Analysis

  • max time kernel
    150s
  • max time network
    17s
  • platform
    windows7_x64
  • resource
    win7-20240708-en
  • resource tags

    arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
  • submitted
    22-07-2024 14:19

General

  • Target

    91e37b9d2ad38ef66529c774646eac48801bb739a69aa8238c61b4e12b314d97.exe

  • Size

    306KB

  • MD5

    f1ac8a74c71a08a9df397de15e157e4a

  • SHA1

    971cd2ac5eae7ccd641dcebea30db2c9ef34f60d

  • SHA256

    91e37b9d2ad38ef66529c774646eac48801bb739a69aa8238c61b4e12b314d97

  • SHA512

    5b511dcd7774161f18d6f0c4a50dac3e1db452d449a7d0e22f8c6b791ea5fadb29a66f75684de48a967273691c9739edecb4d7022a5e5dcedba5666b948bf453

  • SSDEEP

    3072:eFfZQioJK/KOwVm0SWmuKEUyHKpwhSjQaJ90IkGR68obMs7mTjNeYYfQ3LOot9Ge:mEObiZKDAX0jH0o2zq9DmQ3LOotL4gr

Score
7/10

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 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\91e37b9d2ad38ef66529c774646eac48801bb739a69aa8238c61b4e12b314d97.exe
        "C:\Users\Admin\AppData\Local\Temp\91e37b9d2ad38ef66529c774646eac48801bb739a69aa8238c61b4e12b314d97.exe"
        2⤵
        • Drops file in Windows directory
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of WriteProcessMemory
        PID:3060
        • C:\Windows\SysWOW64\net.exe
          net stop "Kingsoft AntiVirus Service"
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:1320
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 stop "Kingsoft AntiVirus Service"
            4⤵
              PID:2340
          • C:\Windows\SysWOW64\cmd.exe
            cmd /c C:\Users\Admin\AppData\Local\Temp\$$aAC27.bat
            3⤵
            • Deletes itself
            • Loads dropped DLL
            • Suspicious use of WriteProcessMemory
            PID:2388
            • C:\Users\Admin\AppData\Local\Temp\91e37b9d2ad38ef66529c774646eac48801bb739a69aa8238c61b4e12b314d97.exe
              "C:\Users\Admin\AppData\Local\Temp\91e37b9d2ad38ef66529c774646eac48801bb739a69aa8238c61b4e12b314d97.exe"
              4⤵
              • Executes dropped EXE
              PID:2984
          • 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
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of WriteProcessMemory
            PID:2868
            • C:\Windows\SysWOW64\net.exe
              net stop "Kingsoft AntiVirus Service"
              4⤵
              • Suspicious use of WriteProcessMemory
              PID:2204
              • C:\Windows\SysWOW64\net1.exe
                C:\Windows\system32\net1 stop "Kingsoft AntiVirus Service"
                5⤵
                  PID:2716
              • C:\Windows\SysWOW64\net.exe
                net stop "Kingsoft AntiVirus Service"
                4⤵
                • Suspicious use of WriteProcessMemory
                PID:2144
                • C:\Windows\SysWOW64\net1.exe
                  C:\Windows\system32\net1 stop "Kingsoft AntiVirus Service"
                  5⤵
                    PID:3036

          Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

          Loading Replay Monitor...

          Downloads

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

            Filesize

            258KB

            MD5

            538c0e088843e61eadb25cbb475031d3

            SHA1

            5c2a1aa7e5a5acb2a05cee2485acc9a69b7ebcbb

            SHA256

            f504681f836f49e82b7f0ab3661a1195efd72a551915949cdcf653ccbd35d4f3

            SHA512

            a4781ea919c673ea87815696b7aa9158dbdfb0cb3ee12fb6213e66a174d75cb271a43dd5b568efef38da670e0559790015569e56fb2e3a47ac6da2a3134158d1

