Analysis

  • max time kernel
    125s
  • max time network
    149s
  • 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 08:13

General

  • Target

    7a0d63c82699d06a025bd5f01623e2a4ce2e0b9222f143fed5ecff52d6681cbd.exe

  • Size

    6.9MB

  • MD5

    9ccfbb3aff4a794ebbe645299c180551

  • SHA1

    586ec23d55fd43848e213e71b12fd432fa26a8ea

  • SHA256

    7a0d63c82699d06a025bd5f01623e2a4ce2e0b9222f143fed5ecff52d6681cbd

  • SHA512

    d5f8cc3c1df7f104379e9db500ed818c1507bf2d91a9d5eba5e0e550f979e68c896fdec37e3833f6aba38a41626dbaf89e8ddb0c3ac1753c45f4c952fa4ac6e8

  • SSDEEP

    98304:eCtQAsI29jHcxWjRTp6azZzB8hi4ZoEiAmP+xhctqd60dVADjhSF1O8lw3kBL7l7:DstjRJ/4ZoSQQhtd6sWDlSrM0BLRrzj

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\7a0d63c82699d06a025bd5f01623e2a4ce2e0b9222f143fed5ecff52d6681cbd.exe
    "C:\Users\Admin\AppData\Local\Temp\7a0d63c82699d06a025bd5f01623e2a4ce2e0b9222f143fed5ecff52d6681cbd.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4924
    • C:\Users\Admin\AppData\Local\Temp\is-1OTE6.tmp\7a0d63c82699d06a025bd5f01623e2a4ce2e0b9222f143fed5ecff52d6681cbd.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-1OTE6.tmp\7a0d63c82699d06a025bd5f01623e2a4ce2e0b9222f143fed5ecff52d6681cbd.tmp" /SL5="$C004C,6990075,68096,C:\Users\Admin\AppData\Local\Temp\7a0d63c82699d06a025bd5f01623e2a4ce2e0b9222f143fed5ecff52d6681cbd.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops file in Program Files directory
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:1192
      • C:\Windows\SysWOW64\schtasks.exe
        "C:\Windows\system32\schtasks.exe" /Query
        3⤵
          PID:808
        • C:\Program Files (x86)\WMAFormat\wmaformat.exe
          "C:\Program Files (x86)\WMAFormat\wmaformat.exe" -i
          3⤵
          • Executes dropped EXE
          PID:4024
        • C:\Program Files (x86)\WMAFormat\wmaformat.exe
          "C:\Program Files (x86)\WMAFormat\wmaformat.exe" -s
          3⤵
          • Executes dropped EXE
          PID:1072
        • C:\Windows\SysWOW64\net.exe
          "C:\Windows\system32\net.exe" helpmsg 11
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:984
    • C:\Windows\SysWOW64\net1.exe
      C:\Windows\system32\net1 helpmsg 11
      1⤵
        PID:4284

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

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

        Filesize

        1.5MB

        MD5

        843254ef57a8a01bb560c351bf1f6dcb

        SHA1

        e9dc0e7b1d0c7d2611fbc45d9fc38258549b0117

        SHA256

        93b81cb33101fe7123a762287ed7e803ef9cdb3117f7b5a9140e48793e578e37

        SHA512

        73da8e95183db3df65ce336014a57eb1c11b3a874c48f16ef87fd9d5fab6375d9cd88127d7ce7e700aa4e226968ff7f8769672812b19f766fa725ced79a39c44

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

        Filesize

        1.0MB

        MD5

        b4665673f4a1409a5e1f78e81d1802d7

        SHA1

        01275c0639948f7712cfe77e41b9dc5ae43a67c1

        SHA256

        507ef2ef46ec5c8d56c06a2b53216789d195257ab9a2f71f14893a1ce309b55f

        SHA512

        e7d3718435b7ac9d1c8e06685e19f1b507870a73e794c314ba1dbc895cd867b059743c4c54c985c6571cf3581d6bc549b7295aa73256bbc1fe0481a37750e149

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

        Filesize

        128KB

        MD5

        550d2d95bffe6fc746cf79a4f8afe65d

        SHA1

        ae4664ee724fd4ff92dad9e65921f7fbb95d29eb

        SHA256

        513e5ac4aa22e3241dc7bdadddffba88926f972a963d29a597c53ddd5f506a6c

        SHA512

        b198b33ab819b780bb1967dadf42bc65fe09535e89a3e506629c8663acd7f9b0adb4359004361ffd21bc0b25b403f0e1bc15491dd4112348cf7bf1be5590a990

      • C:\Users\Admin\AppData\Local\Temp\is-1OTE6.tmp\7a0d63c82699d06a025bd5f01623e2a4ce2e0b9222f143fed5ecff52d6681cbd.tmp

        Filesize

        687KB

        MD5

        f448d7f4b76e5c9c3a4eaff16a8b9b73

        SHA1

        31808f1ffa84c954376975b7cdb0007e6b762488

        SHA256

        7233b85eb0f8b3aa5cae3811d727aa8742fec4d1091c120a0fe15006f424cc49

        SHA512

        f8197458cd2764c0b852dac34f9bf361110a7dc86903024a97c7bcd3f77b148342bf45e3c2b60f6af8198ae3b83938dbaad5e007d71a0f88006f3a0618cf36f4

      • C:\Users\Admin\AppData\Local\Temp\is-71MFJ.tmp\_isetup\_iscrypt.dll

        Filesize

        2KB

        MD5

        a69559718ab506675e907fe49deb71e9

        SHA1

        bc8f404ffdb1960b50c12ff9413c893b56f2e36f

        SHA256

        2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

        SHA512

        e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

      • C:\Users\Admin\AppData\Local\Temp\is-71MFJ.tmp\_isetup\_isdecmp.dll

        Filesize

        19KB

        MD5

        3adaa386b671c2df3bae5b39dc093008

        SHA1

        067cf95fbdb922d81db58432c46930f86d23dded

        SHA256

        71cd2f5bc6e13b8349a7c98697c6d2e3fcdeea92699cedd591875bea869fae38

        SHA512

        bbe4187758d1a69f75a8cca6b3184e0c20cf8701b16531b55ed4987497934b3c9ef66ecd5e6b83c7357f69734f1c8301b9f82f0a024bb693b732a2d5760fd303

      • memory/1072-179-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/1072-189-0x00000000008C0000-0x000000000095E000-memory.dmp

        Filesize

        632KB

      • memory/1072-208-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/1072-205-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/1072-202-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/1072-156-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/1072-198-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/1072-158-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/1072-195-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/1072-192-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/1072-161-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/1072-188-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/1072-165-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/1072-166-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/1072-169-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/1072-172-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/1072-175-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/1072-178-0x00000000008C0000-0x000000000095E000-memory.dmp

        Filesize

        632KB

      • memory/1072-185-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/1072-182-0x00000000008C0000-0x000000000095E000-memory.dmp

        Filesize

        632KB

      • memory/1192-162-0x00000000005D0000-0x00000000005D1000-memory.dmp

        Filesize

        4KB

      • memory/1192-160-0x0000000000400000-0x00000000004BC000-memory.dmp

        Filesize

        752KB

      • memory/1192-9-0x00000000005D0000-0x00000000005D1000-memory.dmp

        Filesize

        4KB

      • memory/4024-150-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/4024-153-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/4024-154-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/4024-151-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/4924-0-0x0000000000400000-0x0000000000418000-memory.dmp

        Filesize

        96KB

      • memory/4924-159-0x0000000000400000-0x0000000000418000-memory.dmp

        Filesize

        96KB