Analysis

  • max time kernel
    41s
  • max time network
    135s
  • platform
    windows10_x64
  • resource
    win10v20210410
  • submitted
    21-04-2021 14:21

General

  • Target

    d97e3dcbb6d173e9f0d3b76fbecdad0d.exe

  • Size

    799KB

  • MD5

    d97e3dcbb6d173e9f0d3b76fbecdad0d

  • SHA1

    e4a169cece454e23c0de2aa3bec30a08d1422e25

  • SHA256

    ad7352ddb27f165faa309916430d17aead69a6359f74d163c0c488bb551b3fb0

  • SHA512

    4a928ef2927822b7919b017f2c1b073a9c88c1adbd572fbf2ec66bb4933ea8642075678c0a32817b4ca529f9730fd0c3f4f43daa34dfa09a66faf1d86220ef3c

Malware Config

Extracted

Family

xpertrat

Version

3.0.10

Botnet

special X

C2

ghytrty.duckdns.org:4145

spapertyy.duckdns.org:4145

Mutex

L3Q7I4T2-J8A6-K6O4-W4G3-T5J7D0W2V5E0

Signatures

  • Suspicious use of NtCreateProcessExOtherParentProcess 1 IoCs
  • UAC bypass 3 TTPs
  • Windows security bypass 2 TTPs
  • XpertRAT

    XpertRAT is a remote access trojan with various capabilities.

  • XpertRAT Core Payload 2 IoCs
  • NirSoft MailPassView 2 IoCs

    Password recovery tool for various email clients

  • NirSoft WebBrowserPassView 2 IoCs

    Password recovery tool for various web browsers

  • Nirsoft 6 IoCs
  • Adds policy Run key to start application 2 TTPs 2 IoCs
  • UPX packed file 2 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • 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
  • Program crash 4 IoCs
  • Suspicious use of SetThreadContext 11 IoCs
  • Suspicious behavior: EnumeratesProcesses 8 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\d97e3dcbb6d173e9f0d3b76fbecdad0d.exe
    "C:\Users\Admin\AppData\Local\Temp\d97e3dcbb6d173e9f0d3b76fbecdad0d.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:3872
    • C:\Users\Admin\AppData\Local\Temp\d97e3dcbb6d173e9f0d3b76fbecdad0d.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:4060
      • C:\Program Files (x86)\Internet Explorer\iexplore.exe
        C:\Users\Admin\AppData\Local\Temp\d97e3dcbb6d173e9f0d3b76fbecdad0d.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:1260
        • C:\Program Files (x86)\Internet Explorer\iexplore.exe
          /stext "C:\Users\Admin\AppData\Roaming\L3Q7I4T2-J8A6-K6O4-W4G3-T5J7D0W2V5E0\bfnrqmwjl0.txt"
          4⤵
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:3784
        • C:\Program Files (x86)\Internet Explorer\iexplore.exe
          /stext "C:\Users\Admin\AppData\Roaming\L3Q7I4T2-J8A6-K6O4-W4G3-T5J7D0W2V5E0\bfnrqmwjl1.txt"
          4⤵
            PID:1276
          • C:\Program Files (x86)\Internet Explorer\iexplore.exe
            /stext "C:\Users\Admin\AppData\Roaming\L3Q7I4T2-J8A6-K6O4-W4G3-T5J7D0W2V5E0\bfnrqmwjl2.txt"
            4⤵
              PID:2700
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -u -p 2700 -s 32
                5⤵
                • Program crash
                PID:2660
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -u -p 2700 -s 44
                5⤵
                • Suspicious use of NtCreateProcessExOtherParentProcess
                • Program crash
                PID:2684
            • C:\Program Files (x86)\Internet Explorer\iexplore.exe
              /stext "C:\Users\Admin\AppData\Roaming\L3Q7I4T2-J8A6-K6O4-W4G3-T5J7D0W2V5E0\bfnrqmwjl2.txt"
              4⤵
              • Suspicious behavior: EnumeratesProcesses
              PID:3992
            • C:\Program Files (x86)\Internet Explorer\iexplore.exe
              /stext "C:\Users\Admin\AppData\Roaming\L3Q7I4T2-J8A6-K6O4-W4G3-T5J7D0W2V5E0\bfnrqmwjl3.txt"
              4⤵
                PID:500
              • C:\Program Files (x86)\Internet Explorer\iexplore.exe
                /stext "C:\Users\Admin\AppData\Roaming\L3Q7I4T2-J8A6-K6O4-W4G3-T5J7D0W2V5E0\bfnrqmwjl4.txt"
                4⤵
                  PID:2512
                • C:\Program Files (x86)\Internet Explorer\iexplore.exe
                  /stext "C:\Users\Admin\AppData\Roaming\L3Q7I4T2-J8A6-K6O4-W4G3-T5J7D0W2V5E0\bfnrqmwjl4.txt"
                  4⤵
                    PID:1704
                    • C:\Windows\SysWOW64\WerFault.exe
                      C:\Windows\SysWOW64\WerFault.exe -u -p 1704 -s 92
                      5⤵
                      • Program crash
                      PID:3200
                  • C:\Program Files (x86)\Internet Explorer\iexplore.exe
                    /stext "C:\Users\Admin\AppData\Roaming\L3Q7I4T2-J8A6-K6O4-W4G3-T5J7D0W2V5E0\bfnrqmwjl4.txt"
                    4⤵
                      PID:3656
                      • C:\Windows\SysWOW64\WerFault.exe
                        C:\Windows\SysWOW64\WerFault.exe -u -p 3656 -s 92
                        5⤵
                        • Program crash
                        PID:3764
                    • C:\Program Files (x86)\Internet Explorer\iexplore.exe
                      /stext "C:\Users\Admin\AppData\Roaming\L3Q7I4T2-J8A6-K6O4-W4G3-T5J7D0W2V5E0\bfnrqmwjl4.txt"
                      4⤵
                        PID:2260

                Network

                MITRE ATT&CK Enterprise v6

                Replay Monitor

                Loading Replay Monitor...

