81ad956d4cd7fa

  • SHA512

    e8f06ecfaf42caac9c0444d52ddb98f89dffeb83872f80012535ee469f5ff6a091af09631bfe3f9c63a9d9e8c8a9347c1dd1fdcb1ec3bddf327733a663174aa6

  • SSDEEP

    3072:R/ZznpWXu3uR/iaMLVGnoh2rCgmJezGM5cbRZlqWbCKhvNLOR:DzUXu3uJiVLTXJe8lvT7OR

Malware Config

Extracted

Family

smokeloader

Botnet

pub1

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.

  • 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 UnmapMainImage 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\6e3619863e6e7e7171a706a45fcd6950a71a7efdaddec2312e81ad956d4cd7fa_JC.exe
    "C:\Users\Admin\AppData\Local\Temp\6e3619863e6e7e7171a706a45fcd6950a71a7efdaddec2312e81ad956d4cd7fa_JC.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1004
    • C:\Users\Admin\AppData\Local\Temp\6e3619863e6e7e7171a706a45fcd6950a71a7efdaddec2312e81ad956d4cd7fa_JC.exe
      "C:\Users\Admin\AppData\Local\Temp\6e3619863e6e7e7171a706a45fcd6950a71a7efdaddec2312e81ad956d4cd7fa_JC.exe"
      2⤵
      • Checks SCSI registry key(s)
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      PID:1748

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/776-5-0x00000000030F0000-0x0000000003106000-memory.dmp

    Filesize

    88KB

  • memory/1004-1-0x00000000008F0000-0x00000000009F0000-memory.dmp

    Filesize

    1024KB

  • memory/1004-2-0x00000000008D0000-0x00000000008D9000-memory.dmp

    Filesize

    36KB

  • memory/1748-3-0x0000000000400000-0x0000000000409000-memory.dmp

    Filesize

    36KB

  • memory/1748-4-0x0000000000400000-0x0000000000409000-memory.dmp

    Filesize

    36KB

  • memory/1748-6-0x0000000000400000-0x0000000000409000-memory.dmp

    Filesize

    36KB