Analysis

  • max time kernel
    142s
  • max time network
    128s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240611-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240611-enlocale:en-usos:windows10-2004-x64system
  • submitted
    02-07-2024 00:26

General

  • Target

    45ca9c230cd679afa31065809e8a688a01d49aaa649364df206fb354243707c5.exe

  • Size

    5.1MB

  • MD5

    5749065dd1b4c717fc42a4346b8d70e5

  • SHA1

    90099afda4f639448a52859166f253ce8281d168

  • SHA256

    45ca9c230cd679afa31065809e8a688a01d49aaa649364df206fb354243707c5

  • SHA512

    e1be8e3e4c35e4998ce5170c7bb03280df683a90efebb8fae601bdb2545791b535282fcde403f3cfcf102a82bde3800293b46e96f76eef38a70fafa4f82767fb

  • SSDEEP

    98304:CsWvBQLWVDJo4LVdzPm6CD//wpbJhvRLw7eVbbt1MGArZQxy:jqB/1VdTm6yIpb/RPVLMGAlQE

Malware Config

Signatures

  • Detect Socks5Systemz Payload 1 IoCs
  • Socks5Systemz

    Socks5Systemz is a botnet written in C++.

  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 1 IoCs
  • Unexpected DNS network traffic destination 1 IoCs

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

  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\45ca9c230cd679afa31065809e8a688a01d49aaa649364df206fb354243707c5.exe
    "C:\Users\Admin\AppData\Local\Temp\45ca9c230cd679afa31065809e8a688a01d49aaa649364df206fb354243707c5.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4912
    • C:\Users\Admin\AppData\Local\Temp\is-U8MH6.tmp\45ca9c230cd679afa31065809e8a688a01d49aaa649364df206fb354243707c5.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-U8MH6.tmp\45ca9c230cd679afa31065809e8a688a01d49aaa649364df206fb354243707c5.tmp" /SL5="$8014C,5095021,54272,C:\Users\Admin\AppData\Local\Temp\45ca9c230cd679afa31065809e8a688a01d49aaa649364df206fb354243707c5.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:2564
      • C:\Users\Admin\AppData\Local\MP3Doctor Free 2020\mp3doctorfree32_64.exe
        "C:\Users\Admin\AppData\Local\MP3Doctor Free 2020\mp3doctorfree32_64.exe" -i
        3⤵
        • Executes dropped EXE
        PID:1788
      • C:\Users\Admin\AppData\Local\MP3Doctor Free 2020\mp3doctorfree32_64.exe
        "C:\Users\Admin\AppData\Local\MP3Doctor Free 2020\mp3doctorfree32_64.exe" -s
        3⤵
        • Executes dropped EXE
        PID:1432

Network

MITRE ATT&CK Matrix ATT&CK v13

Discovery

Query Registry

1
T1012

System Information Discovery

1
T1082

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\MP3Doctor Free 2020\mp3doctorfree32_64.exe
    Filesize

    3.7MB

    MD5

    458d3a2bd797a7c8adfbb4c6fe996897

    SHA1

    2efad8588a58386fb8955329f3abfd07a62e4b59

    SHA256

    7c3e9a5db05110c04a0e964018062effa1e37c0d64b76cff3b0287fd1f90b2e0

    SHA512

    57fccadc4ba9ea8cbb8f3f82d78f3e3677e2aeb4aaa0a6ceeb9dd50432e6f8cd35026d83a13be5a4aa115c3cef2333d4c61bb9eb961b9211fcc2d4b7ebb7a1ac

  • C:\Users\Admin\AppData\Local\Temp\is-Q1IO6.tmp\_isetup\_iscrypt.dll
    Filesize

    2KB

    MD5

    a69559718ab506675e907fe49deb71e9

    SHA1

    bc8f404ffdb1960b50c12ff9413c893b56f2e36f

    SHA256

    2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

    SHA512

    e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

  • C:\Users\Admin\AppData\Local\Temp\is-U8MH6.tmp\45ca9c230cd679afa31065809e8a688a01d49aaa649364df206fb354243707c5.tmp
    Filesize

