Analysis

  • max time kernel
    187s
  • max time network
    192s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    04-12-2022 08:35

General

  • Target

    f0b895bf200ca7c224653c044080a86e3bf20f46ee938c28f360de5dce61d335.exe

  • Size

    64KB

  • MD5

    c02858a05aa5df233fa77a31ead0fb36

  • SHA1

    de8dffa685c4a98b8fcf444e07583bb7c5eba468

  • SHA256

    f0b895bf200ca7c224653c044080a86e3bf20f46ee938c28f360de5dce61d335

  • SHA512

    a8f7fe4a86d866b032239c81608e0e4a6be7b5ca857c7160e2bca96550203a060422cc3d5f2a75a15263d9cb77b33081f01f652545ab100853a8cba14ddddb1b

  • SSDEEP

    1536:oioQmpv0wuCOxxHquvrQiLnJ1fF1gXQvv9I4sdziNnNu4F68GsDl0nouy85:oioQcWFfKusiLJ1f8QvTuOnk4Is+out5

Malware Config

Signatures

  • Modifies firewall policy service 2 TTPs 14 IoCs
  • Modifies security service 2 TTPs 1 IoCs
  • Modifies visibility of file extensions in Explorer 2 TTPs 1 IoCs
  • Modifies visiblity of hidden/system files in Explorer 2 TTPs 1 IoCs
  • UAC bypass 3 TTPs 3 IoCs
  • Windows security bypass 2 TTPs 4 IoCs
  • Disables RegEdit via registry modification 1 IoCs
  • Disables Task Manager via registry modification
  • Drops file in Drivers directory 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Sets file execution options in registry 2 TTPs 64 IoCs
  • UPX packed file 12 IoCs

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

  • Drops startup file 1 IoCs
  • Loads dropped DLL 2 IoCs
  • Adds Run key to start application 2 TTPs 4 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies Internet Explorer settings 1 TTPs 11 IoCs
  • Modifies Internet Explorer start page 1 TTPs 2 IoCs
  • Modifies registry class 24 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 5 IoCs
  • Suspicious use of SetWindowsHookEx 5 IoCs
  • Suspicious use of WriteProcessMemory 13 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\f0b895bf200ca7c224653c044080a86e3bf20f46ee938c28f360de5dce61d335.exe
    "C:\Users\Admin\AppData\Local\Temp\f0b895bf200ca7c224653c044080a86e3bf20f46ee938c28f360de5dce61d335.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:268
    • C:\Users\Admin\E696D64614\winlogon.exe
      "C:\Users\Admin\E696D64614\winlogon.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of SetThreadContext
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:516
      • C:\Windows\SysWOW64\svchost.exe
        0
        3⤵
        • Modifies firewall policy service
        • Modifies security service
        • Modifies visibility of file extensions in Explorer
        • Modifies visiblity of hidden/system files in Explorer
        • UAC bypass
        • Windows security bypass
        • Disables RegEdit via registry modification
        • Drops file in Drivers directory
        • Sets file execution options in registry
        • Drops startup file
        • Adds Run key to start application
        • Modifies Internet Explorer settings
        • Modifies Internet Explorer start page
        • Modifies registry class
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        PID:1172
  • C:\Windows\system32\AUDIODG.EXE
    C:\Windows\system32\AUDIODG.EXE 0x550
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:928

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\E696D64614\winlogon.exe

    Filesize

    64KB

    MD5

    c02858a05aa5df233fa77a31ead0fb36

    SHA1

    de8dffa685c4a98b8fcf444e07583bb7c5eba468

    SHA256

    f0b895bf200ca7c224653c044080a86e3bf20f46ee938c28f360de5dce61d335

    SHA512

    a8f7fe4a86d866b032239c81608e0e4a6be7b5ca857c7160e2bca96550203a060422cc3d5f2a75a15263d9cb77b33081f01f652545ab100853a8cba14ddddb1b

  • C:\Users\Admin\E696D64614\winlogon.exe

    Filesize

    64KB

    MD5

    c02858a05aa5df233fa77a31ead0fb36

    SHA1

    de8dffa685c4a98b8fcf444e07583bb7c5eba468

    SHA256

    f0b895bf200ca7c224653c044080a86e3bf20f46ee938c28f360de5dce61d335

    SHA512

    a8f7fe4a86d866b032239c81608e0e4a6be7b5ca857c7160e2bca96550203a060422cc3d5f2a75a15263d9cb77b33081f01f652545ab100853a8cba14ddddb1b

  • \Users\Admin\E696D64614\winlogon.exe

    Filesize

    64KB

    MD5

    c02858a05aa5df233fa77a31ead0fb36

    SHA1

    de8dffa685c4a98b8fcf444e07583bb7c5eba468

    SHA256

    f0b895bf200ca7c224653c044080a86e3bf20f46ee938c28f360de5dce61d335

    SHA512

    a8f7fe4a86d866b032239c81608e0e4a6be7b5ca857c7160e2bca96550203a060422cc3d5f2a75a15263d9cb77b33081f01f652545ab100853a8cba14ddddb1b

  • \Users\Admin\E696D64614\winlogon.exe

    Filesize

    64KB

    MD5

    c02858a05aa5df233fa77a31ead0fb36

    SHA1

    de8dffa685c4a98b8fcf444e07583bb7c5eba468

    SHA256

    f0b895bf200ca7c224653c044080a86e3bf20f46ee938c28f360de5dce61d335

    SHA512

    a8f7fe4a86d866b032239c81608e0e4a6be7b5ca857c7160e2bca96550203a060422cc3d5f2a75a15263d9cb77b33081f01f652545ab100853a8cba14ddddb1b

  • memory/268-61-0x0000000000400000-0x000000000043C000-memory.dmp

    Filesize

    240KB

  • memory/268-56-0x0000000075F01000-0x0000000075F03000-memory.dmp

    Filesize

    8KB

  • memory/516-64-0x0000000000400000-0x000000000043C000-memory.dmp

    Filesize

    240KB

  • memory/516-59-0x0000000000000000-mapping.dmp

  • memory/516-75-0x0000000000400000-0x000000000043C000-memory.dmp

    Filesize

    240KB

  • memory/1172-65-0x0000000000400000-0x0000000000425000-memory.dmp

    Filesize

    148KB

  • memory/1172-66-0x0000000000422F70-mapping.dmp

  • memory/1172-68-0x0000000000400000-0x0000000000425000-memory.dmp

    Filesize

    148KB

  • memory/1172-69-0x0000000000400000-0x0000000000425000-memory.dmp

    Filesize

    148KB

  • memory/1172-72-0x0000000000400000-0x0000000000425000-memory.dmp

    Filesize

    148KB

  • memory/1172-76-0x0000000000400000-0x0000000000425000-memory.dmp

    Filesize

    148KB

  • memory/1172-77-0x0000000003A80000-0x0000000003E92000-memory.dmp

    Filesize

    4.1MB