Analysis

  • max time kernel
    145s
  • max time network
    132s
  • platform
    windows10-1703_x64
  • resource
    win10-20231023-en
  • resource tags

    arch:x64arch:x86image:win10-20231023-enlocale:en-usos:windows10-1703-x64system
  • submitted
    11/12/2023, 06:39

General

  • Target

    f05faca7641801a25f595776b6d4aa7ea5985f0bf235146c164822189d36ff63.exe

  • Size

    6.9MB

  • MD5

    4d5cf45336073df0c55e2972eca3ec23

  • SHA1

    c667c06cafc45d8b7c0f1b92a50cb58973eef1b9

  • SHA256

    f05faca7641801a25f595776b6d4aa7ea5985f0bf235146c164822189d36ff63

  • SHA512

    ff16c284a0d9ce21e5750321291d14c4e02aacaf2163af1ff61e5e7d3bc10c157bc4e0010a4c6c220befd327e73567b6e6677a67aed5c4c66e594223a7ea738d

  • SSDEEP

    196608:OyD4UUAnfcrSuleVp+jatZRGrrC/sF5wvACzj:54Uvfc2RGatZcXF5uzj

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\f05faca7641801a25f595776b6d4aa7ea5985f0bf235146c164822189d36ff63.exe
    "C:\Users\Admin\AppData\Local\Temp\f05faca7641801a25f595776b6d4aa7ea5985f0bf235146c164822189d36ff63.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:228
    • C:\Users\Admin\AppData\Local\Temp\is-SLHIV.tmp\f05faca7641801a25f595776b6d4aa7ea5985f0bf235146c164822189d36ff63.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-SLHIV.tmp\f05faca7641801a25f595776b6d4aa7ea5985f0bf235146c164822189d36ff63.tmp" /SL5="$A01C8,6986290,68096,C:\Users\Admin\AppData\Local\Temp\f05faca7641801a25f595776b6d4aa7ea5985f0bf235146c164822189d36ff63.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops file in Program Files directory
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:3296
      • C:\Windows\SysWOW64\schtasks.exe
        "C:\Windows\system32\schtasks.exe" /Query
        3⤵
          PID:2176
        • C:\Program Files (x86)\WMAFormat\wmaformat.exe
          "C:\Program Files (x86)\WMAFormat\wmaformat.exe" -i
          3⤵
          • Executes dropped EXE
          PID:3232
        • C:\Windows\SysWOW64\net.exe
          "C:\Windows\system32\net.exe" helpmsg 11
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:2928
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 helpmsg 11
            4⤵
              PID:3100
          • C:\Program Files (x86)\WMAFormat\wmaformat.exe
            "C:\Program Files (x86)\WMAFormat\wmaformat.exe" -s
            3⤵
            • Executes dropped EXE
            PID:3300

      Network

            MITRE ATT&CK Enterprise v15

            Replay Monitor

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            Downloads

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

              Filesize

              1.8MB

              MD5

              ee8b22146a6e1f7cbba2c11bbca9b52b

              SHA1

              f67a54573451b7bf873192100a1ef3e1c980f7a2

              SHA256

              5a3ad1b1662ad7858be1fef617d98b04f0eb23b10fc806a89ca3de8ce36ccd77

              SHA512

              16254c4914b639a7bde084fd1970c62e2a637b72a9cb86ab43f13da5c473e44612596b003389314eadc136034f726900b895b3180b1d8bfe4752d2e7fbcbeefa

            • C:\Users\Admin\AppData\Local\Temp\is-SLHIV.tmp\f05faca7641801a25f595776b6d4aa7ea5985f0bf235146c164822189d36ff63.tmp

              Filesize

              687KB

              MD5

              f448d7f4b76e5c9c3a4eaff16a8b9b73

              SHA1

              31808f1ffa84c954376975b7cdb0007e6b762488

              SHA256

              7233b85eb0f8b3aa5cae3811d727aa8742fec4d1091c120a0fe15006f424cc49

              SHA512

              f8197458cd2764c0b852dac34f9bf361110a7dc86903024a97c7bcd3f77b148342bf45e3c2b60f6af8198ae3b83938dbaad5e007d71a0f88006f3a0618cf36f4

