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Analysis

  • max time kernel
    144s
  • max time network
    143s
  • platform
    windows10-1703_x64
  • resource
    win10-20231020-en
  • resource tags

    arch:x64arch:x86image:win10-20231020-enlocale:en-usos:windows10-1703-x64system
  • submitted
    11/12/2023, 16:03

General

  • Target

    b6ba794a4db95c699db59430de2198b1b37d3bfe2849f2216bced09868ade0e9.exe

  • Size

    6.9MB

  • MD5

    8906fa2ec5cd7506bee6a7bd6c67f891

  • SHA1

    545a5ba9c1291d487c21dfdccb9b5fa8e03bbbe7

  • SHA256

    b6ba794a4db95c699db59430de2198b1b37d3bfe2849f2216bced09868ade0e9

  • SHA512

    54e17344597f0398575a8c77bc4ba4f9f3f22f331921e50b7f279c8d66140f346102e6d49afb8ee92cd388f8b7fc3f53499106a9bf2bea1985fdc5cde0c14e66

  • SSDEEP

    196608:JeusL5Sg97UrK5EvfjuiKsrGugWn7juD9k3Ozj:8Vsg95KnxLrGufn765k+zj

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\b6ba794a4db95c699db59430de2198b1b37d3bfe2849f2216bced09868ade0e9.exe
    "C:\Users\Admin\AppData\Local\Temp\b6ba794a4db95c699db59430de2198b1b37d3bfe2849f2216bced09868ade0e9.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:764
    • C:\Users\Admin\AppData\Local\Temp\is-8PRSC.tmp\b6ba794a4db95c699db59430de2198b1b37d3bfe2849f2216bced09868ade0e9.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-8PRSC.tmp\b6ba794a4db95c699db59430de2198b1b37d3bfe2849f2216bced09868ade0e9.tmp" /SL5="$600D0,6944675,68096,C:\Users\Admin\AppData\Local\Temp\b6ba794a4db95c699db59430de2198b1b37d3bfe2849f2216bced09868ade0e9.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops file in Program Files directory
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:5024
      • C:\Windows\SysWOW64\schtasks.exe
        "C:\Windows\system32\schtasks.exe" /Query
        3⤵
          PID:424
        • C:\Program Files (x86)\ConvertWMA\wmaconvert.exe
          "C:\Program Files (x86)\ConvertWMA\wmaconvert.exe" -i
          3⤵
          • Executes dropped EXE
          PID:5096
        • C:\Program Files (x86)\ConvertWMA\wmaconvert.exe
          "C:\Program Files (x86)\ConvertWMA\wmaconvert.exe" -s
          3⤵
          • Executes dropped EXE
          PID:5060
        • C:\Windows\SysWOW64\net.exe
          "C:\Windows\system32\net.exe" helpmsg 11
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:4288
    • C:\Windows\SysWOW64\net1.exe
      C:\Windows\system32\net1 helpmsg 11
      1⤵
        PID:4128

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

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

        Filesize

        373KB

        MD5

        c33300cb7b34e45f9d04fd7ffe5db5f6

        SHA1

        dd20530ee97aefe595c05878d4d7407b8aff9534

        SHA256

        c99c122e697c079a8d7723b1b853d7f491ca1b646ee1e5449f8e62c75b19240c

        SHA512

        b3188d75d6db6e47960b0dcb67a7a77d86faadbb2d34fa0846f05da3c0c3f2c1110cf734bbf9fd08f6dab625343b996a1cff3ddcfb1421db5ed38ed783e7a8f3

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

        Filesize

        299KB

        MD5

        1fb085cc6710ee2d0d25db0763af3851

        SHA1

        866343bdecdf252704968cbd15105f2b0f4ab77f

        SHA256

        95f222ac4f183dddc60d4824760512acb67acf6b63469dcac8d80fbe1ed63b59

        SHA512

        e8e34509c9c9f7f996af4140ce8b5bc0962567cee284001d072c26e8e33567280e0e76f7f56f441a038137ce3f497a8ca54a9004ed302228ea3de1c7ea4f0fa8

