Resubmissions

24/03/2024, 18:24

240324-w19nqaee97 10

24/03/2024, 18:21

240324-wzd6eshd8s 10

Analysis

  • max time kernel
    141s
  • max time network
    127s
  • platform
    windows11-21h2_x64
  • resource
    win11-20240221-en
  • resource tags

    arch:x64arch:x86image:win11-20240221-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    24/03/2024, 18:21

General

  • Target

    70954c38bf2bd7d8b250e99cd4fda9ca229ec45b11536acedbd1de638ae30da7.exe

  • Size

    2.2MB

  • MD5

    7e73912ed93da7fec76cf2dc5b02a619

  • SHA1

    f41dab4f82d074ebb604c359f19ee17365bfebbf

  • SHA256

    70954c38bf2bd7d8b250e99cd4fda9ca229ec45b11536acedbd1de638ae30da7

  • SHA512

    d94c839f4d7c296a7b55b03b4694a38261b86695afbac92a921894f044db75219100a6f5590b1704a8b13a3355afc1596f817131b625282a4fe004bf17f5d814

  • SSDEEP

    49152:32qdexQWtsW8e1kD9XgbaF2TtOM9UlNQ8qQ1gVWWqjxPAI:mqdexRCe1kJgW2BOV75sqNPAI

Malware Config

Extracted

Family

socks5systemz

C2

http://bdolmbo.com/search/?q=67e28dd8645af52e420aad1d7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4ee8889b5e4fa9281ae978a371ea771795af8e05c642db22f31dfe339426fa12a466c553adb719a9577e55b8603e983a608ffe12c0eb90993c

http://bdolmbo.com/search/?q=67e28dd8645af52e420aad1d7c27d78406abdd88be4b12eab517aa5c96bd86ef95824a815a8bbc896c58e713bc90c91b36b5281fc235a925ed3e00d6bd974a95129070b611e96cc92be510b866db51b9e34eed4c2b14a82966836f23d7f210c7ee94993bc96a9511

Signatures

  • Detect Socks5Systemz Payload 5 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 WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\70954c38bf2bd7d8b250e99cd4fda9ca229ec45b11536acedbd1de638ae30da7.exe
    "C:\Users\Admin\AppData\Local\Temp\70954c38bf2bd7d8b250e99cd4fda9ca229ec45b11536acedbd1de638ae30da7.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2280
    • C:\Users\Admin\AppData\Local\Temp\is-A5L6R.tmp\70954c38bf2bd7d8b250e99cd4fda9ca229ec45b11536acedbd1de638ae30da7.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-A5L6R.tmp\70954c38bf2bd7d8b250e99cd4fda9ca229ec45b11536acedbd1de638ae30da7.tmp" /SL5="$700D8,1969563,54272,C:\Users\Admin\AppData\Local\Temp\70954c38bf2bd7d8b250e99cd4fda9ca229ec45b11536acedbd1de638ae30da7.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:4888
      • C:\Users\Admin\AppData\Local\Site Free Edition\sitefreeedition.exe
        "C:\Users\Admin\AppData\Local\Site Free Edition\sitefreeedition.exe" -i
        3⤵
        • Executes dropped EXE
        PID:3256
      • C:\Users\Admin\AppData\Local\Site Free Edition\sitefreeedition.exe
        "C:\Users\Admin\AppData\Local\Site Free Edition\sitefreeedition.exe" -s
        3⤵
        • Executes dropped EXE
        PID:2964

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\Users\Admin\AppData\Local\Site Free Edition\sitefreeedition.exe

          Filesize

          2.2MB

          MD5

          6a4f0286963b6654a1015a20f9cd194e

          SHA1

          098d0aba2c89da4ebd1a1a81879cb7424216d746

          SHA256

          23082683343623420d29cd13e9e6190f8604a800117b162696899dd4f75291b3

          SHA512

          c5df65ea84af160847772496f142f03f64c453a232b09e4681b34967e2631f39f749cf904b5d3a79c865f15f6a6767db00f1463c45d4ba353370a53bdce9c724

        • C:\Users\Admin\AppData\Local\Site Free Edition\sitefreeedition.exe

          Filesize

          1.7MB

          MD5

          c5a2ed215ea7ff5593aab15ec2985cf6

          SHA1

          55141beb31e2fc1f327feec0d59a1047fde4dc31

          SHA256

          8f440eeb056de9a38121b76407d57efa14d891627415402eb844c9e70c13f59a

          SHA512

          80aacb557610855252dee96ed5b44a03635f4ee6d01a0f26b2a29739efdecd93975d16da78aade82e281d2e873a9b0a6b8272cba34eb51fa4d37826bae5430ac

        • C:\Users\Admin\AppData\Local\Site Free Edition\sitefreeedition.exe

          Filesize

          1.2MB

          MD5

          7c78ba7bfb2f99a2381ae9d4b96f3006

          SHA1

          d9e16a17de4f253cfa74a079ff136426e9c73745

          SHA256

          c9c3a48164d74474c3b9ac5d6a3e26ea211b8168b07b91fab431f01c69803db7

          SHA512

          e198d960981fc0fe40dfdfd127c677e7931807f64364ffceeb1de2310bfbee1f9f30bbf3f31057dbb1b16d3ec8ca43741371b58f9e7f86b68e9249ede88f7dbc

