Analysis

  • max time kernel
    146s
  • max time network
    152s
  • 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, 14:12

General

  • Target

    07fbbef7b371cbb276ca28c8b13d6e430161ac3e86472a20c12649d13e0a9283.exe

  • Size

    6.9MB

  • MD5

    9d76d2439beb67b52acdea26b8f9413f

  • SHA1

    aa4c96c9477a4dea5fa1f218637402369f470f5a

  • SHA256

    07fbbef7b371cbb276ca28c8b13d6e430161ac3e86472a20c12649d13e0a9283

  • SHA512

    d7ffc4429df226b6afa402b1676c7662bd4cc1f08f537d2e23acbeb6694e8ea3828876a81373f0e6a85d7f0b0dd95193e6a5c91ab99d18548bcd741738a30d5b

  • SSDEEP

    196608:EeusL5Sg97UrK5EvfjuiKsrGugWn7juD9k3Ozj:/Vsg95KnxLrGufn765k+zj

Score
7/10

Malware Config

Signatures

  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 3 IoCs
  • Unexpected DNS network traffic destination 3 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\07fbbef7b371cbb276ca28c8b13d6e430161ac3e86472a20c12649d13e0a9283.exe
    "C:\Users\Admin\AppData\Local\Temp\07fbbef7b371cbb276ca28c8b13d6e430161ac3e86472a20c12649d13e0a9283.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:716
    • C:\Users\Admin\AppData\Local\Temp\is-M8DNV.tmp\07fbbef7b371cbb276ca28c8b13d6e430161ac3e86472a20c12649d13e0a9283.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-M8DNV.tmp\07fbbef7b371cbb276ca28c8b13d6e430161ac3e86472a20c12649d13e0a9283.tmp" /SL5="$501F6,6944675,68096,C:\Users\Admin\AppData\Local\Temp\07fbbef7b371cbb276ca28c8b13d6e430161ac3e86472a20c12649d13e0a9283.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops file in Program Files directory
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:1404
      • C:\Program Files (x86)\ConvertWMA\wmaconvert.exe
        "C:\Program Files (x86)\ConvertWMA\wmaconvert.exe" -s
        3⤵
        • Executes dropped EXE
        PID:4292
      • C:\Windows\SysWOW64\net.exe
        "C:\Windows\system32\net.exe" helpmsg 11
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:4548
      • C:\Program Files (x86)\ConvertWMA\wmaconvert.exe
        "C:\Program Files (x86)\ConvertWMA\wmaconvert.exe" -i
        3⤵
        • Executes dropped EXE
        PID:1204
      • C:\Windows\SysWOW64\schtasks.exe
        "C:\Windows\system32\schtasks.exe" /Query
        3⤵
          PID:2432
    • C:\Windows\SysWOW64\net1.exe
      C:\Windows\system32\net1 helpmsg 11
      1⤵
        PID:936

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

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

        Filesize

        207KB

        MD5

        5cac5b549e248bc147b29ab31bd29893

        SHA1

        0ee73404c2de57fc41405c9476e163c56e1fdf24

        SHA256

        501435174cf9fca03fd8f4c5ca1cc3fc366f5845f3f84228ad0bbb1e97f56b5e

        SHA512

        32af51f9da7a082de1942eab27f3b429e02a139cb0ef53f793b483be0fea1aff8917c1782ba37ea185d0792f0439126b456945cbec8662f4104b3f35d3396d54

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

        Filesize

        284KB

        MD5

        27c6a812a90c636917a90aca7536f988

        SHA1

        69c7d1451223db208e47fa96e49eef8c4fa5eb0a

        SHA256

        1174956a7078c5c62071cad68c4beceab63ed48802eed9625bba12c85e3b8a4e

        SHA512

        3e887573574b7ce5f9591a38d3b52911b4582c666e2f032d17c346a505e498191451251bf381627424bb0002a031f55caa795382dca16feb5b2df0a50f866540

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

        Filesize

        257KB

        MD5

        ac28cc8f6524cf7d5931db51503b4fd4

        SHA1

        498d7a53d8bb2df31b866c8d7e843ecde7c3f4b7

        SHA256

        06c7860d826a1c97277d8f35331945906dbdc8f909615f2b74cb278a2c30ee35

        SHA512

        e0c9b8a5484cd553f9d408cfbd84deac1b8947514d977ff4010309227d0ae5b29a0f5f8bd5744e94cc60d4268dbf5f89268e7da5f731eafb188a08769d94eeda

