Analysis

  • max time kernel
    118s
  • max time network
    128s
  • platform
    windows7_x64
  • resource
    win7-en-20211208
  • submitted
    27-12-2021 05:00

General

  • Target

    tmp/2587ea00-8b51-4ab2-82a4-1f5bda74ea65_Ego2.exe

  • Size

    172KB

  • MD5

    d5438415ed71322922b70ac85ad02f64

  • SHA1

    832cfa96f5ff034db65707f6781752441beaf0aa

  • SHA256

    3d7e2744ac50ae3ff7fcdbf97b4f70af8236ade6c3d2e82004f0641be304f83b

  • SHA512

    7f12be61ddb39cd357f817cf1c47110128ae2d962e9c1fcb947f8f7ed6084db5a3607f3edda06680e3d078c50a754859511cb69c0adac01360b51cee54925b6c

Malware Config

Signatures

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

    XpertRAT is a remote access trojan with various capabilities.

  • Adds policy Run key to start application 2 TTPs 2 IoCs
  • Windows security modification 2 TTPs 1 IoCs
  • Accesses Microsoft Outlook accounts 1 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 7 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs
  • System policy modification 1 TTPs 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\tmp\2587ea00-8b51-4ab2-82a4-1f5bda74ea65_Ego2.exe
    "C:\Users\Admin\AppData\Local\Temp\tmp\2587ea00-8b51-4ab2-82a4-1f5bda74ea65_Ego2.exe"
    1⤵
    • 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:968
    • C:\Program Files (x86)\Internet Explorer\iexplore.exe
      C:\Users\Admin\AppData\Local\Temp\tmp\2587ea00-8b51-4ab2-82a4-1f5bda74ea65_Ego2.exe
      2⤵
      • Adds policy Run key to start application
      • Adds Run key to start application
      • Suspicious use of SetThreadContext
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:1664
      • C:\Program Files (x86)\Internet Explorer\iexplore.exe
        /stext "C:\Users\Admin\AppData\Roaming\N3S8L5W2-L0D7-N6R5-I1X3-I7P6I3R8E6E5\eycrndwkn0.txt"
        3⤵
          PID:1724
        • C:\Program Files (x86)\Internet Explorer\iexplore.exe
          /stext "C:\Users\Admin\AppData\Roaming\N3S8L5W2-L0D7-N6R5-I1X3-I7P6I3R8E6E5\eycrndwkn0.txt"
          3⤵
          • Suspicious use of AdjustPrivilegeToken
          PID:832
        • C:\Program Files (x86)\Internet Explorer\iexplore.exe
          /stext "C:\Users\Admin\AppData\Roaming\N3S8L5W2-L0D7-N6R5-I1X3-I7P6I3R8E6E5\eycrndwkn1.txt"
          3⤵
          • Accesses Microsoft Outlook accounts
          PID:484
        • C:\Program Files (x86)\Internet Explorer\iexplore.exe
          /stext "C:\Users\Admin\AppData\Roaming\N3S8L5W2-L0D7-N6R5-I1X3-I7P6I3R8E6E5\eycrndwkn2.txt"
          3⤵
            PID:280
          • C:\Program Files (x86)\Internet Explorer\iexplore.exe
            /stext "C:\Users\Admin\AppData\Roaming\N3S8L5W2-L0D7-N6R5-I1X3-I7P6I3R8E6E5\eycrndwkn3.txt"
            3⤵
              PID:1964
            • C:\Program Files (x86)\Internet Explorer\iexplore.exe
              /stext "C:\Users\Admin\AppData\Roaming\N3S8L5W2-L0D7-N6R5-I1X3-I7P6I3R8E6E5\eycrndwkn4.txt"
              3⤵
                PID:432

          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

          Collection

          Email Collection

          1
          T1114

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Users\Admin\AppData\Roaming\N3S8L5W2-L0D7-N6R5-I1X3-I7P6I3R8E6E5\eycrndwkn2.txt
            MD5

            f3b25701fe362ec84616a93a45ce9998

            SHA1

            d62636d8caec13f04e28442a0a6fa1afeb024bbb

            SHA256

            b3d510ef04275ca8e698e5b3cbb0ece3949ef9252f0cdc839e9ee347409a2209

            SHA512

            98c5f56f3de340690c139e58eb7dac111979f0d4dffe9c4b24ff849510f4b6ffa9fd608c0a3de9ac3c9fd2190f0efaf715309061490f9755a9bfdf1c54ca0d84

          • C:\Users\Admin\AppData\Roaming\N3S8L5W2-L0D7-N6R5-I1X3-I7P6I3R8E6E5\eycrndwkn4.txt
            MD5

            f3b25701fe362ec84616a93a45ce9998

            SHA1

            d62636d8caec13f04e28442a0a6fa1afeb024bbb

            SHA256

            b3d510ef04275ca8e698e5b3cbb0ece3949ef9252f0cdc839e9ee347409a2209

            SHA512

            98c5f56f3de340690c139e58eb7dac111979f0d4dffe9c4b24ff849510f4b6ffa9fd608c0a3de9ac3c9fd2190f0efaf715309061490f9755a9bfdf1c54ca0d84

          • memory/280-61-0x0000000000442F04-mapping.dmp
          • memory/432-64-0x000000000040C2A8-mapping.dmp
          • memory/484-60-0x0000000000411654-mapping.dmp
          • memory/832-59-0x0000000000423BC0-mapping.dmp
          • memory/968-54-0x0000000075B51000-0x0000000075B53000-memory.dmp
            Filesize

            8KB

          • memory/1664-57-0x0000000000401364-mapping.dmp
          • memory/1724-58-0x0000000000423BC0-mapping.dmp
          • memory/1964-63-0x0000000000413750-mapping.dmp