Analysis

  • max time kernel
    144s
  • max time network
    136s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    06-11-2024 23:31

General

  • Target

    4519ffb96ab3e8a4746518455911475f459685fc4174251a17552f1f100c93b5.exe

  • Size

    5.9MB

  • MD5

    5ce6dc42328ec1134eb1af7ceb781608

  • SHA1

    8c62c89a91b5372530617d5135aa7e3a08374a21

  • SHA256

    4519ffb96ab3e8a4746518455911475f459685fc4174251a17552f1f100c93b5

  • SHA512

    4d0a63bd1221f1abba3456e2620d1bf8b60e17909d106fa1413d2bbf764fc643733006e84e3536d9459539f55794ba0eabd6d1cc46a657e3c96cdbbd7e670e78

  • SSDEEP

    98304:4ZRChvOv4yzF7CW7NEwaT3/fKg2LCvkU2fxr4ZsbAqzJao8PmXKQZUX2L9JTg:0Cs35JEwaj/12OsU2fB+hqkxP6KIUGLA

Malware Config

Signatures

  • Detect Socks5Systemz Payload 3 IoCs
  • Socks5Systemz

    Socks5Systemz is a botnet written in C++.

  • Socks5systemz family
  • Executes dropped EXE 2 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.

  • System Location Discovery: System Language Discovery 1 TTPs 5 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Runs net.exe
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of WriteProcessMemory 19 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\4519ffb96ab3e8a4746518455911475f459685fc4174251a17552f1f100c93b5.exe
    "C:\Users\Admin\AppData\Local\Temp\4519ffb96ab3e8a4746518455911475f459685fc4174251a17552f1f100c93b5.exe"
    1⤵
    • Loads dropped DLL
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3068
    • C:\Users\Admin\AppData\Local\Temp\is-6RBCI.tmp\4519ffb96ab3e8a4746518455911475f459685fc4174251a17552f1f100c93b5.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-6RBCI.tmp\4519ffb96ab3e8a4746518455911475f459685fc4174251a17552f1f100c93b5.tmp" /SL5="$50150,5977381,56832,C:\Users\Admin\AppData\Local\Temp\4519ffb96ab3e8a4746518455911475f459685fc4174251a17552f1f100c93b5.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:2160
      • C:\Windows\SysWOW64\net.exe
        "C:\Windows\system32\net.exe" pause hd_video_converter_fox_125
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:1620
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 pause hd_video_converter_fox_125
          4⤵
          • System Location Discovery: System Language Discovery
          PID:1804
      • C:\Users\Admin\AppData\Local\HD Video Converter Fox 1.2.5\hdvideoconverterfox125.exe
        "C:\Users\Admin\AppData\Local\HD Video Converter Fox 1.2.5\hdvideoconverterfox125.exe" -i
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        PID:2112

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\HD Video Converter Fox 1.2.5\hdvideoconverterfox125.exe

    Filesize

    4.1MB

    MD5

    3e5665842edf692c5da51975bea8be54

    SHA1

    df865efaaa7de117b983588fefd7474053cf3bff

    SHA256

    21e988aa820894faeb5f57171734501a444be9ac2758a2b17bcc9a4b677ba495

    SHA512

    75b721cb68c254c6ba26d82cbbb38ace5928a386d5428f651e56734a1a70de55c315378e8bc2d95b26f90b51095229e1ce5f239c177dff1204e31d18cc4a486d

  • \Users\Admin\AppData\Local\Temp\is-6RBCI.tmp\4519ffb96ab3e8a4746518455911475f459685fc4174251a17552f1f100c93b5.tmp

    Filesize

    692KB

    MD5

    3c6aff88c22351bcb786883117ab81d7

    SHA1

    f848e3560ff4343b5756f440681d4c0b9628b066

    SHA256

    21bd2a3387abb64f55d96e6d1c62f32a386d4431701baffc51a0282c490076ad

    SHA512

    b7f9c7e24239129ac98f3d6f27ce63b95909000838caaa5bb9dbcd6a1a65448478f3633726f01f98708c2e65d06ff5c3f086a1d2d2e5a91dbbc7e2703ff0ab74

