Analysis

  • max time kernel
    145s
  • max time network
    142s
  • platform
    windows7_x64
  • resource
    win7-20230831-en
  • resource tags

    arch:x64arch:x86image:win7-20230831-enlocale:en-usos:windows7-x64system
  • submitted
    04/10/2023, 17:27

General

  • Target

    08617ac03620863f2105bbb16f26c851a360b2c277c77b80bba81356ad5b9900_JC.exe

  • Size

    854KB

  • MD5

    d3080230a8fc031889ac6d348f253939

  • SHA1

    598eafa6344fd82cc08639be6aee6d994ac17874

  • SHA256

    08617ac03620863f2105bbb16f26c851a360b2c277c77b80bba81356ad5b9900

  • SHA512

    b5b28601f22e7442803ed23b2b08f32cf1a101e033ed40ec030cf2107510d9354a0b108b9aa9c1e2cc199b5058d6c55bfe52b7fcb609352964113a359c86e617

  • SSDEEP

    24576:INPx3TplFLuxjuUTvP8z6uc1L9J8xVCT5ATqY2BXY6+g7:mBTTFatbP8z6VL9J8xVCT5AT2Y6N

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
  • Legitimate hosting services abused for malware hosting/C2 1 TTPs
  • Suspicious use of NtCreateThreadExHideFromDebugger 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: EnumeratesProcesses 1 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\08617ac03620863f2105bbb16f26c851a360b2c277c77b80bba81356ad5b9900_JC.exe
    "C:\Users\Admin\AppData\Local\Temp\08617ac03620863f2105bbb16f26c851a360b2c277c77b80bba81356ad5b9900_JC.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:2392
    • C:\Users\Admin\AppData\Local\Temp\08617ac03620863f2105bbb16f26c851a360b2c277c77b80bba81356ad5b9900_JC.exe
      "C:\Users\Admin\AppData\Local\Temp\08617ac03620863f2105bbb16f26c851a360b2c277c77b80bba81356ad5b9900_JC.exe"
      2⤵
      • Checks QEMU agent file
      • Suspicious use of NtCreateThreadExHideFromDebugger
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • Suspicious behavior: EnumeratesProcesses
      PID:2596

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • \Users\Admin\AppData\Local\Temp\nso6D45.tmp\System.dll

    Filesize

    12KB

    MD5

    dd87a973e01c5d9f8e0fcc81a0af7c7a

    SHA1

    c9206ced48d1e5bc648b1d0f54cccc18bf643a14

    SHA256

    7fb0f8d452fefaac789986b933df050f3d3e4feb8a8d9944ada995f572dcdca1

    SHA512

    4910b39b1a99622ac8b3c42f173bbe7035ac2f8d40c946468e7db7e2868a2da81ea94da453857f06f39957dd690c7f1ba498936a7aaa0039975e472376f92e8f

  • memory/2392-15-0x0000000077B10000-0x0000000077CB9000-memory.dmp

    Filesize

    1.7MB

  • memory/2392-16-0x0000000077D00000-0x0000000077DD6000-memory.dmp

    Filesize

    856KB

  • memory/2392-17-0x00000000751E0000-0x00000000751E7000-memory.dmp

    Filesize

    28KB

  • memory/2596-18-0x0000000000400000-0x0000000001462000-memory.dmp

    Filesize

    16.4MB

  • memory/2596-19-0x0000000000400000-0x0000000001462000-memory.dmp

    Filesize

    16.4MB

  • memory/2596-20-0x0000000077B10000-0x0000000077CB9000-memory.dmp

    Filesize

    1.7MB

  • memory/2596-21-0x0000000000400000-0x0000000001462000-memory.dmp

    Filesize

    16.4MB

  • memory/2596-44-0x0000000000400000-0x0000000001462000-memory.dmp

    Filesize

    16.4MB

  • memory/2596-45-0x0000000001470000-0x0000000006842000-memory.dmp

    Filesize

    83.8MB

  • memory/2596-46-0x0000000000400000-0x0000000001462000-memory.dmp

    Filesize

    16.4MB

  • memory/2596-47-0x0000000000400000-0x0000000001462000-memory.dmp

    Filesize

    16.4MB

  • memory/2596-48-0x0000000036BF0000-0x0000000036EF3000-memory.dmp

    Filesize

    3.0MB

  • memory/2596-49-0x0000000001470000-0x0000000006842000-memory.dmp

    Filesize

    83.8MB