Analysis

  • max time kernel
    151s
  • max time network
    79s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    28-10-2022 18:24

General

  • Target

    891491eec23ffa62005a8220fbeade4445e603664ad202c7fc98d953db79b6b8.exe

  • Size

    154KB

  • MD5

    0cc7019af526b9ed1dec38f34e970925

  • SHA1

    e9c63bfa5d2edbe1e559b9653a92ce52232e99e9

  • SHA256

    891491eec23ffa62005a8220fbeade4445e603664ad202c7fc98d953db79b6b8

  • SHA512

    34578198cbda9a0b2c2d6d612f418add082e815c60564b38c8414197aa5a1f96f2861a61c6e99fd77a3a1ce01373f8723929eab9ffe7d0d1ef4b8b976d2961ed

  • SSDEEP

    1536:z5pipAC24eEzdgSRAuspgZZJU9DcChEbIgrM1/jcK+RwW+B0DSjz0pDZOZBmZqRS:vCfz+JcCU7rM9l3rgg91uH3

Score
10/10

Malware Config

Signatures

  • Modifies visiblity of hidden/system files in Explorer 2 TTPs 2 IoCs
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 2 IoCs
  • Adds Run key to start application 2 TTPs 29 IoCs
  • Maps connected drives based on registry 3 TTPs 4 IoCs

    Disk information is often read in order to detect sandboxing environments.

  • Drops autorun.inf file 1 TTPs 1 IoCs

    Malware can abuse Windows Autorun to spread further via attached volumes.

  • Suspicious use of SetThreadContext 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of SetWindowsHookEx 4 IoCs
  • Suspicious use of WriteProcessMemory 24 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\891491eec23ffa62005a8220fbeade4445e603664ad202c7fc98d953db79b6b8.exe
    "C:\Users\Admin\AppData\Local\Temp\891491eec23ffa62005a8220fbeade4445e603664ad202c7fc98d953db79b6b8.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1416
    • C:\Users\Admin\AppData\Local\Temp\891491eec23ffa62005a8220fbeade4445e603664ad202c7fc98d953db79b6b8.exe
      71
      2⤵
      • Modifies visiblity of hidden/system files in Explorer
      • Loads dropped DLL
      • Adds Run key to start application
      • Maps connected drives based on registry
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:540
      • C:\Users\Admin\vuodaif.exe
        "C:\Users\Admin\vuodaif.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:912
        • C:\Users\Admin\vuodaif.exe
          71
          4⤵
          • Modifies visiblity of hidden/system files in Explorer
          • Executes dropped EXE
          • Adds Run key to start application
          • Maps connected drives based on registry
          • Drops autorun.inf file
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of SetWindowsHookEx
          PID:1080

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\vuodaif.exe

    Filesize

    154KB

    MD5

    0cc7019af526b9ed1dec38f34e970925

    SHA1

    e9c63bfa5d2edbe1e559b9653a92ce52232e99e9

    SHA256

    891491eec23ffa62005a8220fbeade4445e603664ad202c7fc98d953db79b6b8

    SHA512

    34578198cbda9a0b2c2d6d612f418add082e815c60564b38c8414197aa5a1f96f2861a61c6e99fd77a3a1ce01373f8723929eab9ffe7d0d1ef4b8b976d2961ed

  • C:\Users\Admin\vuodaif.exe

    Filesize

    154KB

    MD5

    0cc7019af526b9ed1dec38f34e970925

    SHA1

    e9c63bfa5d2edbe1e559b9653a92ce52232e99e9

    SHA256

    891491eec23ffa62005a8220fbeade4445e603664ad202c7fc98d953db79b6b8

    SHA512

    34578198cbda9a0b2c2d6d612f418add082e815c60564b38c8414197aa5a1f96f2861a61c6e99fd77a3a1ce01373f8723929eab9ffe7d0d1ef4b8b976d2961ed

  • C:\Users\Admin\vuodaif.exe

    Filesize

    154KB

    MD5

    0cc7019af526b9ed1dec38f34e970925

    SHA1

    e9c63bfa5d2edbe1e559b9653a92ce52232e99e9

    SHA256

    891491eec23ffa62005a8220fbeade4445e603664ad202c7fc98d953db79b6b8

    SHA512

    34578198cbda9a0b2c2d6d612f418add082e815c60564b38c8414197aa5a1f96f2861a61c6e99fd77a3a1ce01373f8723929eab9ffe7d0d1ef4b8b976d2961ed

  • \Users\Admin\vuodaif.exe

    Filesize

    154KB

    MD5

    0cc7019af526b9ed1dec38f34e970925

    SHA1

    e9c63bfa5d2edbe1e559b9653a92ce52232e99e9

    SHA256

    891491eec23ffa62005a8220fbeade4445e603664ad202c7fc98d953db79b6b8

    SHA512

    34578198cbda9a0b2c2d6d612f418add082e815c60564b38c8414197aa5a1f96f2861a61c6e99fd77a3a1ce01373f8723929eab9ffe7d0d1ef4b8b976d2961ed

  • \Users\Admin\vuodaif.exe

    Filesize

    154KB

    MD5

    0cc7019af526b9ed1dec38f34e970925

    SHA1

    e9c63bfa5d2edbe1e559b9653a92ce52232e99e9

    SHA256

    891491eec23ffa62005a8220fbeade4445e603664ad202c7fc98d953db79b6b8

    SHA512

    34578198cbda9a0b2c2d6d612f418add082e815c60564b38c8414197aa5a1f96f2861a61c6e99fd77a3a1ce01373f8723929eab9ffe7d0d1ef4b8b976d2961ed

  • memory/540-63-0x0000000075E81000-0x0000000075E83000-memory.dmp

    Filesize

    8KB

  • memory/540-56-0x0000000000400000-0x0000000000413000-memory.dmp

    Filesize

    76KB

  • memory/540-62-0x0000000000400000-0x0000000000413000-memory.dmp

    Filesize

    76KB

  • memory/540-59-0x0000000000400000-0x0000000000413000-memory.dmp

    Filesize

    76KB

  • memory/540-80-0x0000000000400000-0x0000000000413000-memory.dmp

    Filesize

    76KB

  • memory/1080-78-0x0000000000400000-0x0000000000413000-memory.dmp

    Filesize

    76KB

  • memory/1080-81-0x0000000000400000-0x0000000000413000-memory.dmp

    Filesize

    76KB