Analysis

  • max time kernel
    107s
  • max time network
    153s
  • platform
    windows10_x64
  • resource
    win10-en-20210920
  • submitted
    13-10-2021 15:17

General

  • Target

    259dbea8ad36ca1f502f7eba9257bf7111313f4ef76c34922cd34dd5808b5181.exe

  • Size

    12KB

  • MD5

    04162b1bcb2ebb326fc52801821e42b0

  • SHA1

    2443aac454b8299bdfea13017cc2339d605dacea

  • SHA256

    259dbea8ad36ca1f502f7eba9257bf7111313f4ef76c34922cd34dd5808b5181

  • SHA512

    701f55f4da2fddcf42ee9c0be5539a4f4e617b8a837ed88647295b1f98cf407ae52df19557c8202c303714301c6cccefd0acad49da4c138aa2d140c1d41e6973

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
  • Deletes itself 1 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
  • Program crash 3 IoCs
  • Suspicious use of SetThreadContext 13 IoCs
  • Suspicious behavior: EnumeratesProcesses 25 IoCs
  • Suspicious use of AdjustPrivilegeToken 5 IoCs
  • Suspicious use of SetWindowsHookEx 4 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs
  • System policy modification 1 TTPs 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\259dbea8ad36ca1f502f7eba9257bf7111313f4ef76c34922cd34dd5808b5181.exe
    "C:\Users\Admin\AppData\Local\Temp\259dbea8ad36ca1f502f7eba9257bf7111313f4ef76c34922cd34dd5808b5181.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3708
    • C:\Users\Admin\AppData\Local\Temp\259dbea8ad36ca1f502f7eba9257bf7111313f4ef76c34922cd34dd5808b5181.exe
      C:\Users\Admin\AppData\Local\Temp\259dbea8ad36ca1f502f7eba9257bf7111313f4ef76c34922cd34dd5808b5181.exe
      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:4536
      • C:\Program Files (x86)\Internet Explorer\iexplore.exe
        C:\Users\Admin\AppData\Local\Temp\259dbea8ad36ca1f502f7eba9257bf7111313f4ef76c34922cd34dd5808b5181.exe
        3⤵
          PID:4608
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -u -p 4608 -s 100
            4⤵
            • Program crash
            PID:3140
        • C:\Program Files (x86)\Internet Explorer\iexplore.exe
          C:\Users\Admin\AppData\Local\Temp\259dbea8ad36ca1f502f7eba9257bf7111313f4ef76c34922cd34dd5808b5181.exe
          3⤵
            PID:4208
            • C:\Windows\SysWOW64\WerFault.exe
              C:\Windows\SysWOW64\WerFault.exe -u -p 4208 -s 96
              4⤵
              • Program crash
              PID:512
          • C:\Program Files (x86)\Internet Explorer\iexplore.exe
            C:\Users\Admin\AppData\Local\Temp\259dbea8ad36ca1f502f7eba9257bf7111313f4ef76c34922cd34dd5808b5181.exe
            3⤵
            • 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:596
            • C:\Windows\SysWOW64\notepad.exe
              notepad.exe
              4⤵
              • Deletes itself
              PID:812
            • C:\Program Files (x86)\Internet Explorer\iexplore.exe
              /stext "C:\Users\Admin\AppData\Roaming\L3Q7J4T2-J8A6-L6O4-W4G3-U5J7D0W2W5F0\lpnysiavn0.txt"
              4⤵
              • Suspicious behavior: EnumeratesProcesses
              • Suspicious use of AdjustPrivilegeToken
              PID:3172
            • C:\Program Files (x86)\Internet Explorer\iexplore.exe
              /stext "C:\Users\Admin\AppData\Roaming\L3Q7J4T2-J8A6-L6O4-W4G3-U5J7D0W2W5F0\lpnysiavn1.txt"
              4⤵
              • Accesses Microsoft Outlook accounts
              PID:1548
            • C:\Program Files (x86)\Internet Explorer\iexplore.exe
              /stext "C:\Users\Admin\AppData\Roaming\L3Q7J4T2-J8A6-L6O4-W4G3-U5J7D0W2W5F0\lpnysiavn2.txt"
              4⤵
                PID:1844
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -u -p 1844 -s 92
                  5⤵
                  • Program crash
                  PID:1980
              • C:\Program Files (x86)\Internet Explorer\iexplore.exe
                /stext "C:\Users\Admin\AppData\Roaming\L3Q7J4T2-J8A6-L6O4-W4G3-U5J7D0W2W5F0\lpnysiavn2.txt"
                4⤵
                • Suspicious behavior: EnumeratesProcesses
                PID:2072
              • C:\Program Files (x86)\Internet Explorer\iexplore.exe
                /stext "C:\Users\Admin\AppData\Roaming\L3Q7J4T2-J8A6-L6O4-W4G3-U5J7D0W2W5F0\lpnysiavn3.txt"
                4⤵
                  PID:2784
                • C:\Program Files (x86)\Internet Explorer\iexplore.exe
                  /stext "C:\Users\Admin\AppData\Roaming\L3Q7J4T2-J8A6-L6O4-W4G3-U5J7D0W2W5F0\lpnysiavn4.txt"
                  4⤵
                    PID:2800
                • C:\Program Files (x86)\Internet Explorer\iexplore.exe
                  C:\Users\Admin\AppData\Local\Temp\259dbea8ad36ca1f502f7eba9257bf7111313f4ef76c34922cd34dd5808b5181.exe
                  3⤵
                    PID:660
                  • C:\Program Files (x86)\Internet Explorer\iexplore.exe
                    C:\Users\Admin\AppData\Local\Temp\259dbea8ad36ca1f502f7eba9257bf7111313f4ef76c34922cd34dd5808b5181.exe
                    3⤵
                    • Suspicious use of AdjustPrivilegeToken
                    • Suspicious use of SetWindowsHookEx
                    PID:900
                  • C:\Program Files (x86)\Internet Explorer\iexplore.exe
                    C:\Users\Admin\AppData\Local\Temp\259dbea8ad36ca1f502f7eba9257bf7111313f4ef76c34922cd34dd5808b5181.exe
                    3⤵
                    • Suspicious use of AdjustPrivilegeToken
                    • Suspicious use of SetWindowsHookEx
                    PID:860

