Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    16/10/2024, 00:32

General

  • Target

    1f35a53d85676d42b288490df1629bcf32b66a883373238acfd891f1c5915273.exe

  • Size

    414KB

  • MD5

    8ed6fc461fb1cad41bbbe997fc33524b

  • SHA1

    c8ab52a0ac4be3b5a87e029e4d19fae59318069e

  • SHA256

    1f35a53d85676d42b288490df1629bcf32b66a883373238acfd891f1c5915273

  • SHA512

    9e18a5f23c9f27c8798b136c9d88ae2d918643623bf96c4c9f5b85aa85cc2bd26cb974b8f8376e34cc8cd8f13229a99921defb963456d7129c87fc74868970b7

  • SSDEEP

    6144:3w9D91dOrcN3ZGXNYFNmIkYvUIelVjjVtGRyFH4:gtRfJcNYFNm8UhlZGse

Malware Config

Signatures

  • Blocklisted process makes network request 10 IoCs
  • Deletes itself 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 6 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.

  • Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
  • Drops file in Program Files directory 2 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 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 19 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\1f35a53d85676d42b288490df1629bcf32b66a883373238acfd891f1c5915273.exe
    "C:\Users\Admin\AppData\Local\Temp\1f35a53d85676d42b288490df1629bcf32b66a883373238acfd891f1c5915273.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2088
    • C:\Windows\SysWOW64\cmd.exe
      cmd.exe /c ping 127.0.0.1 -n 2&C:\Users\Admin\AppData\Local\Temp\\kthtke.exe "C:\Users\Admin\AppData\Local\Temp\1f35a53d85676d42b288490df1629bcf32b66a883373238acfd891f1c5915273.exe"
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • System Network Configuration Discovery: Internet Connection Discovery
      • Suspicious use of WriteProcessMemory
      PID:2696
      • 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:2564
      • C:\Users\Admin\AppData\Local\Temp\kthtke.exe
        C:\Users\Admin\AppData\Local\Temp\\kthtke.exe "C:\Users\Admin\AppData\Local\Temp\1f35a53d85676d42b288490df1629bcf32b66a883373238acfd891f1c5915273.exe"
        3⤵
        • Deletes itself
        • Executes dropped EXE
        • Drops file in Program Files directory
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:2836
        • \??\c:\windows\SysWOW64\rundll32.exe
          c:\windows\system32\rundll32.exe "c:\Program Files\mwkayoqlu\dswxs.dll",Verify C:\Users\Admin\AppData\Local\Temp\kthtke.exe
          4⤵
          • Blocklisted process makes network request
          • Loads dropped DLL
          • Adds Run key to start application
          • Enumerates connected drives
          • Writes to the Master Boot Record (MBR)
          • Suspicious use of NtSetInformationThreadHideFromDebugger
          • System Location Discovery: System Language Discovery
          • Checks processor information in registry
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:2844

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • \??\c:\Program Files\mwkayoqlu\dswxs.dll

          Filesize

          228KB

          MD5

          4ede2ccd6260b9fc85d1adba56b24841

          SHA1

          602718d81a41dc2a3f919c16dfaca46210ea8ac6

          SHA256

          64a5e0e8e9332c49429c2f77822e03dedc90a2336779c1601f6cf879cc241e66

          SHA512

          6751550b914b714641fab7e11bf37627f8bbdbbda7b0f343772981a5fffddfe46c00237a1d72afc42933a3d9052f80d3b5072909815fbdfd69832a8f1d8d17bf

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

          Filesize

          414KB

          MD5

          80e3d5961d1b9e93a898e5ba2bba4d17

          SHA1

          3ec73d915975d5a163adc0896d912d606a62224a

          SHA256

          958d63354ca951dc0bb895391665ed48ac1ed20ac213226af232e85a4761c10a

          SHA512

          62c237013f0e1835c86c4617190fec0a8c041fb6ef2a8977402b08a78318a7607ff3b600f2dce869bd858202e1bbe342cc241f2e99d68e46ebc1333867979ccd

        • memory/2088-0-0x0000000000400000-0x0000000000464000-memory.dmp

          Filesize

          400KB

        • memory/2088-2-0x0000000000400000-0x0000000000464000-memory.dmp

          Filesize

          400KB

        • memory/2696-7-0x0000000000400000-0x0000000000464000-memory.dmp

          Filesize

          400KB

        • memory/2696-5-0x0000000000400000-0x0000000000464000-memory.dmp

          Filesize

          400KB

        • memory/2836-11-0x0000000000400000-0x0000000000464000-memory.dmp

          Filesize

          400KB

        • memory/2836-9-0x0000000000400000-0x0000000000464000-memory.dmp

          Filesize

          400KB

        • memory/2844-17-0x0000000010000000-0x0000000010080000-memory.dmp

          Filesize

          512KB

        • memory/2844-20-0x0000000010000000-0x0000000010080000-memory.dmp

          Filesize

          512KB

        • memory/2844-19-0x0000000010000000-0x0000000010080000-memory.dmp

          Filesize

          512KB

        • memory/2844-18-0x0000000010000000-0x0000000010080000-memory.dmp

          Filesize

          512KB

        • memory/2844-21-0x0000000010000000-0x0000000010080000-memory.dmp

          Filesize

          512KB

        • memory/2844-23-0x0000000010000000-0x0000000010080000-memory.dmp

          Filesize

          512KB