Overview

overview

10

Static

static

1

file.exe

windows7-x64

10

file.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    151s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230220-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
  • submitted
    27/03/2023, 12:39

Sharing

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General

  • Target

    file.exe

  • Size

    259KB

  • MD5

    fde26eb8c09066b3c490e1350906e941

  • SHA1

    be0954dc552656cf0d8845ed94eb35f473e43b59

  • SHA256

    f56c5a8b0f93cb5ee3f14e5fdab4466999a3c305bd0f3ee4384d57e38e868a16

  • SHA512

    b0b75dbdfd123fb4443721a1a6ab5fde74b87315e9ec90f189a1a4f8dcc665e721aecd741abf37ef238484ac4803a8e1a765f3566dba8fa489a5ed41e0f731ad

  • SSDEEP

    3072:p1ZOh38zlnVg6xkCLHrwZYtadGqJydBBeN9tO8b6UKgj5Wu6NXv:XZ83+gWkCLLwZGadGqJydBBeBnOv/

Score
10/10
smokeloaderlabbackdoortrojan

Malware Config

Extracted

Family

smokeloader

Botnet

lab

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.

    trojanbackdoorsmokeloader
  • Executes dropped EXE 2 IoCs
  • Suspicious use of SetThreadContext 2 IoCs
  • Checks SCSI registry key(s) 3 TTPs 6 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 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 12 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.

    persistence

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:5100
    • 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:3284
  • C:\Users\Admin\AppData\Roaming\whvjaai
    C:\Users\Admin\AppData\Roaming\whvjaai
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:4876
    • C:\Users\Admin\AppData\Roaming\whvjaai
      C:\Users\Admin\AppData\Roaming\whvjaai
      2⤵
      • Executes dropped EXE
      • Checks SCSI registry key(s)
      • Suspicious behavior: MapViewOfSection
      PID:2044

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        • C:\Users\Admin\AppData\Roaming\whvjaai
          Filesize

          259KB

          MD5

          fde26eb8c09066b3c490e1350906e941

          SHA1

          be0954dc552656cf0d8845ed94eb35f473e43b59

          SHA256

          f56c5a8b0f93cb5ee3f14e5fdab4466999a3c305bd0f3ee4384d57e38e868a16

          SHA512

          b0b75dbdfd123fb4443721a1a6ab5fde74b87315e9ec90f189a1a4f8dcc665e721aecd741abf37ef238484ac4803a8e1a765f3566dba8fa489a5ed41e0f731ad

          Download Submit

        • C:\Users\Admin\AppData\Roaming\whvjaai
          Filesize

          259KB

          MD5

          fde26eb8c09066b3c490e1350906e941

          SHA1

          be0954dc552656cf0d8845ed94eb35f473e43b59

          SHA256

          f56c5a8b0f93cb5ee3f14e5fdab4466999a3c305bd0f3ee4384d57e38e868a16

          SHA512

          b0b75dbdfd123fb4443721a1a6ab5fde74b87315e9ec90f189a1a4f8dcc665e721aecd741abf37ef238484ac4803a8e1a765f3566dba8fa489a5ed41e0f731ad

          Download Submit

        • C:\Users\Admin\AppData\Roaming\whvjaai
          Filesize

          259KB

          MD5

          fde26eb8c09066b3c490e1350906e941

          SHA1

          be0954dc552656cf0d8845ed94eb35f473e43b59

          SHA256

          f56c5a8b0f93cb5ee3f14e5fdab4466999a3c305bd0f3ee4384d57e38e868a16

          SHA512

          b0b75dbdfd123fb4443721a1a6ab5fde74b87315e9ec90f189a1a4f8dcc665e721aecd741abf37ef238484ac4803a8e1a765f3566dba8fa489a5ed41e0f731ad

          Download Submit

        • memory/2044-150-0x0000000000400000-0x0000000000409000-memory.dmp

          Filesize

          36KB

          Download

        • memory/2044-152-0x0000000000400000-0x0000000000409000-memory.dmp

          Filesize

          36KB

          Download

        • memory/3140-137-0x0000000000790000-0x00000000007A6000-memory.dmp

          Filesize

          88KB

          Download

        • memory/3140-151-0x0000000002BE0000-0x0000000002BF6000-memory.dmp

          Filesize

          88KB

          Download

        • memory/3284-134-0x0000000000400000-0x0000000000409000-memory.dmp

          Filesize

          36KB

          Download

        • memory/3284-136-0x0000000000400000-0x0000000000409000-memory.dmp

          Filesize

          36KB

          Download

        • memory/3284-138-0x0000000000400000-0x0000000000409000-memory.dmp

          Filesize

          36KB

          Download

        • memory/5100-135-0x0000000000870000-0x0000000000879000-memory.dmp

          Filesize

          36KB

          Download