Analysis

  • max time kernel
    146s
  • max time network
    150s
  • platform
    windows11-21h2_x64
  • resource
    win11-20240508-en
  • resource tags

    arch:x64arch:x86image:win11-20240508-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    23-05-2024 04:43

General

  • Target

    5ff269a233e48a6e174ac25474d70e0bb059991e1afe914efe8b79ae92488e80.exe

  • Size

    5.1MB

  • MD5

    f327c83a85487dfa0ffd18b6c09d0316

  • SHA1

    80bbbcf84f6ddca9f704f2c597b2366844cb4af4

  • SHA256

    5ff269a233e48a6e174ac25474d70e0bb059991e1afe914efe8b79ae92488e80

  • SHA512

    758123039f3f664c5422356edda77e1a63e0a08224b681e6da1a4e3f379cf271a193a2c10c2cfe65de28d822bfbafa23a674aac205b148148200f0682f53e8ac

  • SSDEEP

    98304:mNcyl/Z82R5tjq4wmE7xhQl1MAKsFHuiFskii0f/Ai:ycylB82RO4wh7jQlxHupwC

Malware Config

Signatures

  • Detect Socks5Systemz Payload 3 IoCs
  • Socks5Systemz

    Socks5Systemz is a botnet written in C++.

  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 3 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\5ff269a233e48a6e174ac25474d70e0bb059991e1afe914efe8b79ae92488e80.exe
    "C:\Users\Admin\AppData\Local\Temp\5ff269a233e48a6e174ac25474d70e0bb059991e1afe914efe8b79ae92488e80.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1216
    • C:\Users\Admin\AppData\Local\Temp\is-ABMOS.tmp\5ff269a233e48a6e174ac25474d70e0bb059991e1afe914efe8b79ae92488e80.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-ABMOS.tmp\5ff269a233e48a6e174ac25474d70e0bb059991e1afe914efe8b79ae92488e80.tmp" /SL5="$60206,5056821,54272,C:\Users\Admin\AppData\Local\Temp\5ff269a233e48a6e174ac25474d70e0bb059991e1afe914efe8b79ae92488e80.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:4368
      • C:\Users\Admin\AppData\Local\CyberSound AudioDirector\cybersoundaudiodirector.exe
        "C:\Users\Admin\AppData\Local\CyberSound AudioDirector\cybersoundaudiodirector.exe" -i
        3⤵
        • Executes dropped EXE
        PID:1404
      • C:\Users\Admin\AppData\Local\CyberSound AudioDirector\cybersoundaudiodirector.exe
        "C:\Users\Admin\AppData\Local\CyberSound AudioDirector\cybersoundaudiodirector.exe" -s
        3⤵
        • Executes dropped EXE
        PID:3652

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\CyberSound AudioDirector\cybersoundaudiodirector.exe
    Filesize

    2.3MB

    MD5

    e156d0447eddd50f81ddd1cbf936f200

    SHA1

    eac1d84399ec58b1038872a8312c13f9632a067e

    SHA256

    7dd92772be21decc1ee2f1defdb9815022db4f9831dc7f0a457f2f202702c310

    SHA512

    bb1748d9fe75f98f6a7b65b5243f1d20c1cdd1a046add7238aaa5efebe9512d011c9f611a0f20d7d8cceb50b04c8e8fe7537236c18cb154fb15b4bacbaa9ce1c

  • C:\Users\Admin\AppData\Local\Temp\is-60ANQ.tmp\_isetup\_iscrypt.dll
    Filesize

    2KB

    MD5

    a69559718ab506675e907fe49deb71e9

    SHA1

    bc8f404ffdb1960b50c12ff9413c893b56f2e36f

    SHA256

    2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

    SHA512

    e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

  • C:\Users\Admin\AppData\Local\Temp\is-60ANQ.tmp\_isetup\_isdecmp.dll
    Filesize

    32KB

    MD5

    b6f11a0ab7715f570f45900a1fe84732

    SHA1

    77b1201e535445af5ea94c1b03c0a1c34d67a77b

    SHA256

    e47dd306a9854599f02bc1b07ca6dfbd5220f8a1352faa9616d1a327de0bbf67

    SHA512

    78a757e67d21eb7cc95954df15e3eeff56113d6b40fb73f0c5f53304265cc52c79125d6f1b3655b64f9a411711b5b70f746080d708d7c222f4e65bad64b1b771

