Analysis

  • max time kernel
    159s
  • 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, 13:53

General

  • Target

    0ab22cae190feb36996cd37a8351174fc572fda9b1e2ed08aff4fca1c037b739.exe

  • Size

    6.9MB

  • MD5

    c0191cb144f38ca3d82768d7f4640904

  • SHA1

    2c1bd0f93567413be9bb76c71e81752af70eb0c3

  • SHA256

    0ab22cae190feb36996cd37a8351174fc572fda9b1e2ed08aff4fca1c037b739

  • SHA512

    e323c797188c50028653d397dc8a5f0620a30cd29b987d03ca06e7540ce3ce53c19a55c790367aa3bea18af047448a03f7402edfe9f6f78966a5fc0186cc6bc9

  • SSDEEP

    196608:xW0fKLtr95HARqIrmVY8S50UL8Kj8yTwHvWY3Nzj:xtO/hAPmVNyEWeNzj

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\0ab22cae190feb36996cd37a8351174fc572fda9b1e2ed08aff4fca1c037b739.exe
    "C:\Users\Admin\AppData\Local\Temp\0ab22cae190feb36996cd37a8351174fc572fda9b1e2ed08aff4fca1c037b739.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4572
    • C:\Users\Admin\AppData\Local\Temp\is-TOCTT.tmp\0ab22cae190feb36996cd37a8351174fc572fda9b1e2ed08aff4fca1c037b739.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-TOCTT.tmp\0ab22cae190feb36996cd37a8351174fc572fda9b1e2ed08aff4fca1c037b739.tmp" /SL5="$7011E,6973457,68096,C:\Users\Admin\AppData\Local\Temp\0ab22cae190feb36996cd37a8351174fc572fda9b1e2ed08aff4fca1c037b739.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops file in Program Files directory
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:540
      • C:\Windows\SysWOW64\schtasks.exe
        "C:\Windows\system32\schtasks.exe" /Query
        3⤵
          PID:2360
        • C:\Program Files (x86)\ConvertWMA\wmaconvert.exe
          "C:\Program Files (x86)\ConvertWMA\wmaconvert.exe" -i
          3⤵
          • Executes dropped EXE
          PID:5044
        • C:\Windows\SysWOW64\net.exe
          "C:\Windows\system32\net.exe" helpmsg 11
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:3284
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 helpmsg 11
            4⤵
              PID:3612
          • C:\Program Files (x86)\ConvertWMA\wmaconvert.exe
            "C:\Program Files (x86)\ConvertWMA\wmaconvert.exe" -s
            3⤵
            • Executes dropped EXE
            PID:3560

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

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

        Filesize

        1.8MB

        MD5

        11793f6b69b2df9823a26f0356c191da

        SHA1

        ee7d551f6bcdd993f338a73fbef8e4f2a7e072fd

        SHA256

        ee80b4359afed08948ef90984bb846e18ef2ba254253322d6a7d64b60654fb3a

        SHA512

        c482e23f88615c1ca6b44a097c909ccf763f1158c9bd1a8689c1a6590cbc2717f3dd0173a14b582076fe57d00ab50e900caae650a0f6f90d917215a843473b3d

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

        Filesize

        1.1MB

        MD5

        7b9b5a02010d49ccee39a04820502ef1

        SHA1

        a378ca2355f88bfd8845c25facb3389d1afef7f7

        SHA256

        a23830114eff1095e3e91a6048322e4b0a566657909dfee499c11124c9ba41cd

        SHA512

        f2abacb2f6ddde0eec08e2ec51d021ee1ac089586a276cb38360198852f5fec855a2ea86bea2c6371880a29664ef546abb7d759157e118c3406b97d227568368

      • C:\Users\Admin\AppData\Local\Temp\is-8K0GV.tmp\_isetup\_iscrypt.dll

        Filesize

        2KB

        MD5

        a69559718ab506675e907fe49deb71e9

        SHA1

        bc8f404ffdb1960b50c12ff9413c893b56f2e36f

        SHA256

        2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

        SHA512

        e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

      • C:\Users\Admin\AppData\Local\Temp\is-8K0GV.tmp\_isetup\_isdecmp.dll

        Filesize

        19KB

        MD5

        3adaa386b671c2df3bae5b39dc093008

        SHA1

        067cf95fbdb922d81db58432c46930f86d23dded

        SHA256

        71cd2f5bc6e13b8349a7c98697c6d2e3fcdeea92699cedd591875bea869fae38

        SHA512

        bbe4187758d1a69f75a8cca6b3184e0c20cf8701b16531b55ed4987497934b3c9ef66ecd5e6b83c7357f69734f1c8301b9f82f0a024bb693b732a2d5760fd303

      • C:\Users\Admin\AppData\Local\Temp\is-TOCTT.tmp\0ab22cae190feb36996cd37a8351174fc572fda9b1e2ed08aff4fca1c037b739.tmp

        Filesize

        687KB

        MD5

        f448d7f4b76e5c9c3a4eaff16a8b9b73

        SHA1

        31808f1ffa84c954376975b7cdb0007e6b762488

        SHA256

        7233b85eb0f8b3aa5cae3811d727aa8742fec4d1091c120a0fe15006f424cc49

        SHA512

        f8197458cd2764c0b852dac34f9bf361110a7dc86903024a97c7bcd3f77b148342bf45e3c2b60f6af8198ae3b83938dbaad5e007d71a0f88006f3a0618cf36f4

      • memory/540-164-0x0000000000660000-0x0000000000661000-memory.dmp

        Filesize

        4KB

      • memory/540-7-0x0000000000660000-0x0000000000661000-memory.dmp

        Filesize

        4KB

      • memory/540-161-0x0000000000400000-0x00000000004BC000-memory.dmp

        Filesize

        752KB

      • memory/3560-179-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/3560-191-0x00000000008A0000-0x000000000093E000-memory.dmp

        Filesize

        632KB

      • memory/3560-208-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/3560-205-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/3560-157-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/3560-159-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/3560-202-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/3560-198-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/3560-162-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/3560-195-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/3560-167-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/3560-168-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/3560-171-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/3560-173-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/3560-176-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/3560-180-0x00000000008A0000-0x000000000093E000-memory.dmp

        Filesize

        632KB

      • memory/3560-193-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/3560-185-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/3560-189-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/4572-0-0x0000000000400000-0x0000000000418000-memory.dmp

        Filesize

        96KB

      • memory/4572-2-0x0000000000400000-0x0000000000418000-memory.dmp

        Filesize

        96KB

      • memory/4572-160-0x0000000000400000-0x0000000000418000-memory.dmp

        Filesize

        96KB

      • memory/5044-153-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/5044-151-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/5044-152-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/5044-155-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB