Analysis

  • max time kernel
    150s
  • max time network
    123s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    23-05-2024 10:18

General

  • Target

    f39b1a7b3dfe4a04e8ce9c39f890c6e270bf6ca3faa5ae4335b46c4bb3ae4fef.exe

  • Size

    393KB

  • MD5

    9e63e73f4ea770b5815adc2a7ee99ebc

  • SHA1

    07a84192aae8275297fd16888fe23cf7b28f520e

  • SHA256

    f39b1a7b3dfe4a04e8ce9c39f890c6e270bf6ca3faa5ae4335b46c4bb3ae4fef

  • SHA512

    906fbcf1d5eadd8dedfb1db7f592537840ddcf4da1db697344cc79f05c8eea2098a8cb8240f473f38f4d51dcf6b9a2548ca6671b309e0584d13e578fb74c552e

  • SSDEEP

    6144:O+aX3RP2zPVz7jUBs8hqcBCi6dbfra4erJlt9A+xX1oOAisEIWmGeNkfGuYF1moW:O+aiahVy41

Score
7/10

Malware Config

Signatures

  • Deletes itself 1 IoCs
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 1 IoCs
  • Reads user/profile data of web browsers 2 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
  • 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:1200
      • C:\Users\Admin\AppData\Local\Temp\f39b1a7b3dfe4a04e8ce9c39f890c6e270bf6ca3faa5ae4335b46c4bb3ae4fef.exe
        "C:\Users\Admin\AppData\Local\Temp\f39b1a7b3dfe4a04e8ce9c39f890c6e270bf6ca3faa5ae4335b46c4bb3ae4fef.exe"
        2⤵
        • Drops file in Windows directory
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of WriteProcessMemory
        PID:1412
        • C:\Windows\SysWOW64\net.exe
          net stop "Kingsoft AntiVirus Service"
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:1508
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 stop "Kingsoft AntiVirus Service"
            4⤵
              PID:2296
          • C:\Windows\SysWOW64\cmd.exe
            cmd /c C:\Users\Admin\AppData\Local\Temp\$$aAC56.bat
            3⤵
            • Deletes itself
            • Loads dropped DLL
            • Suspicious use of WriteProcessMemory
            PID:2776
            • C:\Users\Admin\AppData\Local\Temp\f39b1a7b3dfe4a04e8ce9c39f890c6e270bf6ca3faa5ae4335b46c4bb3ae4fef.exe
              "C:\Users\Admin\AppData\Local\Temp\f39b1a7b3dfe4a04e8ce9c39f890c6e270bf6ca3faa5ae4335b46c4bb3ae4fef.exe"
              4⤵
              • Executes dropped EXE
              PID:3040
          • 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:2652
            • C:\Windows\SysWOW64\net.exe
              net stop "Kingsoft AntiVirus Service"
              4⤵
              • Suspicious use of WriteProcessMemory
              PID:2752
              • C:\Windows\SysWOW64\net1.exe
                C:\Windows\system32\net1 stop "Kingsoft AntiVirus Service"
                5⤵
                  PID:2916
              • C:\Windows\SysWOW64\net.exe
                net stop "Kingsoft AntiVirus Service"
                4⤵
                • Suspicious use of WriteProcessMemory
                PID:2528
                • C:\Windows\SysWOW64\net1.exe
                  C:\Windows\system32\net1 stop "Kingsoft AntiVirus Service"
                  5⤵
                    PID:2596

          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

            258KB

            MD5

            9ac10f2289f81d00cb5315e30a25967d

            SHA1

            43f3ec8b12b8ef26c5e0151a50e708edd8a3e979

            SHA256

            a978211529b28a3b66408c32636b82ef4405121d57e90a911c60f3810be3c0cc

            SHA512

            211d2c4d98509e4b0df64c0b31331431486886ae40c106ca1af496a2573fcfce3737d3574f6f41e39b02cf35b67859c14e46d58b30cf59062f8b68ec76dc1a77

