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Analysis

  • max time kernel
    139s
  • max time network
    147s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230915-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230915-enlocale:en-usos:windows10-2004-x64system
  • submitted
    12/10/2023, 17:04

General

  • Target

    91fc7e6f543d75eb029777355435f14e939c5824bd70afc9de64db7dbc744265.exe

  • Size

    3.8MB

  • MD5

    f74481a5086b025992285b39d176ba86

  • SHA1

    bdbc38e48f7441ad6355c9b92044175e6b4c0d63

  • SHA256

    91fc7e6f543d75eb029777355435f14e939c5824bd70afc9de64db7dbc744265

  • SHA512

    cfda1c64ff8280f967e68373e6af3c61cc4267d5ee39a2588df3511950d93c7af4aba641e4f5aec627f741d429451b642b8706335a98ac4f014b1aaf688c0dfa

  • SSDEEP

    98304:UmXe6ygXLTjUy7nuaHr3dWa31XRbM5ZBYojqWk:UmuM3j17JhsvjqP

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\91fc7e6f543d75eb029777355435f14e939c5824bd70afc9de64db7dbc744265.exe
    "C:\Users\Admin\AppData\Local\Temp\91fc7e6f543d75eb029777355435f14e939c5824bd70afc9de64db7dbc744265.exe"
    1⤵
    • Loads dropped DLL
    • Enumerates connected drives
    • Writes to the Master Boot Record (MBR)
    • Suspicious behavior: EnumeratesProcesses
    PID:680

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