    680KB

    MD5

    6f995e2d6c8d0d1d03cb3afcd1deafaf

    SHA1

    0319dbd8c7b44067b82fed5272059757a526b3aa

    SHA256

    cc4530fee96cf6e821fa1dbed0c46ac5310c57d6336999e3f93d29f78376f9eb

    SHA512

    207b4d327be81e71152ce35cb272362e9862e6002a6c01e9e9df37578c3764ac1c8d19b19e8e3b751162724490f06fea10611d7becabaff3863af993a90db16d

  • memory/1432-90-0x0000000000400000-0x00000000007C3000-memory.dmp
    Filesize

    3.8MB

  • memory/1432-75-0x0000000000400000-0x00000000007C3000-memory.dmp
    Filesize

    3.8MB

  • memory/1432-117-0x0000000000400000-0x00000000007C3000-memory.dmp
    Filesize

    3.8MB

  • memory/1432-114-0x0000000000400000-0x00000000007C3000-memory.dmp
    Filesize

    3.8MB

  • memory/1432-110-0x0000000000400000-0x00000000007C3000-memory.dmp
    Filesize

    3.8MB

  • memory/1432-107-0x0000000000400000-0x00000000007C3000-memory.dmp
    Filesize

    3.8MB

  • memory/1432-104-0x0000000000400000-0x00000000007C3000-memory.dmp
    Filesize

    3.8MB

  • memory/1432-67-0x0000000000400000-0x00000000007C3000-memory.dmp
    Filesize

    3.8MB

  • memory/1432-68-0x0000000000400000-0x00000000007C3000-memory.dmp
    Filesize

    3.8MB

  • memory/1432-101-0x0000000000400000-0x00000000007C3000-memory.dmp
    Filesize

    3.8MB

  • memory/1432-98-0x0000000000400000-0x00000000007C3000-memory.dmp
    Filesize

    3.8MB

  • memory/1432-71-0x0000000000400000-0x00000000007C3000-memory.dmp
    Filesize

    3.8MB

  • memory/1432-74-0x0000000000400000-0x00000000007C3000-memory.dmp
    Filesize

    3.8MB

  • memory/1432-95-0x0000000000400000-0x00000000007C3000-memory.dmp
    Filesize

    3.8MB

  • memory/1432-78-0x0000000000400000-0x00000000007C3000-memory.dmp
    Filesize

    3.8MB

  • memory/1432-81-0x0000000000400000-0x00000000007C3000-memory.dmp
    Filesize

    3.8MB

  • memory/1432-84-0x0000000000400000-0x00000000007C3000-memory.dmp
    Filesize

    3.8MB

  • memory/1432-87-0x0000000000A80000-0x0000000000B22000-memory.dmp
    Filesize

    648KB

  • memory/1788-60-0x0000000000400000-0x00000000007C3000-memory.dmp
    Filesize

    3.8MB

  • memory/1788-64-0x0000000000400000-0x00000000007C3000-memory.dmp
    Filesize

    3.8MB

  • memory/1788-63-0x0000000000400000-0x00000000007C3000-memory.dmp
    Filesize

    3.8MB

  • memory/1788-59-0x0000000000400000-0x00000000007C3000-memory.dmp
    Filesize

    3.8MB

  • memory/2564-10-0x0000000000400000-0x00000000004BA000-memory.dmp
    Filesize

    744KB

  • memory/2564-70-0x0000000000400000-0x00000000004BA000-memory.dmp
    Filesize

    744KB

  • memory/4912-0-0x0000000000400000-0x0000000000414000-memory.dmp
    Filesize

    80KB

  • memory/4912-69-0x0000000000400000-0x0000000000414000-memory.dmp
    Filesize

    80KB

  • memory/4912-3-0x0000000000401000-0x000000000040B000-memory.dmp
    Filesize

    40KB