      • C:\Users\Admin\AppData\Local\Temp\is-M8DNV.tmp\07fbbef7b371cbb276ca28c8b13d6e430161ac3e86472a20c12649d13e0a9283.tmp

        Filesize

        45KB

        MD5

        af4991ece92b52d0e9a9a593ee75802a

        SHA1

        6198984a62c56d3e86f61b0f5575a3ccbb8a3b60

        SHA256

        16dc8fb4b0e45a5303bf80aa6cae410c05b8c0b837a3d2fef958fb9b2fd84c4c

        SHA512

        e54167cc768f77fa97dae3f2fc1ad6c4d25ec24133257f481b84886ab0fb1332e5f7851d2bf408647fba9c5af65a565c137b68824ba330639cde79c69f68b0b8

      • C:\Users\Admin\AppData\Local\Temp\is-M8DNV.tmp\07fbbef7b371cbb276ca28c8b13d6e430161ac3e86472a20c12649d13e0a9283.tmp

        Filesize

        118KB

        MD5

        f5d9bef0bbc9559471afa815018b4ee8

        SHA1

        96e518f80ef47cb40e5ecaa0b2836cb4e515ce65

        SHA256

        98ff20300a16989bdbde34a3440fb741e557ec8214b0658de35ad8ab481b3114

        SHA512

        dcc8ccf49d3d3a7edfd2e276c382bb9b6653de6f81c99eda621a71f7fdd3c2ec6d18b8f92a65aeabc1d7a9a7f4d342dddd9747a035f477d7c414c09212bdddce

      • \Users\Admin\AppData\Local\Temp\is-4IPRI.tmp\_isetup\_iscrypt.dll

        Filesize

        2KB

        MD5

        a69559718ab506675e907fe49deb71e9

        SHA1

        bc8f404ffdb1960b50c12ff9413c893b56f2e36f

        SHA256

        2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

        SHA512

        e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

      • \Users\Admin\AppData\Local\Temp\is-4IPRI.tmp\_isetup\_isdecmp.dll

        Filesize

        19KB

        MD5

        3adaa386b671c2df3bae5b39dc093008

        SHA1

        067cf95fbdb922d81db58432c46930f86d23dded

        SHA256

        71cd2f5bc6e13b8349a7c98697c6d2e3fcdeea92699cedd591875bea869fae38

        SHA512

        bbe4187758d1a69f75a8cca6b3184e0c20cf8701b16531b55ed4987497934b3c9ef66ecd5e6b83c7357f69734f1c8301b9f82f0a024bb693b732a2d5760fd303

      • memory/716-0-0x0000000000400000-0x0000000000418000-memory.dmp

        Filesize

        96KB

      • memory/716-2-0x0000000000400000-0x0000000000418000-memory.dmp

        Filesize

        96KB

      • memory/716-160-0x0000000000400000-0x0000000000418000-memory.dmp

        Filesize

        96KB

      • memory/1204-151-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/1204-152-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/1204-154-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/1204-155-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/1404-163-0x00000000005D0000-0x00000000005D1000-memory.dmp

        Filesize

        4KB

      • memory/1404-13-0x00000000005D0000-0x00000000005D1000-memory.dmp

        Filesize

        4KB

      • memory/1404-161-0x0000000000400000-0x00000000004BC000-memory.dmp

        Filesize

        752KB

      • memory/4292-162-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/4292-182-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/4292-158-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/4292-166-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/4292-167-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/4292-170-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/4292-173-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/4292-176-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/4292-179-0x0000000000880000-0x000000000091E000-memory.dmp

        Filesize

        632KB

      • memory/4292-159-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/4292-183-0x0000000000880000-0x000000000091E000-memory.dmp

        Filesize

        632KB

      • memory/4292-186-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/4292-189-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/4292-190-0x0000000000880000-0x000000000091E000-memory.dmp

        Filesize

        632KB

      • memory/4292-193-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/4292-196-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/4292-199-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/4292-202-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/4292-205-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/4292-208-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB