Analysis

  • max time kernel
    150s
  • max time network
    121s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    13-03-2024 02:00

General

  • Target

    a9fd233dcd73094286ea754ba0d55a2f29fb2c288c510dc431a3238cc98bf18d.exe

  • Size

    484KB

  • MD5

    5b4e257698613e17472208fc5cae740a

  • SHA1

    27c2da5f032cfd23af05041cb28e7952ba37b38a

  • SHA256

    a9fd233dcd73094286ea754ba0d55a2f29fb2c288c510dc431a3238cc98bf18d

  • SHA512

    e0729ac3f5a4d73699f2663f81022b8f7e6253ce6ef5179048730601936ef62d3dfae69c268af7c07b603c05dcd6faf4bf012075f7e710a2e0fe172930007d82

  • SSDEEP

    6144:HVfjmNzz1gL5pRTMTTjMkId/BynSx7dEe6XwzRaktNP08NhKs39zo43fTtl1fay7:17+n1gL5pRTcAkS/3hzN8qE43fm78V

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:1176
      • C:\Users\Admin\AppData\Local\Temp\a9fd233dcd73094286ea754ba0d55a2f29fb2c288c510dc431a3238cc98bf18d.exe
        "C:\Users\Admin\AppData\Local\Temp\a9fd233dcd73094286ea754ba0d55a2f29fb2c288c510dc431a3238cc98bf18d.exe"
        2⤵
        • Drops file in Windows directory
        • Suspicious use of WriteProcessMemory
        PID:2492
        • C:\Windows\SysWOW64\cmd.exe
          cmd /c C:\Users\Admin\AppData\Local\Temp\$$a1FD0.bat
          3⤵
          • Deletes itself
          • Loads dropped DLL
          • Suspicious use of WriteProcessMemory
          PID:2516
          • C:\Users\Admin\AppData\Local\Temp\a9fd233dcd73094286ea754ba0d55a2f29fb2c288c510dc431a3238cc98bf18d.exe
            "C:\Users\Admin\AppData\Local\Temp\a9fd233dcd73094286ea754ba0d55a2f29fb2c288c510dc431a3238cc98bf18d.exe"
            4⤵
            • Executes dropped EXE
            PID:2552
        • 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:1936
          • C:\Windows\SysWOW64\net.exe
            net stop "Kingsoft AntiVirus Service"
            4⤵
            • Suspicious use of WriteProcessMemory
            PID:2676
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 stop "Kingsoft AntiVirus Service"
              5⤵
                PID:2620

      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

        5c2ffb619738d1d49fb8d897bccd0cc3

        SHA1

        b2c88e93cee67a2501c161fffd6232666d40ef83

        SHA256

        9319906b4f02cd7cf38eca9771fa64587e15dc6605de97a90a954b26d6b70a6d

        SHA512

        c98c4929f0f9085ba69eead52e292f7a70395ac3428a6fa90949c783a98a0e1f0522fab244e26edd598276be5dbfd687a2a59c9f653b9a5cbdaa15c4aa243067

      • 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\$$a1FD0.bat

        Filesize

        722B

        MD5

        e5f10d7e2d5acec9c6b96ee7b2c92f6a

        SHA1

        bc315f63d2e0a20fdb5e70c3015adfdc25b37483

        SHA256

        e06ff04e62e2a930013133ddca760e4de3526473a3b5361ea2b9ec07fbc9ed85

        SHA512

        1c7e3b84aacb8521079e04c55616dc550ad368e8b927a163dfdc6d36d0d2219dfc3360a8455d18c984278cf88a51dd34a3862f2c878b7b7deead5ebc05bf9aaf

      • C:\Users\Admin\AppData\Local\Temp\a9fd233dcd73094286ea754ba0d55a2f29fb2c288c510dc431a3238cc98bf18d.exe.exe

        Filesize

        458KB

        MD5

        619f7135621b50fd1900ff24aade1524

        SHA1

        6c7ea8bbd435163ae3945cbef30ef6b9872a4591

        SHA256

        344f076bb1211cb02eca9e5ed2c0ce59bcf74ccbc749ec611538fa14ecb9aad2

        SHA512

        2c7293c084d09bc2e3ae2d066dd7b331c810d9e2eeca8b236a8e87fdeb18e877b948747d3491fcaff245816507685250bd35f984c67a43b29b0ae31ecb2bd628

      • C:\Windows\rundl132.exe

        Filesize

        26KB

        MD5

        ef3f8e388ba2c9c2c650029413ed7735

        SHA1

        c1a463b7c33c0de1dcb14bdbacf49fbd0a82b3a2

        SHA256

        1d987e0ab9167e7509e4af33e9e2f9c87871e2081f58efb1ed3f9a5f5fb466eb

        SHA512

        81cf123a5bfb905003df54d000cd000af5ed545d184a86a9eeb312044096949aafe73e942d4e07496a3f1f8a21b1270616ef1b963bd71dc767f95524f4ef4dbe

      • F:\$RECYCLE.BIN\S-1-5-21-2297530677-1229052932-2803917579-1000\_desktop.ini

        Filesize

        9B

        MD5

        6304f6cd23949a0e203abd81fc93bcfd

        SHA1

        260299dcdd7b9af6298e036322e7493d3598ab44

        SHA256

        6e249dd60655637cf4a7f940b41cfc3b70dc36b986a37babad9180d29d22adb8

        SHA512

        ce9d77f19554bdfdf7bc99adc9a9cdbc79c3d30f901b9f47ffb8e2d737c7a3fceb059de56993f9092c4ba0276b9d6ebc035fd48298dc62e11a9ef05bb9e00ab5

      • memory/1176-29-0x0000000002E20000-0x0000000002E21000-memory.dmp

        Filesize

        4KB

      • memory/1936-38-0x0000000000400000-0x0000000000434000-memory.dmp

        Filesize

        208KB

      • memory/1936-31-0x0000000000400000-0x0000000000434000-memory.dmp

        Filesize

        208KB

      • memory/1936-21-0x0000000000400000-0x0000000000434000-memory.dmp

        Filesize

        208KB

      • memory/1936-44-0x0000000000400000-0x0000000000434000-memory.dmp

        Filesize

        208KB

      • memory/1936-90-0x0000000000400000-0x0000000000434000-memory.dmp

        Filesize

        208KB

      • memory/1936-96-0x0000000000400000-0x0000000000434000-memory.dmp

        Filesize

        208KB

      • memory/1936-700-0x0000000000400000-0x0000000000434000-memory.dmp

        Filesize

        208KB

      • memory/1936-1849-0x0000000000400000-0x0000000000434000-memory.dmp

        Filesize

        208KB

      • memory/1936-2399-0x0000000000400000-0x0000000000434000-memory.dmp

        Filesize

        208KB

      • memory/1936-3309-0x0000000000400000-0x0000000000434000-memory.dmp

        Filesize

        208KB

      • memory/2492-16-0x0000000000220000-0x0000000000254000-memory.dmp

        Filesize

        208KB

      • memory/2492-15-0x0000000000400000-0x0000000000434000-memory.dmp

        Filesize

        208KB

      • memory/2492-0-0x0000000000400000-0x0000000000434000-memory.dmp

        Filesize

        208KB