Analysis

  • max time kernel
    149s
  • max time network
    149s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    10-11-2024 01:27

General

  • Target

    9639abdd5377982e1702e9f3ece23033f0e8e5dce495c2a6ac70e3a98cd76df3.exe

  • Size

    414KB

  • MD5

    c3f4ccff74df3688e12ffb8c442ef5b4

  • SHA1

    1d436e72e1c2b7c63f991e4e76e931c364c22e21

  • SHA256

    9639abdd5377982e1702e9f3ece23033f0e8e5dce495c2a6ac70e3a98cd76df3

  • SHA512

    7c4edf9d1c9abc9ca9c3dca2b90b20e6a4664de9980a7229d058bf3ee18c4c15b6695b4aa40b2642ca54006800fdcc47951ced4c77a187881733e4a76fee6a7e

  • SSDEEP

    6144:3w9D91dOrcN3ZGXNYFNmIkYvUIelVjjVtGRyFH4:gtRfJcNYFNm8UhlZGse

Malware Config

Signatures

  • Blocklisted process makes network request 10 IoCs
  • Deletes itself 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 6 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.

  • Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
  • 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 64 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\9639abdd5377982e1702e9f3ece23033f0e8e5dce495c2a6ac70e3a98cd76df3.exe
    "C:\Users\Admin\AppData\Local\Temp\9639abdd5377982e1702e9f3ece23033f0e8e5dce495c2a6ac70e3a98cd76df3.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2692
    • C:\Windows\SysWOW64\cmd.exe
      cmd.exe /c ping 127.0.0.1 -n 2&C:\Users\Admin\AppData\Local\Temp\\edwyrhlxv.exe "C:\Users\Admin\AppData\Local\Temp\9639abdd5377982e1702e9f3ece23033f0e8e5dce495c2a6ac70e3a98cd76df3.exe"
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • System Network Configuration Discovery: Internet Connection Discovery
      • Suspicious use of WriteProcessMemory
      PID:2788
      • 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:2696
      • C:\Users\Admin\AppData\Local\Temp\edwyrhlxv.exe
        C:\Users\Admin\AppData\Local\Temp\\edwyrhlxv.exe "C:\Users\Admin\AppData\Local\Temp\9639abdd5377982e1702e9f3ece23033f0e8e5dce495c2a6ac70e3a98cd76df3.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:2820
        • \??\c:\windows\SysWOW64\rundll32.exe
          c:\windows\system32\rundll32.exe "c:\Program Files\ahqgy\bmnkpo.dll",Verify C:\Users\Admin\AppData\Local\Temp\edwyrhlxv.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)
          • Suspicious use of NtSetInformationThreadHideFromDebugger
          • System Location Discovery: System Language Discovery
          • Checks processor information in registry
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:2780

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • \??\c:\Program Files\ahqgy\bmnkpo.dll

    Filesize

    228KB

    MD5

    03d2fb4a8a10778b18f92fa6519b5d44

    SHA1

    047d8c0da2b1eb7704102250468f7bc6e9e5fc37

    SHA256

    1ad2478058204e7e153263a94be8630a071b5e377d2a2446ea4b323f2331e625

    SHA512

    296322ab4a7d8c13ac82ac1befec12ecdf06b92a7da52c3456bc434f6d86bd0cde75cd6a75808fc96971fd0bb18aee513192a8c4b21591ecb35962fd7b6462ac

  • \Users\Admin\AppData\Local\Temp\edwyrhlxv.exe

    Filesize

    414KB

    MD5

    7f2fb1127da0aca11852094870e192ba

    SHA1

    f065d42fd5f46315231c667b8758cdd715d4bec5

    SHA256

    856ff7a4644e7e62f2f524c82dd1a76820c83a41a0665440ffbabfeb68a8288c

    SHA512

    6b34e041e1722a31ced6593db6d8f572499c5a2f5ae093180cce91182ce82564f669c4277190a7be2b1f00e702174b3b92ffcc56a6a4848f4383713917a6e1ee

  • memory/2692-0-0x0000000000400000-0x0000000000464000-memory.dmp

    Filesize

    400KB

  • memory/2692-2-0x0000000000400000-0x0000000000464000-memory.dmp

    Filesize

    400KB

  • memory/2780-15-0x0000000010000000-0x0000000010080000-memory.dmp

    Filesize

    512KB

  • memory/2780-16-0x0000000010000000-0x0000000010080000-memory.dmp

    Filesize

    512KB

  • memory/2780-13-0x0000000010000000-0x0000000010080000-memory.dmp

    Filesize

    512KB

  • memory/2780-17-0x0000000010000000-0x0000000010080000-memory.dmp

    Filesize

    512KB

  • memory/2780-19-0x0000000010000000-0x0000000010080000-memory.dmp

    Filesize

    512KB

  • memory/2820-8-0x0000000000400000-0x0000000000464000-memory.dmp

    Filesize

    400KB