Analysis

  • max time kernel
    156s
  • max time network
    151s
  • 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 06:57

General

  • Target

    16b2fdbbd5a7a8435b4694c4f4030ae0dc5d3e62fdab008db74c9c847e6a7896.exe

  • Size

    6.9MB

  • MD5

    390e6169d7481605d374ca030e644631

  • SHA1

    9101eec0df8fe13d4df405eb2a0a707dbbd91e8a

  • SHA256

    16b2fdbbd5a7a8435b4694c4f4030ae0dc5d3e62fdab008db74c9c847e6a7896

  • SHA512

    8d6b9aacfd8b2a0b65b5713cd0a3ce114bd3d1a19fd2af10c593682bd5caad1cac5aed69d920617e584372d3ef4e8f93b0a50dccf2085334d6fad05d261c6f96

  • SSDEEP

    196608:3H/2cOhoGEpX+jRFRvz29jgM7+3Utny3r/mvZO0agzj:ucOhoGE1ArRvqlgM7xtAT0Hzj

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\16b2fdbbd5a7a8435b4694c4f4030ae0dc5d3e62fdab008db74c9c847e6a7896.exe
    "C:\Users\Admin\AppData\Local\Temp\16b2fdbbd5a7a8435b4694c4f4030ae0dc5d3e62fdab008db74c9c847e6a7896.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:3252
    • C:\Users\Admin\AppData\Local\Temp\is-BK95C.tmp\16b2fdbbd5a7a8435b4694c4f4030ae0dc5d3e62fdab008db74c9c847e6a7896.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-BK95C.tmp\16b2fdbbd5a7a8435b4694c4f4030ae0dc5d3e62fdab008db74c9c847e6a7896.tmp" /SL5="$A006A,6982471,68096,C:\Users\Admin\AppData\Local\Temp\16b2fdbbd5a7a8435b4694c4f4030ae0dc5d3e62fdab008db74c9c847e6a7896.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops file in Program Files directory
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:4680
      • C:\Windows\SysWOW64\schtasks.exe
        "C:\Windows\system32\schtasks.exe" /Query
        3⤵
          PID:1364
        • C:\Program Files (x86)\WMAFormat\wmaformat.exe
          "C:\Program Files (x86)\WMAFormat\wmaformat.exe" -i
          3⤵
          • Executes dropped EXE
          PID:3660
        • C:\Program Files (x86)\WMAFormat\wmaformat.exe
          "C:\Program Files (x86)\WMAFormat\wmaformat.exe" -s
          3⤵
          • Executes dropped EXE
          PID:3576
        • C:\Windows\SysWOW64\net.exe
          "C:\Windows\system32\net.exe" helpmsg 11
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:3984
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 helpmsg 11
            4⤵
              PID:1816

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

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

        Filesize

        1.8MB

        MD5

        c343c906aaa2e2ac5b3ae9ab154c80a4

        SHA1

        b1ed930436a743821a403f3c185a222f41a2af44

        SHA256

        ea6a69b2b6f3893ac9963afcb168abc24e5c879ea1c600f6c54723564bfbe135

        SHA512

        df1ebb33e8675a5decd77cc66ba0befb7dad77442b5447009301123e868332a520dca4177b7db2fa9e39846b916daa2e77b172e238a251b80a40990931a94eb6

      • C:\Users\Admin\AppData\Local\Temp\is-BK95C.tmp\16b2fdbbd5a7a8435b4694c4f4030ae0dc5d3e62fdab008db74c9c847e6a7896.tmp

        Filesize

        687KB

        MD5

        f448d7f4b76e5c9c3a4eaff16a8b9b73

        SHA1

        31808f1ffa84c954376975b7cdb0007e6b762488

        SHA256

        7233b85eb0f8b3aa5cae3811d727aa8742fec4d1091c120a0fe15006f424cc49

        SHA512

        f8197458cd2764c0b852dac34f9bf361110a7dc86903024a97c7bcd3f77b148342bf45e3c2b60f6af8198ae3b83938dbaad5e007d71a0f88006f3a0618cf36f4

      • C:\Users\Admin\AppData\Local\Temp\is-DE9M8.tmp\_isetup\_iscrypt.dll

        Filesize

        2KB

        MD5

        a69559718ab506675e907fe49deb71e9

        SHA1

        bc8f404ffdb1960b50c12ff9413c893b56f2e36f

        SHA256

        2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

        SHA512

        e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

      • C:\Users\Admin\AppData\Local\Temp\is-DE9M8.tmp\_isetup\_isdecmp.dll

        Filesize

        19KB

        MD5

        3adaa386b671c2df3bae5b39dc093008

        SHA1

        067cf95fbdb922d81db58432c46930f86d23dded

        SHA256

        71cd2f5bc6e13b8349a7c98697c6d2e3fcdeea92699cedd591875bea869fae38

        SHA512

        bbe4187758d1a69f75a8cca6b3184e0c20cf8701b16531b55ed4987497934b3c9ef66ecd5e6b83c7357f69734f1c8301b9f82f0a024bb693b732a2d5760fd303

      • memory/3252-2-0x0000000000400000-0x0000000000418000-memory.dmp

        Filesize

        96KB

      • memory/3252-0-0x0000000000400000-0x0000000000418000-memory.dmp

        Filesize

        96KB

      • memory/3252-23-0x0000000000400000-0x0000000000418000-memory.dmp

        Filesize

        96KB

      • memory/3576-180-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/3576-171-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/3576-207-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/3576-203-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/3576-200-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/3576-197-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/3576-160-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/3576-194-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/3576-164-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/3576-167-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/3576-168-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/3576-192-0x0000000000880000-0x000000000091E000-memory.dmp

        Filesize

        632KB

      • memory/3576-174-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/3576-177-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/3576-190-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/3576-182-0x0000000000880000-0x000000000091E000-memory.dmp

        Filesize

        632KB

      • memory/3576-187-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/3660-157-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/3660-155-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/3660-154-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/3660-153-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/4680-7-0x00000000005E0000-0x00000000005E1000-memory.dmp

        Filesize

        4KB

      • memory/4680-151-0x0000000000400000-0x00000000004BC000-memory.dmp

        Filesize

        752KB

      • memory/4680-163-0x00000000005E0000-0x00000000005E1000-memory.dmp

        Filesize

        4KB