Analysis

  • max time kernel
    156s
  • max time network
    148s
  • 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, 16:16

General

  • Target

    262bf846e0a78c18aaf1bf43b92cd0194c4310ce0ee3fe30e9d8a54eae1edd38.exe

  • Size

    6.9MB

  • MD5

    55adcb229b2404659e24ecb4acb18046

  • SHA1

    5281d0ab9cf22e28163b098287029f21ee4fbb87

  • SHA256

    262bf846e0a78c18aaf1bf43b92cd0194c4310ce0ee3fe30e9d8a54eae1edd38

  • SHA512

    78659b3a0fc376edf795d8ecd2d2f1c2de9220fd9483030be6ee689aad3967e4a8e45cca5f0a73260d426186d6ca792e3dc7505a386371112628565e1d49cfdd

  • SSDEEP

    196608:UeusL5Sg97UrK5EvfjuiKsrGugWn7juD9k3Ozj:vVsg95KnxLrGufn765k+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\262bf846e0a78c18aaf1bf43b92cd0194c4310ce0ee3fe30e9d8a54eae1edd38.exe
    "C:\Users\Admin\AppData\Local\Temp\262bf846e0a78c18aaf1bf43b92cd0194c4310ce0ee3fe30e9d8a54eae1edd38.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:5080
    • C:\Users\Admin\AppData\Local\Temp\is-65TIP.tmp\262bf846e0a78c18aaf1bf43b92cd0194c4310ce0ee3fe30e9d8a54eae1edd38.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-65TIP.tmp\262bf846e0a78c18aaf1bf43b92cd0194c4310ce0ee3fe30e9d8a54eae1edd38.tmp" /SL5="$501EC,6944675,68096,C:\Users\Admin\AppData\Local\Temp\262bf846e0a78c18aaf1bf43b92cd0194c4310ce0ee3fe30e9d8a54eae1edd38.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops file in Program Files directory
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:2824
      • C:\Windows\SysWOW64\schtasks.exe
        "C:\Windows\system32\schtasks.exe" /Query
        3⤵
          PID:1956
        • C:\Program Files (x86)\ConvertWMA\wmaconvert.exe
          "C:\Program Files (x86)\ConvertWMA\wmaconvert.exe" -i
          3⤵
          • Executes dropped EXE
          PID:3300
        • C:\Program Files (x86)\ConvertWMA\wmaconvert.exe
          "C:\Program Files (x86)\ConvertWMA\wmaconvert.exe" -s
          3⤵
          • Executes dropped EXE
          PID:4428
        • C:\Windows\SysWOW64\net.exe
          "C:\Windows\system32\net.exe" helpmsg 11
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:4936
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 helpmsg 11
            4⤵
              PID:2308

      Network

            MITRE ATT&CK Enterprise v15

            Replay Monitor

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            Downloads

            • C:\Program Files (x86)\ConvertWMA\wmaconvert.exe

              Filesize

              1.8MB

              MD5

              fe9e9d10c240fabd1e08b138e19b2da4

              SHA1

              f65c6f1509625234372f820c9027a8f864489fd3

              SHA256

              ed07307aa6b42a4170865e4f5ac1aa9d2aafe055044e8b97b386f910fc5ff03c

              SHA512

              993d5f4bef3846b3af002179aef461cc555b22e5c2c3e16f94983934b4fef7808f248a771620f538e0a416ce1d8d96f720d373d828dad779194df2fa88c3bb2a

            • C:\Users\Admin\AppData\Local\Temp\is-34NA7.tmp\_isetup\_iscrypt.dll

              Filesize

              2KB

              MD5

              a69559718ab506675e907fe49deb71e9

              SHA1

              bc8f404ffdb1960b50c12ff9413c893b56f2e36f

              SHA256

              2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

              SHA512

              e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

            • C:\Users\Admin\AppData\Local\Temp\is-34NA7.tmp\_isetup\_isdecmp.dll

              Filesize

              19KB

              MD5

              3adaa386b671c2df3bae5b39dc093008

              SHA1

              067cf95fbdb922d81db58432c46930f86d23dded

              SHA256

              71cd2f5bc6e13b8349a7c98697c6d2e3fcdeea92699cedd591875bea869fae38

              SHA512

              bbe4187758d1a69f75a8cca6b3184e0c20cf8701b16531b55ed4987497934b3c9ef66ecd5e6b83c7357f69734f1c8301b9f82f0a024bb693b732a2d5760fd303

