Analysis

  • max time kernel
    142s
  • max time network
    142s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    16/10/2024, 21:10

General

  • Target

    5c10fd6a9b5c3325208bfcd0efeeb191322b01c3800b0e1bc7fab84c080bd289.exe

  • Size

    158KB

  • MD5

    254e5f62d8441ef2a4688265d41afbe3

  • SHA1

    041bece2d799928084c54d64c2719e4122a205c3

  • SHA256

    5c10fd6a9b5c3325208bfcd0efeeb191322b01c3800b0e1bc7fab84c080bd289

  • SHA512

    37f311520f2f5b892ae4816c05dd3c920d79cb41f7c880c7d2cd8d0e1aa33fc2d38acc9edb11236aa75f0ab098bd063c158dbcb49b2c596b1775729e1a05f353

  • SSDEEP

    3072:oONY+aHR7T65f4n/lAA8G6Drz3ihAvVg7MIEYVQYe6:oOq+8S4/lAJj33Vg7rGYe

Malware Config

Signatures

  • Deletes itself 1 IoCs
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 7 IoCs
  • Reads user/profile data of web browsers 3 TTPs

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

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Enumerates connected drives 3 TTPs 23 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs

    Bootkits write to the MBR to gain persistence at a level below the operating system.

  • UPX packed file 5 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Drops file in Program Files directory 4 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 5 IoCs

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

  • System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 2 IoCs

    Adversaries may check for Internet connectivity on compromised systems.

  • Checks processor information in registry 2 TTPs 2 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 16 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\5c10fd6a9b5c3325208bfcd0efeeb191322b01c3800b0e1bc7fab84c080bd289.exe
    "C:\Users\Admin\AppData\Local\Temp\5c10fd6a9b5c3325208bfcd0efeeb191322b01c3800b0e1bc7fab84c080bd289.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2068
    • C:\Windows\SysWOW64\cmd.exe
      cmd.exe /c ping 127.0.0.1 -n 2&C:\Users\Admin\AppData\Local\Temp\\zkcuw.exe "C:\Users\Admin\AppData\Local\Temp\5c10fd6a9b5c3325208bfcd0efeeb191322b01c3800b0e1bc7fab84c080bd289.exe"
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • System Network Configuration Discovery: Internet Connection Discovery
      • Suspicious use of WriteProcessMemory
      PID:2024
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1 -n 2
        3⤵
        • System Location Discovery: System Language Discovery
        • System Network Configuration Discovery: Internet Connection Discovery
        • Runs ping.exe
        PID:1928
      • C:\Users\Admin\AppData\Local\Temp\zkcuw.exe
        C:\Users\Admin\AppData\Local\Temp\\zkcuw.exe "C:\Users\Admin\AppData\Local\Temp\5c10fd6a9b5c3325208bfcd0efeeb191322b01c3800b0e1bc7fab84c080bd289.exe"
        3⤵
        • Deletes itself
        • Executes dropped EXE
        • Loads dropped DLL
        • Drops file in Program Files directory
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:2076
        • \??\c:\Program Files\wmsok\ppc.exe
          "c:\Program Files\wmsok\ppc.exe" "c:\Program Files\wmsok\ppcfm.dll",Group C:\Users\Admin\AppData\Local\Temp\zkcuw.exe
          4⤵
          • Executes dropped EXE
          • Loads dropped DLL
          • Adds Run key to start application
          • Enumerates connected drives
          • Writes to the Master Boot Record (MBR)
          • System Location Discovery: System Language Discovery
          • Checks processor information in registry
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:2680

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        • \Program Files\wmsok\ppc.exe

          Filesize

          43KB

          MD5

          51138beea3e2c21ec44d0932c71762a8

          SHA1

          8939cf35447b22dd2c6e6f443446acc1bf986d58

          SHA256

          5ad3c37e6f2b9db3ee8b5aeedc474645de90c66e3d95f8620c48102f1eba4124

          SHA512

          794f30fe452117ff2a26dc9d7086aaf82b639c2632ac2e381a81f5239caaec7c96922ba5d2d90bfd8d74f0a6cd4f79fbda63e14c6b779e5cf6834c13e4e45e7d

        • \Program Files\wmsok\ppcfm.dll

          Filesize

          97KB

          MD5

          d890c0dc10dcdf7bc8a559223a2302f4

          SHA1

          342cc782515d565fb4240e74e221d894bb1d26c9

          SHA256

          d2b058e40ce692d65c1781b8fb3e02b4ddca4240d281a7a1a7fcd1396e6e8091

          SHA512

          7069a6fa214bf111b6b314afeb4acfcf986ceb4012139d7fec88ad0d26efb94939ef5b3ab244a34c42b5ee70cbcd4a76810d6189457adeb4d50a75f5c23884ac

        • \Users\Admin\AppData\Local\Temp\zkcuw.exe

          Filesize

          158KB

          MD5

          4828a65bf4eaa545e2f00c3c0c10426d

          SHA1

          0a2e054f0c1f92f3b86d4b6eaa76d9685b7dce01

          SHA256

          068670578fa9d9d87c1753d075098cc0ab1a0df5a222cc2e9bc758b85f224ef4

          SHA512

          36e2e461755c586ab1b3135f292e49323cadcaa64e419045394b779d2fc7114cd3733827820381cdc63144a9b2ef3f4793fe5385f32eb566cea35c2787aca301

        • memory/2068-1-0x0000000000400000-0x000000000043D011-memory.dmp

          Filesize

          244KB

        • memory/2076-11-0x0000000000400000-0x000000000043D011-memory.dmp

          Filesize

          244KB

        • memory/2680-19-0x0000000010000000-0x0000000010038000-memory.dmp

          Filesize

          224KB

        • memory/2680-18-0x0000000010000000-0x0000000010038000-memory.dmp

          Filesize

          224KB

        • memory/2680-21-0x0000000010000000-0x0000000010038000-memory.dmp

          Filesize

          224KB

        • memory/2680-22-0x0000000010000000-0x0000000010038000-memory.dmp

          Filesize

          224KB

        • memory/2680-23-0x0000000010000000-0x0000000010038000-memory.dmp

          Filesize

          224KB

        • memory/2680-24-0x0000000010000000-0x0000000010038000-memory.dmp

          Filesize

          224KB