Analysis

  • max time kernel
    119s
  • max time network
    105s
  • platform
    windows7_x64
  • resource
    win7-20241010-en
  • resource tags

    arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
  • submitted
    26-11-2024 22:36

General

  • Target

    591f67eb1ec7f3e4fdd98aa87403e02f2d4c2e3dda8c09d60cae5b187449cbfb.exe

  • Size

    392KB

  • MD5

    82e2ea96bd980f31e38f51638b635e7f

  • SHA1

    e5001915a2516fe86c6d04822bc669919991ee24

  • SHA256

    591f67eb1ec7f3e4fdd98aa87403e02f2d4c2e3dda8c09d60cae5b187449cbfb

  • SHA512

    564f98b8265597c93acdc5d6426089a5441598d38aac13ab1e16ec074b8291c3e8e176ded09bdf5eb24a700a6c1910416cbe45f1426d50a43e50cd4da219d97b

  • SSDEEP

    3072:V+ESQ0EWVwZhKxC5Rt+k60Zh+qw6PYSsszfHZTZJ2lbaV2K:DPA6wxmuJspr2lb6P

Malware Config

Signatures

  • Adds policy Run key to start application 2 TTPs 2 IoCs
  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 5 IoCs
  • 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
  • UPX packed file 15 IoCs

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

  • 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 17 IoCs
  • Suspicious use of SetWindowsHookEx 4 IoCs
  • Suspicious use of WriteProcessMemory 39 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\591f67eb1ec7f3e4fdd98aa87403e02f2d4c2e3dda8c09d60cae5b187449cbfb.exe
    "C:\Users\Admin\AppData\Local\Temp\591f67eb1ec7f3e4fdd98aa87403e02f2d4c2e3dda8c09d60cae5b187449cbfb.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2956
    • C:\Users\Admin\AppData\Local\Temp\591f67eb1ec7f3e4fdd98aa87403e02f2d4c2e3dda8c09d60cae5b187449cbfb.exe
      "C:\Users\Admin\AppData\Local\Temp\591f67eb1ec7f3e4fdd98aa87403e02f2d4c2e3dda8c09d60cae5b187449cbfb.exe"
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:3236
      • C:\Windows\SysWOW64\cmd.exe
        cmd /c ""C:\Users\Admin\AppData\Local\Temp\KGEVT.bat" "
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:3380
        • 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:3428
      • 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:3464
        • 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:178812
        • 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:178872
          • 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:179004

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    139B

    MD5

    0654f004b2e314bad7f75867e91da37d

    SHA1

    4232c22e7340b12108d86e3cb35ed288a3dbc7f1

    SHA256

    ead325a060300a9606a3f0f14694be39a3e4006a60c6c3eb0bea5d6f98192249

    SHA512

    dda135cdfca90a742d42b4c7a5e7f5df6580ec428302a8f0c311f5b92eb08dda75774e0c7497110faffbe2dfa02b30d2dfe35ec2848a275f53be8d930c7aa553

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

    Filesize

    392KB

    MD5

    3d4fce8824e6db5a8c910c449b94bc1b

    SHA1

    da8e84b4d98a48acefce51e863c4dd20a33a2670

    SHA256

    6b21088170105963f936421197568949e5655e57af0fcd2e96093808a2b4aa32

    SHA512

    590b373b54a087c901b92a29600aa0a75d023fe5426d9bc90b788794ba306ca6ceca719150b3759a4e1bb942a88ca36720742413a7057c5f3d238aa2a4880bf7

  • memory/2956-53490-0x0000000000400000-0x0000000000462000-memory.dmp

    Filesize

    392KB

  • memory/2956-3-0x00000000002B0000-0x00000000002B1000-memory.dmp

    Filesize

    4KB

  • memory/2956-59-0x0000000000404000-0x0000000000405000-memory.dmp

    Filesize

    4KB

  • memory/2956-223-0x0000000000400000-0x0000000000462000-memory.dmp

    Filesize

    392KB

  • memory/2956-0-0x0000000000400000-0x0000000000462000-memory.dmp

    Filesize

    392KB

  • memory/3236-53534-0x0000000003260000-0x00000000032C2000-memory.dmp

    Filesize

    392KB

  • memory/3236-53687-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/3236-53489-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/3236-53491-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/3236-53492-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/3236-53487-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/3236-53483-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/3236-53481-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/3236-53533-0x0000000003260000-0x00000000032C2000-memory.dmp

    Filesize

    392KB

  • memory/3236-53532-0x0000000003260000-0x00000000032C2000-memory.dmp

    Filesize

    392KB

  • memory/3236-53531-0x0000000003260000-0x00000000032C2000-memory.dmp

    Filesize

    392KB

  • memory/3236-53485-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/3236-53688-0x0000000003260000-0x00000000032C2000-memory.dmp

    Filesize

    392KB

  • memory/3236-53690-0x0000000003260000-0x00000000032C2000-memory.dmp

    Filesize

    392KB

  • memory/3236-53691-0x0000000003260000-0x00000000032C2000-memory.dmp

    Filesize

    392KB

  • memory/3236-53692-0x0000000003260000-0x00000000032C2000-memory.dmp

    Filesize

    392KB

  • memory/3236-106985-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/3464-106982-0x0000000000400000-0x0000000000462000-memory.dmp

    Filesize

    392KB

  • memory/3464-53693-0x0000000000400000-0x0000000000462000-memory.dmp

    Filesize

    392KB

  • memory/178812-106978-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/178872-106979-0x0000000000400000-0x0000000000405000-memory.dmp

    Filesize

    20KB

  • memory/178872-106988-0x0000000000400000-0x0000000000405000-memory.dmp

    Filesize

    20KB