Analysis

  • max time kernel
    144s
  • max time network
    133s
  • platform
    windows10-1703_x64
  • resource
    win10-20231023-en
  • resource tags

    arch:x64arch:x86image:win10-20231023-enlocale:en-usos:windows10-1703-x64system
  • submitted
    23/11/2023, 22:01

General

  • Target

    4f8b31e5701edb9c9ea4c7f1f5b605ddce851359da61131b8a1735bcb36654d8.exe

  • Size

    2.9MB

  • MD5

    d9314cd6fb2f08e37df78d67a8eee6c9

  • SHA1

    bee3954f7b9aaf696f0695ac5588a3c706f47dda

  • SHA256

    4f8b31e5701edb9c9ea4c7f1f5b605ddce851359da61131b8a1735bcb36654d8

  • SHA512

    c3498e387465d4052e0792170b67bb729d44be1b28c16ea7d685eb84ec047d894b6561f386140054f86d8ddc48efaa895a39abc24399aa6c48e95c2902c05aee

  • SSDEEP

    49152:O2jrjz+ZNL6x3OoqXinu3JTWWkrL/G708RmUM6UE/LSfblkkvQ1E5RY0E:XzzKiQSu3WetRmUoE/LSfblkA+E5lE

Score
7/10

Malware Config

Signatures

  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 3 IoCs
  • Unexpected DNS network traffic destination 1 IoCs

    Network traffic to other servers than the configured DNS servers was detected on the DNS port.

  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Drops file in Program Files directory 19 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Runs net.exe
  • Suspicious use of WriteProcessMemory 18 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\4f8b31e5701edb9c9ea4c7f1f5b605ddce851359da61131b8a1735bcb36654d8.exe
    "C:\Users\Admin\AppData\Local\Temp\4f8b31e5701edb9c9ea4c7f1f5b605ddce851359da61131b8a1735bcb36654d8.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1564
    • C:\Users\Admin\AppData\Local\Temp\is-0LT42.tmp\4f8b31e5701edb9c9ea4c7f1f5b605ddce851359da61131b8a1735bcb36654d8.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-0LT42.tmp\4f8b31e5701edb9c9ea4c7f1f5b605ddce851359da61131b8a1735bcb36654d8.tmp" /SL5="$8020A,2756262,54272,C:\Users\Admin\AppData\Local\Temp\4f8b31e5701edb9c9ea4c7f1f5b605ddce851359da61131b8a1735bcb36654d8.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops file in Program Files directory
      • Suspicious use of WriteProcessMemory
      PID:208
      • C:\Windows\SysWOW64\schtasks.exe
        "C:\Windows\system32\schtasks.exe" /Query
        3⤵
          PID:168
        • C:\Program Files (x86)\Common Files\TVJet\TVJet.exe
          "C:\Program Files (x86)\Common Files\TVJet\TVJet.exe" -i
          3⤵
          • Executes dropped EXE
          PID:4116
        • C:\Program Files (x86)\Common Files\TVJet\TVJet.exe
          "C:\Program Files (x86)\Common Files\TVJet\TVJet.exe" -s
          3⤵
          • Executes dropped EXE
          PID:3888
        • C:\Windows\SysWOW64\net.exe
          "C:\Windows\system32\net.exe" helpmsg 23
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:2256
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 helpmsg 23
            4⤵
              PID:5084

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\Program Files (x86)\Common Files\TVJet\TVJet.exe

        Filesize

        2.2MB

        MD5

        8e3834f8639ce3e547b46b339ffe2888

        SHA1

        2e6f1644c624cbd711270368fa1140dc920265fd

        SHA256

        563157a3eddcd8c07a62b43aa9b74e395860fa19a7f5bec0ff6bcdb528f8f16c

        SHA512

        15a558d4a3cebf7d0805447c86fa66ee89159082047fb9b0e9b168bdf655c2121def7808a39e0aa019b54e27cd1d80d7d53bcf1fe56724eea27c6d0faef1a3cb

