Analysis

  • max time kernel
    150s
  • max time network
    143s
  • 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, 02:56

General

  • Target

    a9e225acd55a36761bb040f76bde125e9b3d91d6b84426e9a54f34567df80669.exe

  • Size

    410KB

  • MD5

    ba5509128a0f29bf2229b8c723f3fc33

  • SHA1

    83244918a513d00bd3e4dc505685c6c9acd2fa2a

  • SHA256

    a9e225acd55a36761bb040f76bde125e9b3d91d6b84426e9a54f34567df80669

  • SHA512

    b4a8d4cc2be5444917361d5ed763b9e5cece84fd2d82a3cc6f15dbf422449138186af7db4866c54b40fa5698ec1d89a537a56432e6454b64dab57bcf51225306

  • SSDEEP

    6144:2jMPGGAn37FQXSzjBi9awI2WXyZPbwdpL:HPGk6jnCCdp

Malware Config

Signatures

  • Blocklisted process makes network request 4 IoCs
  • ASPack v2.12-2.42 1 IoCs

    Detects executables packed with ASPack v2.12-2.42

  • 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.

  • VMProtect packed file 8 IoCs

    Detects executables packed with VMProtect commercial packer.

  • 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.

  • 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 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a9e225acd55a36761bb040f76bde125e9b3d91d6b84426e9a54f34567df80669.exe
    "C:\Users\Admin\AppData\Local\Temp\a9e225acd55a36761bb040f76bde125e9b3d91d6b84426e9a54f34567df80669.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:4660
    • C:\Windows\SysWOW64\cmd.exe
      cmd.exe /c ping 127.0.0.1 -n 2&C:\Users\Admin\AppData\Local\Temp\\ukoya.exe "C:\Users\Admin\AppData\Local\Temp\a9e225acd55a36761bb040f76bde125e9b3d91d6b84426e9a54f34567df80669.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      • System Network Configuration Discovery: Internet Connection Discovery
      • Suspicious use of WriteProcessMemory
      PID:4408
      • 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:4260
      • C:\Users\Admin\AppData\Local\Temp\ukoya.exe
        C:\Users\Admin\AppData\Local\Temp\\ukoya.exe "C:\Users\Admin\AppData\Local\Temp\a9e225acd55a36761bb040f76bde125e9b3d91d6b84426e9a54f34567df80669.exe"
        3⤵
        • Deletes itself
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:4836
        • \??\c:\windows\SysWOW64\rundll32.exe
          c:\windows\system32\rundll32.exe "c:\yxbbtk\dthox.tod",Exit C:\Users\Admin\AppData\Local\Temp\ukoya.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:672

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

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

          Filesize

          410KB

          MD5

          2bef44584ff29840ae7b1e511ea7c424

          SHA1

          3234f8d7508ebb22c2a857f54a45de6a20961e40

          SHA256

          695a539fea5e45e7671afdce36a7567d73bb0271f322c51b64ca1675bf76a1b7

          SHA512

          7edfc088e964ea8909ca17fb12e831fb41dadc246896c8bff475301cd8144f5839cfba8231fbe92e6ff1b8cc8acf0150f7187373657ebd24ca4b7ee46b682c81

        • \??\c:\yxbbtk\dthox.tod

          Filesize

          128KB

          MD5

          64597ebd5759f1c96d9c89ba91e6b9ae

          SHA1

          22b5c32c02e7d98384b5d364d4e88805a988e58a

          SHA256

          8fe1d9492012107c64090e2bbed51ca84f46f0828bd95b18326f776e694e3bcb

          SHA512

          88cf508773b316acafafc5882dd6a50f895a4f444cfa0ef25781c0c5bbd8eba69e38b777460e66ee2cb25e6c61b699b0120788e00b2a0018bc02d07d644d076f

        • memory/672-10-0x0000000010000000-0x0000000010037000-memory.dmp

          Filesize

          220KB

        • memory/672-12-0x0000000010000000-0x0000000010037000-memory.dmp

          Filesize

          220KB

        • memory/672-11-0x0000000010000000-0x0000000010037000-memory.dmp

          Filesize

          220KB

        • memory/672-13-0x0000000010000000-0x0000000010037000-memory.dmp

          Filesize

          220KB

        • memory/672-16-0x0000000010000000-0x0000000010037000-memory.dmp

          Filesize

          220KB

        • memory/672-17-0x0000000010000000-0x0000000010037000-memory.dmp

          Filesize

          220KB

        • memory/672-18-0x0000000010000000-0x0000000010037000-memory.dmp

          Filesize

          220KB

        • memory/4660-0-0x0000000000400000-0x0000000000466000-memory.dmp

          Filesize

          408KB

        • memory/4660-2-0x0000000000400000-0x0000000000466000-memory.dmp

          Filesize

          408KB

        • memory/4836-7-0x0000000000400000-0x0000000000466000-memory.dmp

          Filesize

          408KB