  • C:\Users\Admin\AppData\Local\Temp\is-ABMOS.tmp\5ff269a233e48a6e174ac25474d70e0bb059991e1afe914efe8b79ae92488e80.tmp
    Filesize

    680KB

    MD5

    0f0210b6ea9cadd6bfaafed90b236b80

    SHA1

    e54e625063b28b13a8aa0870a7fe3e329d79701d

    SHA256

    f2c278ea019d86265fbab58925b596336a091887006d9320668310788e85306e

    SHA512

    f5082900184f08c8eb5660692460398cf5fc1cbe7ca0b9f22a1564984db5acc7d81f7aff94783662e27933a2a7f0cb4d2758ebeff90a00083702de98ede5dfbc

  • memory/1216-76-0x0000000000400000-0x0000000000414000-memory.dmp
    Filesize

    80KB

  • memory/1216-3-0x0000000000401000-0x000000000040B000-memory.dmp
    Filesize

    40KB

  • memory/1216-0-0x0000000000400000-0x0000000000414000-memory.dmp
    Filesize

    80KB

  • memory/1404-65-0x0000000000400000-0x000000000065B000-memory.dmp
    Filesize

    2.4MB

  • memory/1404-71-0x0000000000400000-0x000000000065B000-memory.dmp
    Filesize

    2.4MB

  • memory/1404-69-0x0000000000400000-0x000000000065B000-memory.dmp
    Filesize

    2.4MB

  • memory/1404-66-0x0000000000400000-0x000000000065B000-memory.dmp
    Filesize

    2.4MB

  • memory/3652-81-0x0000000000400000-0x000000000065B000-memory.dmp
    Filesize

    2.4MB

  • memory/3652-97-0x0000000000400000-0x000000000065B000-memory.dmp
    Filesize

    2.4MB

  • memory/3652-75-0x0000000000400000-0x000000000065B000-memory.dmp
    Filesize

    2.4MB

  • memory/3652-126-0x0000000000400000-0x000000000065B000-memory.dmp
    Filesize

    2.4MB

  • memory/3652-78-0x0000000000400000-0x000000000065B000-memory.dmp
    Filesize

    2.4MB

  • memory/3652-123-0x0000000000400000-0x000000000065B000-memory.dmp
    Filesize

    2.4MB

  • memory/3652-82-0x0000000000400000-0x000000000065B000-memory.dmp
    Filesize

    2.4MB

  • memory/3652-85-0x0000000000400000-0x000000000065B000-memory.dmp
    Filesize

    2.4MB

  • memory/3652-88-0x0000000000400000-0x000000000065B000-memory.dmp
    Filesize

    2.4MB

  • memory/3652-91-0x0000000000400000-0x000000000065B000-memory.dmp
    Filesize

    2.4MB

  • memory/3652-94-0x0000000000870000-0x0000000000912000-memory.dmp
    Filesize

    648KB

  • memory/3652-73-0x0000000000400000-0x000000000065B000-memory.dmp
    Filesize

    2.4MB

  • memory/3652-102-0x0000000000400000-0x000000000065B000-memory.dmp
    Filesize

    2.4MB

  • memory/3652-105-0x0000000000400000-0x000000000065B000-memory.dmp
    Filesize

    2.4MB

  • memory/3652-108-0x0000000000400000-0x000000000065B000-memory.dmp
    Filesize

    2.4MB

  • memory/3652-111-0x0000000000400000-0x000000000065B000-memory.dmp
    Filesize

    2.4MB

  • memory/3652-114-0x0000000000400000-0x000000000065B000-memory.dmp
    Filesize

    2.4MB

  • memory/3652-117-0x0000000000400000-0x000000000065B000-memory.dmp
    Filesize

    2.4MB

  • memory/3652-119-0x0000000000870000-0x0000000000912000-memory.dmp
    Filesize

    648KB

  • memory/3652-118-0x0000000000870000-0x0000000000912000-memory.dmp
    Filesize

    648KB

  • memory/4368-10-0x0000000000400000-0x00000000004BA000-memory.dmp
    Filesize

    744KB

  • memory/4368-77-0x0000000000400000-0x00000000004BA000-memory.dmp
    Filesize

    744KB