Analysis

  • max time kernel
    150s
  • max time network
    144s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230915-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230915-enlocale:en-usos:windows10-2004-x64system
  • submitted
    07/10/2023, 11:32

General

  • Target

    NEAS.3c258ed46041141a294c68b2de32dfc67d39bb77a9a3e53542f8547ab0aaea83_JC.exe

  • Size

    275KB

  • MD5

    e79af3a798e4a6b69dc0e00e20666c5f

  • SHA1

    f84f2d86d2a6722cb010b7b49ba80acff95cce10

  • SHA256

    3c258ed46041141a294c68b2de32dfc67d39bb77a9a3e53542f8547ab0aaea83

  • SHA512

    5694e04864132d529f60128b0ba2a93bbb22fe380f75b29c3498767bf80ffe42bccc430bb0272e2a3c51ef11133cf61bf69f06f1fc3a0dc24c4345ba997f4746

  • SSDEEP

    3072:aE7w9Z+xh4FQGalui6QrhAKwB6b8uJReVsh6P7zfldapDxKCrost8:BKZWh4FQLuJfB6b8uJRX6zzflgz0I

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.

  • 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\NEAS.3c258ed46041141a294c68b2de32dfc67d39bb77a9a3e53542f8547ab0aaea83_JC.exe
    "C:\Users\Admin\AppData\Local\Temp\NEAS.3c258ed46041141a294c68b2de32dfc67d39bb77a9a3e53542f8547ab0aaea83_JC.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:4328
    • C:\Users\Admin\AppData\Local\Temp\NEAS.3c258ed46041141a294c68b2de32dfc67d39bb77a9a3e53542f8547ab0aaea83_JC.exe
      "C:\Users\Admin\AppData\Local\Temp\NEAS.3c258ed46041141a294c68b2de32dfc67d39bb77a9a3e53542f8547ab0aaea83_JC.exe"
      2⤵
      • Checks SCSI registry key(s)
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      PID:1160

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • memory/1160-3-0x0000000000400000-0x0000000000409000-memory.dmp

    Filesize

    36KB

  • memory/1160-4-0x0000000000400000-0x0000000000409000-memory.dmp

    Filesize

    36KB

  • memory/1160-6-0x0000000000400000-0x0000000000409000-memory.dmp

    Filesize

    36KB

  • memory/3188-5-0x00000000027A0000-0x00000000027B6000-memory.dmp

    Filesize

    88KB

  • memory/4328-1-0x0000000002590000-0x0000000002690000-memory.dmp

    Filesize

    1024KB

  • memory/4328-2-0x0000000002530000-0x0000000002539000-memory.dmp

    Filesize

    36KB