Analysis

  • max time kernel
    150s
  • max time network
    123s
  • platform
    windows7_x64
  • resource
    win7v20201028
  • submitted
    26-11-2020 14:51

General

  • Target

    crypt.exe

  • Size

    416KB

  • MD5

    e793fdd19ba94ce44ffcafcb8439f376

  • SHA1

    7014752978ffe24dabd02e539cb5ec59c1429639

  • SHA256

    809cfc5886806460a65acf74e8611daa26cc71a231d12e05ef5c13377d474947

  • SHA512

    cf4b78ee838eb99fb47d07f5ed165f84a13d44d9d61936014d63eaa8a92610ad2ee34b592ddb8d73e5e2de6fff76cc9a4d1fc09ed994dd1ebaa2314b3088fd34

Malware Config

Signatures

  • UAC bypass 3 TTPs
  • Windows security bypass 2 TTPs
  • Disables taskbar notifications via registry modification
  • Windows security modification 2 TTPs 8 IoCs
  • Adds Run key to start application 2 TTPs 3 IoCs
  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 282 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of SendNotifyMessage 2 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • System policy modification 1 TTPs 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\crypt.exe
    "C:\Users\Admin\AppData\Local\Temp\crypt.exe"
    1⤵
    • Windows security modification
    • Adds Run key to start application
    • Checks whether UAC is enabled
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of SetWindowsHookEx
    • System policy modification
    PID:1904

Network

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Registry Run Keys / Startup Folder

1
T1060

Privilege Escalation

Bypass User Account Control

1
T1088

Defense Evasion

Bypass User Account Control

1
T1088

Disabling Security Tools

3
T1089

Modify Registry

5
T1112

Discovery

System Information Discovery

1
T1082

Replay Monitor

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Downloads