Analysis

  • max time kernel
    144s
  • max time network
    144s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    16/10/2024, 01:35

General

  • Target

    9967333e71cb9d20c01e54504586c51651cf090306eb21dba9c477f209ea61ab.exe

  • Size

    94KB

  • MD5

    235126a6fcdd952ce3adf837e72455b7

  • SHA1

    05553713fd87ae701ccb8d92b1a07257659eb970

  • SHA256

    9967333e71cb9d20c01e54504586c51651cf090306eb21dba9c477f209ea61ab

  • SHA512

    2e4e3b2482031eec7d345899743541cfca0b5936e7244c10f5352fa8b2b26ae3044a52c916031e666740af972c405adb93f4906368f7e6b4fbc5a0791ec948fe

  • SSDEEP

    1536:TSSABNx6vb4RoI47zzzzzzzzzvfxzVzNrzzzgzzzzzzzzzzzzzzzz6zzzdzzzzlB:eSABNx6vb4RoI4pyjHYLhal01UoPX+h0

Malware Config

Signatures

  • Blocklisted process makes network request 4 IoCs
  • ACProtect 1.3x - 1.4x DLL software 1 IoCs

    Detects file using ACProtect software.

  • Deletes itself 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 4 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.

  • 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 19 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\9967333e71cb9d20c01e54504586c51651cf090306eb21dba9c477f209ea61ab.exe
    "C:\Users\Admin\AppData\Local\Temp\9967333e71cb9d20c01e54504586c51651cf090306eb21dba9c477f209ea61ab.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2244
    • C:\Windows\SysWOW64\cmd.exe
      cmd.exe /c ping 127.0.0.1 -n 2&c:\umqyn.exe "C:\Users\Admin\AppData\Local\Temp\9967333e71cb9d20c01e54504586c51651cf090306eb21dba9c477f209ea61ab.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      • System Network Configuration Discovery: Internet Connection Discovery
      • Suspicious use of WriteProcessMemory
      PID:1040
      • 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:388
      • \??\c:\umqyn.exe
        c:\umqyn.exe "C:\Users\Admin\AppData\Local\Temp\9967333e71cb9d20c01e54504586c51651cf090306eb21dba9c477f209ea61ab.exe"
        3⤵
        • Deletes itself
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:2428
        • \??\c:\windows\SysWOW64\rundll32.exe
          c:\windows\system32\rundll32.exe "c:\tktni\cewymhr.dll",DoVirusScan c:\umqyn.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)
          • System Location Discovery: System Language Discovery
          • Checks processor information in registry
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:2580

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        • \??\c:\tktni\cewymhr.dll

          Filesize

          50KB

          MD5

          cbfc06794d16ace6adf42210183fc1b9

          SHA1

          74fc68a2af225b0aca954b3684940747511013c5

          SHA256

          b2d21c40c5bfc0f7695945946fa1cdd4eaf2f66a8391ddde6307c5f765fbf525

          SHA512

          181dbe8b63e28a81cb8e0b7240df8745da350e1ab433b157b8b4fd36aa10f0782e807c09563bcffe37cfe64aa1b514b2cc1f179fbcba422d96867179d88e13c9

        • \??\c:\umqyn.exe

          Filesize

          94KB

          MD5

          e368bc1abdf9ace70440ca3828cb7105

          SHA1

          de7e6e97f84b383e118a38c902324b4fa4c0135b

          SHA256

          bf537b8dc07eeb08a8761e5d3cad3ac0fd68ea5cd20e35546194a5b4b76c7dce

          SHA512

          35a36ae562eb390b555d7c4cac4d89fc6400aa0ff0332a81f086f2230ef8378065b77234bbbd22a65151cf1cbbaea542b5c5fc9bcb867b603cef62063c95f1cf

        • memory/2244-0-0x0000000000400000-0x0000000000417000-memory.dmp

          Filesize

          92KB

        • memory/2244-2-0x0000000000400000-0x0000000000417000-memory.dmp

          Filesize

          92KB

        • memory/2428-6-0x0000000000400000-0x0000000000417000-memory.dmp

          Filesize

          92KB

        • memory/2580-14-0x0000000010000000-0x0000000010032000-memory.dmp

          Filesize

          200KB

        • memory/2580-15-0x000000001002C000-0x000000001002D000-memory.dmp

          Filesize

          4KB

        • memory/2580-13-0x0000000010000000-0x0000000010032000-memory.dmp

          Filesize

          200KB

        • memory/2580-11-0x0000000010000000-0x0000000010032000-memory.dmp

          Filesize

          200KB

        • memory/2580-16-0x0000000010000000-0x0000000010032000-memory.dmp

          Filesize

          200KB

        • memory/2580-17-0x0000000010000000-0x0000000010032000-memory.dmp

          Filesize

          200KB

        • memory/2580-18-0x0000000010000000-0x0000000010032000-memory.dmp

          Filesize

          200KB

        • memory/2580-19-0x0000000010000000-0x0000000010032000-memory.dmp

          Filesize

          200KB