Analysis

  • max time kernel
    148s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    16/10/2024, 00:40

General

  • Target

    849d94512ae368e75cb0eeb13339c752f7c12254a429b887c99c6bbc6444de00.exe

  • Size

    202KB

  • MD5

    ee4f1bb44ebde2bd97c7627c92016842

  • SHA1

    70e1a087bc87ede1bf33897df9a4a20dab64778e

  • SHA256

    849d94512ae368e75cb0eeb13339c752f7c12254a429b887c99c6bbc6444de00

  • SHA512

    d610e258a7d5a7e6c60dcbcc71d9b200fe5f399ec293b51bfc2a715d68e26a49da05719dce27a2505ff5d1f58fbf6edfa30fdb85bbbe2ae2286fdd4c14a133f9

  • SSDEEP

    3072:a74MyJjjlLzVjN50BdQqlYgp72xzbuawaGO0OJw8KWs6IgVLE7QkfIA9:awj30dlZ+GVaRVLE7QkfIG

Malware Config

Signatures

  • Blocklisted process makes network request 7 IoCs
  • Deletes itself 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 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 4 IoCs

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

  • 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 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\849d94512ae368e75cb0eeb13339c752f7c12254a429b887c99c6bbc6444de00.exe
    "C:\Users\Admin\AppData\Local\Temp\849d94512ae368e75cb0eeb13339c752f7c12254a429b887c99c6bbc6444de00.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2544
    • C:\Windows\SysWOW64\cmd.exe
      cmd.exe /c ping 127.0.0.1 -n 2&C:\Users\Admin\AppData\Local\Temp\\znkrq.exe "C:\Users\Admin\AppData\Local\Temp\849d94512ae368e75cb0eeb13339c752f7c12254a429b887c99c6bbc6444de00.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      • System Network Configuration Discovery: Internet Connection Discovery
      • Suspicious use of WriteProcessMemory
      PID:236
      • 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:4552
      • C:\Users\Admin\AppData\Local\Temp\znkrq.exe
        C:\Users\Admin\AppData\Local\Temp\\znkrq.exe "C:\Users\Admin\AppData\Local\Temp\849d94512ae368e75cb0eeb13339c752f7c12254a429b887c99c6bbc6444de00.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:4132
        • \??\c:\windows\SysWOW64\rundll32.exe
          c:\windows\system32\rundll32.exe "c:\Program Files\hldak\veojwfni.dll",method C:\Users\Admin\AppData\Local\Temp\znkrq.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:5104

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

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

          Filesize

          202KB

          MD5

          38b09391d8d0e30c2eb777f75a453bcb

          SHA1

          d5a9cd6b7765e86cbda11659f869b3d67709cdc7

          SHA256

          0163122e25499b5a65818f16cc023b2ce651504027d195ef1e07f5f3ab90a02b

          SHA512

          31c38c26bfe29fe0bfdebf08ed3262042ad94b712ac4b32512d87a521b6fea2d754321fa672cbb7f6e637b49128a0e805e6bf2ec235f73aae7cc7e6fa84cca85

        • \??\c:\Program Files\hldak\veojwfni.dll

          Filesize

          148KB

          MD5

          61f3f88c80172e805f927e3776d6a733

          SHA1

          00a8ffeb837799f5685f619d37beddd8073da126

          SHA256

          2967adcf4cfa79085d09dcc9a4c3a4e0ddab13aeeaf87ab94e1b562b03583e74

          SHA512

          ed444e1778cb008afa473e543507171d93091668c382bb38ea946ba95f12bd4cdb1299447b187df61b3716c2d75011b52d76645672257bf54c04480ff4a8473f

        • memory/2544-0-0x0000000000400000-0x000000000044A000-memory.dmp

          Filesize

          296KB

        • memory/2544-3-0x0000000000400000-0x000000000044A000-memory.dmp

          Filesize

          296KB

        • memory/4132-9-0x0000000000400000-0x000000000044A000-memory.dmp

          Filesize

          296KB

        • memory/5104-12-0x0000000010000000-0x0000000010056000-memory.dmp

          Filesize

          344KB

        • memory/5104-13-0x0000000010050000-0x0000000010051000-memory.dmp

          Filesize

          4KB

        • memory/5104-14-0x0000000010000000-0x0000000010056000-memory.dmp

          Filesize

          344KB

        • memory/5104-16-0x0000000010000000-0x0000000010056000-memory.dmp

          Filesize

          344KB