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Analysis

  • max time kernel
    144s
  • max time network
    152s
  • 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, 15:24

General

  • Target

    93ad1fff986a06bd505e3a59c1128cc718fafb034a2a03a794afad41f2d9dd34.exe

  • Size

    6.9MB

  • MD5

    c9776db4b1251b9057ee2930124e2bd4

  • SHA1

    e6c0e52b506dc1147db81311420e81df61ac8c6d

  • SHA256

    93ad1fff986a06bd505e3a59c1128cc718fafb034a2a03a794afad41f2d9dd34

  • SHA512

    a7048e50476d9bc4cc6cea82d335220461bf544779674c052fba229717994310476dacff35260742179e2528839705eda1ec4fac7a0dec9328ec8113485153cb

  • SSDEEP

    196608:ixOlhkHxfDumIwWJfU1IzKkGjAqiuGIqOg9zj:RjkHxfKTnJjzKkRtF9zj

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\93ad1fff986a06bd505e3a59c1128cc718fafb034a2a03a794afad41f2d9dd34.exe
    "C:\Users\Admin\AppData\Local\Temp\93ad1fff986a06bd505e3a59c1128cc718fafb034a2a03a794afad41f2d9dd34.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4864
    • C:\Users\Admin\AppData\Local\Temp\is-RH7OP.tmp\93ad1fff986a06bd505e3a59c1128cc718fafb034a2a03a794afad41f2d9dd34.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-RH7OP.tmp\93ad1fff986a06bd505e3a59c1128cc718fafb034a2a03a794afad41f2d9dd34.tmp" /SL5="$A022E,6950053,68096,C:\Users\Admin\AppData\Local\Temp\93ad1fff986a06bd505e3a59c1128cc718fafb034a2a03a794afad41f2d9dd34.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops file in Program Files directory
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:4164
      • C:\Windows\SysWOW64\schtasks.exe
        "C:\Windows\system32\schtasks.exe" /Query
        3⤵
          PID:3760
        • C:\Program Files (x86)\ConvertWMA\wmaconvert.exe
          "C:\Program Files (x86)\ConvertWMA\wmaconvert.exe" -i
          3⤵
          • Executes dropped EXE
          PID:4500
        • C:\Program Files (x86)\ConvertWMA\wmaconvert.exe
          "C:\Program Files (x86)\ConvertWMA\wmaconvert.exe" -s
          3⤵
          • Executes dropped EXE
          PID:2092
        • C:\Windows\SysWOW64\net.exe
          "C:\Windows\system32\net.exe" helpmsg 11
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:920
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 helpmsg 11
            4⤵
              PID:4128

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

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

        Filesize

        1.5MB

        MD5

        d3b1d0ba6d8bbec965f6d6885033708c

        SHA1

        9154356e9306c06eea5fe40a5b937c5203b3b593

        SHA256

        3323501deba48dc23d1b2cd50edd5360abbafd9d96266925d89b831416a6c557

        SHA512

        dfab7b1bc1daff2aa432b1ccc1e3125434a8612db7b3d4617005d153e57adcd08cc864ac154d00f089b9281701624cbeebef475be0d392220369347e6c5fb039

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

        Filesize

        1.1MB

        MD5

        3f40608da05e082e459b4a04ce5b087e

        SHA1

        4dfc76f1f854065caaf76c01842aa30a9fc48e88

        SHA256

        1d777437c6832bd737375864970dbb8c3fda0882749852cef66c8fbd20fdb890

        SHA512

        2653cbbc46a2c048b753dd0979299f621c085f66f7cfb3612a200fba47d2fbba6bbcedd8605726382ebfa551cbcecae026202ad54d58873bcff48c05912df28c

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

        Filesize

        569KB

        MD5

        dce6df68baffc8147836d4731dfd5bb0

        SHA1

        65d7223d10914a9cd4669c89f2d9afac51c8c62d

        SHA256

        7a7369e905a077ab8df8369f9bdcf3f825acd791dcb74b655042131a1e02dd66

        SHA512

        c788b7d6e06a6997470d4859aaf5bc16ef0afb9877cc54b157901a93f45550f193ed1a2c496aeba6425edab9cf9e4b3d08496c6e9b7851800f709798de9d7400

      • C:\Users\Admin\AppData\Local\Temp\is-6KKBJ.tmp\_isetup\_iscrypt.dll

        Filesize

        2KB

        MD5

        a69559718ab506675e907fe49deb71e9

        SHA1

        bc8f404ffdb1960b50c12ff9413c893b56f2e36f

        SHA256

        2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

        SHA512

        e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

      • C:\Users\Admin\AppData\Local\Temp\is-6KKBJ.tmp\_isetup\_isdecmp.dll

        Filesize

        19KB

        MD5

        3adaa386b671c2df3bae5b39dc093008

        SHA1

        067cf95fbdb922d81db58432c46930f86d23dded

        SHA256

        71cd2f5bc6e13b8349a7c98697c6d2e3fcdeea92699cedd591875bea869fae38

        SHA512

        bbe4187758d1a69f75a8cca6b3184e0c20cf8701b16531b55ed4987497934b3c9ef66ecd5e6b83c7357f69734f1c8301b9f82f0a024bb693b732a2d5760fd303

      • C:\Users\Admin\AppData\Local\Temp\is-RH7OP.tmp\93ad1fff986a06bd505e3a59c1128cc718fafb034a2a03a794afad41f2d9dd34.tmp

        Filesize

        687KB

        MD5

        f448d7f4b76e5c9c3a4eaff16a8b9b73

        SHA1

        31808f1ffa84c954376975b7cdb0007e6b762488

        SHA256

        7233b85eb0f8b3aa5cae3811d727aa8742fec4d1091c120a0fe15006f424cc49

        SHA512

        f8197458cd2764c0b852dac34f9bf361110a7dc86903024a97c7bcd3f77b148342bf45e3c2b60f6af8198ae3b83938dbaad5e007d71a0f88006f3a0618cf36f4

      • memory/2092-202-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/2092-209-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/2092-157-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/2092-199-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/2092-196-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/2092-193-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/2092-205-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/2092-183-0x00000000008F0000-0x000000000098E000-memory.dmp

        Filesize

        632KB

      • memory/2092-186-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/2092-190-0x00000000008F0000-0x000000000098E000-memory.dmp

        Filesize

        632KB

      • memory/2092-189-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/2092-162-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/2092-159-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/2092-166-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/2092-167-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/2092-170-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/2092-173-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/2092-176-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/2092-179-0x00000000008F0000-0x000000000098E000-memory.dmp

        Filesize

        632KB

      • memory/2092-180-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/4164-163-0x0000000002240000-0x0000000002241000-memory.dmp

        Filesize

        4KB

      • memory/4164-161-0x0000000000400000-0x00000000004BC000-memory.dmp

        Filesize

        752KB

      • memory/4164-7-0x0000000002240000-0x0000000002241000-memory.dmp

        Filesize

        4KB

      • memory/4500-155-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/4500-154-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/4500-152-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/4500-151-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/4864-2-0x0000000000400000-0x0000000000418000-memory.dmp

        Filesize

        96KB

      • memory/4864-160-0x0000000000400000-0x0000000000418000-memory.dmp

        Filesize

        96KB

      • memory/4864-0-0x0000000000400000-0x0000000000418000-memory.dmp

        Filesize

        96KB