Analysis

  • max time kernel
    150s
  • max time network
    155s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    29/12/2023, 21:00

General

  • Target

    03dd31fc3faca182bd4c0dec23274254.exe

  • Size

    816KB

  • MD5

    03dd31fc3faca182bd4c0dec23274254

  • SHA1

    9c94203812d69e6c964dad84e39f31e45b5357fa

  • SHA256

    45e5751506fe45c4587963c66217bfe2605f55ae1026b80a12e9856711e12517

  • SHA512

    7ec58ffc04679b0da65700c0559f2db39f17a8c1235ca17ca44ffba3a1bac4c2b63c1b8172c9d532e9574d6dfc675afc6b87b7523b80e3d987fa04597a3dde97

  • SSDEEP

    24576:THIPmfiJ8fEdNQmf6YyPs2E7Y8nyWZE1ciBh:j2mfffEdNQCodE7iW6T

Malware Config

Signatures

  • NirSoft MailPassView 2 IoCs

    Password recovery tool for various email clients

  • Nirsoft 24 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • UPX packed file 43 IoCs

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

  • Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs
  • Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs

    Bootkits write to the MBR to gain persistence at a level below the operating system.

  • Suspicious use of SetThreadContext 11 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\03dd31fc3faca182bd4c0dec23274254.exe
    "C:\Users\Admin\AppData\Local\Temp\03dd31fc3faca182bd4c0dec23274254.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:4840
    • C:\Users\Admin\AppData\Local\Temp\03dd31fc3faca182bd4c0dec23274254.exe
      "C:\Users\Admin\AppData\Local\Temp\03dd31fc3faca182bd4c0dec23274254.exe"
      2⤵
      • Writes to the Master Boot Record (MBR)
      • Suspicious use of SetThreadContext
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:1820
      • C:\Users\Admin\AppData\Local\Temp\03dd31fc3faca182bd4c0dec23274254.exe
        "C:\Users\Admin\AppData\Local\Temp\03dd31fc3faca182bd4c0dec23274254.exe"
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:3800
        • C:\Users\Admin\AppData\Local\Temp\03dd31fc3faca182bd4c0dec23274254.exe
          /stext "C:\Users\Admin\AppData\Local\Temp\offc.dat"
          4⤵
            PID:2412
          • C:\Users\Admin\AppData\Local\Temp\03dd31fc3faca182bd4c0dec23274254.exe
            /stext "C:\Users\Admin\AppData\Local\Temp\mess.dat"
            4⤵
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:1100
          • C:\Users\Admin\AppData\Local\Temp\03dd31fc3faca182bd4c0dec23274254.exe
            /stext "C:\Users\Admin\AppData\Local\Temp\mail.dat"
            4⤵
            • Accesses Microsoft Outlook accounts
            PID:4620
          • C:\Users\Admin\AppData\Local\Temp\03dd31fc3faca182bd4c0dec23274254.exe
            /stext "C:\Users\Admin\AppData\Local\Temp\dial.dat"
            4⤵
              PID:4584
            • C:\Users\Admin\AppData\Local\Temp\03dd31fc3faca182bd4c0dec23274254.exe
              /stext "C:\Users\Admin\AppData\Local\Temp\chro.dat"
              4⤵
                PID:2964
              • C:\Users\Admin\AppData\Local\Temp\03dd31fc3faca182bd4c0dec23274254.exe
                /stext "C:\Users\Admin\AppData\Local\Temp\iexp.dat"
                4⤵
                • Suspicious use of AdjustPrivilegeToken
                PID:3476
              • C:\Users\Admin\AppData\Local\Temp\03dd31fc3faca182bd4c0dec23274254.exe
                /stext "C:\Users\Admin\AppData\Local\Temp\ptsg.dat"
                4⤵
                  PID:1440
                • C:\Users\Admin\AppData\Local\Temp\03dd31fc3faca182bd4c0dec23274254.exe
                  /stext "C:\Users\Admin\AppData\Local\Temp\ffox.dat"
                  4⤵
                    PID:3992
                  • C:\Users\Admin\AppData\Local\Temp\03dd31fc3faca182bd4c0dec23274254.exe
                    /stext "C:\Users\Admin\AppData\Local\Temp\opra.dat"
                    4⤵
                      PID:848

              Network

              MITRE ATT&CK Enterprise v15

              Replay Monitor

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              Downloads

              • C:\Users\Admin\AppData\Local\Temp\dial.dat

                Filesize

                2B

                MD5

                f3b25701fe362ec84616a93a45ce9998

                SHA1

                d62636d8caec13f04e28442a0a6fa1afeb024bbb

                SHA256

                b3d510ef04275ca8e698e5b3cbb0ece3949ef9252f0cdc839e9ee347409a2209

                SHA512

                98c5f56f3de340690c139e58eb7dac111979f0d4dffe9c4b24ff849510f4b6ffa9fd608c0a3de9ac3c9fd2190f0efaf715309061490f9755a9bfdf1c54ca0d84

              • C:\Users\Admin\AppData\Local\Temp\offc.dat

                Filesize

                729B

                MD5

                e79acc07c611054e1b0eeaa392f3f511

                SHA1

                bb678c7e79e11cc32585a4bf9e037b06342e0379

                SHA256

                511337a0af3a381fd8b71aaf46ab88f6e468b09710485a6d01240f6bc428c267

                SHA512

                f20d41aa9046e1dcd2eeaabe056f391b4588dfe68700d4d51b4858447eed08b5631005dd9bca771127eab9be6bb790d95d77c66578a23921a3b37a08424627d0

