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Analysis

  • max time kernel
    120s
  • max time network
    121s
  • platform
    windows7_x64
  • resource
    win7-20231129-en
  • resource tags

    arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
  • submitted
    31/12/2023, 06:49

General

  • Target

    2c36e0c04e62c8fb4abc889efd743c02.exe

  • Size

    512KB

  • MD5

    2c36e0c04e62c8fb4abc889efd743c02

  • SHA1

    d1c320844326e786b1da04c977b233341be1da6b

  • SHA256

    3718c09380d531cabdfad67dc6a1c71c2b0b6135dd42a7c0e924dd70b273168d

  • SHA512

    7ed944fc3da73dd3991f3820e26b9373c40def31db647faaf3d9631fc55c916e62c15463606a44904ff2a5a78aa656b0c69e5744d7d31d42572c46cd94d2866b

  • SSDEEP

    6144:1VY0W0sVVZ/dkq5BCoFaJ2i5Lf24C07N5OvSLTUF6pQxI6Upe2cBnTu19bcodj6W:1gDhdkq5BCoC5LfWSLTUQpr2Zu19Qm57

Malware Config

Signatures

  • Modifies visibility of file extensions in Explorer 2 TTPs 1 IoCs
  • Modifies visiblity of hidden/system files in Explorer 2 TTPs 1 IoCs
  • Windows security bypass 2 TTPs 5 IoCs
  • Disables RegEdit via registry modification 1 IoCs
  • Executes dropped EXE 5 IoCs
  • Loads dropped DLL 5 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Windows security modification 2 TTPs 6 IoCs
  • Adds Run key to start application 2 TTPs 3 IoCs
  • Enumerates connected drives 3 TTPs 64 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Modifies WinLogon 2 TTPs 2 IoCs
  • AutoIT Executable 11 IoCs

    AutoIT scripts compiled to PE executables.

  • Drops file in System32 directory 9 IoCs
  • Drops file in Program Files directory 14 IoCs
  • Drops file in Windows directory 5 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Office loads VBA resources, possible macro or embedded object present
  • Modifies Internet Explorer settings 1 TTPs 31 IoCs
  • Modifies registry class 64 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of FindShellTrayWindow 18 IoCs
  • Suspicious use of SendNotifyMessage 18 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 28 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2c36e0c04e62c8fb4abc889efd743c02.exe
    "C:\Users\Admin\AppData\Local\Temp\2c36e0c04e62c8fb4abc889efd743c02.exe"
    1⤵
    • Loads dropped DLL
    • Drops file in System32 directory
    • Drops file in Windows directory
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of WriteProcessMemory
    PID:2320
    • C:\Windows\SysWOW64\rdpmmytehh.exe
      rdpmmytehh.exe
      2⤵
      • Modifies visibility of file extensions in Explorer
      • Modifies visiblity of hidden/system files in Explorer
      • Windows security bypass
      • Disables RegEdit via registry modification
      • Executes dropped EXE
      • Loads dropped DLL
      • Windows security modification
      • Enumerates connected drives
      • Modifies WinLogon
      • Drops file in System32 directory
      • Modifies registry class
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      • Suspicious use of WriteProcessMemory
      PID:2172
      • C:\Windows\SysWOW64\hqxqnvgk.exe
        C:\Windows\system32\hqxqnvgk.exe
        3⤵
        • Executes dropped EXE
        • Enumerates connected drives
        • Drops file in Program Files directory
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:2352
    • C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE
      "C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE" /n "C:\Windows\mydoc.rtf"
      2⤵
      • Drops file in Windows directory
      • Modifies Internet Explorer settings
      • Modifies registry class
      • Suspicious behavior: AddClipboardFormatListener
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2712
      • C:\Windows\splwow64.exe
        C:\Windows\splwow64.exe 12288
        3⤵
          PID:2152
      • C:\Windows\SysWOW64\prjajemidbhlo.exe
        prjajemidbhlo.exe
        2⤵
        • Executes dropped EXE
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:2680
      • C:\Windows\SysWOW64\hqxqnvgk.exe
        hqxqnvgk.exe
        2⤵
        • Executes dropped EXE
        • Enumerates connected drives
        • Drops file in Program Files directory
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:3064
      • C:\Windows\SysWOW64\yaygawdizfmjxfb.exe
        yaygawdizfmjxfb.exe
        2⤵
        • Executes dropped EXE
        • Adds Run key to start application
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:2740

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\Program Files (x86)\Microsoft Office\Office14\1033\PROTTPLV.DOC.exe

      Filesize

      512KB

      MD5

      b3f30fac4cf88301cfc57c53f1343080

      SHA1

      a36f162f7492e3ee4bd18e43691cfd9ae194425d

      SHA256

      e2542682cdc6147fe6bdfd7ef76346b9b5f077ffec7f11a862a92b9c9dadb2f6

      SHA512

      1be603d6c2baee48068e98ca46e2734c4a46a7d4b0a278ec842314d840b23a8dcd4193bbd766c48ae89e8e316d176ca271c3aa04ed6d771391fcfded516bf94a

    • C:\Windows\SysWOW64\yaygawdizfmjxfb.exe

      Filesize

      512KB

      MD5

      5421cb1cbba708b4ea0c07a64e19ffed

      SHA1

      9667419b526c83905b2456a5cc3b17cb320ba48c

      SHA256

      d3ff18b4c4808393aaed293e30733cb03eab694e34439d82e77b5cc9e9c16cad

      SHA512

      f89a18405de14bb7d0da267798935e952f29d6161e007c7f298976e9099ab72217eeca283032818d8cf764efe4bc1c9e86c722b1c192e5050fff5e1f8e1d075d

