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Analysis

  • max time kernel
    143s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231222-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
  • submitted
    11/01/2024, 04:46

General

  • Target

    5f4371e9fcc21652c9fb3867f64d4941.exe

  • Size

    4.5MB

  • MD5

    5f4371e9fcc21652c9fb3867f64d4941

  • SHA1

    a19d69302a3993f2aca91d73bdc128e47b6ce174

  • SHA256

    9397e1a3bd7e94ae5213d8dc4edef5e73fe8c6f0306196a1ffae832a3976e9ac

  • SHA512

    3c736528fd01383b6fb37a30b306ccd0cfa6b2129cea650263d0a5488e1052c6348acac115ad394c7c70b647d42dc55f4811bd2321b11c3c4c6a37f9c8d21536

  • SSDEEP

    98304:QDC5jNxoKkMBuu/KJmiuK3gqLkWSTGHVs49M4dm8:YCj6KPBuh8XUgqLXHLM4dD

Malware Config

Signatures

  • Detect Socks5Systemz Payload 3 IoCs
  • Socks5Systemz

    Socks5Systemz is a botnet written in C++.

  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 3 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.

  • Runs net.exe
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of WriteProcessMemory 15 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\5f4371e9fcc21652c9fb3867f64d4941.exe
    "C:\Users\Admin\AppData\Local\Temp\5f4371e9fcc21652c9fb3867f64d4941.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4312
    • C:\Users\Admin\AppData\Local\Temp\is-SSR65.tmp\5f4371e9fcc21652c9fb3867f64d4941.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-SSR65.tmp\5f4371e9fcc21652c9fb3867f64d4941.tmp" /SL5="$8022C,4446766,54272,C:\Users\Admin\AppData\Local\Temp\5f4371e9fcc21652c9fb3867f64d4941.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:1928
      • C:\Users\Admin\AppData\Local\DVD Drive report viewer\dvdreportviewer.exe
        "C:\Users\Admin\AppData\Local\DVD Drive report viewer\dvdreportviewer.exe" -i
        3⤵
        • Executes dropped EXE
        PID:2672
      • C:\Windows\SysWOW64\net.exe
        "C:\Windows\system32\net.exe" helpmsg 1103
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:1704
      • C:\Users\Admin\AppData\Local\DVD Drive report viewer\dvdreportviewer.exe
        "C:\Users\Admin\AppData\Local\DVD Drive report viewer\dvdreportviewer.exe" -s
        3⤵
        • Executes dropped EXE
        PID:4848
  • C:\Windows\SysWOW64\net1.exe
    C:\Windows\system32\net1 helpmsg 1103
    1⤵
      PID:3536

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\DVD Drive report viewer\dvdreportviewer.exe

      Filesize

      1024KB

      MD5

      6dd32bf998ded90dbb75fd9adc21e861

      SHA1

      d9ee6ca1688fe0e563ddc6a945798d8a04c50f77

      SHA256

      bb95d78447bb10869a3cad272392b42ea83b7d78d903fe00d81c0ac9ae2e2fb6

      SHA512

      c12a76f26301111503e78ce2c9daf80d66cbf8e61905200bc0b0b29905028bfd6111e2c16c69fff3762096ba752a317ca30603eb05e2c0b3ebb10650de5c8951

    • C:\Users\Admin\AppData\Local\DVD Drive report viewer\dvdreportviewer.exe

      Filesize

      832KB

      MD5

      7b5c1a7d9fc6b0fef2be24cc0990f8b1

      SHA1

      45932467c4ec8617d41a86d76e5d7d931f96ccea

      SHA256

      059bd0590b1b6e0497d342c2f64a0f0348e492a5cf7e02190301ab0bbbe94cce

      SHA512

      38c6baf40629beb564943ce680dd5d2136d5352b3d65fd6aff823b235ca28cfc851ee092ea378cf019c631efc276f1feb4ae4278efc71d1392af79a6b7af26b1

    • C:\Users\Admin\AppData\Local\Temp\is-OLND5.tmp\_isetup\_iscrypt.dll

      Filesize

      2KB

      MD5

      a69559718ab506675e907fe49deb71e9

      SHA1

      bc8f404ffdb1960b50c12ff9413c893b56f2e36f

      SHA256

      2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

      SHA512

      e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

    • C:\Users\Admin\AppData\Local\Temp\is-OLND5.tmp\_isetup\_isdecmp.dll

      Filesize

      13KB

      MD5

      a813d18268affd4763dde940246dc7e5

      SHA1

      c7366e1fd925c17cc6068001bd38eaef5b42852f

      SHA256

      e19781aabe466dd8779cb9c8fa41bbb73375447066bb34e876cf388a6ed63c64

      SHA512

      b310ed4cd2e94381c00a6a370fcb7cc867ebe425d705b69caaaaffdafbab91f72d357966916053e72e68ecf712f2af7585500c58bb53ec3e1d539179fcb45fb4

