Analysis

  • max time kernel
    153s
  • max time network
    160s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    28-06-2024 14:32

General

  • Target

    ac82b4fc0893c91e7bbd49f55c60394c773065f20560a86838b6e27328bd0d63.exe

  • Size

    4.9MB

  • MD5

    df3ab9646942241f8f3097ec8e22f312

  • SHA1

    ddca2ae67957d3a7d6fdd0a9860ec90360ad5e8b

  • SHA256

    ac82b4fc0893c91e7bbd49f55c60394c773065f20560a86838b6e27328bd0d63

  • SHA512

    7bd87ec6a2301faffd601aa29d2c7ab3def9e838d0b646abe217035846f689006af177b1a25dfe26edbcf1408825c6fe56ea4c9abafce9acf7c41b9e5f64253f

  • SSDEEP

    98304:CB7SV3Obs0aDiog6rLw22eTG72H60I0MnLdp/QGKUvM14Qx3:1Mbs0Qvgw8MGR0MLn/55MSQl

Malware Config

Signatures

  • Detect Socks5Systemz Payload 1 IoCs
  • Socks5Systemz

    Socks5Systemz is a botnet written in C++.

  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 1 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 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\ac82b4fc0893c91e7bbd49f55c60394c773065f20560a86838b6e27328bd0d63.exe
    "C:\Users\Admin\AppData\Local\Temp\ac82b4fc0893c91e7bbd49f55c60394c773065f20560a86838b6e27328bd0d63.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2332
    • C:\Users\Admin\AppData\Local\Temp\is-FQR0P.tmp\ac82b4fc0893c91e7bbd49f55c60394c773065f20560a86838b6e27328bd0d63.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-FQR0P.tmp\ac82b4fc0893c91e7bbd49f55c60394c773065f20560a86838b6e27328bd0d63.tmp" /SL5="$B0050,4915507,54272,C:\Users\Admin\AppData\Local\Temp\ac82b4fc0893c91e7bbd49f55c60394c773065f20560a86838b6e27328bd0d63.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:4048
      • C:\Users\Admin\AppData\Local\Total Recorder Free\totalrecorderfree32.exe
        "C:\Users\Admin\AppData\Local\Total Recorder Free\totalrecorderfree32.exe" -i
        3⤵
        • Executes dropped EXE
        PID:488
      • C:\Users\Admin\AppData\Local\Total Recorder Free\totalrecorderfree32.exe
        "C:\Users\Admin\AppData\Local\Total Recorder Free\totalrecorderfree32.exe" -s
        3⤵
        • Executes dropped EXE
        PID:2900
  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=1328 --field-trial-handle=3060,i,1774866140584649235,8085848018931772189,262144 --variations-seed-version /prefetch:8
    1⤵
      PID:3392

    Network

    MITRE ATT&CK Matrix ATT&CK v13

    Discovery

    Query Registry

    1
    T1012

    System Information Discovery

    1
    T1082

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\is-EPEH8.tmp\_isetup\_iscrypt.dll
      Filesize

      2KB

      MD5

      a69559718ab506675e907fe49deb71e9

      SHA1

      bc8f404ffdb1960b50c12ff9413c893b56f2e36f

      SHA256

      2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

      SHA512

      e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

    • C:\Users\Admin\AppData\Local\Temp\is-FQR0P.tmp\ac82b4fc0893c91e7bbd49f55c60394c773065f20560a86838b6e27328bd0d63.tmp
      Filesize

      680KB

      MD5

      30aac890bf700fefcd93022f840254b1

      SHA1

      70739b6caf72dd41b3b4cefd6ad2d4942db7ea2a

      SHA256

      796212c565796f92a71eb1fc46cbe8e06a746f1da93a232ae58fcd500670f4f8

      SHA512

      e954a5e610118163cbc471766d9d9f1a9dad95dc06b96cc3b7e9d695da1974e0ef57ab890d06e10bee25a055a022ddd17d63a2ef9919ffc3cee5c516b15567b2

    • C:\Users\Admin\AppData\Local\Total Recorder Free\totalrecorderfree32.exe
      Filesize

      3.4MB

      MD5

      57e6e48c920a316c9fd790a5c12714ea

      SHA1

      94cb960734aa22a57828fac573d2131eb1f1dff4

      SHA256

      9535d40517813037a3de472298e69928b4444d303e618ede1c62ceb38fe27564

      SHA512

      ca87eef9af109915c41c55edf649dd63e6831fc30cd93aa0c6d297dd09c48ebaf279e948697d10714ae5b48c9d65b24cff9a0e425bc69ca7d3aa789e51921009

    • memory/488-67-0x0000000000400000-0x0000000000769000-memory.dmp
      Filesize

      3.4MB

    • memory/488-64-0x0000000000400000-0x0000000000769000-memory.dmp
      Filesize

      3.4MB

    • memory/488-63-0x0000000000400000-0x0000000000769000-memory.dmp
      Filesize

      3.4MB

    • memory/488-62-0x0000000000400000-0x0000000000769000-memory.dmp
      Filesize

      3.4MB

    • memory/2332-18-0x0000000000400000-0x0000000000414000-memory.dmp
      Filesize

      80KB

    • memory/2332-7-0x0000000000400000-0x0000000000414000-memory.dmp
      Filesize

      80KB

    • memory/2332-1-0x0000000000400000-0x0000000000414000-memory.dmp
      Filesize

      80KB

    • memory/2332-2-0x0000000000401000-0x000000000040B000-memory.dmp
      Filesize

      40KB

    • memory/2900-76-0x0000000000400000-0x0000000000769000-memory.dmp
      Filesize

      3.4MB

    • memory/2900-80-0x0000000000400000-0x0000000000769000-memory.dmp
      Filesize

      3.4MB

    • memory/2900-70-0x0000000000400000-0x0000000000769000-memory.dmp
      Filesize

      3.4MB

    • memory/2900-108-0x0000000000400000-0x0000000000769000-memory.dmp
      Filesize

      3.4MB

    • memory/2900-74-0x0000000000400000-0x0000000000769000-memory.dmp
      Filesize

      3.4MB

    • memory/2900-105-0x0000000000400000-0x0000000000769000-memory.dmp
      Filesize

      3.4MB

    • memory/2900-77-0x0000000000400000-0x0000000000769000-memory.dmp
      Filesize

      3.4MB

    • memory/2900-112-0x0000000000400000-0x0000000000769000-memory.dmp
      Filesize

      3.4MB

    • memory/2900-83-0x0000000000400000-0x0000000000769000-memory.dmp
      Filesize

      3.4MB

    • memory/2900-87-0x0000000000400000-0x0000000000769000-memory.dmp
      Filesize

      3.4MB

    • memory/2900-89-0x0000000000400000-0x0000000000769000-memory.dmp
      Filesize

      3.4MB

    • memory/2900-90-0x0000000000850000-0x00000000008F1000-memory.dmp
      Filesize

      644KB

    • memory/2900-96-0x0000000000400000-0x0000000000769000-memory.dmp
      Filesize

      3.4MB

    • memory/2900-100-0x0000000000400000-0x0000000000769000-memory.dmp
      Filesize

      3.4MB

    • memory/2900-102-0x0000000000400000-0x0000000000769000-memory.dmp
      Filesize

      3.4MB

    • memory/4048-19-0x0000000000400000-0x00000000004BA000-memory.dmp
      Filesize

      744KB

    • memory/4048-72-0x0000000000400000-0x00000000004BA000-memory.dmp
      Filesize

      744KB

    • memory/4048-8-0x0000000000400000-0x00000000004BA000-memory.dmp
      Filesize

      744KB