        • C:\Users\Admin\AppData\Local\Temp\is-A5L6R.tmp\70954c38bf2bd7d8b250e99cd4fda9ca229ec45b11536acedbd1de638ae30da7.tmp

          Filesize

          677KB

          MD5

          5a1e3d46cb5a24f8e50b2a59d2ba1cf3

          SHA1

          fe86894c4757c144449bc744649b7fb9e03346f1

          SHA256

          d3a2c2ce7d70b3b9c30faf3f72bf4ebcdea8f331d6b6cac5dae906327997985d

          SHA512

          a27dc5c443abb31826b14e514aa717be5bf0f548b82170f79705f45ca28abaedc485c5b8738044735f61eca9e1f0ca659b519a3947551404085d07202ae709af

        • C:\Users\Admin\AppData\Local\Temp\is-OK9IG.tmp\_isetup\_iscrypt.dll

          Filesize

          2KB

          MD5

          a69559718ab506675e907fe49deb71e9

          SHA1

          bc8f404ffdb1960b50c12ff9413c893b56f2e36f

          SHA256

          2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

          SHA512

          e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

        • memory/2280-2-0x0000000000400000-0x0000000000414000-memory.dmp

          Filesize

          80KB

        • memory/2280-0-0x0000000000400000-0x0000000000414000-memory.dmp

          Filesize

          80KB

        • memory/2280-48-0x0000000000400000-0x0000000000414000-memory.dmp

          Filesize

          80KB

        • memory/2964-79-0x0000000000AE0000-0x0000000000B82000-memory.dmp

          Filesize

          648KB

        • memory/2964-64-0x0000000000400000-0x0000000000633000-memory.dmp

          Filesize

          2.2MB

        • memory/2964-100-0x0000000000400000-0x0000000000633000-memory.dmp

          Filesize

          2.2MB

        • memory/2964-46-0x0000000000400000-0x0000000000633000-memory.dmp

          Filesize

          2.2MB

        • memory/2964-47-0x0000000000400000-0x0000000000633000-memory.dmp

          Filesize

          2.2MB

        • memory/2964-97-0x0000000000400000-0x0000000000633000-memory.dmp

          Filesize

          2.2MB

        • memory/2964-93-0x0000000000AE0000-0x0000000000B82000-memory.dmp

          Filesize

          648KB

        • memory/2964-50-0x0000000000400000-0x0000000000633000-memory.dmp

          Filesize

          2.2MB

        • memory/2964-92-0x0000000000AE0000-0x0000000000B82000-memory.dmp

          Filesize

          648KB

        • memory/2964-52-0x0000000000400000-0x0000000000633000-memory.dmp

          Filesize

          2.2MB

        • memory/2964-55-0x0000000000400000-0x0000000000633000-memory.dmp

          Filesize

          2.2MB

        • memory/2964-58-0x0000000000400000-0x0000000000633000-memory.dmp

          Filesize

          2.2MB

        • memory/2964-61-0x0000000000400000-0x0000000000633000-memory.dmp

          Filesize

          2.2MB

        • memory/2964-91-0x0000000000400000-0x0000000000633000-memory.dmp

          Filesize

          2.2MB

        • memory/2964-65-0x0000000000AE0000-0x0000000000B82000-memory.dmp

          Filesize

          648KB

        • memory/2964-69-0x0000000000400000-0x0000000000633000-memory.dmp

          Filesize

          2.2MB

        • memory/2964-70-0x0000000000AE0000-0x0000000000B82000-memory.dmp

          Filesize

          648KB

        • memory/2964-75-0x0000000000400000-0x0000000000633000-memory.dmp

          Filesize

          2.2MB

        • memory/2964-78-0x0000000000400000-0x0000000000633000-memory.dmp

          Filesize

          2.2MB

        • memory/2964-88-0x0000000000400000-0x0000000000633000-memory.dmp

          Filesize

          2.2MB

        • memory/2964-82-0x0000000000400000-0x0000000000633000-memory.dmp

          Filesize

          2.2MB

        • memory/2964-85-0x0000000000400000-0x0000000000633000-memory.dmp

          Filesize

          2.2MB

        • memory/3256-43-0x0000000000400000-0x0000000000633000-memory.dmp

          Filesize

          2.2MB

        • memory/3256-39-0x0000000000400000-0x0000000000633000-memory.dmp

          Filesize

          2.2MB

        • memory/3256-38-0x0000000000400000-0x0000000000633000-memory.dmp

          Filesize

          2.2MB

        • memory/4888-7-0x0000000002440000-0x0000000002441000-memory.dmp

          Filesize

          4KB

        • memory/4888-51-0x0000000002440000-0x0000000002441000-memory.dmp

          Filesize

          4KB

        • memory/4888-49-0x0000000000400000-0x00000000004B8000-memory.dmp

          Filesize

          736KB