Analysis

  • max time kernel
    145s
  • max time network
    142s
  • 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 13:01

General

  • Target

    7376414a4f7fe1f6110cb87817dfad10c6fe81ca89262681ff739d73c2859be8.exe

  • Size

    6.9MB

  • MD5

    c72a45ea1c4e65f976e71801c1721b24

  • SHA1

    84bcdf504d6cc52b4f3f4b326b067ee96866d038

  • SHA256

    7376414a4f7fe1f6110cb87817dfad10c6fe81ca89262681ff739d73c2859be8

  • SHA512

    92e9830ead4b34a5bee0e9d4ec39a8ca2f5ee41aeeaa077ccd56a9d863216189a86fe88c1c653fe68c2edb1b7d63c638139165dfe0c2b70a2e413a51e7a28952

  • SSDEEP

    196608:CeusL5Sg97UrK5EvfjuiKsrGugWn7juD9k3Ozj:pVsg95KnxLrGufn765k+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\7376414a4f7fe1f6110cb87817dfad10c6fe81ca89262681ff739d73c2859be8.exe
    "C:\Users\Admin\AppData\Local\Temp\7376414a4f7fe1f6110cb87817dfad10c6fe81ca89262681ff739d73c2859be8.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4056
    • C:\Users\Admin\AppData\Local\Temp\is-24J1C.tmp\7376414a4f7fe1f6110cb87817dfad10c6fe81ca89262681ff739d73c2859be8.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-24J1C.tmp\7376414a4f7fe1f6110cb87817dfad10c6fe81ca89262681ff739d73c2859be8.tmp" /SL5="$7019A,6944675,68096,C:\Users\Admin\AppData\Local\Temp\7376414a4f7fe1f6110cb87817dfad10c6fe81ca89262681ff739d73c2859be8.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops file in Program Files directory
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:4820
      • C:\Windows\SysWOW64\schtasks.exe
        "C:\Windows\system32\schtasks.exe" /Query
        3⤵
          PID:3988
        • C:\Program Files (x86)\ConvertWMA\wmaconvert.exe
          "C:\Program Files (x86)\ConvertWMA\wmaconvert.exe" -i
          3⤵
          • Executes dropped EXE
          PID:780
        • C:\Windows\SysWOW64\net.exe
          "C:\Windows\system32\net.exe" helpmsg 11
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:996
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 helpmsg 11
            4⤵
              PID:1656
          • C:\Program Files (x86)\ConvertWMA\wmaconvert.exe
            "C:\Program Files (x86)\ConvertWMA\wmaconvert.exe" -s
            3⤵
            • Executes dropped EXE
            PID:4804

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

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

        Filesize

        1.8MB

        MD5

        fe9e9d10c240fabd1e08b138e19b2da4

        SHA1

        f65c6f1509625234372f820c9027a8f864489fd3

        SHA256

        ed07307aa6b42a4170865e4f5ac1aa9d2aafe055044e8b97b386f910fc5ff03c

        SHA512

        993d5f4bef3846b3af002179aef461cc555b22e5c2c3e16f94983934b4fef7808f248a771620f538e0a416ce1d8d96f720d373d828dad779194df2fa88c3bb2a

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

        Filesize

        1.7MB

        MD5

        b3992452ed8519a488d32f35250c81ae

        SHA1

        750e962a8b60ae3b706572925e0ba71a06e3cda8

        SHA256

        64417148517c9da70da28dad304b8b1ca576214fab8410da577d2d049d3595e0

        SHA512

        d2a68d84751c9518f8be3b9ef04757959d1fc503f544e330e1ea05ff496f37d69a8898c7d95b105ca17200fbb6070ce6fd099ccce3f16be7b67409ed8b250838

      • C:\Users\Admin\AppData\Local\Temp\is-24J1C.tmp\7376414a4f7fe1f6110cb87817dfad10c6fe81ca89262681ff739d73c2859be8.tmp

        Filesize

        687KB

        MD5

        f448d7f4b76e5c9c3a4eaff16a8b9b73

        SHA1

        31808f1ffa84c954376975b7cdb0007e6b762488

        SHA256

        7233b85eb0f8b3aa5cae3811d727aa8742fec4d1091c120a0fe15006f424cc49

        SHA512

        f8197458cd2764c0b852dac34f9bf361110a7dc86903024a97c7bcd3f77b148342bf45e3c2b60f6af8198ae3b83938dbaad5e007d71a0f88006f3a0618cf36f4

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

        Filesize

        2KB

        MD5

        a69559718ab506675e907fe49deb71e9

        SHA1

        bc8f404ffdb1960b50c12ff9413c893b56f2e36f

        SHA256

        2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

        SHA512

        e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

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

        Filesize

        19KB

        MD5

        3adaa386b671c2df3bae5b39dc093008

        SHA1

        067cf95fbdb922d81db58432c46930f86d23dded

        SHA256

        71cd2f5bc6e13b8349a7c98697c6d2e3fcdeea92699cedd591875bea869fae38

        SHA512

        bbe4187758d1a69f75a8cca6b3184e0c20cf8701b16531b55ed4987497934b3c9ef66ecd5e6b83c7357f69734f1c8301b9f82f0a024bb693b732a2d5760fd303

      • memory/780-151-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/780-152-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/780-155-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/780-154-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/4056-159-0x0000000000400000-0x0000000000418000-memory.dmp

        Filesize

        96KB

      • memory/4056-2-0x0000000000400000-0x0000000000418000-memory.dmp

        Filesize

        96KB

      • memory/4056-0-0x0000000000400000-0x0000000000418000-memory.dmp

        Filesize

        96KB

      • memory/4804-182-0x0000000000740000-0x00000000007DE000-memory.dmp

        Filesize

        632KB

      • memory/4804-179-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/4804-208-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/4804-161-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/4804-205-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/4804-165-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/4804-166-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/4804-169-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/4804-172-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/4804-175-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/4804-178-0x0000000000740000-0x00000000007DE000-memory.dmp

        Filesize

        632KB

      • memory/4804-158-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/4804-202-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/4804-185-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/4804-188-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/4804-189-0x0000000000740000-0x00000000007DE000-memory.dmp

        Filesize

        632KB

      • memory/4804-192-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/4804-195-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/4804-198-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/4820-7-0x00000000001F0000-0x00000000001F1000-memory.dmp

        Filesize

        4KB

      • memory/4820-162-0x00000000001F0000-0x00000000001F1000-memory.dmp

        Filesize

        4KB

      • memory/4820-160-0x0000000000400000-0x00000000004BC000-memory.dmp

        Filesize

        752KB