Analysis

  • max time kernel
    76s
  • max time network
    147s
  • platform
    windows7_x64
  • resource
    win7-en-20210920
  • submitted
    22-09-2021 20:59

General

  • Target

    ????????????MV.cmd.exe

  • Size

    2.0MB

  • MD5

    0889ac4ebfcc906fa3dc17f3a97862da

  • SHA1

    dcf4239b4535a3bc4a2a83fadab113984421d086

  • SHA256

    07ebb19e273995bef00aa19ad538b5cacb5eb0527288c3f5a31be66bfc1d9bb9

  • SHA512

    419d4c89cd9607e2140b0f1eb49c47ed2a0998d40777914bf5b443e5c6906da875407f769b286da390b36f19fcdd9411dd0b6583e3513d1460d3e11533e45bf3

Malware Config

Signatures

  • Generic Chinese Botnet

    A botnet originating from China which is currently unnamed publicly.

  • Chinese Botnet Payload 1 IoCs
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 7 IoCs
  • Enumerates connected drives 3 TTPs 23 IoCs

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

  • Drops file in Program Files directory 2 IoCs
  • Checks processor information in registry 2 TTPs 2 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious behavior: RenamesItself 1 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 7 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\____________MV.cmd.exe
    "C:\Users\Admin\AppData\Local\Temp\____________MV.cmd.exe"
    1⤵
    • Enumerates connected drives
    • Drops file in Program Files directory
    • Checks processor information in registry
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: RenamesItself
    • Suspicious use of SetWindowsHookEx
    PID:1364
  • C:\Program Files (x86)\Dyydhdv.exe
    "C:\Program Files (x86)\Dyydhdv.exe"
    1⤵
    • Executes dropped EXE
    • Loads dropped DLL
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1356
    • C:\Program Files (x86)\Dyydhdv.exe
      "C:\Program Files (x86)\Dyydhdv.exe" Win7
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of SetWindowsHookEx
      PID:964

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/1364-54-0x0000000010000000-0x0000000010018000-memory.dmp

    Filesize

    96KB

  • memory/1364-53-0x0000000075651000-0x0000000075653000-memory.dmp

    Filesize

    8KB