Analysis

  • max time kernel
    143s
  • max time network
    128s
  • platform
    windows7_x64
  • resource
    win7-20240611-en
  • resource tags

    arch:x64arch:x86image:win7-20240611-enlocale:en-usos:windows7-x64system
  • submitted
    15-06-2024 10:42

General

  • Target

    ed99bc19ec7d5137cd925f2d2d31aa2b4c4f008ec98b4b9cd8bb9e2910f46e54.exe

  • Size

    5.6MB

  • MD5

    ae111c7f6b3e5317ec3e428e7340c357

  • SHA1

    71f18c44bc543b6cb5ed792f9430842dc1cf61f5

  • SHA256

    ed99bc19ec7d5137cd925f2d2d31aa2b4c4f008ec98b4b9cd8bb9e2910f46e54

  • SHA512

    95ba9edf6a8c55045f5840f74bc1a0a245c32a3749878d055de1e9af6c2a6945fae875d49414a3ad8314142d71ec8ec94cdbd3208514c1e7a83c780f4ff37a81

  • SSDEEP

    98304:mQTH8zt/yCOLuH/XssxEkfLZZA4dFWku/ndG8Z7+TXYyA56xfr7mevz:pr+tdfXJuk1ZRzumTVm6B7m+

Malware Config

Extracted

Family

socks5systemz

C2

cctbyon.net

http://cctbyon.net/search/?q=67e28dd86f54a728120ffa1d7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4ce8889b5e4fa9281ae978f771ea771795af8e05c645db22f31df92d8b38e316a667d307eca743ec4c2b07b52966923a6f8afb19c2ef94

Signatures

  • Detect Socks5Systemz Payload 1 IoCs
  • Socks5Systemz

    Socks5Systemz is a botnet written in C++.

  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 6 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\ed99bc19ec7d5137cd925f2d2d31aa2b4c4f008ec98b4b9cd8bb9e2910f46e54.exe
    "C:\Users\Admin\AppData\Local\Temp\ed99bc19ec7d5137cd925f2d2d31aa2b4c4f008ec98b4b9cd8bb9e2910f46e54.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:2428
    • C:\Users\Admin\AppData\Local\Temp\is-G0BQI.tmp\ed99bc19ec7d5137cd925f2d2d31aa2b4c4f008ec98b4b9cd8bb9e2910f46e54.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-G0BQI.tmp\ed99bc19ec7d5137cd925f2d2d31aa2b4c4f008ec98b4b9cd8bb9e2910f46e54.tmp" /SL5="$4014C,5657214,54272,C:\Users\Admin\AppData\Local\Temp\ed99bc19ec7d5137cd925f2d2d31aa2b4c4f008ec98b4b9cd8bb9e2910f46e54.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:2416
      • C:\Users\Admin\AppData\Local\SVO Media Player\svomediaplayer.exe
        "C:\Users\Admin\AppData\Local\SVO Media Player\svomediaplayer.exe" -i
        3⤵
        • Executes dropped EXE
        PID:2588
      • C:\Users\Admin\AppData\Local\SVO Media Player\svomediaplayer.exe
        "C:\Users\Admin\AppData\Local\SVO Media Player\svomediaplayer.exe" -s
        3⤵
        • Executes dropped EXE
        PID:2904

Network

MITRE ATT&CK Matrix ATT&CK v13

Discovery

Query Registry

1
T1012

System Information Discovery

1
T1082

Replay Monitor

Loading Replay Monitor...

Downloads

  • \Users\Admin\AppData\Local\SVO Media Player\svomediaplayer.exe
    Filesize

    3.0MB

    MD5

    7b79b80bd7612cadf4ff6a35384ead95

    SHA1

    34de9ab6aa07283bd54b5bf102099d2d4ac46476

    SHA256

    f27e743c7a8820eb614580d73f4a30e286856655b01cc524eea62b7d20147a9e

    SHA512

    c0a4b4241683d5b3381c8fab20dbfc362bbc7ae0d9c6e9338f4b70b27a38310359fbc1f351a7f56948de6d9c5c99964abe753485759911b9c1de541a875628b6

  • \Users\Admin\AppData\Local\Temp\is-3FLFF.tmp\_isetup\_iscrypt.dll
    Filesize

    2KB

    MD5

    a69559718ab506675e907fe49deb71e9

    SHA1

    bc8f404ffdb1960b50c12ff9413c893b56f2e36f

    SHA256

    2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

    SHA512

    e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

  • \Users\Admin\AppData\Local\Temp\is-3FLFF.tmp\_isetup\_isdecmp.dll
    Filesize

    13KB

    MD5

    a813d18268affd4763dde940246dc7e5

    SHA1

    c7366e1fd925c17cc6068001bd38eaef5b42852f

    SHA256

    e19781aabe466dd8779cb9c8fa41bbb73375447066bb34e876cf388a6ed63c64

    SHA512

    b310ed4cd2e94381c00a6a370fcb7cc867ebe425d705b69caaaaffdafbab91f72d357966916053e72e68ecf712f2af7585500c58bb53ec3e1d539179fcb45fb4

