Analysis

  • max time kernel
    119s
  • max time network
    20s
  • platform
    windows7_x64
  • resource
    win7-20241010-en
  • resource tags

    arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
  • submitted
    19/01/2025, 18:58

General

  • Target

    b723df1978bb396a2446ddb583949a977d2cc5bdec5c9c1c4e773c022c46fa52N.exe

  • Size

    101KB

  • MD5

    85a23eaf0aa2cae3e1c28d835a4e22f0

  • SHA1

    2aa0a585a0c153801da2f855cc61e6fdab7c0830

  • SHA256

    b723df1978bb396a2446ddb583949a977d2cc5bdec5c9c1c4e773c022c46fa52

  • SHA512

    dca59d457d45e5434a08a3737b085561ff872c38c3eae3e74a09029bc4a37505ebc3737ed7b86316e05dcf8f9b2cba04be9f79b78d6ec1e224231582f924c593

  • SSDEEP

    1536:/Bzsrz8VuJlMXaDuiN+WtwXaa8NPI9j+RedcP01ic4Brg:/Bm8ulMXaKdWtwXwKRj1EBrg

Malware Config

Signatures

  • Deletes itself 1 IoCs
  • Drops startup file 2 IoCs
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 2 IoCs
  • Reads user/profile data of web browsers 3 TTPs

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

  • 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
  • System Location Discovery: System Language Discovery 1 TTPs 9 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Runs net.exe
  • Suspicious behavior: EnumeratesProcesses 43 IoCs
  • Suspicious use of WriteProcessMemory 38 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
      PID:1212
      • C:\Users\Admin\AppData\Local\Temp\b723df1978bb396a2446ddb583949a977d2cc5bdec5c9c1c4e773c022c46fa52N.exe
        "C:\Users\Admin\AppData\Local\Temp\b723df1978bb396a2446ddb583949a977d2cc5bdec5c9c1c4e773c022c46fa52N.exe"
        2⤵
        • Drops file in Windows directory
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of WriteProcessMemory
        PID:2044
        • C:\Windows\SysWOW64\net.exe
          net stop "Kingsoft AntiVirus Service"
          3⤵
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:2224
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 stop "Kingsoft AntiVirus Service"
            4⤵
            • System Location Discovery: System Language Discovery
            PID:3000
        • C:\Windows\SysWOW64\cmd.exe
          cmd /c C:\Users\Admin\AppData\Local\Temp\$$a9A5C.bat
          3⤵
          • Deletes itself
          • Loads dropped DLL
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:2036
          • C:\Users\Admin\AppData\Local\Temp\b723df1978bb396a2446ddb583949a977d2cc5bdec5c9c1c4e773c022c46fa52N.exe
            "C:\Users\Admin\AppData\Local\Temp\b723df1978bb396a2446ddb583949a977d2cc5bdec5c9c1c4e773c022c46fa52N.exe"
            4⤵
            • Executes dropped EXE
            PID:2816
        • C:\Windows\Logo1_.exe
          C:\Windows\Logo1_.exe
          3⤵
          • Drops startup file
          • Executes dropped EXE
          • Enumerates connected drives
          • Drops file in Program Files directory
          • Drops file in Windows directory
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:2020
          • C:\Windows\SysWOW64\net.exe
            net stop "Kingsoft AntiVirus Service"
            4⤵
            • System Location Discovery: System Language Discovery
            • Suspicious use of WriteProcessMemory
            PID:3060
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 stop "Kingsoft AntiVirus Service"
              5⤵
              • System Location Discovery: System Language Discovery
              PID:2480
          • C:\Windows\SysWOW64\net.exe
            net stop "Kingsoft AntiVirus Service"
            4⤵
            • System Location Discovery: System Language Discovery
            • Suspicious use of WriteProcessMemory
            PID:2980
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 stop "Kingsoft AntiVirus Service"
              5⤵
              • System Location Discovery: System Language Discovery
              PID:2944

    Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

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          Downloads

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

            Filesize

            478KB

            MD5

            5264aab343fc1f53c29d1065346d0010

            SHA1

            db43bc0b28b4ada0c5635db50fd0b64410ab76ad

            SHA256

            d33d56847b353c8207a43aa01cc75527328ebf4bba669e90e29266d1b6fb57dd

            SHA512

            bb4ba1f7c5cae56cef564dd99f1a1fd3e2c656f8004f689a22ea641d886cbb3a19dde3dce5be4cf8cee4ce190170fd8c5390cb9c7c40ae54109559685119a958

          • C:\Users\Admin\AppData\Local\Temp\$$a9A5C.bat

            Filesize

            728B

            MD5

            0c098695531b0c0a4a28efe29a14a59c

            SHA1

            a38adc10ccbbf99d3207477db09f3a35cc547055

            SHA256

            dfbfcc7bf7ea3baab215b2fdb78fc4c710df4ca358c7a5ee5043b0e27813782a

            SHA512

            27f6e7e19e9e01f672add021630978e827e48d8a9bef4a3777a7efd65c84550098b95f86d7b52ce2f99b4316f9dcad3fe5a5182103fd690d61457c578772e031

          • C:\Users\Admin\AppData\Local\Temp\b723df1978bb396a2446ddb583949a977d2cc5bdec5c9c1c4e773c022c46fa52N.exe.exe

            Filesize

            68KB

            MD5

            48335cfbe6a9bdaa2492ca1320b70a3a

            SHA1

            6d3c3d659e3718a0b56f52c9d4386d55d7672b97

            SHA256

            4ec34f1d893e8cc02f669fb5eb329bbcc5374bd7e7284e8fd86fbc29d2ffeb4d

            SHA512

            9eaf3b380449ab1d2b4b6371336fc71f6a43eee0295de012d0859e7f3b80a87f9d8316b0e65d4ca450630ee17b95c64e79e594bfe27fb3965917b0c5bc2d1b58

          • C:\Windows\Logo1_.exe

            Filesize

            33KB

            MD5

            c553ef4162b4d62dba0f2ddd0b295a33

            SHA1

            71537c2536f7a1c17d798a29e95c35bee6437372

            SHA256

            c6b2a32cd1a1c9da4da4adfafdef3b1930c965bc36397f252228b4a5e5a9d822

            SHA512

            48ec749bed872ffb573eb7b5d653cee33272cdeb655f3c084a8382b48007e42326673439f0e51863eb828122a980ff85a4ab7a417c77d6bb47dc2e630d13f7b7

          • F:\$RECYCLE.BIN\S-1-5-21-3692679935-4019334568-335155002-1000\_desktop.ini

            Filesize

            9B

            MD5

            5e0a31b83de656e964e3bafc02e48b44

            SHA1

            4ff07638865e3ef91f142612ff2d06a78ce7052a

            SHA256

            3b6f5f8fd2c76049e871847db6282f5567c112f9a793d6571a4bc740c493ba08

            SHA512

            ab728fe3451c71175babdf039c987e3b91d5e48a33e2e41eb9d9e021bbf484d5e701076b8e09e1370ee8267e6fbc7141f3af7a065d44d3d8509d3c55e1ab8efd

          • memory/1212-29-0x0000000002B20000-0x0000000002B21000-memory.dmp

            Filesize

            4KB

          • memory/2020-34-0x0000000000400000-0x0000000000440000-memory.dmp

            Filesize

            256KB

          • memory/2020-1326-0x0000000000400000-0x0000000000440000-memory.dmp

            Filesize

            256KB

          • memory/2020-3586-0x0000000000400000-0x0000000000440000-memory.dmp

            Filesize

            256KB

          • memory/2020-4131-0x0000000000400000-0x0000000000440000-memory.dmp

            Filesize

            256KB

          • memory/2044-16-0x00000000003B0000-0x00000000003F0000-memory.dmp

            Filesize

            256KB

          • memory/2044-19-0x0000000000400000-0x0000000000440000-memory.dmp

            Filesize

            256KB

          • memory/2044-0-0x0000000000400000-0x0000000000440000-memory.dmp

            Filesize

            256KB

          • memory/2044-12-0x00000000003B0000-0x00000000003F0000-memory.dmp

            Filesize

            256KB