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Analysis

  • max time kernel
    142s
  • max time network
    145s
  • platform
    windows10-1703_x64
  • resource
    win10-20231129-en
  • resource tags

    arch:x64arch:x86image:win10-20231129-enlocale:en-usos:windows10-1703-x64system
  • submitted
    10/12/2023, 17:52

General

  • Target

    445e89bbf3c76356b6b06d5b69b64c6a8e36161afe9ec436124172c165674a0c.exe

  • Size

    7.5MB

  • MD5

    8f8363676a30694e5e8f9a48aefced5c

  • SHA1

    9713619f732296c3d14d22ae85202c82435e6895

  • SHA256

    445e89bbf3c76356b6b06d5b69b64c6a8e36161afe9ec436124172c165674a0c

  • SHA512

    8441dd279e04b77f7127b7498019c930e43ba4b3be8017a95d9bb83f8c55ccb5854b5c199f49e5caf4be85e00d4a8803f5fc21626e2007987e673bacd5943033

  • SSDEEP

    196608:J1WnE0mkLwfSuDOhMUQK2TMvYqBzQ26keWVe2JJpC+zj:fWnEELvuDOhtQnT+6rWPdC+zj

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 63 IoCs
  • Runs net.exe
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of WriteProcessMemory 18 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\445e89bbf3c76356b6b06d5b69b64c6a8e36161afe9ec436124172c165674a0c.exe
    "C:\Users\Admin\AppData\Local\Temp\445e89bbf3c76356b6b06d5b69b64c6a8e36161afe9ec436124172c165674a0c.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4720
    • C:\Users\Admin\AppData\Local\Temp\is-QVH11.tmp\445e89bbf3c76356b6b06d5b69b64c6a8e36161afe9ec436124172c165674a0c.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-QVH11.tmp\445e89bbf3c76356b6b06d5b69b64c6a8e36161afe9ec436124172c165674a0c.tmp" /SL5="$18007C,7594666,54272,C:\Users\Admin\AppData\Local\Temp\445e89bbf3c76356b6b06d5b69b64c6a8e36161afe9ec436124172c165674a0c.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops file in Program Files directory
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:4692
      • C:\Windows\SysWOW64\schtasks.exe
        "C:\Windows\system32\schtasks.exe" /Query
        3⤵
          PID:824
        • C:\Program Files (x86)\VoiceAssistant\voiceassist.exe
          "C:\Program Files (x86)\VoiceAssistant\voiceassist.exe" -i
          3⤵
          • Executes dropped EXE
          PID:4912
        • C:\Program Files (x86)\VoiceAssistant\voiceassist.exe
          "C:\Program Files (x86)\VoiceAssistant\voiceassist.exe" -s
          3⤵
          • Executes dropped EXE
          PID:3220
        • C:\Windows\SysWOW64\net.exe
          "C:\Windows\system32\net.exe" helpmsg 9
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:208
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 helpmsg 9
            4⤵
              PID:3168

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\Program Files (x86)\VoiceAssistant\voiceassist.exe

        Filesize

        1.7MB

        MD5

        c6038afd02d5282a75fdb252a8357570

        SHA1

        ee20c883a9d696ae2dec942f73c5238c20b634fe

        SHA256

        4da780071774e6bf95d8cbb5928abd5b934574bbf3f10468fa2d9540449e3f5b

        SHA512

        584888029c7f7d44bb0a7865bd992708d461c111129ce62739818f9801925b3d475abdb4e931f55d104eb0cd1f08f419c6b2bf816baedad1f19b1efeaaac6bb3

      • C:\Program Files (x86)\VoiceAssistant\voiceassist.exe

        Filesize

        867KB

        MD5

        d309f483655e12c6f4ba8c77216f3fa5

        SHA1

        cc1ad0e07035de8613f9762b31e0033aaafdaa10

        SHA256

        75ecc2adac7c017822a31560dfe52cc1857d8c208d5d45c0ec02131b210afe86

        SHA512

        628e5ca95675ebea3d7064f3278ccd96f2f6f0b05970327a5805bf266ceb1ab0074d04ca7a40d6c4b77fb784ad1cbdc8e7ec9bc2c4176a8b2e0e906b01595a30

      • C:\Program Files (x86)\VoiceAssistant\voiceassist.exe

        Filesize

        343KB

        MD5

        a1f086c5b607ea7b87af3809bf849237

        SHA1

        b4b6b72c5ff8ff1bcf0e408df73f27916fc68183

        SHA256

        001bff6878d28bf90c87d6630df14b2b813259c09b6d4645aa6c6ab3b5824919

        SHA512

        d0ca5306a5a92ab697dc6c46537e4cbbea3ed9f60cc6edf7aefd797f5dedb4c03a9132d9e5d8bb161edcf0c467cf00460427132a13ab737b675f54e960b4446e

      • C:\Users\Admin\AppData\Local\Temp\is-QVH11.tmp\445e89bbf3c76356b6b06d5b69b64c6a8e36161afe9ec436124172c165674a0c.tmp

