Analysis

  • max time kernel
    147s
  • max time network
    155s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    21-05-2022 11:23

General

  • Target

    EDG9532020061711000056_32859_pdf.exe

  • Size

    317KB

  • MD5

    2778a85862dc9ac764541a0c34dce584

  • SHA1

    123bb7ddd48aca7c531ba892146157708754f463

  • SHA256

    9464eba54dd22af19c810637f246d9f6239a74f38ace5efddfbe8e37c5c64768

  • SHA512

    8a09bb6b83ea66d3e0e3f3166acc2276413e4b0fce84c024754e73a5d915fe1a577523c63cbd9cad325d0a6809156d0aa9f0be003bd0f5af03487e85f2c75f4d

Malware Config

Signatures

  • UAC bypass 3 TTPs
  • Windows security bypass 2 TTPs
  • XpertRAT

    XpertRAT is a remote access trojan with various capabilities.

  • ReZer0 packer 1 IoCs

    Detects ReZer0, a packer with multiple versions used in various campaigns.

  • Adds policy Run key to start application 2 TTPs 2 IoCs
  • Windows security modification 2 TTPs 1 IoCs
  • Adds Run key to start application 2 TTPs 4 IoCs
  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 29 IoCs
  • System policy modification 1 TTPs 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\EDG9532020061711000056_32859_pdf.exe
    "C:\Users\Admin\AppData\Local\Temp\EDG9532020061711000056_32859_pdf.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1684
    • C:\Users\Admin\AppData\Local\Temp\EDG9532020061711000056_32859_pdf.exe
      "{path}"
      2⤵
        PID:1564
      • C:\Users\Admin\AppData\Local\Temp\EDG9532020061711000056_32859_pdf.exe
        "{path}"
        2⤵
          PID:1560
        • C:\Users\Admin\AppData\Local\Temp\EDG9532020061711000056_32859_pdf.exe
          "{path}"
          2⤵
            PID:1748
          • C:\Users\Admin\AppData\Local\Temp\EDG9532020061711000056_32859_pdf.exe
            "{path}"
            2⤵
            • Windows security modification
            • Checks whether UAC is enabled
            • Suspicious use of SetThreadContext
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of SetWindowsHookEx
            • Suspicious use of WriteProcessMemory
            • System policy modification
            PID:1188
            • C:\Program Files (x86)\Internet Explorer\iexplore.exe
              C:\Users\Admin\AppData\Local\Temp\EDG9532020061711000056_32859_pdf.exe
              3⤵
              • Adds policy Run key to start application
              • Adds Run key to start application
              • Suspicious use of AdjustPrivilegeToken
              • Suspicious use of SetWindowsHookEx
              PID:1724

        Network

        MITRE ATT&CK Matrix ATT&CK v6

        Persistence

        Registry Run Keys / Startup Folder

        2
        T1060

        Privilege Escalation

        Bypass User Account Control

        1
        T1088

        Defense Evasion

        Bypass User Account Control

        1
        T1088

        Disabling Security Tools

        3
        T1089

        Modify Registry

        6
        T1112

        Discovery

        System Information Discovery

        1
        T1082

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • memory/1188-57-0x0000000000400000-0x000000000042C000-memory.dmp
          Filesize

          176KB

        • memory/1188-60-0x0000000000400000-0x000000000042C000-memory.dmp
          Filesize

          176KB

        • memory/1188-58-0x0000000000400000-0x000000000042C000-memory.dmp
          Filesize

          176KB

        • memory/1188-62-0x0000000000400000-0x000000000042C000-memory.dmp
          Filesize

          176KB

        • memory/1188-63-0x00000000004010B8-mapping.dmp
        • memory/1188-68-0x0000000000400000-0x000000000042C000-memory.dmp
          Filesize

          176KB

        • memory/1684-54-0x0000000000090000-0x00000000000E6000-memory.dmp
          Filesize

          344KB

        • memory/1684-55-0x0000000000210000-0x0000000000226000-memory.dmp
          Filesize

          88KB

        • memory/1684-56-0x00000000022B0000-0x00000000022E8000-memory.dmp
          Filesize

          224KB