Analysis

  • max time kernel
    23s
  • max time network
    147s
  • platform
    windows10_x64
  • resource
    win10v20210408
  • submitted
    21-04-2021 07:22

General

  • Target

    0344d6ec47d85e81c4346f14bad096c4.exe

  • Size

    95KB

  • MD5

    0344d6ec47d85e81c4346f14bad096c4

  • SHA1

    425c492897eaf59eb30a96fb2229285b6076b423

  • SHA256

    59c441437848b229ccf0ea69598b83e3be1664779a9c7a71142e69fc73a005fc

  • SHA512

    f192f12c91174acf2571b02be9fb0e4e34d3c5501193316ca4845d2a2046a49cbc17ab64f5a33ccc7d905ae3c5da28073b3d8a86ce649d9e3dcb30d21e5f4ac6

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

  • 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 NtSetInformationThreadHideFromDebugger 15 IoCs
  • Suspicious use of SetThreadContext 10 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Delays execution with timeout.exe 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 27 IoCs
  • Suspicious use of AdjustPrivilegeToken 6 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\0344d6ec47d85e81c4346f14bad096c4.exe
    "C:\Users\Admin\AppData\Local\Temp\0344d6ec47d85e81c4346f14bad096c4.exe"
    1⤵
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:752
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c timeout 1
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:544
      • C:\Windows\SysWOW64\timeout.exe
        timeout 1
        3⤵
        • Delays execution with timeout.exe
        PID:184
    • C:\Users\Admin\AppData\Local\Temp\0344d6ec47d85e81c4346f14bad096c4.exe
      "C:\Users\Admin\AppData\Local\Temp\0344d6ec47d85e81c4346f14bad096c4.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:1868
      • C:\Program Files (x86)\Internet Explorer\iexplore.exe
        C:\Users\Admin\AppData\Local\Temp\0344d6ec47d85e81c4346f14bad096c4.exe
        3⤵
          PID:2124
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -u -p 2124 -s 92
            4⤵
            • Program crash
            PID:1164
        • C:\Program Files (x86)\Internet Explorer\iexplore.exe
          C:\Users\Admin\AppData\Local\Temp\0344d6ec47d85e81c4346f14bad096c4.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:740
          • C:\Program Files (x86)\Internet Explorer\iexplore.exe
            /stext "C:\Users\Admin\AppData\Roaming\L3Q7I4T2-J8A6-K6O4-W4G3-T5J7D0W2V5E0\ekdzacmae0.txt"
            4⤵
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:2252
          • C:\Program Files (x86)\Internet Explorer\iexplore.exe
            /stext "C:\Users\Admin\AppData\Roaming\L3Q7I4T2-J8A6-K6O4-W4G3-T5J7D0W2V5E0\ekdzacmae1.txt"
            4⤵
              PID:2224
            • C:\Program Files (x86)\Internet Explorer\iexplore.exe
              /stext "C:\Users\Admin\AppData\Roaming\L3Q7I4T2-J8A6-K6O4-W4G3-T5J7D0W2V5E0\ekdzacmae2.txt"
              4⤵
              • Suspicious behavior: EnumeratesProcesses
              PID:3656
            • C:\Program Files (x86)\Internet Explorer\iexplore.exe
              /stext "C:\Users\Admin\AppData\Roaming\L3Q7I4T2-J8A6-K6O4-W4G3-T5J7D0W2V5E0\ekdzacmae3.txt"
              4⤵
                PID:3352
              • C:\Program Files (x86)\Internet Explorer\iexplore.exe
                /stext "C:\Users\Admin\AppData\Roaming\L3Q7I4T2-J8A6-K6O4-W4G3-T5J7D0W2V5E0\ekdzacmae4.txt"
                4⤵
                  PID:912
                  • C:\Windows\SysWOW64\WerFault.exe
                    C:\Windows\SysWOW64\WerFault.exe -u -p 912 -s 92
                    5⤵
                    • Program crash
                    PID:3156
                • C:\Program Files (x86)\Internet Explorer\iexplore.exe
                  /stext "C:\Users\Admin\AppData\Roaming\L3Q7I4T2-J8A6-K6O4-W4G3-T5J7D0W2V5E0\ekdzacmae4.txt"
                  4⤵
                    PID:184
                    • C:\Windows\SysWOW64\WerFault.exe
                      C:\Windows\SysWOW64\WerFault.exe -u -p 184 -s 92
                      5⤵
                      • Program crash
                      PID:204
                  • C:\Program Files (x86)\Internet Explorer\iexplore.exe
                    /stext "C:\Users\Admin\AppData\Roaming\L3Q7I4T2-J8A6-K6O4-W4G3-T5J7D0W2V5E0\ekdzacmae4.txt"
                    4⤵
                      PID:900
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -u -p 752 -s 1836
                  2⤵
                  • Program crash
                  • Suspicious behavior: EnumeratesProcesses
                  • Suspicious use of AdjustPrivilegeToken
                  PID:1260

