Analysis

  • max time kernel
    150s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7-20231129-en
  • resource tags

    arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
  • submitted
    14/06/2024, 18:14

General

  • Target

    a5f74f6bfb321220e04bb5e0fe02c2510543f96a9240471bc5fc33543a64e355.exe

  • Size

    66KB

  • MD5

    8f01c2ececfa92aaa29802c21f8bb018

  • SHA1

    58ef3aa86c5b42642776a4ad3a779525e76a0fa0

  • SHA256

    a5f74f6bfb321220e04bb5e0fe02c2510543f96a9240471bc5fc33543a64e355

  • SHA512

    a63a485623a734bbdbf4022351f9d11379dd71c3fcfbaaa8122e5b54697b81ab0466a8d2db14d53117b1d3b38935cc1fb876e9459f42606e1c54f3936960f16a

  • SSDEEP

    768:mYBzh+Vxr1x5cE9Fl5pz8UOutDlMXaoSunjXWNNZ2KG6KzVSVxhMXYkUEt6HAkxV:/BNsrz8VuJlMXaDuiNf2kKzs2Irj5hN

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:1372
      • C:\Users\Admin\AppData\Local\Temp\a5f74f6bfb321220e04bb5e0fe02c2510543f96a9240471bc5fc33543a64e355.exe
        "C:\Users\Admin\AppData\Local\Temp\a5f74f6bfb321220e04bb5e0fe02c2510543f96a9240471bc5fc33543a64e355.exe"
        2⤵
        • Drops file in Windows directory
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of WriteProcessMemory
        PID:2936
        • C:\Windows\SysWOW64\net.exe
          net stop "Kingsoft AntiVirus Service"
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:2792
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 stop "Kingsoft AntiVirus Service"
            4⤵
              PID:2712
          • C:\Windows\SysWOW64\cmd.exe
            cmd /c C:\Users\Admin\AppData\Local\Temp\$$a1BCA.bat
            3⤵
            • Deletes itself
            • Loads dropped DLL
            • Suspicious use of WriteProcessMemory
            PID:2908
            • C:\Users\Admin\AppData\Local\Temp\a5f74f6bfb321220e04bb5e0fe02c2510543f96a9240471bc5fc33543a64e355.exe
              "C:\Users\Admin\AppData\Local\Temp\a5f74f6bfb321220e04bb5e0fe02c2510543f96a9240471bc5fc33543a64e355.exe"
              4⤵
              • Executes dropped EXE
              PID:2668
          • 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:1972
            • C:\Windows\SysWOW64\net.exe
              net stop "Kingsoft AntiVirus Service"
              4⤵
              • Suspicious use of WriteProcessMemory
              PID:2632
              • C:\Windows\SysWOW64\net1.exe
                C:\Windows\system32\net1 stop "Kingsoft AntiVirus Service"
                5⤵
                  PID:2636
              • C:\Windows\SysWOW64\net.exe
                net stop "Kingsoft AntiVirus Service"
                4⤵
                • Suspicious use of WriteProcessMemory
                PID:2696
                • C:\Windows\SysWOW64\net1.exe
                  C:\Windows\system32\net1 stop "Kingsoft AntiVirus Service"
                  5⤵
                    PID:2456

          Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

          Loading Replay Monitor...

          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\$$a1BCA.bat

            Filesize

            722B

            MD5

            6a7cecf700727c34a26ed1fe6ddaee6d

            SHA1

            94a7e448f17f93978a833e708e9e4b6cb9334637

            SHA256

            209c35f854c48d45c185565189f6b2045c248b18ba3d3d2a43426cddb8aa1074

            SHA512

            e56376d663288a04aeb1b74ca9a0f1603d90b6412e54f905ebe52b910b253d56527a2d79fe52b1908887b27a0407d26e55724f932eb0a2840a1694fbd75d4211

          • C:\Users\Admin\AppData\Local\Temp\a5f74f6bfb321220e04bb5e0fe02c2510543f96a9240471bc5fc33543a64e355.exe.exe

            Filesize

            33KB

            MD5

            97ec61761e1fdfb2f1d4ea4d221a43d1

            SHA1

            d6e1682a8dd967bdffe8c145731fb9ea1d0a3509

            SHA256

            1f3069b596484ffa16181226b07c67ee1cb0f41d191ddde7c02f6bb75336cc52

            SHA512

            7d34cc27dce09e2711d76f39c5f44525937ac15723aaedc303c154223f3ec42e6043374582614cc3067795781a2daf6ea8935f3f3b0a8747fa783cedf36090a9

          • C:\Windows\Logo1_.exe

            Filesize

            33KB

            MD5

            d208b34bbac286d49a77081b20a5c951

            SHA1

            94341f108285312afa4cd4d6458804358b88e322

            SHA256

            6d3b364072ac79af423a6fa1252424274b51e8c18a113e8f54e7d8a9413ae33a

            SHA512

            e42039b533ec80a0b591bd6a4877c8c993eefdd7323a6fbb2d58b75188f085365c8f927f7079917fa18363f505f9ec400c0536f236248ca2809941dcd408aab0

          • F:\$RECYCLE.BIN\S-1-5-21-3627615824-4061627003-3019543961-1000\_desktop.ini

            Filesize

            9B

            MD5

            03c36dbecb7f35761f80ba5fc5566da6

            SHA1

            159b7733006187467bda251a1bbb278c141dceb6

            SHA256

            85a53f5b976fb1c26ce14c31e93c1f68997d2d8b09ab9aa2b7e0d32b8e50ec3b

            SHA512

            fe573085d2abef34adcede2f89b1c2810875ab00ef9ba27a1d95ed1dbe93e182fc53d981901a0b8048dd4eb5fdc852b8f0e0c3a0e1a404cbbe70e13a7a14104a

          • memory/1372-27-0x0000000002A20000-0x0000000002A21000-memory.dmp

            Filesize

            4KB

          • memory/1972-18-0x0000000000400000-0x0000000000440000-memory.dmp

            Filesize

            256KB

          • memory/1972-31-0x0000000000400000-0x0000000000440000-memory.dmp

            Filesize

            256KB

          • memory/1972-3318-0x0000000000400000-0x0000000000440000-memory.dmp

            Filesize

            256KB

          • memory/1972-4123-0x0000000000400000-0x0000000000440000-memory.dmp

            Filesize

            256KB

          • memory/2936-0-0x0000000000400000-0x0000000000440000-memory.dmp

            Filesize

            256KB

          • memory/2936-17-0x0000000000400000-0x0000000000440000-memory.dmp

            Filesize

            256KB