Analysis

  • max time kernel
    151s
  • max time network
    134s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    06/12/2022, 10:59

General

  • Target

    9c62fa0ae5b9680351c9b8d9f78af3dfe0117848bd50d0f34479f41de7f1258f.exe

  • Size

    164KB

  • MD5

    aaf2166b1022c9305d88c87ef29af18c

  • SHA1

    1b62395ae78b0b87374009ad950fda7c906fd3be

  • SHA256

    9c62fa0ae5b9680351c9b8d9f78af3dfe0117848bd50d0f34479f41de7f1258f

  • SHA512

    b602f250443e62efd6ee7d51d43ca37cb295dc4b97f576f60748281e3939db813d8001df49937b64b2616b3cb1ea18d96a90f2cee9b2fcec565ba08e9e4fcc6f

  • SSDEEP

    1536:c6QiUVV3v5AeIIYY5GAUyIBewtGfBLkG7pqY6m8tVu+wOm:c6B6Noy4gtuA+zm

Malware Config

Signatures

  • 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 1 IoCs
  • 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 5 IoCs

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

  • 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 10 IoCs
  • Modifies Internet Explorer start page 1 TTPs 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 5 IoCs
  • Suspicious use of WriteProcessMemory 13 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\9c62fa0ae5b9680351c9b8d9f78af3dfe0117848bd50d0f34479f41de7f1258f.exe
    "C:\Users\Admin\AppData\Local\Temp\9c62fa0ae5b9680351c9b8d9f78af3dfe0117848bd50d0f34479f41de7f1258f.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1608
    • C:\Users\Admin\Admin1\winlogon.exe
      "C:\Users\Admin\Admin1\winlogon.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of SetThreadContext
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:1416
      • C:\Windows\SysWOW64\svchost.exe
        0
        3⤵
        • Modifies security service
        • Modifies visibility of file extensions in Explorer
        • Modifies visiblity of hidden/system files in Explorer
        • UAC bypass
        • Windows security bypass
        • Drops file in Drivers directory
        • Sets file execution options in registry
        • Adds Run key to start application
        • Modifies Internet Explorer settings
        • Modifies Internet Explorer start page
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        PID:1316

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\Admin1\winlogon.exe

    Filesize

    164KB

    MD5

    aaf2166b1022c9305d88c87ef29af18c

    SHA1

    1b62395ae78b0b87374009ad950fda7c906fd3be

    SHA256

    9c62fa0ae5b9680351c9b8d9f78af3dfe0117848bd50d0f34479f41de7f1258f

    SHA512

    b602f250443e62efd6ee7d51d43ca37cb295dc4b97f576f60748281e3939db813d8001df49937b64b2616b3cb1ea18d96a90f2cee9b2fcec565ba08e9e4fcc6f

  • \Users\Admin\Admin1\winlogon.exe

    Filesize

    164KB

    MD5

    aaf2166b1022c9305d88c87ef29af18c

    SHA1

    1b62395ae78b0b87374009ad950fda7c906fd3be

    SHA256

    9c62fa0ae5b9680351c9b8d9f78af3dfe0117848bd50d0f34479f41de7f1258f

    SHA512

    b602f250443e62efd6ee7d51d43ca37cb295dc4b97f576f60748281e3939db813d8001df49937b64b2616b3cb1ea18d96a90f2cee9b2fcec565ba08e9e4fcc6f

  • \Users\Admin\Admin1\winlogon.exe

    Filesize

    164KB

    MD5

    aaf2166b1022c9305d88c87ef29af18c

    SHA1

    1b62395ae78b0b87374009ad950fda7c906fd3be

    SHA256

    9c62fa0ae5b9680351c9b8d9f78af3dfe0117848bd50d0f34479f41de7f1258f

    SHA512

    b602f250443e62efd6ee7d51d43ca37cb295dc4b97f576f60748281e3939db813d8001df49937b64b2616b3cb1ea18d96a90f2cee9b2fcec565ba08e9e4fcc6f

  • memory/1316-63-0x0000000000400000-0x000000000041E000-memory.dmp

    Filesize

    120KB

  • memory/1316-66-0x0000000000400000-0x000000000041E000-memory.dmp

    Filesize

    120KB

  • memory/1316-67-0x0000000000400000-0x000000000041E000-memory.dmp

    Filesize

    120KB

  • memory/1316-71-0x0000000000400000-0x000000000041E000-memory.dmp

    Filesize

    120KB

  • memory/1316-72-0x0000000000400000-0x000000000041E000-memory.dmp

    Filesize

    120KB

  • memory/1608-56-0x0000000075A91000-0x0000000075A93000-memory.dmp

    Filesize

    8KB