Analysis

  • max time kernel
    144s
  • max time network
    154s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231127-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231127-enlocale:en-usos:windows10-2004-x64system
  • submitted
    11/12/2023, 09:50

General

  • Target

    45275c470c6cf686b9c6ca19c9abcc5a7cbd33dbd00e97fbfb95dae7c329a913.exe

  • Size

    6.9MB

  • MD5

    f3cb99964fa93a203d179c74976b9bac

  • SHA1

    c23cc18d9f57b066ac8bb3edce5f539ad1e1a226

  • SHA256

    45275c470c6cf686b9c6ca19c9abcc5a7cbd33dbd00e97fbfb95dae7c329a913

  • SHA512

    5f293b181f5c96948444e38d6525203f8b88da02b68dcbf0136d89a86a3c9a970619c122cc810bdf89ada68988700018450b211ae3dfdeb2b6ad7e8fc599c174

  • SSDEEP

    196608:vRW8Bq+q3WGhRQY914E1DF+V3bm/LCGNq3eUeKP3gdVfzj:vQeqbhPK4DFY4CtOUYVfzj

Score
7/10

Malware Config

Signatures

  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 3 IoCs
  • Unexpected DNS network traffic destination 2 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\45275c470c6cf686b9c6ca19c9abcc5a7cbd33dbd00e97fbfb95dae7c329a913.exe
    "C:\Users\Admin\AppData\Local\Temp\45275c470c6cf686b9c6ca19c9abcc5a7cbd33dbd00e97fbfb95dae7c329a913.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2212
    • C:\Users\Admin\AppData\Local\Temp\is-PVI4A.tmp\45275c470c6cf686b9c6ca19c9abcc5a7cbd33dbd00e97fbfb95dae7c329a913.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-PVI4A.tmp\45275c470c6cf686b9c6ca19c9abcc5a7cbd33dbd00e97fbfb95dae7c329a913.tmp" /SL5="$80182,6953145,68096,C:\Users\Admin\AppData\Local\Temp\45275c470c6cf686b9c6ca19c9abcc5a7cbd33dbd00e97fbfb95dae7c329a913.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops file in Program Files directory
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:1600
      • C:\Windows\SysWOW64\schtasks.exe
        "C:\Windows\system32\schtasks.exe" /Query
        3⤵
          PID:3884
        • C:\Program Files (x86)\WMAFormat\wmaformat.exe
          "C:\Program Files (x86)\WMAFormat\wmaformat.exe" -i
          3⤵
          • Executes dropped EXE
          PID:4444
        • C:\Program Files (x86)\WMAFormat\wmaformat.exe
          "C:\Program Files (x86)\WMAFormat\wmaformat.exe" -s
          3⤵
          • Executes dropped EXE
          PID:3400
        • C:\Windows\SysWOW64\net.exe
          "C:\Windows\system32\net.exe" helpmsg 11
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:1860
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 helpmsg 11
            4⤵
              PID:1608

      Network

            MITRE ATT&CK Enterprise v15

            Replay Monitor

            Loading Replay Monitor...

            Downloads

            • C:\Program Files (x86)\WMAFormat\wmaformat.exe

              Filesize

              1.8MB

              MD5

              0280b00d7cf6a1d0e836f72f5e94c0fb

              SHA1

              8f21d39aa6137c758f73c378042dde4001006946

              SHA256

              5494dda0175037320250f0dca19188091efff397b7e3a7f181e449c4c216703c

              SHA512

              072cf3bc6c580035a8f0ae719b03662d762a994138f879d2c6380cd8aff71b1c55731fb99658dec6a23756ad8fbafa7122480a6cd8434788eee6047181b7920e

            • C:\Users\Admin\AppData\Local\Temp\is-42QES.tmp\_isetup\_iscrypt.dll

              Filesize

              2KB

              MD5

              a69559718ab506675e907fe49deb71e9

              SHA1

              bc8f404ffdb1960b50c12ff9413c893b56f2e36f

              SHA256

              2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

              SHA512

              e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

            • C:\Users\Admin\AppData\Local\Temp\is-42QES.tmp\_isetup\_isdecmp.dll

              Filesize

              19KB

              MD5

              3adaa386b671c2df3bae5b39dc093008

              SHA1

              067cf95fbdb922d81db58432c46930f86d23dded

              SHA256

              71cd2f5bc6e13b8349a7c98697c6d2e3fcdeea92699cedd591875bea869fae38

              SHA512

              bbe4187758d1a69f75a8cca6b3184e0c20cf8701b16531b55ed4987497934b3c9ef66ecd5e6b83c7357f69734f1c8301b9f82f0a024bb693b732a2d5760fd303