      • C:\Program Files (x86)\Common Files\TVJet\TVJet.exe

        Filesize

        2.2MB

        MD5

        8e3834f8639ce3e547b46b339ffe2888

        SHA1

        2e6f1644c624cbd711270368fa1140dc920265fd

        SHA256

        563157a3eddcd8c07a62b43aa9b74e395860fa19a7f5bec0ff6bcdb528f8f16c

        SHA512

        15a558d4a3cebf7d0805447c86fa66ee89159082047fb9b0e9b168bdf655c2121def7808a39e0aa019b54e27cd1d80d7d53bcf1fe56724eea27c6d0faef1a3cb

      • C:\Program Files (x86)\Common Files\TVJet\TVJet.exe

        Filesize

        2.2MB

        MD5

        8e3834f8639ce3e547b46b339ffe2888

        SHA1

        2e6f1644c624cbd711270368fa1140dc920265fd

        SHA256

        563157a3eddcd8c07a62b43aa9b74e395860fa19a7f5bec0ff6bcdb528f8f16c

        SHA512

        15a558d4a3cebf7d0805447c86fa66ee89159082047fb9b0e9b168bdf655c2121def7808a39e0aa019b54e27cd1d80d7d53bcf1fe56724eea27c6d0faef1a3cb

      • C:\Users\Admin\AppData\Local\Temp\is-0LT42.tmp\4f8b31e5701edb9c9ea4c7f1f5b605ddce851359da61131b8a1735bcb36654d8.tmp

        Filesize

        683KB

        MD5

        f507ce43ea08d1721816ad4b0e090f50

        SHA1

        e4f02bcd410bddabea4c741838d9a88386547629

        SHA256

        d2218bde27d66f28e3caf15e899653a9357ebdc7adf9a763b687f6c03c93e5e1

        SHA512

        37b2f92df632f75447572df840a236ef01021e8291536bf2e8156179333f770afdd8bcbf50cb05bbdbdaa53c00ace46119290800b115823ea035a2389a3f6693

      • C:\Users\Admin\AppData\Local\Temp\is-0LT42.tmp\4f8b31e5701edb9c9ea4c7f1f5b605ddce851359da61131b8a1735bcb36654d8.tmp

        Filesize

        683KB

        MD5

        f507ce43ea08d1721816ad4b0e090f50

        SHA1

        e4f02bcd410bddabea4c741838d9a88386547629

        SHA256

        d2218bde27d66f28e3caf15e899653a9357ebdc7adf9a763b687f6c03c93e5e1

        SHA512

        37b2f92df632f75447572df840a236ef01021e8291536bf2e8156179333f770afdd8bcbf50cb05bbdbdaa53c00ace46119290800b115823ea035a2389a3f6693

      • \Users\Admin\AppData\Local\Temp\is-SJ1J2.tmp\_isetup\_iscrypt.dll

        Filesize

        2KB

        MD5

        a69559718ab506675e907fe49deb71e9

        SHA1

        bc8f404ffdb1960b50c12ff9413c893b56f2e36f

        SHA256

        2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

        SHA512

        e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

      • \Users\Admin\AppData\Local\Temp\is-SJ1J2.tmp\_isetup\_isdecmp.dll

        Filesize

        13KB

        MD5

        a813d18268affd4763dde940246dc7e5

        SHA1

        c7366e1fd925c17cc6068001bd38eaef5b42852f

        SHA256

        e19781aabe466dd8779cb9c8fa41bbb73375447066bb34e876cf388a6ed63c64

        SHA512

        b310ed4cd2e94381c00a6a370fcb7cc867ebe425d705b69caaaaffdafbab91f72d357966916053e72e68ecf712f2af7585500c58bb53ec3e1d539179fcb45fb4

