Analysis

  • max time kernel
    150s
  • max time network
    99s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

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

General

  • Target

    240174d446dcde189dff27555ee0fe34620e482e0fc7e3b92f8b7261c6c3dacd.exe

  • Size

    317KB

  • MD5

    415b52543a92106f55796f445f880750

  • SHA1

    0ebd987235e5a22f132908895b1a858a4586b18b

  • SHA256

    240174d446dcde189dff27555ee0fe34620e482e0fc7e3b92f8b7261c6c3dacd

  • SHA512

    253d7ae1d158fe351da72694d182ab346c35a2923a0aa4fedd8da2a475dd741b8e31eb12cdc89074591283db3b3d11e1a36b8f35429187bdfac2e99782bda817

  • SSDEEP

    3072:vSQ0EWVwZhKxC5Rt+k60Zh+qw6PYSsszfHZTZJ2lbaV2:vPA6wxmuJspr2lb6

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 18 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 40 IoCs
  • Suspicious use of SetWindowsHookEx 4 IoCs
  • Suspicious use of WriteProcessMemory 39 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\240174d446dcde189dff27555ee0fe34620e482e0fc7e3b92f8b7261c6c3dacd.exe
    "C:\Users\Admin\AppData\Local\Temp\240174d446dcde189dff27555ee0fe34620e482e0fc7e3b92f8b7261c6c3dacd.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2180
    • C:\Users\Admin\AppData\Local\Temp\240174d446dcde189dff27555ee0fe34620e482e0fc7e3b92f8b7261c6c3dacd.exe
      "C:\Users\Admin\AppData\Local\Temp\240174d446dcde189dff27555ee0fe34620e482e0fc7e3b92f8b7261c6c3dacd.exe"
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2916
      • C:\Windows\SysWOW64\cmd.exe
        cmd /c ""C:\Users\Admin\AppData\Local\Temp\OSNUJ.bat" "
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:2460
        • 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:376
      • 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:536
        • 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:80148
        • 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:80264
          • 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:80380

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    139B

    MD5

    0654f004b2e314bad7f75867e91da37d

    SHA1

    4232c22e7340b12108d86e3cb35ed288a3dbc7f1

    SHA256

    ead325a060300a9606a3f0f14694be39a3e4006a60c6c3eb0bea5d6f98192249

    SHA512

    dda135cdfca90a742d42b4c7a5e7f5df6580ec428302a8f0c311f5b92eb08dda75774e0c7497110faffbe2dfa02b30d2dfe35ec2848a275f53be8d930c7aa553

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

    Filesize

    317KB

    MD5

    7e1d71fb7ec04ed57151697797e9db13

    SHA1

    b4650717a81f735cb29bb48e373a6ac71358dcaf

    SHA256

    f69261de0272a3916d852a099d788680f4ef5d0f16e7e2bc192f6321bb4e2de9

    SHA512

    f0e4cdeff884403c0861b8ced9fe6cce04fdc59958eaecd99c64ed2262182040e0ec5ab8ca28651226bb95977b3f392c0122c2dd0a6c1bb4b5ede5f8f6b06a07

  • memory/536-106982-0x0000000000400000-0x0000000000452000-memory.dmp

    Filesize

    328KB

  • memory/536-53695-0x0000000000400000-0x0000000000452000-memory.dmp

    Filesize

    328KB

  • memory/536-53537-0x0000000000400000-0x0000000000452000-memory.dmp

    Filesize

    328KB

  • memory/2180-3-0x0000000000240000-0x0000000000241000-memory.dmp

    Filesize

    4KB

  • memory/2180-74-0x0000000000404000-0x0000000000405000-memory.dmp

    Filesize

    4KB

  • memory/2180-223-0x0000000000400000-0x0000000000452000-memory.dmp

    Filesize

    328KB

  • memory/2180-53491-0x0000000000400000-0x0000000000452000-memory.dmp

    Filesize

    328KB

  • memory/2180-0-0x0000000000400000-0x0000000000452000-memory.dmp

    Filesize

    328KB

  • memory/2180-53487-0x0000000002530000-0x0000000002582000-memory.dmp

    Filesize

    328KB

  • memory/2916-53535-0x0000000003140000-0x0000000003192000-memory.dmp

    Filesize

    328KB

  • memory/2916-53690-0x0000000003140000-0x0000000003192000-memory.dmp

    Filesize

    328KB

  • memory/2916-53493-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/2916-53483-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/2916-53485-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/2916-53488-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2916-53534-0x0000000003140000-0x0000000003192000-memory.dmp

    Filesize

    328KB

  • memory/2916-53533-0x0000000003140000-0x0000000003192000-memory.dmp

    Filesize

    328KB

  • memory/2916-53532-0x0000000003140000-0x0000000003192000-memory.dmp

    Filesize

    328KB

  • memory/2916-53489-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/2916-53689-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/2916-53481-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/2916-53692-0x0000000003140000-0x0000000003192000-memory.dmp

    Filesize

    328KB

  • memory/2916-53693-0x0000000003140000-0x0000000003192000-memory.dmp

    Filesize

    328KB

  • memory/2916-53694-0x0000000003140000-0x0000000003192000-memory.dmp

    Filesize

    328KB

  • memory/2916-53490-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/2916-106985-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/2916-53492-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/80148-106969-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/80148-106997-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/80264-106979-0x0000000000400000-0x0000000000405000-memory.dmp

    Filesize

    20KB

  • memory/80264-106988-0x0000000000400000-0x0000000000405000-memory.dmp

    Filesize

    20KB