Overview

overview

9

Static

static

a85b341635...67.exe

windows7_x64

8

a85b341635...67.exe

windows10_x64

9

Analysis

  • max time kernel
    150s
  • max time network
    9s
  • platform
    windows7_x64
  • resource
    win7v20201028
  • submitted
    17/11/2020, 14:00

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General

  • Target
    a85b341635c65c3c54abae7bc1005c67.exe
  • Size 208KB
  • Sample201117-775m6lshc6
  • SHA256 0c5f5359cc0e057e46205acd94e818b293d8ccd1211b86c07b4bbcd68fa8a1dd
  • MD5 SHA1 SHA512
Score
8/10
persistence

Malware Config

Signatures

  • Executes dropped EXE 3 IoCs
  • Drops startup file 8 IoCs
  • Loads dropped DLL 22 IoCs
  • Adds Run key to start application 2 TTPs 8 IoCs
    persistence
  • Drops file in System32 directory 6 IoCs
  • Drops file in Windows directory 3 IoCs
  • Program crash 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 1097 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of SetWindowsHookEx 8 IoCs
  • Suspicious use of WriteProcessMemory 36 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a85b341635c65c3c54abae7bc1005c67.exe
    "C:\Users\Admin\AppData\Local\Temp\a85b341635c65c3c54abae7bc1005c67.exe"
    1⤵
    • Drops startup file
    • Adds Run key to start application
    • Drops file in System32 directory
    • Drops file in Windows directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1892
    • C:\Windows\SysWOW64\cmd.exe
      cmd /c ""C:\windows\NXYA.exe.bat" "
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1200
      • C:\windows\NXYA.exe
        C:\windows\NXYA.exe
        3⤵
        • Executes dropped EXE
        • Drops startup file
        • Adds Run key to start application
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of SetWindowsHookEx
        PID:1244
    • C:\Windows\SysWOW64\cmd.exe
      cmd /c ""C:\windows\system32\CBG.exe.bat" "
      2⤵
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:1536
      • C:\windows\SysWOW64\CBG.exe
        C:\windows\system32\CBG.exe
        3⤵
        • Executes dropped EXE
        • Drops startup file
        • Adds Run key to start application
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:1808
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1808 -s 256
          4⤵
          • Loads dropped DLL
          • Program crash
          • Suspicious use of AdjustPrivilegeToken
          PID:756
    • C:\Windows\SysWOW64\cmd.exe
      cmd /c ""C:\windows\system32\CMDSZH.exe.bat" "
      2⤵
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:1632
      • C:\windows\SysWOW64\CMDSZH.exe
        C:\windows\system32\CMDSZH.exe
        3⤵
        • Executes dropped EXE
        • Drops startup file
        • Adds Run key to start application
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:884
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 884 -s 256
          4⤵
          • Loads dropped DLL
          • Program crash
          • Suspicious use of AdjustPrivilegeToken
          PID:1612
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1892 -s 312
      2⤵
      • Program crash
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of AdjustPrivilegeToken
      PID:1548

Network

        MITRE ATT&CK Enterprise v6

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        Downloads

        memory/756-26-0x00000000009D0000-0x00000000009E1000-memory.dmp
        Download

        memory/756-36-0x0000000002510000-0x0000000002521000-memory.dmp
        Download

        memory/1548-23-0x0000000000A50000-0x0000000000A61000-memory.dmp
        Download

        memory/1548-24-0x00000000027D0000-0x00000000027E1000-memory.dmp
        Download

        memory/1612-39-0x00000000009A0000-0x00000000009B1000-memory.dmp
        Download

        memory/1612-49-0x0000000002510000-0x0000000002521000-memory.dmp
        Download