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Analysis

  • max time kernel
    94s
  • max time network
    145s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    22/12/2024, 08:34

General

  • Target

    extracted_at_0x0.exe

  • Size

    474KB

  • MD5

    cbd03b0128ec974c983c0604d4319536

  • SHA1

    19bd4374de4f58df2a303a68a22df8ffd23a51b8

  • SHA256

    0d49d91ede6737be9e75bac99701a344b3a8a32acaf95e452a8888521481e15d

  • SHA512

    ee4970768b92c24adae33c1b0c3cf9e4957d3c6d52c1915caa95cb4fca5e566965d024bf4856ed90c531b5550ba49d2d91eea87eca45e7cb0f6dbb9e2ddb3914

  • SSDEEP

    6144:ZtXZXzWCOd3DgW86qeVRvnx051WPKOV1mDVa1rqWvzN1R4Uz4JSvkxYTpPnc/vfh:ZtZ4z60DxK1WSEUa1rJ1+c44JnW9f

Malware Config

Signatures

  • Guloader family
  • Guloader,Cloudeye

    A shellcode based downloader first seen in 2020.

  • Loads dropped DLL 1 IoCs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Drops file in Program Files directory 1 IoCs
  • Drops file in Windows directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

Processes

  • C:\Users\Admin\AppData\Local\Temp\extracted_at_0x0.exe
    "C:\Users\Admin\AppData\Local\Temp\extracted_at_0x0.exe"
    1⤵
    • Loads dropped DLL
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    PID:3296

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\nsxCBED.tmp\System.dll

    Filesize

    11KB

    MD5

    7399323923e3946fe9140132ac388132

    SHA1

    728257d06c452449b1241769b459f091aabcffc5

    SHA256

    5a1c20a3e2e2eb182976977669f2c5d9f3104477e98f74d69d2434e79b92fdc3

    SHA512

    d6f28ba761351f374ae007c780be27758aea7b9f998e2a88a542eede459d18700adffe71abcb52b8a8c00695efb7ccc280175b5eeb57ca9a645542edfabb64f1

  • memory/3296-11-0x00000000051C0000-0x00000000052D7000-memory.dmp

    Filesize

    1.1MB

  • memory/3296-12-0x00000000051C0000-0x00000000052D7000-memory.dmp

    Filesize

    1.1MB