  • \Users\Admin\AppData\Local\Temp\is-IO9FK.tmp\_isetup\_iscrypt.dll

    Filesize

    2KB

    MD5

    a69559718ab506675e907fe49deb71e9

    SHA1

    bc8f404ffdb1960b50c12ff9413c893b56f2e36f

    SHA256

    2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

    SHA512

    e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

  • \Users\Admin\AppData\Local\Temp\is-IO9FK.tmp\_isetup\_shfoldr.dll

    Filesize

    22KB

    MD5

    92dc6ef532fbb4a5c3201469a5b5eb63

    SHA1

    3e89ff837147c16b4e41c30d6c796374e0b8e62c

    SHA256

    9884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87

    SHA512

    9908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3

  • memory/2112-123-0x0000000000400000-0x0000000000824000-memory.dmp

    Filesize

    4.1MB

  • memory/2112-129-0x0000000000400000-0x0000000000824000-memory.dmp

    Filesize

    4.1MB

  • memory/2112-144-0x0000000000400000-0x0000000000824000-memory.dmp

    Filesize

    4.1MB

  • memory/2112-141-0x0000000000400000-0x0000000000824000-memory.dmp

    Filesize

    4.1MB

  • memory/2112-90-0x0000000000400000-0x0000000000824000-memory.dmp

    Filesize

    4.1MB

  • memory/2112-91-0x0000000000400000-0x0000000000824000-memory.dmp

    Filesize

    4.1MB

  • memory/2112-137-0x0000000002B70000-0x0000000002C12000-memory.dmp

    Filesize

    648KB

  • memory/2112-136-0x0000000002B70000-0x0000000002C12000-memory.dmp

    Filesize

    648KB

  • memory/2112-97-0x0000000000400000-0x0000000000824000-memory.dmp

    Filesize

    4.1MB

  • memory/2112-100-0x0000000000400000-0x0000000000824000-memory.dmp

    Filesize

    4.1MB

  • memory/2112-103-0x0000000000400000-0x0000000000824000-memory.dmp

    Filesize

    4.1MB

  • memory/2112-106-0x0000000000400000-0x0000000000824000-memory.dmp

    Filesize

    4.1MB

  • memory/2112-109-0x0000000000400000-0x0000000000824000-memory.dmp

    Filesize

    4.1MB

  • memory/2112-112-0x0000000000400000-0x0000000000824000-memory.dmp

    Filesize

    4.1MB

  • memory/2112-113-0x0000000002B70000-0x0000000002C12000-memory.dmp

    Filesize

    648KB

  • memory/2112-119-0x0000000000400000-0x0000000000824000-memory.dmp

    Filesize

    4.1MB

  • memory/2112-135-0x0000000000400000-0x0000000000824000-memory.dmp

    Filesize

    4.1MB

  • memory/2112-132-0x0000000000400000-0x0000000000824000-memory.dmp

    Filesize

    4.1MB

  • memory/2112-126-0x0000000000400000-0x0000000000824000-memory.dmp

    Filesize

    4.1MB

  • memory/2160-8-0x0000000000400000-0x00000000004BD000-memory.dmp

    Filesize

    756KB

  • memory/2160-122-0x0000000003660000-0x0000000003A84000-memory.dmp

    Filesize

    4.1MB

  • memory/2160-94-0x0000000000400000-0x00000000004BD000-memory.dmp

    Filesize

    756KB

  • memory/2160-89-0x0000000003660000-0x0000000003A84000-memory.dmp

    Filesize

    4.1MB

  • memory/3068-2-0x0000000000401000-0x000000000040B000-memory.dmp

    Filesize

    40KB

  • memory/3068-95-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/3068-0-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB