Analysis

  • max time kernel
    170s
  • max time network
    181s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    27-11-2022 14:43

General

  • Target

    e5b5062e453eccd7e46e5884f6f10a26c0214d8d032631b542009d06b84cfb38.exe

  • Size

    173KB

  • MD5

    17ea31f59b12985dcb26f6ae6fbed7fb

  • SHA1

    532f83e0a93f8af368da32d08d54b6452e13c107

  • SHA256

    e5b5062e453eccd7e46e5884f6f10a26c0214d8d032631b542009d06b84cfb38

  • SHA512

    1a4273c8376c4cc7dd2f0eeb97098fe8bf1451eab9de6bbf62d73881885dcda69bb25617543e98cf865414efa00307877cca60b3da698fee7788d94d14f947b9

  • SSDEEP

    3072:3+Fv3GLUtN3kO4AyEymgAeB86rbmkDC8Z0kdBLcqMpWm:3svWQtN3sDi6rbmtq06L9I

Malware Config

Signatures

  • CryptOne packer 6 IoCs

    Detects CryptOne packer defined in NCC blogpost.

  • Adds Run key to start application 2 TTPs 2 IoCs
  • Enumerates connected drives 3 TTPs 24 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Suspicious use of SetThreadContext 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 9 IoCs
  • Suspicious behavior: RenamesItself 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of WriteProcessMemory 38 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\e5b5062e453eccd7e46e5884f6f10a26c0214d8d032631b542009d06b84cfb38.exe
    "C:\Users\Admin\AppData\Local\Temp\e5b5062e453eccd7e46e5884f6f10a26c0214d8d032631b542009d06b84cfb38.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:4380
    • C:\Users\Admin\AppData\Local\Temp\e5b5062e453eccd7e46e5884f6f10a26c0214d8d032631b542009d06b84cfb38.exe
      "C:\Users\Admin\AppData\Local\Temp\e5b5062e453eccd7e46e5884f6f10a26c0214d8d032631b542009d06b84cfb38.exe"
      2⤵
      • Suspicious use of SetThreadContext
      • Suspicious behavior: RenamesItself
      • Suspicious use of WriteProcessMemory
      PID:3256
      • C:\Windows\SysWOW64\svchost.exe
        "C:\Windows\SysWOW64\svchost.exe"
        3⤵
        • Adds Run key to start application
        • Enumerates connected drives
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:3688
        • C:\Windows\SysWOW64\mspaint.exe
          "C:\Windows\SysWOW64\mspaint.exe"
          4⤵
          • Adds Run key to start application
          • Enumerates connected drives
          • Suspicious use of AdjustPrivilegeToken
          PID:5016
      • C:\Windows\SysWOW64\calc.exe
        "C:\Windows\SysWOW64\calc.exe"
        3⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:2332
      • C:\Users\Admin\AppData\Local\Temp\e5b5062e453eccd7e46e5884f6f10a26c0214d8d032631b542009d06b84cfb38.exe
        "C:\Users\Admin\AppData\Local\Temp\e5b5062e453eccd7e46e5884f6f10a26c0214d8d032631b542009d06b84cfb38.exe"
        3⤵
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:4936

Network

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Registry Run Keys / Startup Folder

1
T1060

Defense Evasion

Modify Registry

1
T1112

Discovery

Query Registry

1
T1012

Peripheral Device Discovery

1
T1120

System Information Discovery

1
T1082

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/2332-137-0x0000000000000000-mapping.dmp
  • memory/2332-154-0x0000000002B50000-0x0000000002B9E000-memory.dmp
    Filesize

    312KB

  • memory/3256-146-0x0000000000400000-0x0000000000429000-memory.dmp
    Filesize

    164KB

  • memory/3256-133-0x0000000000400000-0x0000000000429000-memory.dmp
    Filesize

    164KB

  • memory/3256-132-0x0000000000000000-mapping.dmp
  • memory/3688-136-0x0000000000000000-mapping.dmp
  • memory/3688-153-0x0000000000410000-0x000000000045E000-memory.dmp
    Filesize

    312KB

  • memory/3688-148-0x00000000001A0000-0x00000000001C9000-memory.dmp
    Filesize

    164KB

  • memory/4380-135-0x00000000005D0000-0x00000000005E4000-memory.dmp
    Filesize

    80KB

  • memory/4936-149-0x0000000000400000-0x000000000044E000-memory.dmp
    Filesize

    312KB

  • memory/4936-143-0x0000000000000000-mapping.dmp
  • memory/4936-144-0x0000000000400000-0x000000000044E000-memory.dmp
    Filesize

    312KB

  • memory/4936-151-0x0000000000400000-0x000000000044E000-memory.dmp
    Filesize

    312KB

  • memory/4936-147-0x0000000000400000-0x000000000044E000-memory.dmp
    Filesize

    312KB

  • memory/5016-150-0x0000000000480000-0x00000000004A9000-memory.dmp
    Filesize

    164KB

  • memory/5016-141-0x0000000000480000-0x00000000004A9000-memory.dmp
    Filesize

    164KB

  • memory/5016-142-0x0000000000480000-0x00000000004A9000-memory.dmp
    Filesize

    164KB

  • memory/5016-140-0x0000000000480000-0x00000000004A9000-memory.dmp
    Filesize

    164KB

  • memory/5016-152-0x00000000004C0000-0x000000000050E000-memory.dmp
    Filesize

    312KB

  • memory/5016-139-0x0000000000480000-0x00000000004A9000-memory.dmp
    Filesize

    164KB

  • memory/5016-138-0x0000000000000000-mapping.dmp
  • memory/5016-155-0x0000000000480000-0x00000000004A9000-memory.dmp
    Filesize

    164KB

  • memory/5016-156-0x00000000004C0000-0x000000000050E000-memory.dmp
    Filesize

    312KB