    • C:\Windows\SysWOW64\yaygawdizfmjxfb.exe

      Filesize

      92KB

      MD5

      6662b185f19fbf697c56a25c92de7961

      SHA1

      0df0c0df0de3724258df2549c583e3c934aca726

      SHA256

      c11edb9e97848e20319fba876d9382c7193f68323eff1f7ed805bb04303bdc86

      SHA512

      c6e2cb83f68a63ca299dae843d2697d41dab8b565fb4005755b0d255b388779b6c1dad97375009c995f0a3d2e0acb4cc820090ca5dc24ee11e1a3de5b1a4921f

    • C:\Windows\SysWOW64\yaygawdizfmjxfb.exe

      Filesize

      512KB

      MD5

      b7b10aa6becdf29324a8985fddf2225b

      SHA1

      e6a2078764f11456ac7fe580f8a867e0a5b43be0

      SHA256

      d3486a04071152e60fb18ca1b7bb902d5fe9fab0c12100a8dc7cecc7f6c54516

      SHA512

      29af7482e1f19f680bcc51261a527dc63e86c84ed4cf5ba1073aae9cdd255da05166e990207b77a9e9e107a4197663540bd51934df63ae1842f3b3c8c8142d2f

    • C:\Windows\mydoc.rtf

      Filesize

      223B

      MD5

      06604e5941c126e2e7be02c5cd9f62ec

      SHA1

      4eb9fdf8ff4e1e539236002bd363b82c8f8930e1

      SHA256

      85f2405d1f67021a3206faa26f6887932fea71aea070df3efb2902902e2d03e2

      SHA512

      803f5f2fddbf29fef34de184eb35c2311b7a694740983ca10b54ef252dd26cda4987458d2569f441c6dedc3478bea12b45bfd3566f1b256504a0869ad3829df7

    • \Windows\SysWOW64\hqxqnvgk.exe

      Filesize

      256KB

      MD5

      a6912481eb039ab8ce8e65eefa5ac57b

      SHA1

      5859f27fff5ebd524ebd24615ab41f86fba46f02

      SHA256

      660f3560eeba127d97ee2570ed1c2dacd357f42f6136589ecedd2aa3004dccb4

      SHA512

      8f3bd0fa20db122cacaaeb9cba2d755db7a1d51371da190ea9337429d514ebde3336cd55f2db82358e06fe8f7906f50cb1799cb494875e3e38f478640697db40

    • \Windows\SysWOW64\hqxqnvgk.exe

      Filesize

      512KB

      MD5

      d474d12bbd6db1a2ad42b70a7ec1a618

      SHA1

      975687aee9e64f79ec8dfdda96169709d3b7da08

      SHA256

      ea89c99b1f17c5365567e9ba3b25715417475d98e6e35b4e013384cad7d82692

      SHA512

      79f00909a8fb023eb85de79f613b52ce57d3cbc48ee8c62c1305be970edfb1f7812ca4dab4bfd93bdf49cd8ac345b791ba20e36f2ec9b3f079337c30b7ea2a3f

    • \Windows\SysWOW64\prjajemidbhlo.exe

      Filesize

      512KB

      MD5

      d2fc6a877dd24651c9c96f9b905493e4

      SHA1

      a5e401e98300f0daa19a9b63a55d6748b6f711af

      SHA256

      e03f5a877b8343070ae0323b725102f2767add81d8b2365b3a9bd9de57966b4d

      SHA512

      182beea7d3ed7c3bac248522694eec8f8023e380fcddd64b888a9f50c5a2a067b0a9d94b9c0a3c4ee45df2abf44a6dccd19f86f095ee3b8a8828c92efb576bea

    • \Windows\SysWOW64\rdpmmytehh.exe

      Filesize

      512KB

      MD5

      e26e69472fe1564016a535e89b1c8ae2

      SHA1

      35888680c80b95910bfd680de14e7e79cd33bec7

      SHA256

      5f20df18df85f423143647257d2ba6b7f73abf98d2a07f2c94a56fa2d92ecc10

      SHA512

      9c5e181a7f7dfa2952f1a80c4d10c77a7baa66f4c76dbbdc62d2e1325f9600f0ea1d517a696f990773b70774078d8ed7f100d6e58061d036c65c793db5f68390

    • \Windows\SysWOW64\yaygawdizfmjxfb.exe

      Filesize

      193KB

      MD5

      a31008e1bf36948c5790f46d6a5b364b

      SHA1

      53e1bd64f986806dc72e3343c87b65f8afed897a

      SHA256

      0fe3f5e6e9138cafa7435072ebda5646c80f646add2cc306b55a468cd10c4886

      SHA512

      1474fa94a858054307521aa2fc7d0880d9ea131693643bf113304ee32d9a7b731a14668d2a2944bcc7e8b7644408bd98ac2bb7f305b0d74447cc13630fa63538

    • memory/2320-0-0x0000000000400000-0x0000000000496000-memory.dmp

      Filesize

      600KB

    • memory/2712-45-0x000000002F581000-0x000000002F582000-memory.dmp

      Filesize

      4KB

    • memory/2712-46-0x000000005FFF0000-0x0000000060000000-memory.dmp

      Filesize

      64KB

    • memory/2712-47-0x0000000070B0D000-0x0000000070B18000-memory.dmp

      Filesize

      44KB

    • memory/2712-76-0x0000000070B0D000-0x0000000070B18000-memory.dmp

      Filesize

      44KB

    • memory/2712-97-0x000000005FFF0000-0x0000000060000000-memory.dmp

      Filesize

      64KB