Analysis

  • max time kernel
    141s
  • max time network
    143s
  • platform
    windows10-1703_x64
  • resource
    win10-20231129-en
  • resource tags

    arch:x64arch:x86image:win10-20231129-enlocale:en-usos:windows10-1703-x64system
  • submitted
    11/12/2023, 07:54

General

  • Target

    994e8fffe3e1fc18e901fc434c310a283ccbd3f72df5b6b32b3b83b1ac708aac.exe

  • Size

    6.9MB

  • MD5

    31813cfaaa70991cb3a43b873e344f95

  • SHA1

    e7147339f4d061f9b72da4c14ba928a99f2d7dd3

  • SHA256

    994e8fffe3e1fc18e901fc434c310a283ccbd3f72df5b6b32b3b83b1ac708aac

  • SHA512

    3f832216d1b274793b68af7f888b7953c4b8653b74f355eba430662b98191afe9e22907f65c5dbc964b34528dfe41eb18f9006b51ecc90c13ade38746307cdde

  • SSDEEP

    196608:RRW8Bq+q3WGhRQY914E1DF+V3bm/LCGNq3eUeKP3gdVfzj:RQeqbhPK4DFY4CtOUYVfzj

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\994e8fffe3e1fc18e901fc434c310a283ccbd3f72df5b6b32b3b83b1ac708aac.exe
    "C:\Users\Admin\AppData\Local\Temp\994e8fffe3e1fc18e901fc434c310a283ccbd3f72df5b6b32b3b83b1ac708aac.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4428
    • C:\Users\Admin\AppData\Local\Temp\is-9PV9S.tmp\994e8fffe3e1fc18e901fc434c310a283ccbd3f72df5b6b32b3b83b1ac708aac.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-9PV9S.tmp\994e8fffe3e1fc18e901fc434c310a283ccbd3f72df5b6b32b3b83b1ac708aac.tmp" /SL5="$50218,6953145,68096,C:\Users\Admin\AppData\Local\Temp\994e8fffe3e1fc18e901fc434c310a283ccbd3f72df5b6b32b3b83b1ac708aac.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops file in Program Files directory
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:2792
      • C:\Windows\SysWOW64\schtasks.exe
        "C:\Windows\system32\schtasks.exe" /Query
        3⤵
          PID:756
        • C:\Program Files (x86)\WMAFormat\wmaformat.exe
          "C:\Program Files (x86)\WMAFormat\wmaformat.exe" -i
          3⤵
          • Executes dropped EXE
          PID:1964
        • C:\Windows\SysWOW64\net.exe
          "C:\Windows\system32\net.exe" helpmsg 11
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:1056
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 helpmsg 11
            4⤵
              PID:956
          • C:\Program Files (x86)\WMAFormat\wmaformat.exe
            "C:\Program Files (x86)\WMAFormat\wmaformat.exe" -s
            3⤵
            • Executes dropped EXE
            PID:1696

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

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

        Filesize

        1.1MB

        MD5

        d31857743f1edd26f7a934521b6af342

        SHA1

        7eea59ea34cfea10948b2457aa5db6aef229a444

        SHA256

        0fcfc52c504fe29866a2b9a6e03fbf253e83c42ef14af10226f826f376e389ef

        SHA512

        2bc6b4f3904f8e1c97980163dd806d4741ae94cb0fe8bf79db3f3fcc0fb8fbf9e33701a2c49f44f4ec8aa029753bff065acdceb0fe38ff596f1b7eab7b940856

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

        Filesize

        485KB

        MD5

        01a70d379edd5a910737c9b0590c66cb

        SHA1

        ab6bfaf6e4ad633e15d799f235edbd12bf0f5a0a

        SHA256

        c88fbf04459587c81c57e0a4f932bc8b19dedfd5ae1268a064d0e17b38f4f954

        SHA512

        817beeae2aed26896e3817cedcb2d5d517cc90ff0af1c02240272a051288ec7b62213f814d81c0c49d79650f67d0150f4b08aa5a6d552b2d900f201b5d15d71a

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

        Filesize

        484KB

        MD5

        f0a2a4aa9ebec9dfc31f5f6aac78abea

        SHA1

        a6cd0f5ccb49968ea50c19bea65e2a008a11a60c

        SHA256

        da6c5aa220fe9b4b133f79fae8ea87cc25a84299bd65623008ad057f5ab401d8

        SHA512

        3aac4ee8a01e75b43e78bfcf497ea078756523e4879f752365d543137991aa19439759e4928e49fc99acef5ae92f890c591e0828bf63fc1440db064e31dfcb86

      • C:\Users\Admin\AppData\Local\Temp\is-9PV9S.tmp\994e8fffe3e1fc18e901fc434c310a283ccbd3f72df5b6b32b3b83b1ac708aac.tmp

        Filesize

        687KB

        MD5

        f448d7f4b76e5c9c3a4eaff16a8b9b73

        SHA1

        31808f1ffa84c954376975b7cdb0007e6b762488

        SHA256

        7233b85eb0f8b3aa5cae3811d727aa8742fec4d1091c120a0fe15006f424cc49

        SHA512

        f8197458cd2764c0b852dac34f9bf361110a7dc86903024a97c7bcd3f77b148342bf45e3c2b60f6af8198ae3b83938dbaad5e007d71a0f88006f3a0618cf36f4

      • \Users\Admin\AppData\Local\Temp\is-7AJH9.tmp\_isetup\_iscrypt.dll

        Filesize

        2KB

        MD5

        a69559718ab506675e907fe49deb71e9

        SHA1

        bc8f404ffdb1960b50c12ff9413c893b56f2e36f

        SHA256

        2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

        SHA512

        e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

      • \Users\Admin\AppData\Local\Temp\is-7AJH9.tmp\_isetup\_isdecmp.dll

        Filesize

        19KB

        MD5

        3adaa386b671c2df3bae5b39dc093008

        SHA1

        067cf95fbdb922d81db58432c46930f86d23dded

        SHA256

        71cd2f5bc6e13b8349a7c98697c6d2e3fcdeea92699cedd591875bea869fae38

        SHA512

        bbe4187758d1a69f75a8cca6b3184e0c20cf8701b16531b55ed4987497934b3c9ef66ecd5e6b83c7357f69734f1c8301b9f82f0a024bb693b732a2d5760fd303

      • memory/1696-156-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/1696-190-0x0000000000840000-0x00000000008DE000-memory.dmp

        Filesize

        632KB

      • memory/1696-202-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/1696-199-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/1696-209-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/1696-196-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/1696-183-0x0000000000840000-0x00000000008DE000-memory.dmp

        Filesize

        632KB

      • memory/1696-158-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/1696-193-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/1696-205-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/1696-161-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/1696-189-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/1696-186-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/1696-166-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/1696-167-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/1696-170-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/1696-173-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/1696-176-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/1696-179-0x0000000000840000-0x00000000008DE000-memory.dmp

        Filesize

        632KB

      • memory/1696-180-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/1964-153-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/1964-165-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/1964-154-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/1964-151-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/1964-150-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/2792-162-0x00000000001F0000-0x00000000001F1000-memory.dmp

        Filesize

        4KB

      • memory/2792-160-0x0000000000400000-0x00000000004BC000-memory.dmp

        Filesize

        752KB

      • memory/2792-6-0x00000000001F0000-0x00000000001F1000-memory.dmp

        Filesize

        4KB

      • memory/4428-159-0x0000000000400000-0x0000000000418000-memory.dmp

        Filesize

        96KB

      • memory/4428-0-0x0000000000400000-0x0000000000418000-memory.dmp

        Filesize

        96KB