    • C:\Users\Admin\AppData\Local\Temp\is-SSR65.tmp\5f4371e9fcc21652c9fb3867f64d4941.tmp

      Filesize

      111KB

      MD5

      809465a767988f3342e7028154fb1589

      SHA1

      85abaa8c4e80931562dc9b93f2c63b05e9c76970

      SHA256

      3c57cdd6f778e883f220be4483a9971970c9e7a3519bb7fdad219d8669e4fc2b

      SHA512

      51cb9c7d83c9ea18a02da6178ca3fc3e738985289b700e5d3677d307c378bc7638ad5b87df382503fede706e892dfa3d70a62751003d082e1c278c6c5a5195d0

    • C:\Users\Admin\AppData\Local\Temp\is-SSR65.tmp\5f4371e9fcc21652c9fb3867f64d4941.tmp

      Filesize

      688KB

      MD5

      a7662827ecaeb4fc68334f6b8791b917

      SHA1

      f93151dd228d680aa2910280e51f0a84d0cad105

      SHA256

      05f159722d6905719d2d6f340981a293f40ab8a0d2d4a282c948066809d4af6d

      SHA512

      e9880b3f3ec9201e59114850e9c570d0ad6d3b0e04c60929a03cf983c62c505fcb6bb9dc3adeee88c78d43bd484159626b4a2f000a34b8883164c263f21e6f4a

    • memory/1928-134-0x00000000007A0000-0x00000000007A1000-memory.dmp

      Filesize

      4KB

    • memory/1928-132-0x0000000000400000-0x00000000004BC000-memory.dmp

      Filesize

      752KB

    • memory/1928-13-0x00000000007A0000-0x00000000007A1000-memory.dmp

      Filesize

      4KB

    • memory/2672-121-0x0000000000400000-0x00000000005C9000-memory.dmp

      Filesize

      1.8MB

    • memory/2672-125-0x0000000000400000-0x00000000005C9000-memory.dmp

      Filesize

      1.8MB

    • memory/2672-126-0x0000000000400000-0x00000000005C9000-memory.dmp

      Filesize

      1.8MB

    • memory/2672-122-0x0000000000400000-0x00000000005C9000-memory.dmp

      Filesize

      1.8MB

    • memory/4312-0-0x0000000000400000-0x0000000000414000-memory.dmp

      Filesize

      80KB

    • memory/4312-2-0x0000000000400000-0x0000000000414000-memory.dmp

      Filesize

      80KB

    • memory/4312-131-0x0000000000400000-0x0000000000414000-memory.dmp

      Filesize

      80KB

    • memory/4848-133-0x0000000000400000-0x00000000005C9000-memory.dmp

      Filesize

      1.8MB

    • memory/4848-153-0x0000000000400000-0x00000000005C9000-memory.dmp

      Filesize

      1.8MB

    • memory/4848-128-0x0000000000400000-0x00000000005C9000-memory.dmp

      Filesize

      1.8MB

    • memory/4848-137-0x0000000000400000-0x00000000005C9000-memory.dmp

      Filesize

      1.8MB

    • memory/4848-138-0x0000000000400000-0x00000000005C9000-memory.dmp

      Filesize

      1.8MB

    • memory/4848-141-0x0000000000400000-0x00000000005C9000-memory.dmp

      Filesize

      1.8MB

    • memory/4848-144-0x0000000000400000-0x00000000005C9000-memory.dmp

      Filesize

      1.8MB

    • memory/4848-147-0x0000000000400000-0x00000000005C9000-memory.dmp

      Filesize

      1.8MB

    • memory/4848-154-0x0000000000880000-0x0000000000922000-memory.dmp

      Filesize

      648KB

    • memory/4848-130-0x0000000000400000-0x00000000005C9000-memory.dmp

      Filesize

      1.8MB

    • memory/4848-148-0x0000000000880000-0x0000000000922000-memory.dmp

      Filesize

      648KB

    • memory/4848-157-0x0000000000400000-0x00000000005C9000-memory.dmp

      Filesize

      1.8MB

    • memory/4848-160-0x0000000000400000-0x00000000005C9000-memory.dmp

      Filesize

      1.8MB

    • memory/4848-161-0x0000000000880000-0x0000000000922000-memory.dmp

      Filesize

      648KB

    • memory/4848-164-0x0000000000400000-0x00000000005C9000-memory.dmp

      Filesize

      1.8MB

    • memory/4848-167-0x0000000000400000-0x00000000005C9000-memory.dmp

      Filesize

      1.8MB

    • memory/4848-170-0x0000000000400000-0x00000000005C9000-memory.dmp

      Filesize

      1.8MB

    • memory/4848-173-0x0000000000400000-0x00000000005C9000-memory.dmp

      Filesize

      1.8MB

    • memory/4848-177-0x0000000000400000-0x00000000005C9000-memory.dmp

      Filesize

      1.8MB

    • memory/4848-180-0x0000000000400000-0x00000000005C9000-memory.dmp

      Filesize

      1.8MB