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Analysis

  • max time kernel
    149s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-20240220-en
  • resource tags

    arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
  • submitted
    29/03/2024, 15:02

General

  • Target

    341e37a9516c9b21c4d353881dee71c15bb8372b427a5d514c2e1d4624744a5c.exe

  • Size

    84KB

  • MD5

    643728a4f0251aa53eae065f3ba727f9

  • SHA1

    0c2cad3f1694588662982b8fcb45885e3ce50713

  • SHA256

    341e37a9516c9b21c4d353881dee71c15bb8372b427a5d514c2e1d4624744a5c

  • SHA512

    fba3f94e7973f7d58fe4540f28b7254e9f4c36fc0dbb270baa6e0f4a561e24d7e8daa8cce73f7adbae95cc2b230050179be14c5ac8f87a6b9bf0553945070412

  • SSDEEP

    1536:AfgLdQAQfcfymNsL4p5nkjXut+Mm6Q498gQwRFbBijuz9YCxrfZQIUk04Xf:AftffjmNsL4p5nkjXut+MtQ498gtRDrD

Score
7/10

Malware Config

Signatures

  • Deletes itself 1 IoCs
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 1 IoCs
  • Enumerates connected drives 3 TTPs 21 IoCs

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

  • Drops file in Program Files directory 64 IoCs
  • Drops file in Windows directory 4 IoCs
  • Runs net.exe
  • Suspicious behavior: EnumeratesProcesses 10 IoCs
  • Suspicious use of WriteProcessMemory 22 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
      PID:1196
      • C:\Users\Admin\AppData\Local\Temp\341e37a9516c9b21c4d353881dee71c15bb8372b427a5d514c2e1d4624744a5c.exe
        "C:\Users\Admin\AppData\Local\Temp\341e37a9516c9b21c4d353881dee71c15bb8372b427a5d514c2e1d4624744a5c.exe"
        2⤵
        • Drops file in Windows directory
        • Suspicious use of WriteProcessMemory
        PID:2700
        • C:\Windows\SysWOW64\cmd.exe
          cmd /c C:\Users\Admin\AppData\Local\Temp\$$a25AA.bat
          3⤵
          • Deletes itself
          • Loads dropped DLL
          • Suspicious use of WriteProcessMemory
          PID:2508
          • C:\Users\Admin\AppData\Local\Temp\341e37a9516c9b21c4d353881dee71c15bb8372b427a5d514c2e1d4624744a5c.exe
            "C:\Users\Admin\AppData\Local\Temp\341e37a9516c9b21c4d353881dee71c15bb8372b427a5d514c2e1d4624744a5c.exe"
            4⤵
            • Executes dropped EXE
            PID:2516
        • C:\Windows\Logo1_.exe
          C:\Windows\Logo1_.exe
          3⤵
          • Executes dropped EXE
          • Enumerates connected drives
          • Drops file in Program Files directory
          • Drops file in Windows directory
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:2544
          • C:\Windows\SysWOW64\net.exe
            net stop "Kingsoft AntiVirus Service"
            4⤵
            • Suspicious use of WriteProcessMemory
            PID:2636
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 stop "Kingsoft AntiVirus Service"
              5⤵
                PID:2964

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

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      Downloads

      • C:\Program Files (x86)\Google\Update\1.3.36.151\GoogleUpdateCore.exe

        Filesize

        251KB

        MD5

        7bccc2687df85a1835e6bbcf1b5ebdd4

        SHA1

        1a925ae4a0c41080cd05c90996666142c6c02119

        SHA256

        feca718c189c33d8766c401d21b38e8eb079893a4a98b0384f43892918d11bde

        SHA512

        58d00e2e1d6d1c067f3dd7600f6e60efe543f431f537132bac83e35f09cf8f22d7c5db80f7ce8382714eb94cd3c7c5fd73374c03ce0a9bb62327a0cb77a2ec3a

      • C:\ProgramData\Package Cache\{ca67548a-5ebe-413a-b50c-4b9ceb6d66c6}\vcredist_x64.exe

        Filesize

        471KB

        MD5

        4cfdb20b04aa239d6f9e83084d5d0a77

        SHA1

        f22863e04cc1fd4435f785993ede165bd8245ac6

        SHA256

        30ed17ca6ae530e8bf002bcef6048f94dba4b3b10252308147031f5c86ace1b9

        SHA512

        35b4c2f68a7caa45f2bb14b168947e06831f358e191478a6659b49f30ca6f538dc910fe6067448d5d8af4cb8558825d70f94d4bd67709aee414b2be37d49be86

      • C:\Users\Admin\AppData\Local\Temp\$$a25AA.bat

        Filesize

        722B

        MD5

        9d2086ec7428d0cd0edb5fafceef7534

        SHA1

        c8557d35c1cf3b6d28f52c9e7b58719c6f533438

        SHA256

        e1d06c0f24db76ee696d2c5169df44788b25ffa463df41f4f2f4dfffbc583b55

        SHA512

        e38608d5598c66d2a9f9a8a29e131426607e9b2466d8cd260940547b5c1e56bea7c18f6554ade29ca565f8e874fd4cf2ef14b99a62e270bc5abfa022ae325a60

      • C:\Users\Admin\AppData\Local\Temp\341e37a9516c9b21c4d353881dee71c15bb8372b427a5d514c2e1d4624744a5c.exe

        Filesize

        58KB

        MD5

        7cf88ab9caf907ad8343eb90aa543812

        SHA1

        64e7c7a02968d9c0e6978dae303877091753dcb0

        SHA256

        6ed4924969f26ab0cf8119c3a15579314213bc6bf634d2e369b6082d6faceb4b

        SHA512

        e544b214b2ac2c7fdcac41664b335f3bbdea0dcb5e01913cc8be326f9daecae8524727894819fb6cf45e311b1c91de93e695e3a26c70903d51afbaa43e0ed08c

      • C:\Windows\Logo1_.exe

        Filesize

        26KB

        MD5

        f131c8a61871d776a2bd93bd9c68f965

        SHA1

        85a2d2377f7b90bb4387dcbbae3ad0dec87f8ada

        SHA256

        0bfaec6d73d24f0736ee92b9deba61082f08cdba8482866361fbb57acae7c3d4

        SHA512

        087e9f83e8a9b3c050de6e8fa4989bf614f23a515710f151b84a15f1444e1352b8ef1d7e4e2ae3bcae98bf7281c8597ed85ec9ea84da27651304577a0b7d32d7

      • F:\$RECYCLE.BIN\S-1-5-21-2721934792-624042501-2768869379-1000\_desktop.ini

        Filesize

        9B

        MD5

        9d515d16952bdb1cf51672ad091046bc

        SHA1

        5fe954c6d41499122182eb48cf6f9d203b9eae7c

        SHA256

        12ddf5d72be26a3f4fb46d905661e24bf30948454c9701f20e50436a238a25db

        SHA512

        d0f7522406355a837e55f5a99b6969ed4b0ccbc2e427b83a917eedffc37899b139c2b33ea73a90469a6045b3b71848bf97641528644a4a3f55d666223fa31d4b

      • memory/1196-33-0x00000000025B0000-0x00000000025B1000-memory.dmp

        Filesize

        4KB

      • memory/2516-28-0x00000000002C0000-0x00000000002D4000-memory.dmp

        Filesize

        80KB

      • memory/2516-30-0x0000000004C90000-0x0000000004CD0000-memory.dmp

        Filesize

        256KB

      • memory/2516-46-0x0000000004C90000-0x0000000004CD0000-memory.dmp

        Filesize

        256KB

      • memory/2516-31-0x0000000004C90000-0x0000000004CD0000-memory.dmp

        Filesize

        256KB

      • memory/2516-29-0x0000000074290000-0x000000007497E000-memory.dmp

        Filesize

        6.9MB

      • memory/2516-38-0x0000000074290000-0x000000007497E000-memory.dmp

        Filesize

        6.9MB

      • memory/2544-37-0x0000000000400000-0x0000000000434000-memory.dmp

        Filesize

        208KB

      • memory/2544-45-0x0000000000400000-0x0000000000434000-memory.dmp

        Filesize

        208KB

      • memory/2544-52-0x0000000000400000-0x0000000000434000-memory.dmp

        Filesize

        208KB

      • memory/2544-98-0x0000000000400000-0x0000000000434000-memory.dmp

        Filesize

        208KB

      • memory/2544-105-0x0000000000400000-0x0000000000434000-memory.dmp

        Filesize

        208KB

      • memory/2544-1857-0x0000000000400000-0x0000000000434000-memory.dmp

        Filesize

        208KB

      • memory/2544-3317-0x0000000000400000-0x0000000000434000-memory.dmp

        Filesize

        208KB

      • memory/2700-0-0x0000000000400000-0x0000000000434000-memory.dmp

        Filesize

        208KB

      • memory/2700-12-0x00000000002B0000-0x00000000002E4000-memory.dmp

        Filesize

        208KB

      • memory/2700-18-0x00000000002B0000-0x00000000002E4000-memory.dmp

        Filesize

        208KB

      • memory/2700-16-0x0000000000400000-0x0000000000434000-memory.dmp

        Filesize

        208KB