Analysis

  • max time kernel
    143s
  • max time network
    128s
  • platform
    windows7_x64
  • resource
    win7-20231129-en
  • resource tags

    arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
  • submitted
    14-06-2024 01:20

General

  • Target

    60c18399961ac8eba0a57e61cd04e0614b4875c4ba3bb7403cd6f743f6a4f34b.exe

  • Size

    4.9MB

  • MD5

    293b18f690eceda5fd2e8c84a48db38e

  • SHA1

    2524a6e78eaa783e0fa99e9980eb87be86a81b37

  • SHA256

    60c18399961ac8eba0a57e61cd04e0614b4875c4ba3bb7403cd6f743f6a4f34b

  • SHA512

    f87a0550f94e54e9a4575766321d058c35ee204826a391247e962244909ae1ab44f787b0da50bef34ea0357bb2ba1c7e147c0eefe22ca42fd168c241b073ccca

  • SSDEEP

    98304:mppUtYFOWYux+XonyijnaQz6oBK2hndNx1gQJNBvc6Xii9iddAXXAx:ApUtYF9YR4yRL4dNxTNBfii9iEAx

Malware Config

Extracted

Family

socks5systemz

C2

bwibene.com

http://bwibene.com/search/?q=67e28dd8690cfb204406a51a7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa49e8889b5e4fa9281ae978fe71ea771795af8e05c645db22f31df92d8b38e316a667d307eca743ec4c2b07b52966923a6f8dfd19c1ef96

Signatures

  • Detect Socks5Systemz Payload 1 IoCs
  • Socks5Systemz

    Socks5Systemz is a botnet written in C++.

  • Detects executables packed with VMProtect. 16 IoCs
  • 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\60c18399961ac8eba0a57e61cd04e0614b4875c4ba3bb7403cd6f743f6a4f34b.exe
    "C:\Users\Admin\AppData\Local\Temp\60c18399961ac8eba0a57e61cd04e0614b4875c4ba3bb7403cd6f743f6a4f34b.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:2352
    • C:\Users\Admin\AppData\Local\Temp\is-27HTD.tmp\60c18399961ac8eba0a57e61cd04e0614b4875c4ba3bb7403cd6f743f6a4f34b.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-27HTD.tmp\60c18399961ac8eba0a57e61cd04e0614b4875c4ba3bb7403cd6f743f6a4f34b.tmp" /SL5="$30142,4904888,54272,C:\Users\Admin\AppData\Local\Temp\60c18399961ac8eba0a57e61cd04e0614b4875c4ba3bb7403cd6f743f6a4f34b.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:1600
      • C:\Users\Admin\AppData\Local\Linux MultiMedia Studio\linuxmultiMediastudio32.exe
        "C:\Users\Admin\AppData\Local\Linux MultiMedia Studio\linuxmultiMediastudio32.exe" -i
        3⤵
        • Executes dropped EXE
        PID:2752
      • C:\Users\Admin\AppData\Local\Linux MultiMedia Studio\linuxmultiMediastudio32.exe
        "C:\Users\Admin\AppData\Local\Linux MultiMedia Studio\linuxmultiMediastudio32.exe" -s
        3⤵
        • Executes dropped EXE
        PID:2444

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • \Users\Admin\AppData\Local\Linux MultiMedia Studio\linuxmultiMediastudio32.exe
    Filesize

    3.0MB

    MD5

    4ee9e7617bc27a3341ba4c7215680050

    SHA1

    341f00bf480e21fdf96dfac5277d4ca28f59bfe1

    SHA256

    8b785e4c19a6b313f6ae1474192c71df8e0c31a6a313fb721e8bc7cc529e9517

    SHA512

    de4bf598b97971a9d105c374c80bc2fa898d2d6dfa7e0ff5b3e4b3035d47ca8fb5e46e196fa768a150ba42ba57c080f0fc6fb3e9d6d6f5d7a633e5c706116022

  • \Users\Admin\AppData\Local\Temp\is-27HTD.tmp\60c18399961ac8eba0a57e61cd04e0614b4875c4ba3bb7403cd6f743f6a4f34b.tmp
    Filesize

