Analysis

  • max time kernel
    117s
  • max time network
    18s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    22/02/2024, 21:03

General

  • Target

    F98B2D4646C95810DB7AF07535AD6688.exe

  • Size

    4.2MB

  • MD5

    f98b2d4646c95810db7af07535ad6688

  • SHA1

    f61d8a911aaa3f79ada6163c133ddd03bffe8806

  • SHA256

    2f63ab6e1fc2c86308284d7e6becebb2b4581b6f520da008d9ea8a558718484a

  • SHA512

    02a3a77c4ac40c13b347c72950e186d2889b9d46becd672b19b584ec752906443ab1f63149770edc49350fb95605cc07cd7b3f00c4ae81bec4f1ae68948c3426

  • SSDEEP

    98304:IaKj6E21RV0hiaIyTZWxOIay7e89CS7+LWTPTscL0:AjVSVqXtW4/UCnW3sT

Malware Config

Signatures

  • Detect Socks5Systemz Payload 3 IoCs
  • Socks5Systemz

    Socks5Systemz is a botnet written in C++.

  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 6 IoCs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of WriteProcessMemory 15 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\F98B2D4646C95810DB7AF07535AD6688.exe
    "C:\Users\Admin\AppData\Local\Temp\F98B2D4646C95810DB7AF07535AD6688.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:2232
    • C:\Users\Admin\AppData\Local\Temp\is-HM8A0.tmp\F98B2D4646C95810DB7AF07535AD6688.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-HM8A0.tmp\F98B2D4646C95810DB7AF07535AD6688.tmp" /SL5="$70120,4181011,54272,C:\Users\Admin\AppData\Local\Temp\F98B2D4646C95810DB7AF07535AD6688.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:2020
      • C:\Users\Admin\AppData\Local\VSO Inspector\vsoinspector.exe
        "C:\Users\Admin\AppData\Local\VSO Inspector\vsoinspector.exe" -i
        3⤵
        • Executes dropped EXE
        PID:2712
      • C:\Users\Admin\AppData\Local\VSO Inspector\vsoinspector.exe
        "C:\Users\Admin\AppData\Local\VSO Inspector\vsoinspector.exe" -s
        3⤵
        • Executes dropped EXE
        PID:2372

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • \Users\Admin\AppData\Local\Temp\is-HM8A0.tmp\F98B2D4646C95810DB7AF07535AD6688.tmp

          Filesize

          689KB

          MD5

          d5709c2171e58c1106a886c080be01f8

          SHA1

          1f7ae64452f9ba78d65c0d4e6a4d0167f26d04d1

          SHA256

          4f80b4906439bec266cc9f4552f7cfd82bdeac0d7bf29da0040a673cd6576561

          SHA512

          965d1eca832cbc354717170a42833212da56117485219203758aff248ceb95139ac0a208fe5eb998467307c13e0be3dd6a1b196ef141bd462cc7642c2cdb5ccd

        • \Users\Admin\AppData\Local\Temp\is-VU9TK.tmp\_isetup\_iscrypt.dll

          Filesize

          2KB

          MD5

          a69559718ab506675e907fe49deb71e9

          SHA1

          bc8f404ffdb1960b50c12ff9413c893b56f2e36f

          SHA256

          2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

          SHA512

          e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

        • \Users\Admin\AppData\Local\Temp\is-VU9TK.tmp\_isetup\_isdecmp.dll

          Filesize

          13KB

          MD5

          a813d18268affd4763dde940246dc7e5

          SHA1

          c7366e1fd925c17cc6068001bd38eaef5b42852f

          SHA256

          e19781aabe466dd8779cb9c8fa41bbb73375447066bb34e876cf388a6ed63c64

          SHA512

          b310ed4cd2e94381c00a6a370fcb7cc867ebe425d705b69caaaaffdafbab91f72d357966916053e72e68ecf712f2af7585500c58bb53ec3e1d539179fcb45fb4