  • \Users\Admin\AppData\Local\Temp\is-3FLFF.tmp\_isetup\_shfoldr.dll
    Filesize

    22KB

    MD5

    92dc6ef532fbb4a5c3201469a5b5eb63

    SHA1

    3e89ff837147c16b4e41c30d6c796374e0b8e62c

    SHA256

    9884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87

    SHA512

    9908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3

  • \Users\Admin\AppData\Local\Temp\is-G0BQI.tmp\ed99bc19ec7d5137cd925f2d2d31aa2b4c4f008ec98b4b9cd8bb9e2910f46e54.tmp
    Filesize

    680KB

    MD5

    548dec969992f3e928d7c5bcf6dbeccf

    SHA1

    f4da2c90b95749fbb89e1a16f55719078cb128aa

    SHA256

    9a883c56e3cd5e476c9baa539c1b5d0e877dfade2714040c84ed5f098665b768

    SHA512

    e3980bb2bc9a9146c37bae8c60e80bc5fa164cd767fad3c046046d1517ca24780191ab98526bc94392d6a55fa486ef77857359eadef0466c6abf2b42dcec4321

  • memory/2416-17-0x0000000000400000-0x00000000004BA000-memory.dmp
    Filesize

    744KB

  • memory/2416-81-0x0000000003AA0000-0x0000000003DA5000-memory.dmp
    Filesize

    3.0MB

  • memory/2416-65-0x0000000003AA0000-0x0000000003DA5000-memory.dmp
    Filesize

    3.0MB

  • memory/2416-77-0x0000000000400000-0x00000000004BA000-memory.dmp
    Filesize

    744KB

  • memory/2428-3-0x0000000000401000-0x000000000040B000-memory.dmp
    Filesize

    40KB

  • memory/2428-76-0x0000000000400000-0x0000000000414000-memory.dmp
    Filesize

    80KB

  • memory/2428-0-0x0000000000400000-0x0000000000414000-memory.dmp
    Filesize

    80KB

  • memory/2588-68-0x0000000000400000-0x0000000000705000-memory.dmp
    Filesize

    3.0MB

  • memory/2588-69-0x0000000000400000-0x0000000000705000-memory.dmp
    Filesize

    3.0MB

  • memory/2588-73-0x0000000000400000-0x0000000000705000-memory.dmp
    Filesize

    3.0MB

  • memory/2904-78-0x0000000000400000-0x0000000000705000-memory.dmp
    Filesize

    3.0MB

  • memory/2904-82-0x0000000000400000-0x0000000000705000-memory.dmp
    Filesize

    3.0MB

  • memory/2904-85-0x0000000000400000-0x0000000000705000-memory.dmp
    Filesize

    3.0MB

  • memory/2904-88-0x0000000000400000-0x0000000000705000-memory.dmp
    Filesize

    3.0MB

  • memory/2904-91-0x0000000000400000-0x0000000000705000-memory.dmp
    Filesize

    3.0MB

  • memory/2904-94-0x0000000000400000-0x0000000000705000-memory.dmp
    Filesize

    3.0MB

  • memory/2904-95-0x0000000002350000-0x00000000023F2000-memory.dmp
    Filesize

    648KB

  • memory/2904-101-0x0000000000400000-0x0000000000705000-memory.dmp
    Filesize

    3.0MB

  • memory/2904-104-0x0000000000400000-0x0000000000705000-memory.dmp
    Filesize

    3.0MB

  • memory/2904-107-0x0000000000400000-0x0000000000705000-memory.dmp
    Filesize

    3.0MB

  • memory/2904-110-0x0000000000400000-0x0000000000705000-memory.dmp
    Filesize

    3.0MB

  • memory/2904-113-0x0000000000400000-0x0000000000705000-memory.dmp
    Filesize

    3.0MB

  • memory/2904-116-0x0000000000400000-0x0000000000705000-memory.dmp
    Filesize

    3.0MB

  • memory/2904-120-0x0000000000400000-0x0000000000705000-memory.dmp
    Filesize

    3.0MB

  • memory/2904-123-0x0000000000400000-0x0000000000705000-memory.dmp
    Filesize

    3.0MB