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Analysis

  • max time kernel
    151s
  • max time network
    143s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230621-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230621-enlocale:en-usos:windows10-2004-x64system
  • submitted
    30/06/2023, 13:49

General

  • Target

    9b2f39946dec7dba6fccfeb27.exe

  • Size

    271KB

  • MD5

    4fb9b9fb08e3b255a76ea132cc2f987c

  • SHA1

    bc922858a1382117e5a2783cfad831a9a982aab7

  • SHA256

    9b2f39946dec7dba6fccfeb27c618cf4835dc3de05f21a7729be30f1f04187be

  • SHA512

    c6b3c77f240e2b2565a0683257aff9a42c9ff8a3626f414c02c59b54fcb0213a37e2ca54d04640fb6dee2372aef802ef2dc41b2c1e1cf85427bf675ceef7a9fd

  • SSDEEP

    3072:67hT3GL50Kv1ESjx+0m8Z9LV7l3E4Xz6dNshFlrvzyXqvD+E4PjRe/861:mT2kSjx+0mufl3E4rhFlrvoqr9oe

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 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\9b2f39946dec7dba6fccfeb27.exe
    "C:\Users\Admin\AppData\Local\Temp\9b2f39946dec7dba6fccfeb27.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1512
    • C:\Users\Admin\AppData\Local\Temp\9b2f39946dec7dba6fccfeb27.exe
      "C:\Users\Admin\AppData\Local\Temp\9b2f39946dec7dba6fccfeb27.exe"
      2⤵
      • Checks SCSI registry key(s)
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      PID:3056

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/1512-134-0x0000000001CE0000-0x0000000001CE9000-memory.dmp

    Filesize

    36KB

  • memory/2588-137-0x00000000029E0000-0x00000000029F6000-memory.dmp

    Filesize

    88KB

  • memory/3056-135-0x0000000000400000-0x0000000000409000-memory.dmp

    Filesize

    36KB

  • memory/3056-136-0x0000000000400000-0x0000000000409000-memory.dmp

    Filesize

    36KB

  • memory/3056-138-0x0000000000400000-0x0000000000409000-memory.dmp

    Filesize

    36KB