              Network

              MITRE ATT&CK Enterprise v6

              Replay Monitor

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              Downloads

              • C:\Users\Admin\AppData\Roaming\L3Q7I4T2-J8A6-K6O4-W4G3-T5J7D0W2V5E0\ekdzacmae2.txt

                MD5

                f94dc819ca773f1e3cb27abbc9e7fa27

                SHA1

                9a7700efadc5ea09ab288544ef1e3cd876255086

                SHA256

                a3377ade83786c2bdff5db19ff4dbfd796da4312402b5e77c4c63e38cc6eff92

                SHA512

                72a2c10d7a53a7f9a319dab66d77ed65639e9aa885b551e0055fc7eaf6ef33bbf109205b42ae11555a0f292563914bc6edb63b310c6f9bda9564095f77ab9196

              • C:\Users\Admin\AppData\Roaming\L3Q7I4T2-J8A6-K6O4-W4G3-T5J7D0W2V5E0\ekdzacmae4.txt

                MD5

                f3b25701fe362ec84616a93a45ce9998

                SHA1

                d62636d8caec13f04e28442a0a6fa1afeb024bbb

                SHA256

                b3d510ef04275ca8e698e5b3cbb0ece3949ef9252f0cdc839e9ee347409a2209

                SHA512

                98c5f56f3de340690c139e58eb7dac111979f0d4dffe9c4b24ff849510f4b6ffa9fd608c0a3de9ac3c9fd2190f0efaf715309061490f9755a9bfdf1c54ca0d84

              • memory/184-157-0x000000000040C2A8-mapping.dmp

              • memory/184-121-0x0000000000000000-mapping.dmp

              • memory/544-120-0x0000000000000000-mapping.dmp

              • memory/740-134-0x0000000003511000-0x000000000360D000-memory.dmp

                Filesize

                1008KB

              • memory/740-129-0x0000000000400000-0x0000000000443000-memory.dmp

                Filesize

                268KB

              • memory/740-133-0x0000000003510000-0x0000000003663000-memory.dmp

                Filesize

                1.3MB

              • memory/740-130-0x0000000000401364-mapping.dmp

              • memory/752-118-0x00000000065A0000-0x00000000065A1000-memory.dmp

                Filesize

                4KB

              • memory/752-119-0x0000000002F60000-0x0000000002FA9000-memory.dmp

                Filesize

                292KB

              • memory/752-114-0x0000000000CE0000-0x0000000000CE1000-memory.dmp

                Filesize

                4KB

              • memory/752-116-0x0000000005B00000-0x0000000005B01000-memory.dmp

                Filesize

                4KB

              • memory/752-117-0x0000000005600000-0x0000000005AFE000-memory.dmp

                Filesize

                5.0MB

              • memory/900-159-0x000000000040C2A8-mapping.dmp

              • memory/900-158-0x0000000000400000-0x0000000000415000-memory.dmp

                Filesize

                84KB

              • memory/912-155-0x000000000040C2A8-mapping.dmp

              • memory/1868-126-0x0000000000400000-0x000000000042C000-memory.dmp

                Filesize

                176KB

              • memory/1868-123-0x00000000004010B8-mapping.dmp

              • memory/1868-122-0x0000000000400000-0x000000000042C000-memory.dmp

                Filesize

                176KB

              • memory/2124-128-0x0000000000401364-mapping.dmp

              • memory/2224-142-0x0000000000411654-mapping.dmp

              • memory/2224-141-0x0000000000400000-0x000000000041B000-memory.dmp

                Filesize

                108KB

              • memory/2252-138-0x0000000000423BC0-mapping.dmp

              • memory/2252-137-0x0000000000400000-0x0000000000426000-memory.dmp

                Filesize

                152KB

              • memory/3352-150-0x0000000000400000-0x0000000000416000-memory.dmp

                Filesize

                88KB

              • memory/3352-151-0x0000000000413750-mapping.dmp

              • memory/3656-146-0x0000000000442F04-mapping.dmp

              • memory/3656-145-0x0000000000400000-0x0000000000459000-memory.dmp

                Filesize

                356KB