              • memory/848-85-0x0000000000400000-0x0000000000419000-memory.dmp

                Filesize

                100KB

              • memory/848-87-0x0000000000400000-0x0000000000419000-memory.dmp

                Filesize

                100KB

              • memory/848-84-0x0000000000400000-0x0000000000419000-memory.dmp

                Filesize

                100KB

              • memory/848-83-0x0000000000400000-0x0000000000419000-memory.dmp

                Filesize

                100KB

              • memory/848-81-0x0000000000400000-0x0000000000419000-memory.dmp

                Filesize

                100KB

              • memory/1100-32-0x0000000000400000-0x0000000000425000-memory.dmp

                Filesize

                148KB

              • memory/1100-31-0x0000000000400000-0x0000000000425000-memory.dmp

                Filesize

                148KB

              • memory/1100-30-0x0000000000400000-0x0000000000425000-memory.dmp

                Filesize

                148KB

              • memory/1100-29-0x0000000000400000-0x0000000000425000-memory.dmp

                Filesize

                148KB

              • memory/1100-26-0x0000000000400000-0x0000000000425000-memory.dmp

                Filesize

                148KB

              • memory/1440-69-0x0000000000400000-0x0000000000410000-memory.dmp

                Filesize

                64KB

              • memory/1440-70-0x0000000000400000-0x0000000000410000-memory.dmp

                Filesize

                64KB

              • memory/1440-67-0x0000000000400000-0x0000000000410000-memory.dmp

                Filesize

                64KB

              • memory/1820-11-0x0000000000400000-0x00000000004A4000-memory.dmp

                Filesize

                656KB

              • memory/1820-3-0x0000000000400000-0x00000000004A4000-memory.dmp

                Filesize

                656KB

              • memory/1820-5-0x0000000000400000-0x00000000004A4000-memory.dmp

                Filesize

                656KB

              • memory/2412-21-0x0000000000400000-0x0000000000418000-memory.dmp

                Filesize

                96KB

              • memory/2412-20-0x0000000000400000-0x0000000000418000-memory.dmp

                Filesize

                96KB

              • memory/2412-19-0x0000000000400000-0x0000000000418000-memory.dmp

                Filesize

                96KB

              • memory/2412-17-0x0000000000400000-0x0000000000418000-memory.dmp

                Filesize

                96KB

              • memory/2412-23-0x0000000000400000-0x0000000000418000-memory.dmp

                Filesize

                96KB

              • memory/2964-55-0x0000000000400000-0x000000000043E000-memory.dmp

                Filesize

                248KB

              • memory/2964-51-0x0000000000400000-0x000000000043E000-memory.dmp

                Filesize

                248KB

              • memory/2964-57-0x0000000000400000-0x000000000043E000-memory.dmp

                Filesize

                248KB

              • memory/2964-53-0x0000000000400000-0x000000000043E000-memory.dmp

                Filesize

                248KB

              • memory/3476-64-0x0000000000400000-0x000000000041B000-memory.dmp

                Filesize

                108KB

              • memory/3476-65-0x0000000000400000-0x000000000041B000-memory.dmp

                Filesize

                108KB

              • memory/3476-63-0x0000000000400000-0x000000000041B000-memory.dmp

                Filesize

                108KB

              • memory/3476-62-0x0000000000400000-0x000000000041B000-memory.dmp

                Filesize

                108KB

              • memory/3476-60-0x0000000000400000-0x000000000041B000-memory.dmp

                Filesize

                108KB

              • memory/3800-90-0x0000000000400000-0x00000000004AE000-memory.dmp

                Filesize

                696KB

              • memory/3800-46-0x0000000000400000-0x00000000004AE000-memory.dmp

                Filesize

                696KB

              • memory/3800-8-0x0000000000400000-0x00000000004AE000-memory.dmp

                Filesize

                696KB

              • memory/3800-10-0x0000000000400000-0x00000000004AE000-memory.dmp

                Filesize

                696KB

              • memory/3800-13-0x0000000000400000-0x00000000004AE000-memory.dmp

                Filesize

                696KB

              • memory/3992-78-0x0000000000400000-0x0000000000419000-memory.dmp

                Filesize

                100KB

              • memory/3992-74-0x0000000000400000-0x0000000000419000-memory.dmp

                Filesize

                100KB

              • memory/3992-75-0x0000000000400000-0x0000000000419000-memory.dmp

                Filesize

                100KB

              • memory/3992-76-0x0000000000400000-0x0000000000419000-memory.dmp

                Filesize

                100KB

              • memory/3992-72-0x0000000000400000-0x0000000000419000-memory.dmp

                Filesize

                100KB

              • memory/4584-41-0x0000000000400000-0x0000000000418000-memory.dmp

                Filesize

                96KB

              • memory/4584-44-0x0000000000400000-0x0000000000418000-memory.dmp

                Filesize

                96KB

              • memory/4584-43-0x0000000000400000-0x0000000000418000-memory.dmp

                Filesize

                96KB

              • memory/4584-48-0x0000000000400000-0x0000000000418000-memory.dmp

                Filesize

                96KB

              • memory/4584-45-0x0000000000400000-0x0000000000418000-memory.dmp

                Filesize

                96KB

              • memory/4620-38-0x0000000000400000-0x000000000041F000-memory.dmp

                Filesize

                124KB

              • memory/4620-39-0x0000000000400000-0x000000000041F000-memory.dmp

                Filesize

                124KB

              • memory/4620-36-0x0000000000400000-0x000000000041F000-memory.dmp

                Filesize

                124KB

              • memory/4620-34-0x0000000000400000-0x000000000041F000-memory.dmp

                Filesize

                124KB

              • memory/4840-0-0x0000000000400000-0x00000000004CC000-memory.dmp

                Filesize

                816KB