      • \Users\Admin\AppData\Local\Temp\is-SJ1J2.tmp\_isetup\_isdecmp.dll

        Filesize

        13KB

        MD5

        a813d18268affd4763dde940246dc7e5

        SHA1

        c7366e1fd925c17cc6068001bd38eaef5b42852f

        SHA256

        e19781aabe466dd8779cb9c8fa41bbb73375447066bb34e876cf388a6ed63c64

        SHA512

        b310ed4cd2e94381c00a6a370fcb7cc867ebe425d705b69caaaaffdafbab91f72d357966916053e72e68ecf712f2af7585500c58bb53ec3e1d539179fcb45fb4

      • memory/208-10-0x00000000001F0000-0x00000000001F1000-memory.dmp

        Filesize

        4KB

      • memory/208-73-0x00000000001F0000-0x00000000001F1000-memory.dmp

        Filesize

        4KB

      • memory/208-71-0x0000000000400000-0x00000000004BA000-memory.dmp

        Filesize

        744KB

      • memory/1564-70-0x0000000000400000-0x0000000000414000-memory.dmp

        Filesize

        80KB

      • memory/1564-1-0x0000000000400000-0x0000000000414000-memory.dmp

        Filesize

        80KB

      • memory/3888-91-0x00000000026B0000-0x000000000275D000-memory.dmp

        Filesize

        692KB

      • memory/3888-99-0x0000000000400000-0x0000000000638000-memory.dmp

        Filesize

        2.2MB

      • memory/3888-69-0x0000000000400000-0x0000000000638000-memory.dmp

        Filesize

        2.2MB

      • memory/3888-119-0x0000000000400000-0x0000000000638000-memory.dmp

        Filesize

        2.2MB

      • memory/3888-116-0x0000000000400000-0x0000000000638000-memory.dmp

        Filesize

        2.2MB

      • memory/3888-72-0x0000000000400000-0x0000000000638000-memory.dmp

        Filesize

        2.2MB

      • memory/3888-113-0x0000000000400000-0x0000000000638000-memory.dmp

        Filesize

        2.2MB

      • memory/3888-76-0x0000000000400000-0x0000000000638000-memory.dmp

        Filesize

        2.2MB

      • memory/3888-77-0x0000000000400000-0x0000000000638000-memory.dmp

        Filesize

        2.2MB

      • memory/3888-80-0x0000000000400000-0x0000000000638000-memory.dmp

        Filesize

        2.2MB

      • memory/3888-83-0x0000000000400000-0x0000000000638000-memory.dmp

        Filesize

        2.2MB

      • memory/3888-86-0x0000000000400000-0x0000000000638000-memory.dmp

        Filesize

        2.2MB

      • memory/3888-89-0x00000000026B0000-0x000000000275D000-memory.dmp

        Filesize

        692KB

      • memory/3888-90-0x0000000000400000-0x0000000000638000-memory.dmp

        Filesize

        2.2MB

      • memory/3888-109-0x0000000000400000-0x0000000000638000-memory.dmp

        Filesize

        2.2MB

      • memory/3888-96-0x0000000000400000-0x0000000000638000-memory.dmp

        Filesize

        2.2MB

      • memory/3888-67-0x0000000000400000-0x0000000000638000-memory.dmp

        Filesize

        2.2MB

      • memory/3888-100-0x00000000026B0000-0x000000000275D000-memory.dmp

        Filesize

        692KB

      • memory/3888-103-0x0000000000400000-0x0000000000638000-memory.dmp

        Filesize

        2.2MB

      • memory/3888-106-0x0000000000400000-0x0000000000638000-memory.dmp

        Filesize

        2.2MB

      • memory/4116-60-0x0000000000400000-0x0000000000638000-memory.dmp

        Filesize

        2.2MB

      • memory/4116-61-0x0000000000400000-0x0000000000638000-memory.dmp

        Filesize

        2.2MB

      • memory/4116-65-0x0000000000400000-0x0000000000638000-memory.dmp

        Filesize

        2.2MB

      • memory/4116-64-0x0000000000400000-0x0000000000638000-memory.dmp

        Filesize

        2.2MB