Analysis

  • max time kernel
    146s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231130-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231130-enlocale:en-usos:windows10-2004-x64system
  • submitted
    11/12/2023, 12:21

General

  • Target

    8034c4d7c9d1115aa1cce3b790d18aeacab6179a0970dfcc0061f89a0527a99d.exe

  • Size

    6.9MB

  • MD5

    5907fe1830959f90c9fb2369cdcd3f55

  • SHA1

    39b41fe91c1e23f10c241c8c100016f579f4f1ba

  • SHA256

    8034c4d7c9d1115aa1cce3b790d18aeacab6179a0970dfcc0061f89a0527a99d

  • SHA512

    681c96d3d8a7619c364041ea4a438a28756f61b9e8f7b9b87a13263f38e4ec1b5903d7bfd544546dd37a640c20f1648340faa5b20d5203f7d3433f93688573f8

  • SSDEEP

    196608:7DoG3bFqjpLC0TSMLsn33HR83v9i8l7INzj:7DyNLCWZ2HS9iQ7INzj

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\8034c4d7c9d1115aa1cce3b790d18aeacab6179a0970dfcc0061f89a0527a99d.exe
    "C:\Users\Admin\AppData\Local\Temp\8034c4d7c9d1115aa1cce3b790d18aeacab6179a0970dfcc0061f89a0527a99d.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2488
    • C:\Users\Admin\AppData\Local\Temp\is-JJ49T.tmp\8034c4d7c9d1115aa1cce3b790d18aeacab6179a0970dfcc0061f89a0527a99d.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-JJ49T.tmp\8034c4d7c9d1115aa1cce3b790d18aeacab6179a0970dfcc0061f89a0527a99d.tmp" /SL5="$701CC,6971036,68096,C:\Users\Admin\AppData\Local\Temp\8034c4d7c9d1115aa1cce3b790d18aeacab6179a0970dfcc0061f89a0527a99d.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops file in Program Files directory
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:3896
      • C:\Windows\SysWOW64\schtasks.exe
        "C:\Windows\system32\schtasks.exe" /Query
        3⤵
          PID:2528
        • C:\Program Files (x86)\ConvertWMA\wmaconvert.exe
          "C:\Program Files (x86)\ConvertWMA\wmaconvert.exe" -i
          3⤵
          • Executes dropped EXE
          PID:4800
        • C:\Program Files (x86)\ConvertWMA\wmaconvert.exe
          "C:\Program Files (x86)\ConvertWMA\wmaconvert.exe" -s
          3⤵
          • Executes dropped EXE
          PID:3828
        • C:\Windows\SysWOW64\net.exe
          "C:\Windows\system32\net.exe" helpmsg 11
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:840
    • C:\Windows\SysWOW64\net1.exe
      C:\Windows\system32\net1 helpmsg 11
      1⤵
        PID:1668

      Network

            MITRE ATT&CK Enterprise v15

            Replay Monitor

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            Downloads

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

              Filesize

              609KB

              MD5

              a696027155c3bff8978a0bc8637f42c2

              SHA1

              8bceb43e88666d4fa6922109db94c71c8d628181

              SHA256

              14a4cb4baf11b63adee0ca975accfbcb165eb10f7a0f9fbeedf879e601c21cee

              SHA512

              bd0464eaecd647630329d86248cda4657a8ccaf7d4d88c7705ed447f325992e4dc53f0d9cb78129dfb12ffd6672c9c24ba1cea4d3bafccacd0183228e335a254

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

              Filesize

              506KB

              MD5

              fe0ff2154f7da9a812ca59e911774594

              SHA1

              e51767bcc66025a5a5fc7c08a8b9334e951d6f37

              SHA256

              790145ed028f7ed95547b07cfd12f5a71b11968e89f04916a587e97c530af5e6

              SHA512

              ae6fbdebc786b345d24ff877bcf061e390d0b0cd869e57872ab8136d6d9b216160f0f0e4e4956db7d28d182213d9492c11907ca28ed603f550d65a24e2489b8e

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

              Filesize

              267KB

              MD5

              48cc049f9f3422157a8070761ec2a329

              SHA1

              048baf4e11e94b5fa9343baa329b5b0d9cd3887c

              SHA256

              a69cd10446e65c5069f1789dac31f8858774b51d3de7242bc03302e3ddb58184

              SHA512

              e3e2ad3feb0dc25cca524bdcee24e35900f89dc32537f566abf498b5d32e5e5d1d920fe70817a819d65a30c3abee8039b24476589865bcd6dc83556364808301