            • C:\Users\Admin\AppData\Local\Temp\is-65TIP.tmp\262bf846e0a78c18aaf1bf43b92cd0194c4310ce0ee3fe30e9d8a54eae1edd38.tmp

              Filesize

              687KB

              MD5

              f448d7f4b76e5c9c3a4eaff16a8b9b73

              SHA1

              31808f1ffa84c954376975b7cdb0007e6b762488

              SHA256

              7233b85eb0f8b3aa5cae3811d727aa8742fec4d1091c120a0fe15006f424cc49

              SHA512

              f8197458cd2764c0b852dac34f9bf361110a7dc86903024a97c7bcd3f77b148342bf45e3c2b60f6af8198ae3b83938dbaad5e007d71a0f88006f3a0618cf36f4

            • memory/2824-160-0x0000000000400000-0x00000000004BC000-memory.dmp

              Filesize

              752KB

            • memory/2824-162-0x0000000000660000-0x0000000000661000-memory.dmp

              Filesize

              4KB

            • memory/2824-10-0x0000000000660000-0x0000000000661000-memory.dmp

              Filesize

              4KB

            • memory/3300-150-0x0000000000400000-0x00000000005CF000-memory.dmp

              Filesize

              1.8MB

            • memory/3300-152-0x0000000000400000-0x00000000005CF000-memory.dmp

              Filesize

              1.8MB

            • memory/3300-153-0x0000000000400000-0x00000000005CF000-memory.dmp

              Filesize

              1.8MB

            • memory/3300-155-0x0000000000400000-0x00000000005CF000-memory.dmp

              Filesize

              1.8MB

            • memory/4428-165-0x0000000000400000-0x00000000005CF000-memory.dmp

              Filesize

              1.8MB

            • memory/4428-178-0x0000000000400000-0x00000000005CF000-memory.dmp

              Filesize

              1.8MB

            • memory/4428-158-0x0000000000400000-0x00000000005CF000-memory.dmp

              Filesize

              1.8MB

            • memory/4428-161-0x0000000000400000-0x00000000005CF000-memory.dmp

              Filesize

              1.8MB

            • memory/4428-207-0x0000000000400000-0x00000000005CF000-memory.dmp

              Filesize

              1.8MB

            • memory/4428-204-0x0000000000400000-0x00000000005CF000-memory.dmp

              Filesize

              1.8MB

            • memory/4428-166-0x0000000000400000-0x00000000005CF000-memory.dmp

              Filesize

              1.8MB

            • memory/4428-169-0x0000000000400000-0x00000000005CF000-memory.dmp

              Filesize

              1.8MB

            • memory/4428-172-0x0000000000400000-0x00000000005CF000-memory.dmp

              Filesize

              1.8MB

            • memory/4428-175-0x0000000000400000-0x00000000005CF000-memory.dmp

              Filesize

              1.8MB

            • memory/4428-179-0x0000000000710000-0x00000000007AE000-memory.dmp

              Filesize

              632KB

            • memory/4428-200-0x0000000000400000-0x00000000005CF000-memory.dmp

              Filesize

              1.8MB

            • memory/4428-184-0x0000000000400000-0x00000000005CF000-memory.dmp

              Filesize

              1.8MB

            • memory/4428-187-0x0000000000400000-0x00000000005CF000-memory.dmp

              Filesize

              1.8MB

            • memory/4428-189-0x0000000000710000-0x00000000007AE000-memory.dmp

              Filesize

              632KB

            • memory/4428-191-0x0000000000400000-0x00000000005CF000-memory.dmp

              Filesize

              1.8MB

            • memory/4428-194-0x0000000000400000-0x00000000005CF000-memory.dmp

              Filesize

              1.8MB

            • memory/4428-197-0x0000000000400000-0x00000000005CF000-memory.dmp

              Filesize

              1.8MB

            • memory/5080-159-0x0000000000400000-0x0000000000418000-memory.dmp

              Filesize

              96KB

            • memory/5080-0-0x0000000000400000-0x0000000000418000-memory.dmp

              Filesize

              96KB

            • memory/5080-2-0x0000000000400000-0x0000000000418000-memory.dmp

              Filesize

              96KB