Analysis

  • max time kernel
    149s
  • max time network
    142s
  • platform
    windows7_x64
  • resource
    win7-20240611-en
  • resource tags

    arch:x64arch:x86image:win7-20240611-enlocale:en-usos:windows7-x64system
  • submitted
    14-06-2024 01:41

General

  • Target

    9f69963c838288865f38acc2d517db733466d0c9b5b0cc6cdd8ba6593844a5f8.exe

  • Size

    4.8MB

  • MD5

    c03417441522ac0b28b6b58d4a8b1c63

  • SHA1

    6ed5c931c0ace25b1c5b3e528006b3802bbe30a3

  • SHA256

    9f69963c838288865f38acc2d517db733466d0c9b5b0cc6cdd8ba6593844a5f8

  • SHA512

    14bcd7d081472fa3f9c68ae8e07d631bef9730c6f0c3997a25e04e9f88edccccfdb5a8745d81961995500b42c6db264c77b3001a614cd123a53d1225abc46205

  • SSDEEP

    98304:mW5FpzB3L3Po4kLHarrsVbQoAsWdImQnIc5IXzYR691RGZ7nK7Vknsk8i:ZtJ3wNH46QoAsWF4qXOE1R+nK7Qsg

Malware Config

Extracted

Family

socks5systemz

C2

dtlzidv.info

http://dtlzidv.info/search/?q=67e28dd86f5ff42d4509ac187c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4de8889b5e4fa9281ae978f771ea771795af8e05c645db22f31df92d8b38e316a667d307eca743ec4c2b07b52966923a6f8dfd18c3e990

Signatures

  • Detect Socks5Systemz Payload 1 IoCs
  • Socks5Systemz

    Socks5Systemz is a botnet written in C++.

  • Detects executables packed with VMProtect. 17 IoCs
  • 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\9f69963c838288865f38acc2d517db733466d0c9b5b0cc6cdd8ba6593844a5f8.exe
    "C:\Users\Admin\AppData\Local\Temp\9f69963c838288865f38acc2d517db733466d0c9b5b0cc6cdd8ba6593844a5f8.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:2444
    • C:\Users\Admin\AppData\Local\Temp\is-PQ3UG.tmp\9f69963c838288865f38acc2d517db733466d0c9b5b0cc6cdd8ba6593844a5f8.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-PQ3UG.tmp\9f69963c838288865f38acc2d517db733466d0c9b5b0cc6cdd8ba6593844a5f8.tmp" /SL5="$5014A,4767411,54272,C:\Users\Admin\AppData\Local\Temp\9f69963c838288865f38acc2d517db733466d0c9b5b0cc6cdd8ba6593844a5f8.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:2192
      • C:\Users\Admin\AppData\Local\Free Audio Converter\audioconverter32.exe
        "C:\Users\Admin\AppData\Local\Free Audio Converter\audioconverter32.exe" -i
        3⤵
        • Executes dropped EXE
        PID:1140
      • C:\Users\Admin\AppData\Local\Free Audio Converter\audioconverter32.exe
        "C:\Users\Admin\AppData\Local\Free Audio Converter\audioconverter32.exe" -s
        3⤵
        • Executes dropped EXE
        PID:2620

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • \Users\Admin\AppData\Local\Free Audio Converter\audioconverter32.exe
    Filesize

    2.9MB

    MD5

    30dd2b0aac75d012605817206d2ea578

    SHA1

    08a7a70bd7520d9ace75243bd3a8f441b226d479

    SHA256

    6b7e73e4f2add647d5c48f655adbaeefb0232674499c26fe08066239654b6891

    SHA512

    0f641a8fdede3bc8745c217cdb27509b8794f9a7125081a099b688f7494a60098010ac70be30fce1293c97c45de70fecdfbcd46be4acd5a22e1723f7a1c8cc66

  • \Users\Admin\AppData\Local\Temp\is-PQ3UG.tmp\9f69963c838288865f38acc2d517db733466d0c9b5b0cc6cdd8ba6593844a5f8.tmp
    Filesize

