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Analysis

  • max time kernel
    151s
  • max time network
    159s
  • 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, 10:02

General

  • Target

    191353d41a9e17d24d31ce1a8117d74ed3cfd007ddd7fa2cf3a61ad7edae65d4.exe

  • Size

    6.9MB

  • MD5

    28d1d72f94921e68ec36847a344092e9

  • SHA1

    71242b265a543173b5db10fb4412e7841e384da6

  • SHA256

    191353d41a9e17d24d31ce1a8117d74ed3cfd007ddd7fa2cf3a61ad7edae65d4

  • SHA512

    c06631ed36fdf1d9ce749798f8cb8576d2c7d34695036a17c036f5008f960a3e94314b4ae18da3649dd6493881de353d999d6ca93c92c63dddaec5f512d4db04

  • SSDEEP

    196608:IRW8Bq+q3WGhRQY914E1DF+V3bm/LCGNq3eUeKP3gdVfzj:IQeqbhPK4DFY4CtOUYVfzj

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\191353d41a9e17d24d31ce1a8117d74ed3cfd007ddd7fa2cf3a61ad7edae65d4.exe
    "C:\Users\Admin\AppData\Local\Temp\191353d41a9e17d24d31ce1a8117d74ed3cfd007ddd7fa2cf3a61ad7edae65d4.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1516
    • C:\Users\Admin\AppData\Local\Temp\is-QEASH.tmp\191353d41a9e17d24d31ce1a8117d74ed3cfd007ddd7fa2cf3a61ad7edae65d4.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-QEASH.tmp\191353d41a9e17d24d31ce1a8117d74ed3cfd007ddd7fa2cf3a61ad7edae65d4.tmp" /SL5="$50220,6953145,68096,C:\Users\Admin\AppData\Local\Temp\191353d41a9e17d24d31ce1a8117d74ed3cfd007ddd7fa2cf3a61ad7edae65d4.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops file in Program Files directory
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:4404
      • C:\Windows\SysWOW64\schtasks.exe
        "C:\Windows\system32\schtasks.exe" /Query
        3⤵
          PID:4464
        • C:\Program Files (x86)\WMAFormat\wmaformat.exe
          "C:\Program Files (x86)\WMAFormat\wmaformat.exe" -i
          3⤵
          • Executes dropped EXE
          PID:3988
        • C:\Program Files (x86)\WMAFormat\wmaformat.exe
          "C:\Program Files (x86)\WMAFormat\wmaformat.exe" -s
          3⤵
          • Executes dropped EXE
          PID:5104
        • C:\Windows\SysWOW64\net.exe
          "C:\Windows\system32\net.exe" helpmsg 11
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:4992
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 helpmsg 11
            4⤵
              PID:2340

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

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

        Filesize

        1.5MB

        MD5

        b500837ebbfe5281ca118869de8e0075

        SHA1

        f204cf37c63656bdef70eea395f0de92612f4b5c

        SHA256

        c6767c23a6ffd68f9d4a8f0423ad84c28cc2d461e8ce6c9032e3d9ed0c62123c

        SHA512

        d016b7b74c2c64b6edf7992971bf8bb7364e9fe2741ff1b3707a0515e2492ed4b8f60e3da9f23c27a011116e14a5d6094e7da00e08f7e59ff88f9230ca9a714c

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

        Filesize

        1.2MB

        MD5

        926ff407e83427c4c7d9bd7e9b23f73f

        SHA1

        2a3825f213c2b753636ab3aafb13b2613f7634c9

        SHA256

        e404928e1601019c7c96baf883582f59395e79123c00b2d8cba42c5f387e2642

        SHA512

        6e2a75fe93b81bfde8b3990e63ca690c85ffea1b0f84f1f7bc2ec66e9e554f4c012817a715325c3fc249493e4fe63f1043fd559d899e3a1379c4f58438b3e78d

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

        Filesize

        1.3MB

        MD5

        09feb52269eb12fce77d75531d4a940f

        SHA1

        018c5b86240dc5126bdb11cf48f761335decc9f7

        SHA256

        c52277689ec57d345fbdf8307bde53009576d142541ca72332611540bdd45f03

        SHA512

        66877f47074005a71243dc5b37b445a25e725ed207b2590030893a2d490c2b2e031754b5dce201980503f9c153653f472ad1ea8fcf2cbd92fab6142ff1cf2b13

      • C:\Users\Admin\AppData\Local\Temp\is-3U7N0.tmp\_isetup\_iscrypt.dll

        Filesize

        2KB

        MD5

        a69559718ab506675e907fe49deb71e9

        SHA1

        bc8f404ffdb1960b50c12ff9413c893b56f2e36f

        SHA256

        2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

        SHA512

        e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

      • C:\Users\Admin\AppData\Local\Temp\is-3U7N0.tmp\_isetup\_isdecmp.dll

        Filesize

        19KB

        MD5

        3adaa386b671c2df3bae5b39dc093008

        SHA1

        067cf95fbdb922d81db58432c46930f86d23dded

        SHA256

        71cd2f5bc6e13b8349a7c98697c6d2e3fcdeea92699cedd591875bea869fae38

        SHA512

        bbe4187758d1a69f75a8cca6b3184e0c20cf8701b16531b55ed4987497934b3c9ef66ecd5e6b83c7357f69734f1c8301b9f82f0a024bb693b732a2d5760fd303

      • C:\Users\Admin\AppData\Local\Temp\is-QEASH.tmp\191353d41a9e17d24d31ce1a8117d74ed3cfd007ddd7fa2cf3a61ad7edae65d4.tmp

        Filesize

        687KB

        MD5

        f448d7f4b76e5c9c3a4eaff16a8b9b73

        SHA1

        31808f1ffa84c954376975b7cdb0007e6b762488

        SHA256

        7233b85eb0f8b3aa5cae3811d727aa8742fec4d1091c120a0fe15006f424cc49

        SHA512

        f8197458cd2764c0b852dac34f9bf361110a7dc86903024a97c7bcd3f77b148342bf45e3c2b60f6af8198ae3b83938dbaad5e007d71a0f88006f3a0618cf36f4

      • memory/1516-159-0x0000000000400000-0x0000000000418000-memory.dmp

        Filesize

        96KB

      • memory/1516-2-0x0000000000400000-0x0000000000418000-memory.dmp

        Filesize

        96KB

      • memory/1516-0-0x0000000000400000-0x0000000000418000-memory.dmp

        Filesize

        96KB

      • memory/3988-151-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/3988-152-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/3988-154-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/4404-162-0x0000000002340000-0x0000000002341000-memory.dmp

        Filesize

        4KB

      • memory/4404-10-0x0000000002340000-0x0000000002341000-memory.dmp

        Filesize

        4KB

      • memory/4404-160-0x0000000000400000-0x00000000004BC000-memory.dmp

        Filesize

        752KB

      • memory/5104-178-0x0000000000900000-0x000000000099E000-memory.dmp

        Filesize

        632KB

      • memory/5104-180-0x0000000000900000-0x000000000099E000-memory.dmp

        Filesize

        632KB

      • memory/5104-165-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/5104-166-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/5104-169-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/5104-172-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/5104-175-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/5104-179-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/5104-158-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/5104-161-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/5104-185-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/5104-188-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/5104-189-0x0000000000900000-0x000000000099E000-memory.dmp

        Filesize

        632KB

      • memory/5104-192-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/5104-195-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/5104-198-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/5104-202-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/5104-205-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/5104-208-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB