Analysis

  • max time kernel
    297s
  • max time network
    259s
  • platform
    windows7_x64
  • resource
    win7-20240611-en
  • resource tags

    arch:x64arch:x86image:win7-20240611-enlocale:en-usos:windows7-x64system
  • submitted
    20-06-2024 23:04

General

  • Target

    af503d0b9b166ef84a29051153ce9e24c36e0466928d47b0a9fec26e9bec3a19.exe

  • Size

    4.9MB

  • MD5

    8169c9f2327f1cf2e695ef76f349a715

  • SHA1

    89c1306d77f525bf18e96e7734ed722242dbb579

  • SHA256

    af503d0b9b166ef84a29051153ce9e24c36e0466928d47b0a9fec26e9bec3a19

  • SHA512

    a82cbef9ab2e61048cfee6b89a655a27295fe431406873785948566f1fcbaf43adc5105fe2edbe0fd303271ac3c31cb5a3e05d1cebaa008bd4af51b5e214a8c1

  • SSDEEP

    98304:mg721aYMPMJIcGcR3F7xAJhu6uGJFhAkCwea9/E4J3z9kIq+uGnFnnXlcBll:a1aCOcGsv0PueFmBwW4JDlnFnXlcBll

Malware Config

Extracted

Family

socks5systemz

C2

dtetdqv.info

http://dtetdqv.info/search/?q=67e28dd86f5ff42d4509ac187c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4de8889b5e4fa9281ae978f771ea771795af8e05c645db22f31df92d8b38e316a667d307eca743ec4c2b07b52966923a6f87fd15c7ed9c

Signatures

  • Detect Socks5Systemz Payload 1 IoCs
  • Socks5Systemz

    Socks5Systemz is a botnet written in C++.

  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 5 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 15 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\af503d0b9b166ef84a29051153ce9e24c36e0466928d47b0a9fec26e9bec3a19.exe
    "C:\Users\Admin\AppData\Local\Temp\af503d0b9b166ef84a29051153ce9e24c36e0466928d47b0a9fec26e9bec3a19.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:2196
    • C:\Users\Admin\AppData\Local\Temp\is-OGSNH.tmp\af503d0b9b166ef84a29051153ce9e24c36e0466928d47b0a9fec26e9bec3a19.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-OGSNH.tmp\af503d0b9b166ef84a29051153ce9e24c36e0466928d47b0a9fec26e9bec3a19.tmp" /SL5="$40150,4859862,54272,C:\Users\Admin\AppData\Local\Temp\af503d0b9b166ef84a29051153ce9e24c36e0466928d47b0a9fec26e9bec3a19.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:1460
      • C:\Users\Admin\AppData\Local\OrangeStars Audio Converter\starsaudioconverter32.exe
        "C:\Users\Admin\AppData\Local\OrangeStars Audio Converter\starsaudioconverter32.exe" -i
        3⤵
        • Executes dropped EXE
        PID:2848
      • C:\Users\Admin\AppData\Local\OrangeStars Audio Converter\starsaudioconverter32.exe
        "C:\Users\Admin\AppData\Local\OrangeStars Audio Converter\starsaudioconverter32.exe" -s
        3⤵
        • Executes dropped EXE
        PID:2496

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • \Users\Admin\AppData\Local\OrangeStars Audio Converter\starsaudioconverter32.exe

    Filesize

    2.4MB

    MD5

    a7e3afa04828d1220190dbe3a5054a73

    SHA1

    4cdc1534b1aaca0372c77f0aa9c3edba2157bf9c

    SHA256

    5482badd2244e3fc7383b43dd9d582e31783ad3f4b1049abe7a045cf0e4604c8

    SHA512

    476c60b6b9dba9e4fbd29b68b67a2d7fa5911d8d4f5687debe8b78adf7332297bd25fbb499090a7a2601d63e50b2409bd43b92891069d30ba28f5efa3374de0d

  • \Users\Admin\AppData\Local\Temp\is-OGSNH.tmp\af503d0b9b166ef84a29051153ce9e24c36e0466928d47b0a9fec26e9bec3a19.tmp

