Analysis

  • max time kernel
    151s
  • max time network
    127s
  • platform
    windows7_x64
  • resource
    win7-20231215-en
  • resource tags

    arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
  • submitted
    05-01-2024 18:50

General

  • Target

    83889fe248efc28953e990c521f1318902a936556e2b8952b4c6e7e9dc08b704.exe

  • Size

    66KB

  • MD5

    bf8ec633c850b0ee8c95f32af9c2a377

  • SHA1

    9de8159c4eb498a137b76cfc7e6e68666868c861

  • SHA256

    83889fe248efc28953e990c521f1318902a936556e2b8952b4c6e7e9dc08b704

  • SHA512

    1a1f1b5b50b59889c0ebd23c1f45d94ba89d4b909fa452435a1e46f6ffd1ef2c360644c6fc813098e9109f309264d3de52ca38ccaebe1f50da19570b50fd89fe

  • SSDEEP

    1536:hxDacx1aeg1vjrI9U/xvyyZ/MF0Vz5gpEaDoc:hMf9kU0k/W0VzBaDP

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:1184
      • C:\Users\Admin\AppData\Local\Temp\83889fe248efc28953e990c521f1318902a936556e2b8952b4c6e7e9dc08b704.exe
        "C:\Users\Admin\AppData\Local\Temp\83889fe248efc28953e990c521f1318902a936556e2b8952b4c6e7e9dc08b704.exe"
        2⤵
        • Drops file in Windows directory
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of WriteProcessMemory
        PID:2164
        • C:\Windows\SysWOW64\net.exe
          net stop "Kingsoft AntiVirus Service"
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:1632
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 stop "Kingsoft AntiVirus Service"
            4⤵
              PID:1736
          • C:\Windows\SysWOW64\cmd.exe
            cmd /c C:\Users\Admin\AppData\Local\Temp\$$a52B2.bat
            3⤵
            • Deletes itself
            • Loads dropped DLL
            • Suspicious use of WriteProcessMemory
            PID:2688
            • C:\Users\Admin\AppData\Local\Temp\83889fe248efc28953e990c521f1318902a936556e2b8952b4c6e7e9dc08b704.exe
              "C:\Users\Admin\AppData\Local\Temp\83889fe248efc28953e990c521f1318902a936556e2b8952b4c6e7e9dc08b704.exe"
              4⤵
              • Executes dropped EXE
              PID:3004
          • 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:2788
            • C:\Windows\SysWOW64\net.exe
              net stop "Kingsoft AntiVirus Service"
              4⤵
              • Suspicious use of WriteProcessMemory
              PID:2708
              • C:\Windows\SysWOW64\net1.exe
                C:\Windows\system32\net1 stop "Kingsoft AntiVirus Service"
                5⤵
                  PID:2568
              • C:\Windows\SysWOW64\net.exe
                net stop "Kingsoft AntiVirus Service"
                4⤵
                • Suspicious use of WriteProcessMemory
                PID:2588
                • C:\Windows\SysWOW64\net1.exe
                  C:\Windows\system32\net1 stop "Kingsoft AntiVirus Service"
                  5⤵
                    PID:2756

          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

            d3adc69a0af918de8ca779119dc3824e

            SHA1

            1acd37dbe349ee094f20adedeead47187d449876

            SHA256

            331366057a460595eea4cd12de73bd9e2fcc6127487fc6a070b1d1c056700f9f

            SHA512

            346c88bf50e019ff7ebe812584dedba2b1dd13ac02e58f75c0e6c3834daf9c87000bf4f1bba0d2075edfaa24413cc11decf9dcddb05dcc7d9c72294186f1e733

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

            Filesize

            478KB

            MD5

            44f2a0b82d8247e1cd5a12a40841f9a8

            SHA1

            f451bd8ba9098bb674624169aa40f0371ba67924

            SHA256

            056311169bf6ff9bf378a311dbd3c48697ccce39bedac8cb9ddb7da01384127d

            SHA512

            bd5f7bf6b83c70bd03416a4944f62fdafbcb7907c3321432c831e189e9d4f95a52faefa575de57209fa5c1523ebed5fde8831f6230fc6f23400bbd33e772c219

          • C:\Users\Admin\AppData\Local\Temp\$$a52B2.bat

            Filesize

            722B

            MD5

            29c197c54390e157a98bba932d794407

            SHA1

            2284a8d1d7e020fda044916272c6d01f3f130024

            SHA256

            5844467184de506389e19ac7503c37925bfc1f513366e309d7ac984d62a61bc1

            SHA512

            881cfdad60532747972d89166cbe1756506bb039ac43482c7f336c851d82ef85a3a088a412982c0bc247b3f8c5e00e833262fe25d22abe9f6fe9e547fad4db06

          • C:\Users\Admin\AppData\Local\Temp\83889fe248efc28953e990c521f1318902a936556e2b8952b4c6e7e9dc08b704.exe.exe

            Filesize

            33KB

            MD5

            cfcf15f5729649399cfb9b2590c9e80a

            SHA1

            f595a3f2812a29492326e5a0478f3924bcbae545

            SHA256

            b6fde5431374f5cc8a2b6b6953d7c466ce8828faf68c43661a2c0cf87481868f

            SHA512

            bbd925abf352af8962ab5e7d4b76bc4146e806cb0f8fde8a7cc2c13318450b46dd5529f6855065241de56efd72e33f4f9961ef5aa4ba8fd3c1ca312444ac8e19

          • C:\Windows\Logo1_.exe

            Filesize

            33KB

            MD5

            e8ee4723f696b9e3ecde75768c7018be

            SHA1

            68bcc682ab485eeead9552174bd6d69bf82f96e7

            SHA256

            905167896d2eecbb77f54d30f6f4e76fc75a804a7d6748f813724afebe930e44

            SHA512

            6329f42ff79d9fe1a32cf8a7d6bd3e1acdca94e1e0041afc8e9da3a78931f35343def9c9f333091d3cc6db7dd6bbe2e3626a8a74a37535bb048af4b6b56a5e7e

          • F:\$RECYCLE.BIN\S-1-5-21-1268429524-3929314613-1992311491-1000\_desktop.ini

            Filesize

            8B

            MD5

            209b72362215bdaaf45b2d2388ee962c

            SHA1

            872a46c03b4ff1322f5dd750c7ac0a07e5113ca0

            SHA256

            56dc9a9a2aef97a2582545195a5ae52880339dff396cf5a749551379418aed62

            SHA512

            45e9bfd535948c288f7342c28cc31fa63331dddc3b2f38afeb6cc1547f1301c46c97f9925905ee4d0ca46bb2d5f40181b913cfeaf9763ae6a38debdd24db7cc9

          • memory/1184-27-0x0000000002AA0000-0x0000000002AA1000-memory.dmp

            Filesize

            4KB

          • memory/2164-16-0x0000000000230000-0x000000000026D000-memory.dmp

            Filesize

            244KB

          • memory/2164-15-0x0000000000400000-0x000000000043D000-memory.dmp

            Filesize

            244KB

          • memory/2164-0-0x0000000000400000-0x000000000043D000-memory.dmp

            Filesize

            244KB

          • memory/2788-31-0x0000000000400000-0x000000000043D000-memory.dmp

            Filesize

            244KB

          • memory/2788-242-0x0000000000400000-0x000000000043D000-memory.dmp

            Filesize

            244KB

          • memory/2788-2937-0x0000000000400000-0x000000000043D000-memory.dmp

            Filesize

            244KB

          • memory/2788-19-0x0000000000400000-0x000000000043D000-memory.dmp

            Filesize

            244KB

          • memory/2788-3394-0x0000000000400000-0x000000000043D000-memory.dmp

            Filesize

            244KB

          • memory/2788-4044-0x0000000000400000-0x000000000043D000-memory.dmp

            Filesize

            244KB