            • C:\Users\Admin\AppData\Local\Temp\is-PVI4A.tmp\45275c470c6cf686b9c6ca19c9abcc5a7cbd33dbd00e97fbfb95dae7c329a913.tmp

              Filesize

              687KB

              MD5

              f448d7f4b76e5c9c3a4eaff16a8b9b73

              SHA1

              31808f1ffa84c954376975b7cdb0007e6b762488

              SHA256

              7233b85eb0f8b3aa5cae3811d727aa8742fec4d1091c120a0fe15006f424cc49

              SHA512

              f8197458cd2764c0b852dac34f9bf361110a7dc86903024a97c7bcd3f77b148342bf45e3c2b60f6af8198ae3b83938dbaad5e007d71a0f88006f3a0618cf36f4

            • memory/1600-10-0x0000000000690000-0x0000000000691000-memory.dmp

              Filesize

              4KB

            • memory/1600-163-0x0000000000690000-0x0000000000691000-memory.dmp

              Filesize

              4KB

            • memory/1600-161-0x0000000000400000-0x00000000004BC000-memory.dmp

              Filesize

              752KB

            • memory/2212-160-0x0000000000400000-0x0000000000418000-memory.dmp

              Filesize

              96KB

            • memory/2212-2-0x0000000000400000-0x0000000000418000-memory.dmp

              Filesize

              96KB

            • memory/2212-0-0x0000000000400000-0x0000000000418000-memory.dmp

              Filesize

              96KB

            • memory/3400-188-0x0000000000400000-0x00000000005CF000-memory.dmp

              Filesize

              1.8MB

            • memory/3400-179-0x0000000000400000-0x00000000005CF000-memory.dmp

              Filesize

              1.8MB

            • memory/3400-157-0x0000000000400000-0x00000000005CF000-memory.dmp

              Filesize

              1.8MB

            • memory/3400-207-0x0000000000400000-0x00000000005CF000-memory.dmp

              Filesize

              1.8MB

            • memory/3400-162-0x0000000000400000-0x00000000005CF000-memory.dmp

              Filesize

              1.8MB

            • memory/3400-204-0x0000000000400000-0x00000000005CF000-memory.dmp

              Filesize

              1.8MB

            • memory/3400-166-0x0000000000400000-0x00000000005CF000-memory.dmp

              Filesize

              1.8MB

            • memory/3400-167-0x0000000000400000-0x00000000005CF000-memory.dmp

              Filesize

              1.8MB

            • memory/3400-170-0x0000000000400000-0x00000000005CF000-memory.dmp

              Filesize

              1.8MB

            • memory/3400-173-0x0000000000400000-0x00000000005CF000-memory.dmp

              Filesize

              1.8MB

            • memory/3400-176-0x0000000000400000-0x00000000005CF000-memory.dmp

              Filesize

              1.8MB

            • memory/3400-159-0x0000000000400000-0x00000000005CF000-memory.dmp

              Filesize

              1.8MB

            • memory/3400-180-0x0000000000870000-0x000000000090E000-memory.dmp

              Filesize

              632KB

            • memory/3400-185-0x0000000000400000-0x00000000005CF000-memory.dmp

              Filesize

              1.8MB

            • memory/3400-201-0x0000000000400000-0x00000000005CF000-memory.dmp

              Filesize

              1.8MB

            • memory/3400-189-0x0000000000870000-0x000000000090E000-memory.dmp

              Filesize

              632KB

            • memory/3400-192-0x0000000000400000-0x00000000005CF000-memory.dmp

              Filesize

              1.8MB

            • memory/3400-195-0x0000000000400000-0x00000000005CF000-memory.dmp

              Filesize

              1.8MB

            • memory/3400-198-0x0000000000400000-0x00000000005CF000-memory.dmp

              Filesize

              1.8MB

            • memory/4444-151-0x0000000000400000-0x00000000005CF000-memory.dmp

              Filesize

              1.8MB

            • memory/4444-152-0x0000000000400000-0x00000000005CF000-memory.dmp

              Filesize

              1.8MB

            • memory/4444-154-0x0000000000400000-0x00000000005CF000-memory.dmp

              Filesize

              1.8MB