Analysis

  • max time kernel
    119s
  • max time network
    119s
  • platform
    windows7_x64
  • resource
    win7-20240704-en
  • resource tags

    arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
  • submitted
    17-08-2024 20:19

General

  • Target

    9b50e0fc98472269eaef7ae439af8330N.exe

  • Size

    392KB

  • MD5

    9b50e0fc98472269eaef7ae439af8330

  • SHA1

    bf6c17e5b7bff376ea6a27885929a59d444ff6ba

  • SHA256

    5d4cb9ce0d30179015c08a55968b74a09158578b84c652a0d31cd7e5fef52897

  • SHA512

    effd931d1fd6bbaa6ed57c87512b43009d612cbdf7f012bbfc1623c6055ac6d7722c06408260feed8d59fc9406c5ef03cd5f195a1d4cd81d0d88c0d098f9f054

  • SSDEEP

    3072:V+ESQ0EWVwZhKxC5Rt+k60Zh+qw6PYSsszfHZTZJ2lbaV2:DPA6wxmuJspr2lb6

Malware Config

Signatures

  • Adds policy Run key to start application 2 TTPs 2 IoCs
  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 5 IoCs
  • UPX packed file 14 IoCs

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

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Maps connected drives based on registry 3 TTPs 2 IoCs

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

  • Suspicious use of SetThreadContext 3 IoCs
  • Drops file in Program Files directory 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 8 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 16 IoCs
  • Suspicious use of SetWindowsHookEx 4 IoCs
  • Suspicious use of WriteProcessMemory 39 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\9b50e0fc98472269eaef7ae439af8330N.exe
    "C:\Users\Admin\AppData\Local\Temp\9b50e0fc98472269eaef7ae439af8330N.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2056
    • C:\Users\Admin\AppData\Local\Temp\9b50e0fc98472269eaef7ae439af8330N.exe
      "C:\Users\Admin\AppData\Local\Temp\9b50e0fc98472269eaef7ae439af8330N.exe"
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:4108
      • C:\Windows\SysWOW64\cmd.exe
        cmd /c ""C:\Users\Admin\AppData\Local\Temp\RVHFJ.bat" "
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:4236
        • C:\Windows\SysWOW64\reg.exe
          REG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /v "Skype" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\skype\skyrpe.exe" /f
          4⤵
          • Adds Run key to start application
          • System Location Discovery: System Language Discovery
          PID:4292
      • C:\Users\Admin\AppData\Roaming\skype\skyrpe.exe
        "C:\Users\Admin\AppData\Roaming\skype\skyrpe.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:4312
        • C:\Users\Admin\AppData\Roaming\skype\skyrpe.exe
          "C:\Users\Admin\AppData\Roaming\skype\skyrpe.exe"
          4⤵
          • Executes dropped EXE
          • System Location Discovery: System Language Discovery
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of SetWindowsHookEx
          PID:179104
        • C:\Users\Admin\AppData\Roaming\skype\skyrpe.exe
          "C:\Users\Admin\AppData\Roaming\skype\skyrpe.exe"
          4⤵
          • Executes dropped EXE
          • Maps connected drives based on registry
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious behavior: MapViewOfSection
          • Suspicious use of WriteProcessMemory
          PID:179164
          • C:\Windows\syswow64\svchost.exe
            C:\Windows\syswow64\svchost.exe
            5⤵
            • Adds policy Run key to start application
            • Drops file in Program Files directory
            • System Location Discovery: System Language Discovery
            PID:34888

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\RVHFJ.bat

    Filesize

    139B

    MD5

    0654f004b2e314bad7f75867e91da37d

    SHA1

    4232c22e7340b12108d86e3cb35ed288a3dbc7f1

    SHA256

    ead325a060300a9606a3f0f14694be39a3e4006a60c6c3eb0bea5d6f98192249

    SHA512

    dda135cdfca90a742d42b4c7a5e7f5df6580ec428302a8f0c311f5b92eb08dda75774e0c7497110faffbe2dfa02b30d2dfe35ec2848a275f53be8d930c7aa553

  • \Users\Admin\AppData\Roaming\skype\skyrpe.exe

    Filesize

    392KB

    MD5

    c67553c2c8519400da4fc018f3e69c26

    SHA1

    840257fec9b0b661da3f46d1251ca1b40e0f6761

    SHA256

    0fa2b9fb97d9e8e0a4300b6d1508af237a273ace5c5995a96a0744d834655da3

    SHA512

    a75ecf78849c56e1f3acdba3f90db2a2084668d1a2233693e2cc75fc9751e2d9c41f938aa4e97727ad0981313c1f7b8777340ca16f6adb855ea822b7a159f50f

  • memory/2056-53491-0x0000000000400000-0x0000000000462000-memory.dmp

    Filesize

    392KB

  • memory/2056-3-0x0000000000230000-0x0000000000231000-memory.dmp

    Filesize

    4KB

  • memory/2056-60-0x0000000000404000-0x0000000000405000-memory.dmp

    Filesize

    4KB

  • memory/2056-223-0x0000000000400000-0x0000000000462000-memory.dmp

    Filesize

    392KB

  • memory/2056-0-0x0000000000400000-0x0000000000462000-memory.dmp

    Filesize

    392KB

  • memory/4108-53481-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/4108-53531-0x00000000033A0000-0x0000000003402000-memory.dmp

    Filesize

    392KB

  • memory/4108-53489-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/4108-53490-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/4108-53492-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/4108-53485-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/4108-53483-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/4108-53533-0x00000000033A0000-0x0000000003402000-memory.dmp

    Filesize

    392KB

  • memory/4108-53532-0x00000000033A0000-0x0000000003402000-memory.dmp

    Filesize

    392KB

  • memory/4108-53487-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/4108-106983-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/4108-53687-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/4108-53689-0x00000000033A0000-0x0000000003402000-memory.dmp

    Filesize

    392KB

  • memory/4108-53690-0x00000000033A0000-0x0000000003402000-memory.dmp

    Filesize

    392KB

  • memory/4108-53691-0x00000000033A0000-0x0000000003402000-memory.dmp

    Filesize

    392KB

  • memory/4312-53692-0x0000000000400000-0x0000000000462000-memory.dmp

    Filesize

    392KB

  • memory/4312-106980-0x0000000000400000-0x0000000000462000-memory.dmp

    Filesize

    392KB

  • memory/4312-53535-0x0000000000400000-0x0000000000462000-memory.dmp

    Filesize

    392KB

  • memory/179164-106975-0x0000000000400000-0x0000000000405000-memory.dmp

    Filesize

    20KB

  • memory/179164-106986-0x0000000000400000-0x0000000000405000-memory.dmp

    Filesize

    20KB