Analysis

  • max time kernel
    150s
  • max time network
    125s
  • platform
    windows7_x64
  • resource
    win7-20230831-en
  • resource tags

    arch:x64arch:x86image:win7-20230831-enlocale:en-usos:windows7-x64system
  • submitted
    07-10-2023 17:19

General

  • Target

    NEAS.42e4b6f6bc72a439b91ded64514dd5988f52fe8b9b48130174f1096b3532ffe6_JC.exe

  • Size

    281KB

  • MD5

    7365c3c591a4912ecfffedcb637c99a2

  • SHA1

    448f8fbeba108219537304930361e6e965b75c38

  • SHA256

    42e4b6f6bc72a439b91ded64514dd5988f52fe8b9b48130174f1096b3532ffe6

  • SHA512

    ce055c375befeb98787c5b144943c19e911a8442f63dd3134da83d417cdc9ac0b536b4682ff15c3df96e2b82a91bf68cc95968be51271c0c7ddb07c34350dcf0

  • SSDEEP

    3072:EaVDdi97XLsbWTrC6Y6ilYiORtRESjoFS1J1jfRvh4d0FKQy9fH:3q773q6YXl6zKAJ1jBhnKQy1

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 7 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.42e4b6f6bc72a439b91ded64514dd5988f52fe8b9b48130174f1096b3532ffe6_JC.exe
    "C:\Users\Admin\AppData\Local\Temp\NEAS.42e4b6f6bc72a439b91ded64514dd5988f52fe8b9b48130174f1096b3532ffe6_JC.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1672
    • C:\Users\Admin\AppData\Local\Temp\NEAS.42e4b6f6bc72a439b91ded64514dd5988f52fe8b9b48130174f1096b3532ffe6_JC.exe
      "C:\Users\Admin\AppData\Local\Temp\NEAS.42e4b6f6bc72a439b91ded64514dd5988f52fe8b9b48130174f1096b3532ffe6_JC.exe"
      2⤵
      • Checks SCSI registry key(s)
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      PID:2892

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/1400-8-0x0000000002A30000-0x0000000002A46000-memory.dmp

    Filesize

    88KB

  • memory/1672-1-0x0000000000240000-0x0000000000249000-memory.dmp

    Filesize

    36KB

  • memory/1672-0-0x0000000000220000-0x0000000000235000-memory.dmp

    Filesize

    84KB

  • memory/1672-5-0x0000000000220000-0x0000000000235000-memory.dmp

    Filesize

    84KB

  • memory/2892-2-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2892-4-0x0000000000400000-0x0000000000409000-memory.dmp

    Filesize

    36KB

  • memory/2892-6-0x0000000000400000-0x0000000000409000-memory.dmp

    Filesize

    36KB

  • memory/2892-7-0x0000000000400000-0x0000000000409000-memory.dmp

    Filesize

    36KB

  • memory/2892-9-0x0000000000400000-0x0000000000409000-memory.dmp

    Filesize

    36KB