Analysis

  • max time kernel
    91s
  • max time network
    138s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    08-02-2024 13:22

General

  • Target

    Új megrendelés - 00905173088 CPTL árajánlat - egyenként 100.exe

  • Size

    110KB

  • MD5

    e18a8e37b5d2cfaec89222fd74c88081

  • SHA1

    19a794cb433dc4445e33becc7c2ce7d211baefa6

  • SHA256

    31ec85607b59877f42e791a2ac23d8c8c95edc8bad7fc0939a90a3807f445c6d

  • SHA512

    287358b925ff7a6e214ea29612461c94fbc12eb145a8ed3cfc8a7400151a6fe7ebc399d6ae0ad22d31dd8b9e2082668957a30baca807502cf1a78beb33b5c2c8

  • SSDEEP

    1536:Kx+EiewYluxHtThsiP34bbCaFJqIc5fpD7/xL:KrvyRhsiffaKIc5hDF

Malware Config

Extracted

Family

xpertrat

Version

3.0.10

Botnet

BLAZE

C2

twart.myfirewall.org:5344

Mutex

A6G228Q5-H8G1-F1T6-U4K6-C1J007E2X0Y8

Signatures

  • UAC bypass 3 TTPs 1 IoCs
  • Windows security bypass 2 TTPs 1 IoCs
  • XpertRAT

    XpertRAT is a remote access trojan with various capabilities.

  • XpertRAT Core payload 1 IoCs
  • NirSoft MailPassView 1 IoCs

    Password recovery tool for various email clients

  • NirSoft WebBrowserPassView 1 IoCs

    Password recovery tool for various web browsers

  • Nirsoft 3 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.

  • Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Program crash 1 IoCs
  • Suspicious use of SetThreadContext 8 IoCs
  • Suspicious behavior: EnumeratesProcesses 8 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Új megrendelés - 00905173088 CPTL árajánlat - egyenként 100.exe
    "C:\Users\Admin\AppData\Local\Temp\Új megrendelés - 00905173088 CPTL árajánlat - egyenként 100.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:3676
    • C:\Windows\SysWOW64\calc.exe
      "C:\Windows\SYSWOW64\calc.exe"
      2⤵
      • UAC bypass
      • Windows security bypass
      • Suspicious use of SetThreadContext
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2640
      • C:\Program Files (x86)\Internet Explorer\iexplore.exe
        C:\Windows\SysWOW64\calc.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:2244
        • C:\Program Files (x86)\Internet Explorer\iexplore.exe
          /stext "C:\Users\Admin\AppData\Roaming\A6G228Q5-H8G1-F1T6-U4K6-C1J007E2X0Y8\jgdjucvau0.txt"
          4⤵
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:3648
        • C:\Program Files (x86)\Internet Explorer\iexplore.exe
          /stext "C:\Users\Admin\AppData\Roaming\A6G228Q5-H8G1-F1T6-U4K6-C1J007E2X0Y8\jgdjucvau1.txt"
          4⤵
          • Accesses Microsoft Outlook accounts
          PID:4180
        • C:\Program Files (x86)\Internet Explorer\iexplore.exe
          /stext "C:\Users\Admin\AppData\Roaming\A6G228Q5-H8G1-F1T6-U4K6-C1J007E2X0Y8\jgdjucvau2.txt"
          4⤵
          • Suspicious behavior: EnumeratesProcesses
          PID:4364
        • C:\Program Files (x86)\Internet Explorer\iexplore.exe
          /stext "C:\Users\Admin\AppData\Roaming\A6G228Q5-H8G1-F1T6-U4K6-C1J007E2X0Y8\jgdjucvau3.txt"
          4⤵
            PID:4448
            • C:\Windows\SysWOW64\WerFault.exe
              C:\Windows\SysWOW64\WerFault.exe -u -p 4448 -s 84
              5⤵
              • Program crash
              PID:3040
          • C:\Program Files (x86)\Internet Explorer\iexplore.exe
            /stext "C:\Users\Admin\AppData\Roaming\A6G228Q5-H8G1-F1T6-U4K6-C1J007E2X0Y8\jgdjucvau3.txt"
            4⤵
              PID:1040
            • C:\Program Files (x86)\Internet Explorer\iexplore.exe
              /stext "C:\Users\Admin\AppData\Roaming\A6G228Q5-H8G1-F1T6-U4K6-C1J007E2X0Y8\jgdjucvau4.txt"
              4⤵
                PID:2208
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 4448 -ip 4448
          1⤵
            PID:3336

          Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Users\Admin\AppData\Roaming\A6G228Q5-H8G1-F1T6-U4K6-C1J007E2X0Y8\jgdjucvau2.txt

            Filesize

            3KB

            MD5

            f94dc819ca773f1e3cb27abbc9e7fa27

            SHA1

            9a7700efadc5ea09ab288544ef1e3cd876255086

            SHA256

            a3377ade83786c2bdff5db19ff4dbfd796da4312402b5e77c4c63e38cc6eff92

            SHA512

            72a2c10d7a53a7f9a319dab66d77ed65639e9aa885b551e0055fc7eaf6ef33bbf109205b42ae11555a0f292563914bc6edb63b310c6f9bda9564095f77ab9196

          • C:\Users\Admin\AppData\Roaming\A6G228Q5-H8G1-F1T6-U4K6-C1J007E2X0Y8\jgdjucvau4.txt

            Filesize

            2B

            MD5

            f3b25701fe362ec84616a93a45ce9998

            SHA1

            d62636d8caec13f04e28442a0a6fa1afeb024bbb

            SHA256

            b3d510ef04275ca8e698e5b3cbb0ece3949ef9252f0cdc839e9ee347409a2209

            SHA512

            98c5f56f3de340690c139e58eb7dac111979f0d4dffe9c4b24ff849510f4b6ffa9fd608c0a3de9ac3c9fd2190f0efaf715309061490f9755a9bfdf1c54ca0d84

          • memory/1040-36-0x0000000000400000-0x0000000000416000-memory.dmp

            Filesize

            88KB

          • memory/2208-37-0x0000000000400000-0x0000000000415000-memory.dmp

            Filesize

            84KB

          • memory/2244-16-0x0000000000400000-0x0000000000443000-memory.dmp

            Filesize

            268KB

          • memory/2640-9-0x0000000000400000-0x0000000000434000-memory.dmp

            Filesize

            208KB

          • memory/2640-32-0x0000000000400000-0x0000000000434000-memory.dmp

            Filesize

            208KB

          • memory/2640-12-0x0000000000400000-0x0000000000434000-memory.dmp

            Filesize

            208KB

          • memory/3648-26-0x0000000000400000-0x0000000000426000-memory.dmp

            Filesize

            152KB

          • memory/3676-5-0x0000000005360000-0x0000000005370000-memory.dmp

            Filesize

            64KB

          • memory/3676-8-0x0000000008CD0000-0x0000000008DD0000-memory.dmp

            Filesize

            1024KB

          • memory/3676-15-0x0000000074730000-0x0000000074EE0000-memory.dmp

            Filesize

            7.7MB

          • memory/3676-7-0x0000000007860000-0x00000000078FC000-memory.dmp

            Filesize

            624KB

          • memory/3676-6-0x0000000005080000-0x000000000508A000-memory.dmp

            Filesize

            40KB

          • memory/3676-0-0x0000000000670000-0x000000000068E000-memory.dmp

            Filesize

            120KB

          • memory/3676-4-0x00000000050F0000-0x0000000005182000-memory.dmp

            Filesize

            584KB

          • memory/3676-3-0x00000000056A0000-0x0000000005C44000-memory.dmp

            Filesize

            5.6MB

          • memory/3676-2-0x0000000002950000-0x000000000296A000-memory.dmp

            Filesize

            104KB

          • memory/3676-1-0x0000000074730000-0x0000000074EE0000-memory.dmp

            Filesize

            7.7MB

          • memory/4180-27-0x0000000000400000-0x000000000041B000-memory.dmp

            Filesize

            108KB

          • memory/4364-28-0x0000000000400000-0x0000000000459000-memory.dmp

            Filesize

            356KB