              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\L3Q7J4T2-J8A6-L6O4-W4G3-U5J7D0W2W5F0\lpnysiavn2.txt
                MD5

                f94dc819ca773f1e3cb27abbc9e7fa27

                SHA1

                9a7700efadc5ea09ab288544ef1e3cd876255086

                SHA256

                a3377ade83786c2bdff5db19ff4dbfd796da4312402b5e77c4c63e38cc6eff92

                SHA512

                72a2c10d7a53a7f9a319dab66d77ed65639e9aa885b551e0055fc7eaf6ef33bbf109205b42ae11555a0f292563914bc6edb63b310c6f9bda9564095f77ab9196

              • C:\Users\Admin\AppData\Roaming\L3Q7J4T2-J8A6-L6O4-W4G3-U5J7D0W2W5F0\lpnysiavn4.txt
                MD5

                f3b25701fe362ec84616a93a45ce9998

                SHA1

                d62636d8caec13f04e28442a0a6fa1afeb024bbb

                SHA256

                b3d510ef04275ca8e698e5b3cbb0ece3949ef9252f0cdc839e9ee347409a2209

                SHA512

                98c5f56f3de340690c139e58eb7dac111979f0d4dffe9c4b24ff849510f4b6ffa9fd608c0a3de9ac3c9fd2190f0efaf715309061490f9755a9bfdf1c54ca0d84

              • memory/596-127-0x0000000000401364-mapping.dmp
              • memory/660-128-0x0000000000401364-mapping.dmp
              • memory/812-129-0x0000000000000000-mapping.dmp
              • memory/860-131-0x0000000000401364-mapping.dmp
              • memory/900-130-0x0000000000401364-mapping.dmp
              • memory/1548-133-0x0000000000411654-mapping.dmp
              • memory/1844-134-0x0000000000442F04-mapping.dmp
              • memory/2072-135-0x0000000000442F04-mapping.dmp
              • memory/2784-137-0x0000000000413750-mapping.dmp
              • memory/2800-138-0x000000000040C2A8-mapping.dmp
              • memory/3172-132-0x0000000000423BC0-mapping.dmp
              • memory/3708-115-0x00000000002C0000-0x00000000002C1000-memory.dmp
                Filesize

                4KB

              • memory/3708-117-0x0000000004B40000-0x0000000004B41000-memory.dmp
                Filesize

                4KB

              • memory/3708-118-0x00000000058C0000-0x000000000595F000-memory.dmp
                Filesize

                636KB

              • memory/3708-119-0x0000000005BD0000-0x0000000005C00000-memory.dmp
                Filesize

                192KB

              • memory/4208-126-0x0000000000401364-mapping.dmp
              • memory/4536-123-0x00000000005E0000-0x00000000005EA000-memory.dmp
                Filesize

                40KB

              • memory/4536-120-0x0000000000400000-0x000000000042C000-memory.dmp
                Filesize

                176KB

              • memory/4536-121-0x00000000004010B8-mapping.dmp
              • memory/4536-122-0x00000000005E0000-0x00000000005E6000-memory.dmp
                Filesize

                24KB

              • memory/4536-125-0x0000000000400000-0x000000000042C000-memory.dmp
                Filesize

                176KB

              • memory/4608-124-0x0000000000401364-mapping.dmp