Analysis

  • max time kernel
    121s
  • max time network
    123s
  • platform
    windows7_x64
  • resource
    win7-20241010-en
  • resource tags

    arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
  • submitted
    13/12/2024, 02:14

General

  • Target

    258e444e78225f74d47ba4698d49a33e6d1f6ed1f3f710186be426078e2bf1cb.exe

  • Size

    1.8MB

  • MD5

    3b8b3018e3283830627249d26305419d

  • SHA1

    40fa5ef5594f9e32810c023aba5b6b8cea82f680

  • SHA256

    258e444e78225f74d47ba4698d49a33e6d1f6ed1f3f710186be426078e2bf1cb

  • SHA512

    2e9a42e53406446b503f150abfa16b994ee34211830d14ccbfbf52d86019dc5cca95c40222e5c6aed910c90988f999560ff972c575f9c207d7834abba6f04aa0

  • SSDEEP

    49152:P8nqKzUOChrrWci7WP+g5YQtli9T0n26vwh:PsqJJrrWviPcf6

Malware Config

Signatures

  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs
  • Checks BIOS information in registry 2 TTPs 2 IoCs

    BIOS information is often read in order to detect sandboxing environments.

  • Deletes itself 1 IoCs
  • Identifies Wine through registry keys 2 TTPs 1 IoCs

    Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.

  • Reads data files stored by FTP clients 2 TTPs

    Tries to access configuration files associated with programs like FileZilla.

  • Unsecured Credentials: Credentials In Files 1 TTPs

    Steal credentials from unsecured files.

  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Checks processor information in registry 2 TTPs 2 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Delays execution with timeout.exe 1 IoCs
  • Modifies system certificate store 2 TTPs 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\258e444e78225f74d47ba4698d49a33e6d1f6ed1f3f710186be426078e2bf1cb.exe
    "C:\Users\Admin\AppData\Local\Temp\258e444e78225f74d47ba4698d49a33e6d1f6ed1f3f710186be426078e2bf1cb.exe"
    1⤵
    • Identifies VirtualBox via ACPI registry values (likely anti-VM)
    • Checks BIOS information in registry
    • Identifies Wine through registry keys
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • System Location Discovery: System Language Discovery
    • Checks processor information in registry
    • Modifies system certificate store
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:576
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\system32\cmd.exe" /c timeout /t 10 & del /f /q "C:\Users\Admin\AppData\Local\Temp\258e444e78225f74d47ba4698d49a33e6d1f6ed1f3f710186be426078e2bf1cb.exe" & rd /s /q "C:\ProgramData\0ZMYUSJEUA1V" & exit
      2⤵
      • Deletes itself
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:496
      • C:\Windows\SysWOW64\timeout.exe
        timeout /t 10
        3⤵
        • System Location Discovery: System Language Discovery
        • Delays execution with timeout.exe
        PID:1820

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015

          Filesize

          342B

          MD5

          f1a16fe5a6f3a4f979eb474c989766eb

          SHA1

          6b4f6dd019854422e5e9b3ba6c6bb277565568e4

          SHA256

          0f80087fe6a2b1179f1dc24aef0df1114e700ce547fe4215e731d3ff07e71336

          SHA512

          7b8ab2fc1cc0c6b2eefa9288f23f39edc5e83d021c4be5cf0a83a1743d2a3cb6c4c8609b3a5ef887f06f9c4541012566d9c6157550041a2c3c7a2e59af994891

        • C:\Users\Admin\AppData\Local\Temp\CabD951.tmp

          Filesize

          70KB

          MD5

          49aebf8cbd62d92ac215b2923fb1b9f5

          SHA1

          1723be06719828dda65ad804298d0431f6aff976

          SHA256

          b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

          SHA512

          bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

        • C:\Users\Admin\AppData\Local\Temp\TarD973.tmp

          Filesize

          181KB

          MD5

          4ea6026cf93ec6338144661bf1202cd1

          SHA1

          a1dec9044f750ad887935a01430bf49322fbdcb7

          SHA256

          8efbc21559ef8b1bcf526800d8070baad42474ce7198e26fa771dbb41a76b1d8

          SHA512

          6c7e0980e39aacf4c3689802353f464a08cd17753bd210ee997e5f2a455deb4f287a9ef74d84579dbde49bc96213cd2b8b247723919c412ea980aa6e6bfe218b

        • memory/576-0-0x0000000000400000-0x0000000000A9C000-memory.dmp

          Filesize

          6.6MB

        • memory/576-1-0x0000000077A00000-0x0000000077A02000-memory.dmp

          Filesize

          8KB

        • memory/576-2-0x0000000000401000-0x000000000041E000-memory.dmp

          Filesize

          116KB

        • memory/576-3-0x0000000000400000-0x0000000000A9C000-memory.dmp

          Filesize

          6.6MB

        • memory/576-4-0x0000000000400000-0x0000000000A9C000-memory.dmp

          Filesize

          6.6MB

        • memory/576-138-0x0000000000400000-0x0000000000A9C000-memory.dmp

          Filesize

          6.6MB

        • memory/576-139-0x0000000000400000-0x0000000000A9C000-memory.dmp

          Filesize

          6.6MB

        • memory/576-194-0x0000000000400000-0x0000000000A9C000-memory.dmp

          Filesize

          6.6MB

        • memory/576-196-0x0000000000400000-0x0000000000A9C000-memory.dmp

          Filesize

          6.6MB