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

            Filesize

            478KB

            MD5

            f01e1e0718ca3110b117e544489e3839

            SHA1

            6c19ce81349add991c3a88926d586b3de6ff9548

            SHA256

            b044da00ae636042dc22870432b28488014098b7e01350031e82a361d45b588d

            SHA512

            ee9a34b33e30eed3ef7676c7c86c88f748886527fe61d2133a8f3365d11848de66b1c118ea4d3a05f97363d6dc829c4490e839e20a16847a651cc915b47b5a93

          • C:\Users\Admin\AppData\Local\Temp\$$aAC56.bat

            Filesize

            722B

            MD5

            f6e98ea7e5031bfb3d5c8565509386e3

            SHA1

            de4cb3347cd48dc0ca6a3a48d99d10e2d0159482

            SHA256

            8d8000a1a8d99320703c770c68b208ab6c016113c0d9033b34acdcf7fe4e56f8

            SHA512

            89fd7da58adf8ff0d5305f8d4f31318d8fc16e8abe0b4e90c0d2f1bfb52ddd87eb37a97d9ac58277b7ab740abb3cf86a557ab40a639f9c960a6e69d3fe64d968

          • C:\Users\Admin\AppData\Local\Temp\f39b1a7b3dfe4a04e8ce9c39f890c6e270bf6ca3faa5ae4335b46c4bb3ae4fef.exe.exe

            Filesize

            360KB

            MD5

            5fbd45261a2de3bb42f489e825a9a935

            SHA1

            ff388f6e9efe651ec62c4152c1739783e7899293

            SHA256

            9e63701598199d5c47217e23b44d0e3ec5d53f5419166b1b6c68a7e9e8fc47a4

            SHA512

            7f22b1995a07016adb342c551454d602bfbe511525139aee8581b62116608e9e278fd81c26382f1333c7eccded4474196e73c093bb5cbf8e8f203e865024c058

          • C:\Windows\Logo1_.exe

            Filesize

            33KB

            MD5

            beaa56a0e4764dd95329202a0a92e326

            SHA1

            1e18f4051244e4aa8eabbddc7001ffcdc2adc055

            SHA256

            02424a4ca6ac65d66c89b79493d30a0c54c46da6ec225ef5ae1c724913451a08

            SHA512

            fc65d6da1e1f112abbb37c5227823980d644b6436cec5d44a75de9e97ba9e709010fc6edb064c592ce931412612010c7254bc5eb6c4aec004510786525276e25

          • F:\$RECYCLE.BIN\S-1-5-21-330940541-141609230-1670313778-1000\_desktop.ini

            Filesize

            9B

            MD5

            31874817e0fb055be8d2c971c0e3bbde

            SHA1

            ee8a35d6a86cb6d13f354d67d912e194bb09c74b

            SHA256

            94de8b492bc2db9a9592f7c9433547eb7f80826ed67f48d2bb7e22db9d49f544

            SHA512

            55747c69ae50fa212576d095f60cf33b42e26789cf8c34fc5120a45b1988aae95f91d9e37cb17298c5ac5243b2e4c40e1d0e084ce7fe14bceb4ebb318c65c944

          • memory/1200-29-0x0000000002680000-0x0000000002681000-memory.dmp

            Filesize

            4KB

          • memory/1412-19-0x0000000000400000-0x000000000043F000-memory.dmp

            Filesize

            252KB

          • memory/1412-0-0x0000000000400000-0x000000000043F000-memory.dmp

            Filesize

            252KB

          • memory/1412-17-0x0000000000230000-0x000000000026F000-memory.dmp

            Filesize

            252KB

          • memory/1412-12-0x0000000000230000-0x000000000026F000-memory.dmp

            Filesize

            252KB

          • memory/2652-32-0x0000000000400000-0x000000000043F000-memory.dmp

            Filesize

            252KB

          • memory/2652-20-0x0000000000400000-0x000000000043F000-memory.dmp

            Filesize

            252KB

          • memory/2652-1836-0x0000000000400000-0x000000000043F000-memory.dmp

            Filesize

            252KB

          • memory/2652-3480-0x0000000000400000-0x000000000043F000-memory.dmp

            Filesize

            252KB

          • memory/2652-4081-0x0000000000400000-0x000000000043F000-memory.dmp

            Filesize

            252KB