    680KB

    MD5

    f2ea57162349fbb5a88b276f91880c7d

    SHA1

    31d0ef8f01ec1dbca631b2aee891ec46c0a2c663

    SHA256

    756ee2c303f097f361c1f6f16f118612acd5ceb277fd7642695b36fedf0dba68

    SHA512

    3dd06f405e036ade9fd52ac7ae189e8c1bafc48dc09f6f346f5b1ddb32ec43ecf527bd96d2c446d320cd22ea63d5eae430cab92533847d83a0af015224a13799

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

    2KB

    MD5

    a69559718ab506675e907fe49deb71e9

    SHA1

    bc8f404ffdb1960b50c12ff9413c893b56f2e36f

    SHA256

    2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

    SHA512

    e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

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

    22KB

    MD5

    92dc6ef532fbb4a5c3201469a5b5eb63

    SHA1

    3e89ff837147c16b4e41c30d6c796374e0b8e62c

    SHA256

    9884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87

    SHA512

    9908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3

  • memory/1140-65-0x0000000000400000-0x00000000006E9000-memory.dmp
    Filesize

    2.9MB

  • memory/1140-70-0x0000000000400000-0x00000000006E9000-memory.dmp
    Filesize

    2.9MB

  • memory/1140-66-0x0000000000400000-0x00000000006E9000-memory.dmp
    Filesize

    2.9MB

  • memory/2192-78-0x0000000005230000-0x0000000005519000-memory.dmp
    Filesize

    2.9MB

  • memory/2192-81-0x0000000005230000-0x0000000005519000-memory.dmp
    Filesize

    2.9MB

  • memory/2192-12-0x0000000000400000-0x00000000004BA000-memory.dmp
    Filesize

    744KB

  • memory/2192-63-0x0000000005230000-0x0000000005519000-memory.dmp
    Filesize

    2.9MB

  • memory/2192-75-0x0000000000400000-0x00000000004BA000-memory.dmp
    Filesize

    744KB

  • memory/2444-0-0x0000000000400000-0x0000000000414000-memory.dmp
    Filesize

    80KB

  • memory/2444-74-0x0000000000400000-0x0000000000414000-memory.dmp
    Filesize

    80KB

  • memory/2444-2-0x0000000000401000-0x000000000040B000-memory.dmp
    Filesize

    40KB

  • memory/2620-85-0x0000000000400000-0x00000000006E9000-memory.dmp
    Filesize

    2.9MB

  • memory/2620-97-0x0000000002270000-0x0000000002312000-memory.dmp
    Filesize

    648KB

  • memory/2620-82-0x0000000000400000-0x00000000006E9000-memory.dmp
    Filesize

    2.9MB

  • memory/2620-73-0x0000000000400000-0x00000000006E9000-memory.dmp
    Filesize

    2.9MB

  • memory/2620-88-0x0000000000400000-0x00000000006E9000-memory.dmp
    Filesize

    2.9MB

  • memory/2620-91-0x0000000000400000-0x00000000006E9000-memory.dmp
    Filesize

    2.9MB

  • memory/2620-94-0x0000000000400000-0x00000000006E9000-memory.dmp
    Filesize

    2.9MB

  • memory/2620-77-0x0000000000400000-0x00000000006E9000-memory.dmp
    Filesize

    2.9MB

  • memory/2620-101-0x0000000000400000-0x00000000006E9000-memory.dmp
    Filesize

    2.9MB

  • memory/2620-104-0x0000000000400000-0x00000000006E9000-memory.dmp
    Filesize

    2.9MB

  • memory/2620-107-0x0000000000400000-0x00000000006E9000-memory.dmp
    Filesize

    2.9MB

  • memory/2620-110-0x0000000000400000-0x00000000006E9000-memory.dmp
    Filesize

    2.9MB

  • memory/2620-113-0x0000000000400000-0x00000000006E9000-memory.dmp
    Filesize

    2.9MB

  • memory/2620-116-0x0000000000400000-0x00000000006E9000-memory.dmp
    Filesize

    2.9MB

  • memory/2620-120-0x0000000000400000-0x00000000006E9000-memory.dmp
    Filesize

    2.9MB

  • memory/2620-123-0x0000000000400000-0x00000000006E9000-memory.dmp
    Filesize

    2.9MB