        Filesize

        687KB

        MD5

        f448d7f4b76e5c9c3a4eaff16a8b9b73

        SHA1

        31808f1ffa84c954376975b7cdb0007e6b762488

        SHA256

        7233b85eb0f8b3aa5cae3811d727aa8742fec4d1091c120a0fe15006f424cc49

        SHA512

        f8197458cd2764c0b852dac34f9bf361110a7dc86903024a97c7bcd3f77b148342bf45e3c2b60f6af8198ae3b83938dbaad5e007d71a0f88006f3a0618cf36f4

      • \Users\Admin\AppData\Local\Temp\is-Q7T8R.tmp\_isetup\_iscrypt.dll

        Filesize

        2KB

        MD5

        a69559718ab506675e907fe49deb71e9

        SHA1

        bc8f404ffdb1960b50c12ff9413c893b56f2e36f

        SHA256

        2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

        SHA512

        e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

      • \Users\Admin\AppData\Local\Temp\is-Q7T8R.tmp\_isetup\_isdecmp.dll

        Filesize

        19KB

        MD5

        3adaa386b671c2df3bae5b39dc093008

        SHA1

        067cf95fbdb922d81db58432c46930f86d23dded

        SHA256

        71cd2f5bc6e13b8349a7c98697c6d2e3fcdeea92699cedd591875bea869fae38

        SHA512

        bbe4187758d1a69f75a8cca6b3184e0c20cf8701b16531b55ed4987497934b3c9ef66ecd5e6b83c7357f69734f1c8301b9f82f0a024bb693b732a2d5760fd303

      • memory/3220-157-0x0000000000400000-0x00000000006D6000-memory.dmp

        Filesize

        2.8MB

      • memory/3220-160-0x0000000000400000-0x00000000006D6000-memory.dmp

        Filesize

        2.8MB

      • memory/3220-198-0x0000000000400000-0x00000000006D6000-memory.dmp

        Filesize

        2.8MB

      • memory/3220-195-0x0000000000400000-0x00000000006D6000-memory.dmp

        Filesize

        2.8MB

      • memory/3220-205-0x0000000000400000-0x00000000006D6000-memory.dmp

        Filesize

        2.8MB

      • memory/3220-208-0x0000000000400000-0x00000000006D6000-memory.dmp

        Filesize

        2.8MB

      • memory/3220-182-0x0000000000A50000-0x0000000000AF2000-memory.dmp

        Filesize

        648KB

      • memory/3220-192-0x0000000000400000-0x00000000006D6000-memory.dmp

        Filesize

        2.8MB

      • memory/3220-189-0x0000000000A50000-0x0000000000AF2000-memory.dmp

        Filesize

        648KB

      • memory/3220-202-0x0000000000400000-0x00000000006D6000-memory.dmp

        Filesize

        2.8MB

      • memory/3220-188-0x0000000000400000-0x00000000006D6000-memory.dmp

        Filesize

        2.8MB

      • memory/3220-185-0x0000000000400000-0x00000000006D6000-memory.dmp

        Filesize

        2.8MB

      • memory/3220-165-0x0000000000400000-0x00000000006D6000-memory.dmp

        Filesize

        2.8MB

      • memory/3220-166-0x0000000000400000-0x00000000006D6000-memory.dmp

        Filesize

        2.8MB

      • memory/3220-169-0x0000000000400000-0x00000000006D6000-memory.dmp

        Filesize

        2.8MB

      • memory/3220-172-0x0000000000400000-0x00000000006D6000-memory.dmp

        Filesize

        2.8MB

      • memory/3220-175-0x0000000000400000-0x00000000006D6000-memory.dmp

        Filesize

        2.8MB

      • memory/3220-177-0x0000000000A50000-0x0000000000AF2000-memory.dmp

        Filesize

        648KB

      • memory/3220-181-0x0000000000400000-0x00000000006D6000-memory.dmp

        Filesize

        2.8MB

      • memory/4692-161-0x00000000001F0000-0x00000000001F1000-memory.dmp

        Filesize

        4KB

      • memory/4692-159-0x0000000000400000-0x00000000004BC000-memory.dmp

        Filesize

        752KB

      • memory/4692-7-0x00000000001F0000-0x00000000001F1000-memory.dmp

        Filesize

        4KB

      • memory/4720-0-0x0000000000400000-0x0000000000414000-memory.dmp

        Filesize

        80KB

      • memory/4720-158-0x0000000000400000-0x0000000000414000-memory.dmp

        Filesize

        80KB

      • memory/4720-2-0x0000000000400000-0x0000000000414000-memory.dmp

        Filesize

        80KB

      • memory/4912-164-0x0000000000400000-0x00000000006D6000-memory.dmp

        Filesize

        2.8MB

      • memory/4912-154-0x0000000000400000-0x00000000006D6000-memory.dmp

        Filesize

        2.8MB

      • memory/4912-151-0x0000000000400000-0x00000000006D6000-memory.dmp

        Filesize

        2.8MB

      • memory/4912-150-0x0000000000400000-0x00000000006D6000-memory.dmp

        Filesize

        2.8MB