    Filesize

    680KB

    MD5

    e805fd8d14185debe4999b420e788690

    SHA1

    014b87617a2f2c62530ec2da91a5be0d8078c098

    SHA256

    720ee272d4e0d2c13caaa0051d875437161f82df74152144276e87f694712a3c

    SHA512

    33b68c21ef3f6ea17736ff45881019e363abc2df83ae4c1399bb3b3466199b06731bdd45c0852cad33408b54371cb9a9a574ec3445dd5030f6e56306f1e81dbf

  • \Users\Admin\AppData\Local\Temp\is-UJK13.tmp\_isetup\_iscrypt.dll

    Filesize

    2KB

    MD5

    a69559718ab506675e907fe49deb71e9

    SHA1

    bc8f404ffdb1960b50c12ff9413c893b56f2e36f

    SHA256

    2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

    SHA512

    e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

  • \Users\Admin\AppData\Local\Temp\is-UJK13.tmp\_isetup\_shfoldr.dll

    Filesize

    22KB

    MD5

    92dc6ef532fbb4a5c3201469a5b5eb63

    SHA1

    3e89ff837147c16b4e41c30d6c796374e0b8e62c

    SHA256

    9884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87

    SHA512

    9908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3

  • memory/1460-9-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB

  • memory/1460-64-0x0000000003270000-0x00000000034D1000-memory.dmp

    Filesize

    2.4MB

  • memory/1460-79-0x0000000003270000-0x00000000034D1000-memory.dmp

    Filesize

    2.4MB

  • memory/1460-75-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB

  • memory/2196-74-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/2196-2-0x0000000000401000-0x000000000040B000-memory.dmp

    Filesize

    40KB

  • memory/2196-0-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/2496-80-0x0000000000400000-0x0000000000661000-memory.dmp

    Filesize

    2.4MB

  • memory/2496-99-0x0000000000400000-0x0000000000661000-memory.dmp

    Filesize

    2.4MB

  • memory/2496-138-0x0000000000400000-0x0000000000661000-memory.dmp

    Filesize

    2.4MB

  • memory/2496-76-0x0000000000400000-0x0000000000661000-memory.dmp

    Filesize

    2.4MB

  • memory/2496-133-0x0000000000400000-0x0000000000661000-memory.dmp

    Filesize

    2.4MB

  • memory/2496-130-0x0000000000400000-0x0000000000661000-memory.dmp

    Filesize

    2.4MB

  • memory/2496-83-0x0000000000400000-0x0000000000661000-memory.dmp

    Filesize

    2.4MB

  • memory/2496-86-0x0000000000400000-0x0000000000661000-memory.dmp

    Filesize

    2.4MB

  • memory/2496-89-0x0000000000400000-0x0000000000661000-memory.dmp

    Filesize

    2.4MB

  • memory/2496-92-0x0000000000400000-0x0000000000661000-memory.dmp

    Filesize

    2.4MB

  • memory/2496-93-0x00000000024B0000-0x0000000002552000-memory.dmp

    Filesize

    648KB

  • memory/2496-72-0x0000000000400000-0x0000000000661000-memory.dmp

    Filesize

    2.4MB

  • memory/2496-102-0x0000000000400000-0x0000000000661000-memory.dmp

    Filesize

    2.4MB

  • memory/2496-105-0x0000000000400000-0x0000000000661000-memory.dmp

    Filesize

    2.4MB

  • memory/2496-108-0x0000000000400000-0x0000000000661000-memory.dmp

    Filesize

    2.4MB

  • memory/2496-111-0x0000000000400000-0x0000000000661000-memory.dmp

    Filesize

    2.4MB

  • memory/2496-114-0x0000000000400000-0x0000000000661000-memory.dmp

    Filesize

    2.4MB

  • memory/2496-118-0x0000000000400000-0x0000000000661000-memory.dmp

    Filesize

    2.4MB

  • memory/2496-121-0x0000000000400000-0x0000000000661000-memory.dmp

    Filesize

    2.4MB

  • memory/2496-124-0x0000000000400000-0x0000000000661000-memory.dmp

    Filesize

    2.4MB

  • memory/2496-127-0x0000000000400000-0x0000000000661000-memory.dmp

    Filesize

    2.4MB

  • memory/2848-65-0x0000000000400000-0x0000000000661000-memory.dmp

    Filesize

    2.4MB

  • memory/2848-66-0x0000000000400000-0x0000000000661000-memory.dmp

    Filesize

    2.4MB

  • memory/2848-70-0x0000000000400000-0x0000000000661000-memory.dmp

    Filesize

    2.4MB