            • C:\Users\Admin\AppData\Local\Temp\is-05OD2.tmp\_isetup\_iscrypt.dll

              Filesize

              2KB

              MD5

              a69559718ab506675e907fe49deb71e9

              SHA1

              bc8f404ffdb1960b50c12ff9413c893b56f2e36f

              SHA256

              2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

              SHA512

              e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

            • C:\Users\Admin\AppData\Local\Temp\is-05OD2.tmp\_isetup\_isdecmp.dll

              Filesize

              19KB

              MD5

              3adaa386b671c2df3bae5b39dc093008

              SHA1

              067cf95fbdb922d81db58432c46930f86d23dded

              SHA256

              71cd2f5bc6e13b8349a7c98697c6d2e3fcdeea92699cedd591875bea869fae38

              SHA512

              bbe4187758d1a69f75a8cca6b3184e0c20cf8701b16531b55ed4987497934b3c9ef66ecd5e6b83c7357f69734f1c8301b9f82f0a024bb693b732a2d5760fd303

            • C:\Users\Admin\AppData\Local\Temp\is-JJ49T.tmp\8034c4d7c9d1115aa1cce3b790d18aeacab6179a0970dfcc0061f89a0527a99d.tmp

              Filesize

              687KB

              MD5

              f448d7f4b76e5c9c3a4eaff16a8b9b73

              SHA1

              31808f1ffa84c954376975b7cdb0007e6b762488

              SHA256

              7233b85eb0f8b3aa5cae3811d727aa8742fec4d1091c120a0fe15006f424cc49

              SHA512

              f8197458cd2764c0b852dac34f9bf361110a7dc86903024a97c7bcd3f77b148342bf45e3c2b60f6af8198ae3b83938dbaad5e007d71a0f88006f3a0618cf36f4

            • memory/2488-2-0x0000000000400000-0x0000000000418000-memory.dmp

              Filesize

              96KB

            • memory/2488-0-0x0000000000400000-0x0000000000418000-memory.dmp

              Filesize

              96KB

            • memory/2488-159-0x0000000000400000-0x0000000000418000-memory.dmp

              Filesize

              96KB

            • memory/3828-178-0x0000000000400000-0x00000000005CF000-memory.dmp

              Filesize

              1.8MB

            • memory/3828-175-0x0000000000400000-0x00000000005CF000-memory.dmp

              Filesize

              1.8MB

            • memory/3828-208-0x0000000000400000-0x00000000005CF000-memory.dmp

              Filesize

              1.8MB

            • memory/3828-158-0x0000000000400000-0x00000000005CF000-memory.dmp

              Filesize

              1.8MB

            • memory/3828-205-0x0000000000400000-0x00000000005CF000-memory.dmp

              Filesize

              1.8MB

            • memory/3828-201-0x0000000000400000-0x00000000005CF000-memory.dmp

              Filesize

              1.8MB

            • memory/3828-198-0x0000000000400000-0x00000000005CF000-memory.dmp

              Filesize

              1.8MB

            • memory/3828-161-0x0000000000400000-0x00000000005CF000-memory.dmp

              Filesize

              1.8MB

            • memory/3828-195-0x0000000000400000-0x00000000005CF000-memory.dmp

              Filesize

              1.8MB

            • memory/3828-165-0x0000000000400000-0x00000000005CF000-memory.dmp

              Filesize

              1.8MB

            • memory/3828-166-0x0000000000400000-0x00000000005CF000-memory.dmp

              Filesize

              1.8MB

            • memory/3828-169-0x0000000000400000-0x00000000005CF000-memory.dmp

              Filesize

              1.8MB

            • memory/3828-172-0x0000000000400000-0x00000000005CF000-memory.dmp

              Filesize

              1.8MB

            • memory/3828-192-0x0000000000400000-0x00000000005CF000-memory.dmp

              Filesize

              1.8MB

            • memory/3828-179-0x0000000000940000-0x00000000009DE000-memory.dmp

              Filesize

              632KB

            • memory/3828-189-0x0000000000940000-0x00000000009DE000-memory.dmp

              Filesize

              632KB

            • memory/3828-180-0x0000000000940000-0x00000000009DE000-memory.dmp

              Filesize

              632KB

            • memory/3828-185-0x0000000000400000-0x00000000005CF000-memory.dmp

              Filesize

              1.8MB

            • memory/3828-188-0x0000000000400000-0x00000000005CF000-memory.dmp

              Filesize

              1.8MB

            • memory/3896-10-0x0000000000650000-0x0000000000651000-memory.dmp

              Filesize

              4KB

            • memory/3896-162-0x0000000000650000-0x0000000000651000-memory.dmp

              Filesize

              4KB

            • memory/3896-160-0x0000000000400000-0x00000000004BC000-memory.dmp

              Filesize

              752KB

            • memory/4800-154-0x0000000000400000-0x00000000005CF000-memory.dmp

              Filesize

              1.8MB

            • memory/4800-151-0x0000000000400000-0x00000000005CF000-memory.dmp

              Filesize

              1.8MB

            • memory/4800-155-0x0000000000400000-0x00000000005CF000-memory.dmp

              Filesize

              1.8MB

            • memory/4800-152-0x0000000000400000-0x00000000005CF000-memory.dmp

              Filesize

              1.8MB