Overview

overview

8

Static

static

99811103.png.exe

windows7_x64

8

99811103.png.exe

windows10_x64

1

Analysis

  • max time kernel
    151s
  • max time network
    22s
  • platform
    windows7_x64
  • resource
    win7v200430
  • submitted
    21/07/2020, 07:13

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General

  • Target
    99811103.png.exe
  • Size 691KB
  • Sample200721-2rerfvlpwn
  • SHA256 545e7d34943eb13bd1f648178d6a19fc0cab40faf00e15a8273e3617d2a1f1f2
  • MD5 SHA1 SHA512
Score
8/10
persistence

Malware Config

Signatures

  • Loads dropped DLL 2 IoCs
  • Executes dropped EXE 2 IoCs
  • Suspicious use of SetThreadContext 3 IoCs
  • Suspicious behavior: MapViewOfSection 5 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
    persistence
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious behavior: EnumeratesProcesses 16 IoCs
  • Suspicious use of WriteProcessMemory 27 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1304
    • C:\Users\Admin\AppData\Local\Temp\99811103.png.exe
      "C:\Users\Admin\AppData\Local\Temp\99811103.png.exe"
      2⤵
      • Loads dropped DLL
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:376
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /c REG ADD HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run /f /v chrom /t REG_SZ /d C:\Windows\system32\pcalua.exe" -a C:\Users\Admin\chrom.exe"
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:1788
        • C:\Windows\SysWOW64\reg.exe
          REG ADD HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run /f /v chrom /t REG_SZ /d C:\Windows\system32\pcalua.exe" -a C:\Users\Admin\chrom.exe"
          4⤵
          • Adds Run key to start application
          PID:1808
      • C:\Users\Admin\chrom.exe
        "C:\Users\Admin\chrom.exe"
        3⤵
        • Loads dropped DLL
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of WriteProcessMemory
        PID:756
        • C:\Users\Admin\AppData\Local\Temp\AddInProcess32.exe
          "C:\Users\Admin\AppData\Local\Temp\AddInProcess32.exe"
          4⤵
          • Executes dropped EXE
          • Suspicious use of SetThreadContext
          • Suspicious behavior: MapViewOfSection
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious behavior: EnumeratesProcesses
          PID:1584
    • C:\Windows\SysWOW64\NAPSTAT.EXE
      "C:\Windows\SysWOW64\NAPSTAT.EXE"
      2⤵
      • Suspicious use of SetThreadContext
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:1560
      • C:\Windows\SysWOW64\cmd.exe
        /c del "C:\Users\Admin\AppData\Local\Temp\AddInProcess32.exe"
        3⤵
          PID:1980

    Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

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          Downloads

          memory/1560-18-0x0000000000E70000-0x0000000000EB6000-memory.dmp
          Download

          memory/1560-20-0x0000000003190000-0x00000000032CD000-memory.dmp
          Download

          memory/1584-14-0x0000000000400000-0x0000000000427000-memory.dmp
          Download