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

        Filesize

        112KB

        MD5

        297c9f59bdf649bce6e8c88bad76727e

        SHA1

        34a099051e2476626b9915283e24ecf8b2f530dc

        SHA256

        b8c3275d5228ceaf402e35e73ff3f9e5bca7e766a0c65f0f1a8c5a0cfd2c330d

        SHA512

        a16e43f6064c2de80473c2399bd30f4de4c15930d3367726a4c3835ee516c7307d2cabc18c4ae2b93d855166828c3d04827f10eb67caa6b3be456375c382d567

      • C:\Users\Admin\AppData\Local\Temp\is-8PRSC.tmp\b6ba794a4db95c699db59430de2198b1b37d3bfe2849f2216bced09868ade0e9.tmp

        Filesize

        546KB

        MD5

        8d7487830d37629dcc25406994819ee3

        SHA1

        52aa971c5535221c7e1bafc49b36cb1f31ec2ec9

        SHA256

        26516a737a8c61634bd0a600b56c563512d1584fc03b9ab184bf4b3682f7b2da

        SHA512

        4225c4dc476a2897fa0d734df1ed2714a85fb2b8d18ab3cdeed43537f825316a516df193a7d3e6a64a3fef5add7f589f931542618977b116978794463883a9b4

      • C:\Users\Admin\AppData\Local\Temp\is-8PRSC.tmp\b6ba794a4db95c699db59430de2198b1b37d3bfe2849f2216bced09868ade0e9.tmp

        Filesize

        291KB

        MD5

        0793f0fc0c830bb96044ed4517a18148

        SHA1

        2670fb59f8a852b23d34954d424a776a26e2e985

        SHA256

        bdd89c1b27fd6f6e1c2bec55ba0b5c2882245ea9c0ad6f397d95d69b73bc9114

        SHA512

        25124470429678aaa6e1e60039f461b35516fefe7ca877615ceb2f7b58fd9e3e5d4d9917fafed2bd3274ee060381c4f690f40e201d618a93af311ae1eea714ad

      • \Users\Admin\AppData\Local\Temp\is-I186O.tmp\_isetup\_iscrypt.dll

        Filesize

        2KB

        MD5

        a69559718ab506675e907fe49deb71e9

        SHA1

        bc8f404ffdb1960b50c12ff9413c893b56f2e36f

        SHA256

        2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

        SHA512

        e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

      • \Users\Admin\AppData\Local\Temp\is-I186O.tmp\_isetup\_isdecmp.dll

        Filesize

        19KB

        MD5

        3adaa386b671c2df3bae5b39dc093008

        SHA1

        067cf95fbdb922d81db58432c46930f86d23dded

        SHA256

        71cd2f5bc6e13b8349a7c98697c6d2e3fcdeea92699cedd591875bea869fae38

        SHA512

        bbe4187758d1a69f75a8cca6b3184e0c20cf8701b16531b55ed4987497934b3c9ef66ecd5e6b83c7357f69734f1c8301b9f82f0a024bb693b732a2d5760fd303

      • memory/764-159-0x0000000000400000-0x0000000000418000-memory.dmp

        Filesize

        96KB

      • memory/764-0-0x0000000000400000-0x0000000000418000-memory.dmp

        Filesize

        96KB

      • memory/764-2-0x0000000000400000-0x0000000000418000-memory.dmp

        Filesize

        96KB

      • memory/5024-10-0x00000000001F0000-0x00000000001F1000-memory.dmp

        Filesize

        4KB

      • memory/5024-162-0x00000000001F0000-0x00000000001F1000-memory.dmp

        Filesize

        4KB

      • memory/5024-160-0x0000000000400000-0x00000000004BC000-memory.dmp

        Filesize

        752KB

      • memory/5060-161-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/5060-179-0x0000000000850000-0x00000000008EE000-memory.dmp

        Filesize

        632KB

      • memory/5060-207-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/5060-203-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/5060-200-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/5060-165-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/5060-166-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/5060-169-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/5060-172-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/5060-175-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/5060-178-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/5060-158-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/5060-184-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/5060-187-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/5060-188-0x0000000000850000-0x00000000008EE000-memory.dmp

        Filesize

        632KB

      • memory/5060-191-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/5060-194-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/5060-197-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/5096-151-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/5096-152-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB

      • memory/5096-154-0x0000000000400000-0x00000000005CF000-memory.dmp

        Filesize

        1.8MB