Analysis

  • max time kernel
    147s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    27-06-2024 20:28

General

  • Target

    a8b1650fa5f73eaaccf9a3406c9c9d9a024e2c8ebae1d63d97dfb5da9466e333.exe

  • Size

    3.6MB

  • MD5

    c6d93d22769ff79b5bce433c959cceb5

  • SHA1

    cbf8a4e2d5cc261dde9e6c639346f590c7139e87

  • SHA256

    a8b1650fa5f73eaaccf9a3406c9c9d9a024e2c8ebae1d63d97dfb5da9466e333

  • SHA512

    5fbbce3989bf5b22a1027cc4844766b09c633892dd5c02f9d084b204cc48e6226457c19685199b5bcefb678ce41428674d2fba3ae3392fcb5fc39441974069c0

  • SSDEEP

    49152:o08shxtUg9OUi82w6aQp9dgS1GUL38XhCOYc3iJXe9emEPGKfPkQThMYRMnm7LBX:o08ddsGaQNgS1C6eVngKpq

Malware Config

Extracted

Family

metasploit

Version

windows/shell_reverse_tcp

C2

192.168.1.175:2523

212.154.6.128:2523

Signatures

  • MetaSploit

    Detected malicious payload which is part of the Metasploit Framework, likely generated with msfvenom or similar.

  • 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\a8b1650fa5f73eaaccf9a3406c9c9d9a024e2c8ebae1d63d97dfb5da9466e333.exe
    "C:\Users\Admin\AppData\Local\Temp\a8b1650fa5f73eaaccf9a3406c9c9d9a024e2c8ebae1d63d97dfb5da9466e333.exe"
    1⤵
    • Loads dropped DLL
    • Enumerates connected drives
    • Writes to the Master Boot Record (MBR)
    • Suspicious behavior: EnumeratesProcesses
    PID:4232

Network

MITRE ATT&CK Matrix ATT&CK v13

Persistence

Pre-OS Boot

1
T1542

Bootkit

1
T1542.003

Defense Evasion

Pre-OS Boot

1
T1542

Bootkit

1
T1542.003

Discovery

Query Registry

1
T1012

Peripheral Device Discovery

1
T1120

System Information Discovery

1
T1082

Replay Monitor

Loading Replay Monitor...

Downloads

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

    74KB

    MD5

    2814acbd607ba47bdbcdf6ac3076ee95

    SHA1

    50ab892071bed2bb2365ca1d4bf5594e71c6b13b

    SHA256

    5904a7e4d97eeac939662c3638a0e145f64ff3dd0198f895c4bf0337595c6a67

    SHA512

    34c73014ffc8d38d6dd29f4f84c8f4f9ea971bc131f665f65b277f453504d5efc2d483a792cdea610c5e0544bf3997b132dcdbe37224912c5234c15cdb89d498

  • memory/4232-1-0x0000000000800000-0x0000000000801000-memory.dmp
    Filesize

    4KB

  • memory/4232-0-0x0000000000800000-0x0000000000801000-memory.dmp
    Filesize

    4KB

  • memory/4232-3-0x00000000009C0000-0x00000000009C1000-memory.dmp
    Filesize

    4KB

  • memory/4232-2-0x00000000009C0000-0x00000000009C1000-memory.dmp
    Filesize

    4KB