            • \Users\Admin\AppData\Local\Temp\is-55A55.tmp\_isetup\_iscrypt.dll

              Filesize

              2KB

              MD5

              a69559718ab506675e907fe49deb71e9

              SHA1

              bc8f404ffdb1960b50c12ff9413c893b56f2e36f

              SHA256

              2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

              SHA512

              e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

            • \Users\Admin\AppData\Local\Temp\is-55A55.tmp\_isetup\_isdecmp.dll

              Filesize

              19KB

              MD5

              3adaa386b671c2df3bae5b39dc093008

              SHA1

              067cf95fbdb922d81db58432c46930f86d23dded

              SHA256

              71cd2f5bc6e13b8349a7c98697c6d2e3fcdeea92699cedd591875bea869fae38

              SHA512

              bbe4187758d1a69f75a8cca6b3184e0c20cf8701b16531b55ed4987497934b3c9ef66ecd5e6b83c7357f69734f1c8301b9f82f0a024bb693b732a2d5760fd303

            • memory/228-0-0x0000000000400000-0x0000000000418000-memory.dmp

              Filesize

              96KB

            • memory/228-159-0x0000000000400000-0x0000000000418000-memory.dmp

              Filesize

              96KB

            • memory/3232-150-0x0000000000400000-0x00000000005CF000-memory.dmp

              Filesize

              1.8MB

            • memory/3232-151-0x0000000000400000-0x00000000005CF000-memory.dmp

              Filesize

              1.8MB

            • memory/3232-153-0x0000000000400000-0x00000000005CF000-memory.dmp

              Filesize

              1.8MB

            • memory/3232-154-0x0000000000400000-0x00000000005CF000-memory.dmp

              Filesize

              1.8MB

            • memory/3296-160-0x0000000000400000-0x00000000004BC000-memory.dmp

              Filesize

              752KB

            • memory/3296-162-0x00000000001F0000-0x00000000001F1000-memory.dmp

              Filesize

              4KB

            • memory/3296-11-0x00000000001F0000-0x00000000001F1000-memory.dmp

              Filesize

              4KB

            • memory/3300-165-0x0000000000400000-0x00000000005CF000-memory.dmp

              Filesize

              1.8MB

            • memory/3300-180-0x0000000000870000-0x000000000090E000-memory.dmp

              Filesize

              632KB

            • memory/3300-158-0x0000000000400000-0x00000000005CF000-memory.dmp

              Filesize

              1.8MB

            • memory/3300-156-0x0000000000400000-0x00000000005CF000-memory.dmp

              Filesize

              1.8MB

            • memory/3300-166-0x0000000000400000-0x00000000005CF000-memory.dmp

              Filesize

              1.8MB

            • memory/3300-169-0x0000000000400000-0x00000000005CF000-memory.dmp

              Filesize

              1.8MB

            • memory/3300-172-0x0000000000400000-0x00000000005CF000-memory.dmp

              Filesize

              1.8MB

            • memory/3300-175-0x0000000000400000-0x00000000005CF000-memory.dmp

              Filesize

              1.8MB

            • memory/3300-178-0x0000000000400000-0x00000000005CF000-memory.dmp

              Filesize

              1.8MB

            • memory/3300-161-0x0000000000400000-0x00000000005CF000-memory.dmp

              Filesize

              1.8MB

            • memory/3300-179-0x0000000000870000-0x000000000090E000-memory.dmp

              Filesize

              632KB

            • memory/3300-185-0x0000000000400000-0x00000000005CF000-memory.dmp

              Filesize

              1.8MB

            • memory/3300-188-0x0000000000400000-0x00000000005CF000-memory.dmp

              Filesize

              1.8MB

            • memory/3300-189-0x0000000000870000-0x000000000090E000-memory.dmp

              Filesize

              632KB

            • memory/3300-192-0x0000000000400000-0x00000000005CF000-memory.dmp

              Filesize

              1.8MB

            • memory/3300-195-0x0000000000400000-0x00000000005CF000-memory.dmp

              Filesize

              1.8MB

            • memory/3300-198-0x0000000000400000-0x00000000005CF000-memory.dmp

              Filesize

              1.8MB

            • memory/3300-201-0x0000000000400000-0x00000000005CF000-memory.dmp

              Filesize

              1.8MB

            • memory/3300-204-0x0000000000400000-0x00000000005CF000-memory.dmp

              Filesize

              1.8MB

            • memory/3300-207-0x0000000000400000-0x00000000005CF000-memory.dmp

              Filesize

              1.8MB