Resubmissions

24/03/2024, 18:24

240324-w19nqaee97 10

24/03/2024, 18:21

240324-wzd6eshd8s 10

Analysis

  • max time kernel
    150s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-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://buruwwd.com/search/?q=67e28dd86c0ea7794406f94d7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa44e8889b5e4fa9281ae978f671ea771795af8e05c642db22f31dfe339426fa11af66c152adb719a9577e55b8603e983a608ffe12c0eb90993c

http://buruwwd.com/search/?q=67e28dd86c0ea7794406f94d7c27d78406abdd88be4b12eab517aa5c96bd86e490874896148ab2865b77f80ebad9cc0f7cb63037ed2ab423a4334383ba915d911ec07bb106a0708727e40ea678c45abbe74ffb0e2807e12571c17f3e83fe16c1ee969a3fc86c91

Signatures

  • Detect Socks5Systemz Payload 4 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:4984
    • C:\Users\Admin\AppData\Local\Temp\is-KKI1A.tmp\70954c38bf2bd7d8b250e99cd4fda9ca229ec45b11536acedbd1de638ae30da7.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-KKI1A.tmp\70954c38bf2bd7d8b250e99cd4fda9ca229ec45b11536acedbd1de638ae30da7.tmp" /SL5="$13002C,1969563,54272,C:\Users\Admin\AppData\Local\Temp\70954c38bf2bd7d8b250e99cd4fda9ca229ec45b11536acedbd1de638ae30da7.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:760
      • 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:3880
      • 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:5008

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        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

          1.8MB

          MD5

          cb03eb55275c0a4cee10df830f56a1b1

          SHA1

          a6f41741b181c8b511b79cbf543de102e3930be2

          SHA256

          12dd7c69a48b42ddfbd108f1fdc59c2f18cb98a78ef6bf496450e12bac5b95ba

          SHA512

          e4a3373cea0cb23a0a61a3936c0266ececfb86cd6b28231c163e9a9d3e89eeb07e452d4a13418958d83844b16c33dd68c30b1be95d8722562c3ff56e3f0b1ab9

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

          Filesize

          1.4MB

          MD5

          95c9f34d716ce2f008bf966c94e734c1

          SHA1

          ee8e8f499f25b347b2db830cf7a4666d00793aa1

          SHA256

          cc5fad9631398a1dae18e33712926a9113185133c82aa7a6a63fee7468607c0a

          SHA512

          7fb43abd7e53762125ea4dc685827ec9ed16dfe5560235a3d609ee68f80fd3c5fb192f1e24df169ef5789cc3555a763885d82d1cb7030deb38ad5ee7d7e4bd24

        • C:\Users\Admin\AppData\Local\Temp\is-1BECH.tmp\_isetup\_iscrypt.dll

          Filesize

          2KB

          MD5

          a69559718ab506675e907fe49deb71e9

          SHA1

          bc8f404ffdb1960b50c12ff9413c893b56f2e36f

          SHA256

          2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

          SHA512

          e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

        • C:\Users\Admin\AppData\Local\Temp\is-KKI1A.tmp\70954c38bf2bd7d8b250e99cd4fda9ca229ec45b11536acedbd1de638ae30da7.tmp

          Filesize

          677KB

          MD5

          5a1e3d46cb5a24f8e50b2a59d2ba1cf3

          SHA1

          fe86894c4757c144449bc744649b7fb9e03346f1

          SHA256

          d3a2c2ce7d70b3b9c30faf3f72bf4ebcdea8f331d6b6cac5dae906327997985d

          SHA512

          a27dc5c443abb31826b14e514aa717be5bf0f548b82170f79705f45ca28abaedc485c5b8738044735f61eca9e1f0ca659b519a3947551404085d07202ae709af

        • memory/760-6-0x0000000002340000-0x0000000002341000-memory.dmp

          Filesize

          4KB

        • memory/760-47-0x0000000000400000-0x00000000004B8000-memory.dmp

          Filesize

          736KB

        • memory/760-49-0x0000000002340000-0x0000000002341000-memory.dmp

          Filesize

          4KB

        • memory/3880-38-0x0000000000400000-0x0000000000633000-memory.dmp

          Filesize

          2.2MB

        • memory/3880-42-0x0000000000400000-0x0000000000633000-memory.dmp

          Filesize

          2.2MB

        • memory/3880-39-0x0000000000400000-0x0000000000633000-memory.dmp

          Filesize

          2.2MB

        • memory/3880-37-0x0000000000400000-0x0000000000633000-memory.dmp

          Filesize

          2.2MB

        • memory/4984-0-0x0000000000400000-0x0000000000414000-memory.dmp

          Filesize

          80KB

        • memory/4984-46-0x0000000000400000-0x0000000000414000-memory.dmp

          Filesize

          80KB

        • memory/5008-52-0x0000000000400000-0x0000000000633000-memory.dmp

          Filesize

          2.2MB

        • memory/5008-72-0x0000000000400000-0x0000000000633000-memory.dmp

          Filesize

          2.2MB

        • memory/5008-45-0x0000000000400000-0x0000000000633000-memory.dmp

          Filesize

          2.2MB

        • memory/5008-53-0x0000000000400000-0x0000000000633000-memory.dmp

          Filesize

          2.2MB

        • memory/5008-56-0x0000000000400000-0x0000000000633000-memory.dmp

          Filesize

          2.2MB

        • memory/5008-59-0x0000000000400000-0x0000000000633000-memory.dmp

          Filesize

          2.2MB

        • memory/5008-62-0x0000000000400000-0x0000000000633000-memory.dmp

          Filesize

          2.2MB

        • memory/5008-65-0x00000000008E0000-0x0000000000982000-memory.dmp

          Filesize

          648KB

        • memory/5008-66-0x0000000000400000-0x0000000000633000-memory.dmp

          Filesize

          2.2MB

        • memory/5008-48-0x0000000000400000-0x0000000000633000-memory.dmp

          Filesize

          2.2MB

        • memory/5008-75-0x0000000000400000-0x0000000000633000-memory.dmp

          Filesize

          2.2MB

        • memory/5008-76-0x00000000008E0000-0x0000000000982000-memory.dmp

          Filesize

          648KB

        • memory/5008-79-0x0000000000400000-0x0000000000633000-memory.dmp

          Filesize

          2.2MB

        • memory/5008-82-0x0000000000400000-0x0000000000633000-memory.dmp

          Filesize

          2.2MB

        • memory/5008-85-0x0000000000400000-0x0000000000633000-memory.dmp

          Filesize

          2.2MB

        • memory/5008-88-0x0000000000400000-0x0000000000633000-memory.dmp

          Filesize

          2.2MB

        • memory/5008-89-0x00000000008E0000-0x0000000000982000-memory.dmp

          Filesize

          648KB

        • memory/5008-90-0x00000000008E0000-0x0000000000982000-memory.dmp

          Filesize

          648KB

        • memory/5008-94-0x0000000000400000-0x0000000000633000-memory.dmp

          Filesize

          2.2MB

        • memory/5008-97-0x0000000000400000-0x0000000000633000-memory.dmp

          Filesize

          2.2MB