Analysis

  • max time kernel
    145s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230220-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
  • submitted
    14-06-2023 17:52

General

  • Target

    vnc-4_1_3-x86_win32.exe

  • Size

    724KB

  • MD5

    790856e8ae34f0ac3eb40e031cf7a47a

  • SHA1

    fb500f585127ae25c3a5d2153d0740c2ac6fd946

  • SHA256

    21d04c62e49ca21daf3f98fa503edb61cee610ebd185e0b34cac4ba44638db19

  • SHA512

    e58f42cef0a515c1a4ae922af15ebc06bcd46e36607c5092e6811a97766dff04869c802368a5cfc290886972634de0024e31b93ac26aa7b6ca08ad4e08dd3110

  • SSDEEP

    12288:E2UtLvkQcEYXOmVNEfTC21h9vEwhy0wsiqHElPScqKvnY3QyunoYcS5KB:E2UpCEYXVVmbC21hZ8psi7l8YaXas

Score
7/10

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\vnc-4_1_3-x86_win32.exe
    "C:\Users\Admin\AppData\Local\Temp\vnc-4_1_3-x86_win32.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1128
    • C:\Users\Admin\AppData\Local\Temp\is-POTVP.tmp\vnc-4_1_3-x86_win32.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-POTVP.tmp\vnc-4_1_3-x86_win32.tmp" /SL5="$B0054,488918,53248,C:\Users\Admin\AppData\Local\Temp\vnc-4_1_3-x86_win32.exe"
      2⤵
      • Executes dropped EXE
      PID:4944

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\is-POTVP.tmp\vnc-4_1_3-x86_win32.tmp

    Filesize

    669KB

    MD5

    52950ac9e2b481453082f096120e355a

    SHA1

    159c09db1abcee9114b4f792ffba255c78a6e6c3

    SHA256

    25fbc88c7c967266f041ae4d47c2eae0b96086f9e440cca10729103aee7ef6cd

    SHA512

    5b61c28bbcaedadb3b6cd3bb8a392d18016c354c4c16e01395930666addc95994333dfc45bea1a1844f6f1585e79c729136d3714ac118b5848becde0bdb182ba

  • C:\Users\Admin\AppData\Local\Temp\is-POTVP.tmp\vnc-4_1_3-x86_win32.tmp

    Filesize

    669KB

    MD5

    52950ac9e2b481453082f096120e355a

    SHA1

    159c09db1abcee9114b4f792ffba255c78a6e6c3

    SHA256

    25fbc88c7c967266f041ae4d47c2eae0b96086f9e440cca10729103aee7ef6cd

    SHA512

    5b61c28bbcaedadb3b6cd3bb8a392d18016c354c4c16e01395930666addc95994333dfc45bea1a1844f6f1585e79c729136d3714ac118b5848becde0bdb182ba

  • memory/1128-133-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/1128-145-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/4944-144-0x0000000002230000-0x0000000002231000-memory.dmp

    Filesize

    4KB

  • memory/4944-146-0x0000000000400000-0x00000000004B6000-memory.dmp

    Filesize

    728KB