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Analysis

  • max time kernel
    139s
  • max time network
    158s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    06/02/2024, 17:36

General

  • Target

    f34bd88cb3d54b94de177ec8b85f83b2d61c36ba25a164f1975d3fe4d6bda069.exe

  • Size

    3.4MB

  • MD5

    8b20f841cb11e4bbc3298e61d403d030

  • SHA1

    91dfd2531d4e43298714082d54d18c79ae109a58

  • SHA256

    f34bd88cb3d54b94de177ec8b85f83b2d61c36ba25a164f1975d3fe4d6bda069

  • SHA512

    07ecbaa62f34c6bce1235e7328c83a6ade161ddb3c04cc55b7fc89b354864a66e4de7938609cc8624d352138f8e881943737e1f53d68d60f49030e2a7c402777

  • SSDEEP

    49152:rEjEamQb2OguN8Dfk5JEG14wv2QwnN4iTapOcaPKfjtD8cEOxeuxzS2hPV5T1gWB:rEjlmQbfgSgwvSnN4iVJuN0xy8Bqd

Score
7/10

Malware Config

Signatures

  • Loads dropped DLL 1 IoCs
  • Enumerates connected drives 3 TTPs 1 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • 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.

  • Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\f34bd88cb3d54b94de177ec8b85f83b2d61c36ba25a164f1975d3fe4d6bda069.exe
    "C:\Users\Admin\AppData\Local\Temp\f34bd88cb3d54b94de177ec8b85f83b2d61c36ba25a164f1975d3fe4d6bda069.exe"
    1⤵
    • Loads dropped DLL
    • Enumerates connected drives
    • Writes to the Master Boot Record (MBR)
    • Suspicious behavior: EnumeratesProcesses
    PID:3612

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Tencent\TxGameAssistant\TGBDownloader\dr.dll

    Filesize

    74KB

    MD5

    2814acbd607ba47bdbcdf6ac3076ee95

    SHA1

    50ab892071bed2bb2365ca1d4bf5594e71c6b13b

    SHA256

    5904a7e4d97eeac939662c3638a0e145f64ff3dd0198f895c4bf0337595c6a67

    SHA512

    34c73014ffc8d38d6dd29f4f84c8f4f9ea971bc131f665f65b277f453504d5efc2d483a792cdea610c5e0544bf3997b132dcdbe37224912c5234c15cdb89d498