Analysis

  • max time kernel
    151s
  • max time network
    154s
  • platform
    windows7_x64
  • resource
    win7-20230831-en
  • resource tags

    arch:x64arch:x86image:win7-20230831-enlocale:en-usos:windows7-x64system
  • submitted
    13-10-2023 04:17

General

  • Target

    55e92f7ce36eead273b0f804c56c6a5f2b3f88e8e9b9c2f6a89ef4149f7d5158.exe

  • Size

    869KB

  • MD5

    4109f03cb97ec1a10b10462b3a1cb072

  • SHA1

    a3d41c3b5eb60607fe3bc2fece01b28cf927357c

  • SHA256

    55e92f7ce36eead273b0f804c56c6a5f2b3f88e8e9b9c2f6a89ef4149f7d5158

  • SHA512

    061051e54d10b8328b1faeecbc3374c5e2974edd1ae9d6f6840a760d9922bdb245210b75beb25401a02b6230732bddcf4df20e8bbaa4df9198e590ea1bdec645

  • SSDEEP

    24576:giSNaEGevQ5lFv30L5PfUiL2yLEYzHkUGhb36/:hSNM5U5z2yLREHtQ

Score
7/10

Malware Config

Signatures

  • Checks QEMU agent file 2 TTPs 2 IoCs

    Checks presence of QEMU agent, possibly to detect virtualization.

  • Loads dropped DLL 1 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\55e92f7ce36eead273b0f804c56c6a5f2b3f88e8e9b9c2f6a89ef4149f7d5158.exe
    "C:\Users\Admin\AppData\Local\Temp\55e92f7ce36eead273b0f804c56c6a5f2b3f88e8e9b9c2f6a89ef4149f7d5158.exe"
    1⤵
    • Checks QEMU agent file
    • Loads dropped DLL
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Suspicious use of SetThreadContext
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of WriteProcessMemory
    PID:2436
    • C:\Users\Admin\AppData\Local\Temp\55e92f7ce36eead273b0f804c56c6a5f2b3f88e8e9b9c2f6a89ef4149f7d5158.exe
      "C:\Users\Admin\AppData\Local\Temp\55e92f7ce36eead273b0f804c56c6a5f2b3f88e8e9b9c2f6a89ef4149f7d5158.exe"
      2⤵
      • Checks QEMU agent file
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      PID:2764

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • \Users\Admin\AppData\Local\Temp\nsd3A72.tmp\System.dll

    Filesize

    11KB

    MD5

    a4dd044bcd94e9b3370ccf095b31f896

    SHA1

    17c78201323ab2095bc53184aa8267c9187d5173

    SHA256

    2e226715419a5882e2e14278940ee8ef0aa648a3ef7af5b3dc252674111962bc

    SHA512

    87335a43b9ca13e1300c7c23e702e87c669e2bcf4f6065f0c684fc53165e9c1f091cc4d79a3eca3910f0518d3b647120ac0be1a68eaade2e75eaa64adfc92c5a

  • memory/2436-10-0x00000000771B0000-0x0000000077359000-memory.dmp

    Filesize

    1.7MB

  • memory/2436-11-0x00000000773A0000-0x0000000077476000-memory.dmp

    Filesize

    856KB

  • memory/2436-12-0x0000000010000000-0x0000000010006000-memory.dmp

    Filesize

    24KB

  • memory/2764-13-0x00000000771B0000-0x0000000077359000-memory.dmp

    Filesize

    1.7MB

  • memory/2764-14-0x0000000072730000-0x0000000073792000-memory.dmp

    Filesize

    16.4MB