                Downloads

                • C:\Users\Admin\AppData\Roaming\L3Q7I4T2-J8A6-K6O4-W4G3-T5J7D0W2V5E0\bfnrqmwjl2.txt

                  MD5

                  f94dc819ca773f1e3cb27abbc9e7fa27

                  SHA1

                  9a7700efadc5ea09ab288544ef1e3cd876255086

                  SHA256

                  a3377ade83786c2bdff5db19ff4dbfd796da4312402b5e77c4c63e38cc6eff92

                  SHA512

                  72a2c10d7a53a7f9a319dab66d77ed65639e9aa885b551e0055fc7eaf6ef33bbf109205b42ae11555a0f292563914bc6edb63b310c6f9bda9564095f77ab9196

                • C:\Users\Admin\AppData\Roaming\L3Q7I4T2-J8A6-K6O4-W4G3-T5J7D0W2V5E0\bfnrqmwjl4.txt

                  MD5

                  f3b25701fe362ec84616a93a45ce9998

                  SHA1

                  d62636d8caec13f04e28442a0a6fa1afeb024bbb

                  SHA256

                  b3d510ef04275ca8e698e5b3cbb0ece3949ef9252f0cdc839e9ee347409a2209

                  SHA512

                  98c5f56f3de340690c139e58eb7dac111979f0d4dffe9c4b24ff849510f4b6ffa9fd608c0a3de9ac3c9fd2190f0efaf715309061490f9755a9bfdf1c54ca0d84

                • memory/500-153-0x0000000000413750-mapping.dmp

                • memory/500-152-0x0000000000400000-0x0000000000416000-memory.dmp

                  Filesize

                  88KB

                • memory/1260-129-0x0000000000401364-mapping.dmp

                • memory/1260-128-0x0000000000400000-0x0000000000443000-memory.dmp

                  Filesize

                  268KB

                • memory/1260-132-0x0000000003790000-0x00000000038E3000-memory.dmp

                  Filesize

                  1.3MB

                • memory/1260-133-0x0000000003791000-0x000000000388D000-memory.dmp

                  Filesize

                  1008KB

                • memory/1276-142-0x0000000000411654-mapping.dmp

                • memory/1276-141-0x0000000000400000-0x000000000041B000-memory.dmp

                  Filesize

                  108KB

                • memory/1704-161-0x000000000040C2A8-mapping.dmp

                • memory/2260-164-0x0000000000400000-0x0000000000415000-memory.dmp

                  Filesize

                  84KB

                • memory/2260-165-0x000000000040C2A8-mapping.dmp

                • memory/2512-157-0x000000000040C2A8-mapping.dmp

                • memory/2700-146-0x0000000000442F04-mapping.dmp

                • memory/3656-163-0x000000000040C2A8-mapping.dmp

                • memory/3784-137-0x0000000000400000-0x0000000000426000-memory.dmp

                  Filesize

                  152KB

                • memory/3784-138-0x0000000000423BC0-mapping.dmp

                • memory/3872-118-0x0000000005290000-0x0000000005291000-memory.dmp

                  Filesize

                  4KB

                • memory/3872-114-0x0000000000990000-0x0000000000991000-memory.dmp

                  Filesize

                  4KB

                • memory/3872-116-0x00000000058E0000-0x00000000058E1000-memory.dmp

                  Filesize

                  4KB

                • memory/3872-117-0x00000000052C0000-0x00000000052C1000-memory.dmp

                  Filesize

                  4KB

                • memory/3872-123-0x0000000009F10000-0x0000000009F8D000-memory.dmp

                  Filesize

                  500KB

                • memory/3872-122-0x00000000077F0000-0x00000000078BA000-memory.dmp

                  Filesize

                  808KB

                • memory/3872-121-0x00000000053E0000-0x00000000058DE000-memory.dmp

                  Filesize

                  5.0MB

                • memory/3872-120-0x0000000005540000-0x000000000554E000-memory.dmp

                  Filesize

                  56KB

                • memory/3872-119-0x0000000007670000-0x0000000007671000-memory.dmp

                  Filesize

                  4KB

                • memory/3992-147-0x0000000000400000-0x0000000000459000-memory.dmp

                  Filesize

                  356KB

                • memory/3992-148-0x0000000000442F04-mapping.dmp

                • memory/4060-125-0x00000000004010B8-mapping.dmp

                • memory/4060-124-0x0000000000400000-0x000000000042C000-memory.dmp

                  Filesize

                  176KB

                • memory/4060-136-0x0000000000400000-0x000000000042C000-memory.dmp

                  Filesize

                  176KB