Analysis

  • max time kernel
    151s
  • max time network
    71s
  • platform
    windows10-1703_x64
  • resource
    win10-20230220-en
  • resource tags

    arch:x64arch:x86image:win10-20230220-enlocale:en-usos:windows10-1703-x64system
  • submitted
    09/05/2023, 04:51

General

  • Target

    33930ac5b5a58d7b66f205e0e131e29b2ea421316a07b4a4020db722c399f66d.exe

  • Size

    314KB

  • MD5

    6e8d381d6ab9cdd0dc5b09afbbdc3b9c

  • SHA1

    df7e124cc58e4b9c7767fbaacb707f485779deca

  • SHA256

    33930ac5b5a58d7b66f205e0e131e29b2ea421316a07b4a4020db722c399f66d

  • SHA512

    b69cdc09fe79596d7ff7dde899ddafdf8ba5d2a7ea0757fe4fa9e577e9d293ae7a88748af1a11c22742c599bd6ea4a4918cf58ad94217872265598c77a7f389f

  • SSDEEP

    3072:wpXcVYplL5WuLSJRRz5SJlER7zyH2yxxNE4T83HlyV5T1hr5EdjlGoy69NCis+:IcVYpllLLSnRVWl6P62yREyV5W/9h

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.

  • 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\33930ac5b5a58d7b66f205e0e131e29b2ea421316a07b4a4020db722c399f66d.exe
    "C:\Users\Admin\AppData\Local\Temp\33930ac5b5a58d7b66f205e0e131e29b2ea421316a07b4a4020db722c399f66d.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1764
    • C:\Users\Admin\AppData\Local\Temp\33930ac5b5a58d7b66f205e0e131e29b2ea421316a07b4a4020db722c399f66d.exe
      "C:\Users\Admin\AppData\Local\Temp\33930ac5b5a58d7b66f205e0e131e29b2ea421316a07b4a4020db722c399f66d.exe"
      2⤵
      • Checks SCSI registry key(s)
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      PID:512

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/512-119-0x0000000000400000-0x0000000000409000-memory.dmp

    Filesize

    36KB

  • memory/512-121-0x0000000000400000-0x0000000000409000-memory.dmp

    Filesize

    36KB

  • memory/512-123-0x0000000000400000-0x0000000000409000-memory.dmp

    Filesize

    36KB

  • memory/1764-120-0x0000000000780000-0x0000000000789000-memory.dmp

    Filesize

    36KB

  • memory/3172-122-0x0000000000D20000-0x0000000000D36000-memory.dmp

    Filesize

    88KB