Analysis

  • max time kernel
    141s
  • max time network
    128s
  • platform
    windows7_x64
  • resource
    win7-20241010-en
  • resource tags

    arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
  • submitted
    06-11-2024 21:46

General

  • Target

    e8a1d20f9f235928e58c2feeda7d1e42beef21d9476483af80cb045d60a0c475.exe

  • Size

    5.9MB

  • MD5

    8a800f13292ffdc85ddec778f3500f93

  • SHA1

    a7c4f20adc12b89b57a73c7f2f004ad196e4de1a

  • SHA256

    e8a1d20f9f235928e58c2feeda7d1e42beef21d9476483af80cb045d60a0c475

  • SHA512

    f75e232c05dd59bb6f824c29dc662456cb96674a949049cc6633944a90e92d2ce697c82979d4d61f7bdc85f82296e6ca2373e426470e54ba7100d2dc84a33a14

  • SSDEEP

    98304:4px0pJKeSccP/dqaN6tC3QW7QkGEA3fWDvZkMdRFOhlPnHwGSMGcSulyoIvq:ExkJKB3ditCg+QxEA3fmvZ5TOhlfRNSS

Malware Config

Signatures

  • Detect Socks5Systemz Payload 1 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\e8a1d20f9f235928e58c2feeda7d1e42beef21d9476483af80cb045d60a0c475.exe
    "C:\Users\Admin\AppData\Local\Temp\e8a1d20f9f235928e58c2feeda7d1e42beef21d9476483af80cb045d60a0c475.exe"
    1⤵
    • Loads dropped DLL
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2520
    • C:\Users\Admin\AppData\Local\Temp\is-QTIHF.tmp\e8a1d20f9f235928e58c2feeda7d1e42beef21d9476483af80cb045d60a0c475.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-QTIHF.tmp\e8a1d20f9f235928e58c2feeda7d1e42beef21d9476483af80cb045d60a0c475.tmp" /SL5="$5014E,5946423,56832,C:\Users\Admin\AppData\Local\Temp\e8a1d20f9f235928e58c2feeda7d1e42beef21d9476483af80cb045d60a0c475.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:1736
      • C:\Windows\SysWOW64\net.exe
        "C:\Windows\system32\net.exe" pause hd_video_converter_fox_124
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:2840
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 pause hd_video_converter_fox_124
          4⤵
          • System Location Discovery: System Language Discovery
          PID:2672
      • C:\Users\Admin\AppData\Local\HD Video Converter Fox 1.2.4\hdvideoconverterfox32.exe
        "C:\Users\Admin\AppData\Local\HD Video Converter Fox 1.2.4\hdvideoconverterfox32.exe" -i
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        PID:2724

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • \Users\Admin\AppData\Local\HD Video Converter Fox 1.2.4\hdvideoconverterfox32.exe

    Filesize

    4.2MB

    MD5

    9c3921f6cacfae42821c231075ae2974

    SHA1

    dc88855f945a051d33bc0825cdd58859d9393d11

    SHA256

    e52e124810a588d1234603dea352068c6af9fa91ec62246f24944c6c25499487

    SHA512

    4f6c12ad070ddcb8e9d562740f9392fa55d759486e3c35c5695482f804d6fa67c4627c6976d368cc4da17b1d90930f20ab5abf47eb3f793d429e164d30eda3ac

  • \Users\Admin\AppData\Local\Temp\is-4K23U.tmp\_isetup\_iscrypt.dll

    Filesize

    2KB

    MD5

    a69559718ab506675e907fe49deb71e9

    SHA1

    bc8f404ffdb1960b50c12ff9413c893b56f2e36f

    SHA256

    2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

    SHA512

    e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

  • \Users\Admin\AppData\Local\Temp\is-4K23U.tmp\_isetup\_shfoldr.dll

    Filesize

    22KB

    MD5

    92dc6ef532fbb4a5c3201469a5b5eb63

    SHA1

    3e89ff837147c16b4e41c30d6c796374e0b8e62c

    SHA256

    9884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87

    SHA512

    9908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3

  • \Users\Admin\AppData\Local\Temp\is-QTIHF.tmp\e8a1d20f9f235928e58c2feeda7d1e42beef21d9476483af80cb045d60a0c475.tmp

    Filesize

    692KB

    MD5

    7ec465bcc2697f044dd5a1175acedcee

    SHA1

    7ad782884152b919e5b72eda8bd0e584e2609b82

    SHA256

    5c5d491884bc5e9acfb7b32b21f106a9c8c68b6d1cc720704a534fc53b987350

    SHA512

    d308f1ad3df06f07dfaffa4f409a4943ed5adf3a5873fd5d971b5b9102a500c1bb8c6839d733323c5dda8fafe51bf6f1ce0d8931a27f21ae771154fde9e78a4a

  • memory/1736-8-0x0000000000400000-0x00000000004BD000-memory.dmp

    Filesize

    756KB

  • memory/1736-89-0x0000000003580000-0x00000000039B0000-memory.dmp

    Filesize

    4.2MB

  • memory/1736-122-0x0000000003580000-0x00000000039B0000-memory.dmp

    Filesize

    4.2MB

  • memory/1736-94-0x0000000000400000-0x00000000004BD000-memory.dmp

    Filesize

    756KB

  • memory/2520-95-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/2520-2-0x0000000000401000-0x000000000040B000-memory.dmp

    Filesize

    40KB

  • memory/2520-0-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/2724-103-0x0000000000400000-0x0000000000830000-memory.dmp

    Filesize

    4.2MB

  • memory/2724-90-0x0000000000400000-0x0000000000830000-memory.dmp

    Filesize

    4.2MB

  • memory/2724-100-0x0000000000400000-0x0000000000830000-memory.dmp

    Filesize

    4.2MB

  • memory/2724-91-0x0000000000400000-0x0000000000830000-memory.dmp

    Filesize

    4.2MB

  • memory/2724-106-0x0000000000400000-0x0000000000830000-memory.dmp

    Filesize

    4.2MB

  • memory/2724-109-0x0000000000400000-0x0000000000830000-memory.dmp

    Filesize

    4.2MB

  • memory/2724-112-0x0000000000400000-0x0000000000830000-memory.dmp

    Filesize

    4.2MB

  • memory/2724-113-0x0000000002C50000-0x0000000002CF2000-memory.dmp

    Filesize

    648KB

  • memory/2724-119-0x0000000000400000-0x0000000000830000-memory.dmp

    Filesize

    4.2MB

  • memory/2724-97-0x0000000000400000-0x0000000000830000-memory.dmp

    Filesize

    4.2MB

  • memory/2724-123-0x0000000000400000-0x0000000000830000-memory.dmp

    Filesize

    4.2MB

  • memory/2724-126-0x0000000000400000-0x0000000000830000-memory.dmp

    Filesize

    4.2MB

  • memory/2724-129-0x0000000000400000-0x0000000000830000-memory.dmp

    Filesize

    4.2MB

  • memory/2724-132-0x0000000000400000-0x0000000000830000-memory.dmp

    Filesize

    4.2MB

  • memory/2724-135-0x0000000000400000-0x0000000000830000-memory.dmp

    Filesize

    4.2MB

  • memory/2724-139-0x0000000000400000-0x0000000000830000-memory.dmp

    Filesize

    4.2MB

  • memory/2724-142-0x0000000000400000-0x0000000000830000-memory.dmp

    Filesize

    4.2MB