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

            Filesize

            478KB

            MD5

            79d96b6a2771e7783309bf05ebe7b5c1

            SHA1

            b19da11278224b17598d5b6de189892a83196708

            SHA256

            eb38a47ec49f3f376f53aff58def8c3a0e095bad67e2887d3f58bb4a3c71a19e

            SHA512

            72e30060fd922fc37662d762bc647bf85938986d810057926fe86a1622e1b05fc841bab9ee06ee7855071ed27da3d8fe20d41f03ae68c4c76cc720a7e56d4d68

          • C:\Users\Admin\AppData\Local\Temp\$$aAC27.bat

            Filesize

            722B

            MD5

            7bb766bdd54ebe4d0082955fb7d292c6

            SHA1

            e4a80994d8fdfa3e3f4839feef9994a3ae467fe7

            SHA256

            4720696f506e250672ba6b23e6f75f50e785f4726efbea2111eef6e253f23707

            SHA512

            dac91773f656dd830766ab12bc60488ea56eb5e8aa580c3a24f9b0ed0881b98a8e72803a604b9a56320dbc3ce28a641d2e9bbf99d070ff36064ecddb1122b445

          • C:\Users\Admin\AppData\Local\Temp\91e37b9d2ad38ef66529c774646eac48801bb739a69aa8238c61b4e12b314d97.exe.exe

            Filesize

            273KB

            MD5

            55e392d1bd55a1292b6ce766225416e5

            SHA1

            06d8134a3002e6974407fb5da0a59ab43415a52a

            SHA256

            db42cb95904cfc6891df2aa736506fb34a26cf9a26e88ab0ef262e0459344a3e

            SHA512

            0c55062cf8debbdf1a7a4f41527e43cd124fb7777e9b930de9cc900abf9c27a1956a536200e23dddc9a4068ac5bc9a8052299a4f2cf010cffd205a32d99581a2

          • C:\Windows\Logo1_.exe

            Filesize

            33KB

            MD5

            117c9521e5d8959b1861c9511c792fea

            SHA1

            8b69af116f9b988e45371c811cbddbadcc067e44

            SHA256

            ec905c17086effa5331a07e7805a26bbe62d94c5e90f5fa55a45c668061285de

            SHA512

            93b85bf1c95bdb8781ff90f88faa4b8a0945067be93390b87ee7ab5830b17b257422cfcfcd87078c5004510e2b553876070813a55faaa578e0b979576a2c0eeb

          • F:\$RECYCLE.BIN\S-1-5-21-1506706701-1246725540-2219210854-1000\_desktop.ini

            Filesize

            9B

            MD5

            5e286801abdc6ca5d3091665a72ecd7c

            SHA1

            87e0b4601ab0b05784a1059a45d72d807b0e2cbb

            SHA256

            131ccc46b756e5373dc2f2d37625bfb980a48f2f2287585da364166cf2e709b5

            SHA512

            51506d6adb68cca9e21fcddfe9672b91352cdb4f3c5b8c2da40219c73d2e7724776cd8701ff68449720c0aa398fe4f7665dabae2bd5147d42c5b6882c99f0bf1

          • memory/1200-28-0x0000000002D80000-0x0000000002D81000-memory.dmp

            Filesize

            4KB

          • memory/2868-32-0x0000000000400000-0x000000000043D000-memory.dmp

            Filesize

            244KB

          • memory/2868-18-0x0000000000400000-0x000000000043D000-memory.dmp

            Filesize

            244KB

          • memory/2868-3303-0x0000000000400000-0x000000000043D000-memory.dmp

            Filesize

            244KB

          • memory/2868-4150-0x0000000000400000-0x000000000043D000-memory.dmp

            Filesize

            244KB

          • memory/3060-0-0x0000000000400000-0x000000000043D000-memory.dmp

            Filesize

            244KB

          • memory/3060-16-0x0000000000400000-0x000000000043D000-memory.dmp

            Filesize

            244KB