Analysis

  • max time kernel
    149s
  • max time network
    154s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    21/10/2022, 05:25

General

  • Target

    a1bc30ae56247a8a7c924b8c04284359c24466b1e14d70fdeb91eb2fcc2700bd.exe

  • Size

    37KB

  • MD5

    705dd8ca51dd67a5387469ea2d5bb299

  • SHA1

    7a9fe18398025107b8329853f1ee965c63c9fce5

  • SHA256

    a1bc30ae56247a8a7c924b8c04284359c24466b1e14d70fdeb91eb2fcc2700bd

  • SHA512

    1786817600c77bc8abfcea5c54ea3b55a99745f9f9c385916d92f89d604879110406252b8ea15c591d2a6259db4a168caf21b0ae0d125e32f0c1c6a074e4632b

  • SSDEEP

    768:jpuxbbb93pfzxWt7QYQ8IgDidhHPjAJYvHF0lwY437avXKrnrE:j0Rbb5WRQYt9ir/2wraT

Score
7/10

Malware Config

Signatures

  • Unexpected DNS network traffic destination 5 IoCs

    Network traffic to other servers than the configured DNS servers was detected on the DNS port.

  • Suspicious use of SetThreadContext 1 IoCs
  • Drops file in Windows directory 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies registry class 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a1bc30ae56247a8a7c924b8c04284359c24466b1e14d70fdeb91eb2fcc2700bd.exe
    "C:\Users\Admin\AppData\Local\Temp\a1bc30ae56247a8a7c924b8c04284359c24466b1e14d70fdeb91eb2fcc2700bd.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:4912
    • C:\Users\Admin\AppData\Local\Temp\a1bc30ae56247a8a7c924b8c04284359c24466b1e14d70fdeb91eb2fcc2700bd.exe
      C:\Users\Admin\AppData\Local\Temp\a1bc30ae56247a8a7c924b8c04284359c24466b1e14d70fdeb91eb2fcc2700bd.exe
      2⤵
      • Drops file in Windows directory
      • Modifies registry class
      • Suspicious behavior: EnumeratesProcesses
      PID:5108
  • C:\Windows\System32\rundll32.exe
    C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
    1⤵
      PID:228

    Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • memory/4912-133-0x00000000005B0000-0x00000000005B7000-memory.dmp

            Filesize

            28KB

          • memory/4912-132-0x00000000005B0000-0x00000000005B7000-memory.dmp

            Filesize

            28KB

          • memory/4912-134-0x00000000005B0000-0x00000000005B7000-memory.dmp

            Filesize

            28KB

          • memory/4912-136-0x00000000005B0000-0x00000000005B7000-memory.dmp

            Filesize

            28KB

          • memory/4912-135-0x00000000005B0000-0x00000000005B7000-memory.dmp

            Filesize

            28KB

          • memory/4912-137-0x00000000005B0000-0x00000000005B7000-memory.dmp

            Filesize

            28KB

          • memory/4912-138-0x00000000005B0000-0x00000000005B7000-memory.dmp

            Filesize

            28KB

          • memory/4912-139-0x00000000005B0000-0x00000000005B7000-memory.dmp

            Filesize

            28KB

          • memory/5108-141-0x0000000000400000-0x0000000000409000-memory.dmp

            Filesize

            36KB

          • memory/5108-143-0x0000000000400000-0x0000000000409000-memory.dmp

            Filesize

            36KB

          • memory/5108-144-0x0000000000400000-0x0000000000409000-memory.dmp

            Filesize

            36KB