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Analysis

  • max time kernel
    106s
  • max time network
    122s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    18/01/2024, 02:31

General

  • Target

    f50d969eb2303835ed661ce08d4b58dcf40b92304b572c1f959b03b79dfa3585.exe

  • Size

    3.8MB

  • MD5

    594d1c8328de987dbea5f2354ff8bd9c

  • SHA1

    96040a91ddb18e82cdf85ba2da6dff61b033fce8

  • SHA256

    f50d969eb2303835ed661ce08d4b58dcf40b92304b572c1f959b03b79dfa3585

  • SHA512

    b84f2d06dc7028c945d30013b908dd054021d85b59836e01674118dfdbc5fe47824c383791d5e0801060e8839d53be1b92b6235af1e9d4b450a9c2bf42f01b1c

  • SSDEEP

    49152:v7Idf70vsomJNLUhLaV+fYmKMuSGOp09B/pwJrN6GFVfoPpNf9CXOnMh61RpvPNb:DIdfiKLegiKBVPG5o28N15nMApRT

Malware Config

Signatures

  • Loads dropped DLL 2 IoCs
  • Checks installed software on the system 1 TTPs

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

  • Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs

    Bootkits write to the MBR to gain persistence at a level below the operating system.

  • Modifies system certificate store 2 TTPs 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\f50d969eb2303835ed661ce08d4b58dcf40b92304b572c1f959b03b79dfa3585.exe
    "C:\Users\Admin\AppData\Local\Temp\f50d969eb2303835ed661ce08d4b58dcf40b92304b572c1f959b03b79dfa3585.exe"
    1⤵
    • Loads dropped DLL
    • Writes to the Master Boot Record (MBR)
    • Modifies system certificate store
    PID:1684

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\{A981AA9F-295D-4099-8B0C-35F3604A90E7}.tmp\7z.dll

    Filesize

    1.1MB

    MD5

    2706693dda10c6cc79eed24c56d4e5ef

    SHA1

    4f34ef1bd49273a0d260b9dab15c73eb0ccb6383

    SHA256

    0edad8a1af22d5b97c1f324791c86243a6ecce7b5a9d2f30415af99aba9129c3

    SHA512

    7e7f7ae894528587ba33b6e10999549bb9a2ec2748b5662fa1b8806e5f4ce33af47507b3ef2954f2747a76b5b7c775c1cd671061f577c5016d1f8ba165bbe21c

  • C:\Users\Admin\AppData\Local\Temp\{D057F506-C423-4d48-956F-8DBD146FFACB}.tmp\NetBridge.dll

    Filesize

    238KB

    MD5

    8786d469338c30e0ba9fedfc62bd5197

    SHA1

    5fb12028ceae9772f938e1b98b699f0e02e32718

    SHA256

    beeaf8b72f7008e9adabacfcd85e32a50747a0dfb5c86802aeb973bd1f5c3d2f

    SHA512

    5db1e5b78e62cda81a63e8e712e720f87a7c7a539237a55a9098c076f9fb4e0b5adb83383c23657b4ccc90c117e55e3946a399cdf3d15cb94444b203d9d6c45c