    680KB

    MD5

    da3e3293eadae0b9e8e0bb85b53bf263

    SHA1

    6fd7ba9a4f76f8500f7ec3d820f70ca0c869173f

    SHA256

    ecf5f7145a55f9014f86014fd3d9a6048b8f29e653409604e4d12cb1bda2302d

    SHA512

    c1b4a03f7f657f1db5bbf21f68ebce7373b90135698eb5fe4c432630e7066f0c89eeddd0f6cbb0af631ad62026992503df42e31e6999b166a541044c688a0fb8

  • \Users\Admin\AppData\Local\Temp\is-FM20P.tmp\_isetup\_iscrypt.dll
    Filesize

    2KB

    MD5

    a69559718ab506675e907fe49deb71e9

    SHA1

    bc8f404ffdb1960b50c12ff9413c893b56f2e36f

    SHA256

    2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

    SHA512

    e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

  • \Users\Admin\AppData\Local\Temp\is-FM20P.tmp\_isetup\_shfoldr.dll
    Filesize

    22KB

    MD5

    92dc6ef532fbb4a5c3201469a5b5eb63

    SHA1

    3e89ff837147c16b4e41c30d6c796374e0b8e62c

    SHA256

    9884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87

    SHA512

    9908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3

  • memory/1600-9-0x0000000000400000-0x00000000004BA000-memory.dmp
    Filesize

    744KB

  • memory/1600-63-0x00000000040F0000-0x00000000043FE000-memory.dmp
    Filesize

    3.1MB

  • memory/1600-77-0x00000000040F0000-0x00000000043FE000-memory.dmp
    Filesize

    3.1MB

  • memory/1600-75-0x0000000000400000-0x00000000004BA000-memory.dmp
    Filesize

    744KB

  • memory/2352-74-0x0000000000400000-0x0000000000414000-memory.dmp
    Filesize

    80KB

  • memory/2352-2-0x0000000000401000-0x000000000040B000-memory.dmp
    Filesize

    40KB

  • memory/2352-0-0x0000000000400000-0x0000000000414000-memory.dmp
    Filesize

    80KB

  • memory/2444-76-0x0000000000400000-0x000000000070E000-memory.dmp
    Filesize

    3.1MB

  • memory/2444-92-0x0000000000400000-0x000000000070E000-memory.dmp
    Filesize

    3.1MB

  • memory/2444-121-0x0000000000400000-0x000000000070E000-memory.dmp
    Filesize

    3.1MB

  • memory/2444-118-0x0000000000400000-0x000000000070E000-memory.dmp
    Filesize

    3.1MB

  • memory/2444-114-0x0000000000400000-0x000000000070E000-memory.dmp
    Filesize

    3.1MB

  • memory/2444-80-0x0000000000400000-0x000000000070E000-memory.dmp
    Filesize

    3.1MB

  • memory/2444-83-0x0000000000400000-0x000000000070E000-memory.dmp
    Filesize

    3.1MB

  • memory/2444-86-0x0000000000400000-0x000000000070E000-memory.dmp
    Filesize

    3.1MB

  • memory/2444-89-0x0000000000400000-0x000000000070E000-memory.dmp
    Filesize

    3.1MB

  • memory/2444-72-0x0000000000400000-0x000000000070E000-memory.dmp
    Filesize

    3.1MB

  • memory/2444-93-0x0000000002590000-0x0000000002632000-memory.dmp
    Filesize

    648KB

  • memory/2444-99-0x0000000000400000-0x000000000070E000-memory.dmp
    Filesize

    3.1MB

  • memory/2444-102-0x0000000000400000-0x000000000070E000-memory.dmp
    Filesize

    3.1MB

  • memory/2444-105-0x0000000000400000-0x000000000070E000-memory.dmp
    Filesize

    3.1MB

  • memory/2444-108-0x0000000000400000-0x000000000070E000-memory.dmp
    Filesize

    3.1MB

  • memory/2444-111-0x0000000000400000-0x000000000070E000-memory.dmp
    Filesize

    3.1MB

  • memory/2752-65-0x0000000000400000-0x000000000070E000-memory.dmp
    Filesize

    3.1MB

  • memory/2752-66-0x0000000000400000-0x000000000070E000-memory.dmp
    Filesize

    3.1MB

  • memory/2752-70-0x0000000000400000-0x000000000070E000-memory.dmp
    Filesize

    3.1MB