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Analysis

  • max time kernel
    301s
  • max time network
    125s
  • platform
    windows7_x64
  • resource
    win7-20231020-en
  • resource tags

    arch:x64arch:x86image:win7-20231020-enlocale:en-usos:windows7-x64system
  • submitted
    03/11/2023, 04:02

General

  • Target

    2fe372b10b4da5eeaf09d22197be5ca8c9115e7a9a031abd60f3615e789fc72c.exe

  • Size

    33KB

  • MD5

    65bfa08856a98a69a16a520b03e8d6a0

  • SHA1

    a50eb214ff01b9a7dcadeb0c7ba6d4bca94fc1ad

  • SHA256

    2fe372b10b4da5eeaf09d22197be5ca8c9115e7a9a031abd60f3615e789fc72c

  • SHA512

    8c2a49b70ec615d9959a646286e4396dc76141b2ee12cb8f77c372b45c8ad0f29ca2c1a81128389c9ac78e3fbb05e215e9eb7150fdc49ed36a1135e1af0876c8

  • SSDEEP

    768:4Oop0VePArh/XRsb0IDBXBmDjJOimTjr9Yo5rm/EmUEfx:siePAV/hXIDepjmTjrNif

Malware Config

Extracted

Family

smokeloader

Version

2022

C2

http://yvzgz.cyou/index.php

https://yvzgz.cyou/index.php

rc4.i32
rc4.i32

Signatures

  • SmokeLoader

    Modular backdoor trojan in use since 2014.

  • Deletes itself 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 AdjustPrivilegeToken 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2fe372b10b4da5eeaf09d22197be5ca8c9115e7a9a031abd60f3615e789fc72c.exe
    "C:\Users\Admin\AppData\Local\Temp\2fe372b10b4da5eeaf09d22197be5ca8c9115e7a9a031abd60f3615e789fc72c.exe"
    1⤵
    • Checks SCSI registry key(s)
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: MapViewOfSection
    PID:2272

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • memory/1260-2-0x0000000002B00000-0x0000000002B16000-memory.dmp

    Filesize

    88KB

  • memory/2272-0-0x0000000000400000-0x000000000040C000-memory.dmp

    Filesize

    48KB

  • memory/2272-1-0x0000000000020000-0x0000000000022000-memory.dmp

    Filesize

    8KB

  • memory/2272-3-0x0000000000400000-0x000000000040C000-memory.dmp

    Filesize

    48KB