        • \Users\Admin\AppData\Local\Temp\is-VU9TK.tmp\_isetup\_shfoldr.dll

          Filesize

          22KB

          MD5

          92dc6ef532fbb4a5c3201469a5b5eb63

          SHA1

          3e89ff837147c16b4e41c30d6c796374e0b8e62c

          SHA256

          9884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87

          SHA512

          9908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3

        • \Users\Admin\AppData\Local\VSO Inspector\vsoinspector.exe

          Filesize

          3.3MB

          MD5

          6817d1a22f42e096ad657f591962d4be

          SHA1

          60c4bd31aef44293bc9f1b7765419f926c7da876

          SHA256

          4a62e215b029be175b8d1c5d877a052be9498108dfd0e20fe0946f2345317eaa

          SHA512

          343728cf09fb344bb016ecfe6a9a88fada58466cd8862c3db0217790e05654859f8149e48453e35f2c3eadcbb0f053c7128398e6eaf83c17665c33b7eead4aed

        • memory/2020-7-0x0000000000240000-0x0000000000241000-memory.dmp

          Filesize

          4KB

        • memory/2020-75-0x0000000003100000-0x0000000003458000-memory.dmp

          Filesize

          3.3MB

        • memory/2020-60-0x0000000003100000-0x0000000003458000-memory.dmp

          Filesize

          3.3MB

        • memory/2020-74-0x0000000000240000-0x0000000000241000-memory.dmp

          Filesize

          4KB

        • memory/2020-72-0x0000000000400000-0x00000000004BC000-memory.dmp

          Filesize

          752KB

        • memory/2232-71-0x0000000000400000-0x0000000000414000-memory.dmp

          Filesize

          80KB

        • memory/2232-0-0x0000000000400000-0x0000000000414000-memory.dmp

          Filesize

          80KB

        • memory/2372-73-0x0000000000400000-0x0000000000758000-memory.dmp

          Filesize

          3.3MB

        • memory/2372-102-0x0000000000400000-0x0000000000758000-memory.dmp

          Filesize

          3.3MB

        • memory/2372-68-0x0000000000400000-0x0000000000758000-memory.dmp

          Filesize

          3.3MB

        • memory/2372-112-0x0000000000400000-0x0000000000758000-memory.dmp

          Filesize

          3.3MB

        • memory/2372-109-0x0000000000400000-0x0000000000758000-memory.dmp

          Filesize

          3.3MB

        • memory/2372-106-0x0000000000400000-0x0000000000758000-memory.dmp

          Filesize

          3.3MB

        • memory/2372-105-0x0000000002700000-0x00000000027A2000-memory.dmp

          Filesize

          648KB

        • memory/2372-78-0x0000000000400000-0x0000000000758000-memory.dmp

          Filesize

          3.3MB

        • memory/2372-81-0x0000000000400000-0x0000000000758000-memory.dmp

          Filesize

          3.3MB

        • memory/2372-82-0x0000000000400000-0x0000000000758000-memory.dmp

          Filesize

          3.3MB

        • memory/2372-85-0x0000000000400000-0x0000000000758000-memory.dmp

          Filesize

          3.3MB

        • memory/2372-88-0x0000000000400000-0x0000000000758000-memory.dmp

          Filesize

          3.3MB

        • memory/2372-91-0x0000000000400000-0x0000000000758000-memory.dmp

          Filesize

          3.3MB

        • memory/2372-92-0x0000000002700000-0x00000000027A2000-memory.dmp

          Filesize

          648KB

        • memory/2372-94-0x0000000002700000-0x00000000027A2000-memory.dmp

          Filesize

          648KB

        • memory/2372-99-0x0000000000400000-0x0000000000758000-memory.dmp

          Filesize

          3.3MB

        • memory/2372-70-0x0000000000400000-0x0000000000758000-memory.dmp

          Filesize

          3.3MB

        • memory/2712-61-0x0000000000400000-0x0000000000758000-memory.dmp

          Filesize

          3.3MB

        • memory/2712-62-0x0000000000400000-0x0000000000758000-memory.dmp

          Filesize

          3.3MB

        • memory/2712-63-0x0000000000400000-0x0000000000758000-memory.dmp

          Filesize

          3.3MB

        • memory/2712-66-0x0000000000400000-0x0000000000758000-memory.dmp

          Filesize

          3.3MB