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Analysis

  • max time kernel
    150s
  • max time network
    147s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230703-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230703-enlocale:en-usos:windows10-2004-x64system
  • submitted
    14/07/2023, 15:42

General

  • Target

    3d3bb7729e6fe6ca756c891382eda8dd52e3540886dd9ce60a690bde196f242e.exe

  • Size

    164KB

  • MD5

    038c4d29d5ed8479c244641f384c561b

  • SHA1

    d442f261d8485810b967626f9333d752f15f0565

  • SHA256

    3d3bb7729e6fe6ca756c891382eda8dd52e3540886dd9ce60a690bde196f242e

  • SHA512

    9bf446c2c6e255de82b6c2b7ee3142527feda2f7008100db003f1fd46f113e1a2c5a3e381e074159eeff56430c24c919ad9d4df20aa8294868d3eb8f0bec2f2a

  • SSDEEP

    3072:NgkLnDzBmmA7gaN1PMgA9jJkdn1kc/5w3Fm:+kLnDNG7X3g+rk5Vm

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\3d3bb7729e6fe6ca756c891382eda8dd52e3540886dd9ce60a690bde196f242e.exe
    "C:\Users\Admin\AppData\Local\Temp\3d3bb7729e6fe6ca756c891382eda8dd52e3540886dd9ce60a690bde196f242e.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:4624
    • C:\Users\Admin\AppData\Local\Temp\3d3bb7729e6fe6ca756c891382eda8dd52e3540886dd9ce60a690bde196f242e.exe
      "C:\Users\Admin\AppData\Local\Temp\3d3bb7729e6fe6ca756c891382eda8dd52e3540886dd9ce60a690bde196f242e.exe"
      2⤵
      • Checks SCSI registry key(s)
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      PID:1636

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/1636-136-0x0000000000400000-0x0000000000409000-memory.dmp

    Filesize

    36KB

  • memory/1636-137-0x0000000000400000-0x0000000000409000-memory.dmp

    Filesize

    36KB

  • memory/1636-139-0x0000000000400000-0x0000000000409000-memory.dmp

    Filesize

    36KB

  • memory/3128-138-0x0000000002880000-0x0000000002896000-memory.dmp

    Filesize

    88KB

  • memory/4624-134-0x0000000000580000-0x0000000000680000-memory.dmp

    Filesize

    1024KB

  • memory/4624-135-0x00000000006C0000-0x00000000006C9000-memory.dmp

    Filesize

    36KB