Analysis

  • max time kernel
    119s
  • max time network
    120s
  • 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, 01:27

General

  • Target

    eb37275890d7c01f25670234b9b5a84ee4c1bc9aa5a0808fbed48d3675327ae9N.exe

  • Size

    368KB

  • MD5

    8abe17eb6af4673e7f67edc5f44ff5f0

  • SHA1

    ade3ad178d66f2216e69703bd09196c91de8b21f

  • SHA256

    eb37275890d7c01f25670234b9b5a84ee4c1bc9aa5a0808fbed48d3675327ae9

  • SHA512

    43423c1e15cca744a5baba44332f201b832bda36e06f0598aa3e57c06ff0d34e7d21cd09e03f4683d1c6d983f8efb0697558ed664ecebde405cbd5cd3b49c19a

  • SSDEEP

    6144:5JgmYA/nVA9JATAoQSHBjQP/sC94mrJx2XtjXmK6cAQJNElb6dPURN5Fpg:3gmYA/n0eDBjQPphdxmj2LcAEmlb+UpE

Malware Config

Signatures

  • Deletes itself 1 IoCs
  • Executes dropped EXE 2 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.

  • 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 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\eb37275890d7c01f25670234b9b5a84ee4c1bc9aa5a0808fbed48d3675327ae9N.exe
    "C:\Users\Admin\AppData\Local\Temp\eb37275890d7c01f25670234b9b5a84ee4c1bc9aa5a0808fbed48d3675327ae9N.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:3228
    • C:\Windows\SysWOW64\cmd.exe
      cmd.exe /c ping 127.0.0.1 -n 2&C:\Users\Admin\AppData\Local\Temp\\gpauuvyr.exe "C:\Users\Admin\AppData\Local\Temp\eb37275890d7c01f25670234b9b5a84ee4c1bc9aa5a0808fbed48d3675327ae9N.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      • System Network Configuration Discovery: Internet Connection Discovery
      • Suspicious use of WriteProcessMemory
      PID:2492
      • 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:552
      • C:\Users\Admin\AppData\Local\Temp\gpauuvyr.exe
        C:\Users\Admin\AppData\Local\Temp\\gpauuvyr.exe "C:\Users\Admin\AppData\Local\Temp\eb37275890d7c01f25670234b9b5a84ee4c1bc9aa5a0808fbed48d3675327ae9N.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:4044
        • \??\c:\Program Files\aprlf\yae.exe
          "c:\Program Files\aprlf\yae.exe" "c:\Program Files\aprlf\yaela.dll",Clean C:\Users\Admin\AppData\Local\Temp\gpauuvyr.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:1964

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        • C:\Program Files\aprlf\yae.exe

          Filesize

          60KB

          MD5

          889b99c52a60dd49227c5e485a016679

          SHA1

          8fa889e456aa646a4d0a4349977430ce5fa5e2d7

          SHA256

          6cbe0e1f046b13b29bfa26f8b368281d2dda7eb9b718651d5856f22cc3e02910

          SHA512

          08933106eaf338dd119c45cbf1f83e723aff77cc0f8d3fc84e36253b1eb31557a54211d1d5d1cb58958188e32064d451f6c66a24b3963cccd3de07299ab90641

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

          Filesize

          369KB

          MD5

          8b82d510738e567cdff7db601f6a335b

          SHA1

          0ef1dc1b856165cafbd60302c0a43dfd9d4db11e

          SHA256

          2f08a3702938f719709a6c9134ca76fdfc149f81342f50785b451f2c9fec6c16

          SHA512

          3fb278e08f7e10ed244013373c474eb04fce97a08b9f75e17ea3e6e1970ef022a21ca3080e213dcb461b0b1b6e789eb44610e8d371b81b839526bacc6be7db9c

        • \??\c:\Program Files\aprlf\yaela.dll

          Filesize

          160KB

          MD5

          2bca6848cee9b8966b98ba3b9e00c7cb

          SHA1

          1cada0af76ed6af88d7486368cc30d8090e29df8

          SHA256

          58f231fa74ddaf4c6c2f2b5d46ae5b03d01ed7b519c0601b3b2a1defa9bf9381

          SHA512

          ac614f9df95dfa1122624d3d67dc2abccacdc8c36397c57a8f7f29bf29bde9e26a69344fb04509fd1a604bdd3d352d507512c9d512fce1f8127776b5e783ac5b

        • memory/1964-14-0x0000000010000000-0x0000000010058000-memory.dmp

          Filesize

          352KB

        • memory/1964-16-0x0000000010000000-0x0000000010058000-memory.dmp

          Filesize

          352KB

        • memory/1964-17-0x0000000010000000-0x0000000010058000-memory.dmp

          Filesize

          352KB

        • memory/3228-0-0x0000000000400000-0x000000000045D000-memory.dmp

          Filesize

          372KB

        • memory/3228-2-0x0000000000400000-0x000000000045D000-memory.dmp

          Filesize

          372KB

        • memory/4044-10-0x0000000000400000-0x000000000045D000-memory.dmp

          Filesize

          372KB