Analysis

  • max time kernel
    150s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23/03/2024, 14:21

General

  • Target

    4b9151a0fcc00b7ebe774bb2489bc530.exe

  • Size

    2.2MB

  • MD5

    4b9151a0fcc00b7ebe774bb2489bc530

  • SHA1

    40fa43f01b6bdf5e946bb2088fec786f3d3b708a

  • SHA256

    45d3e2a90ffe10319fe19d04af1fbe783101c3be4841710e506ac84d0e882d07

  • SHA512

    8ea55f1c06178f87edade8fbbd4031905195fa86a422d5e07c6c06f2cf538f4649691d867b740a0c6b2a178ab39f7dfde1a95108266e3dff74df33361930866d

  • SSDEEP

    49152:321Jclh7yWuOym9ASMvcW63qheRFv2vLsmL2H2H5QihKF/nyGH:m1JkuWukASkncRszZ2H2H5NUVnXH

Malware Config

Extracted

Family

socks5systemz

C2

http://ddufggj.info/search/?q=67e28dd83a5da32a155afd1b7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4ce8889b5e4fa9281ae978a271ea771795af8e05c642db22f31dfe339426fa11af66c152adb719a9577e55b8603e983a608ffe13c0ec929e3e

Signatures

  • Detect Socks5Systemz Payload 3 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\4b9151a0fcc00b7ebe774bb2489bc530.exe
    "C:\Users\Admin\AppData\Local\Temp\4b9151a0fcc00b7ebe774bb2489bc530.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:5404
    • C:\Users\Admin\AppData\Local\Temp\is-A7NDN.tmp\4b9151a0fcc00b7ebe774bb2489bc530.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-A7NDN.tmp\4b9151a0fcc00b7ebe774bb2489bc530.tmp" /SL5="$A0116,1966609,54272,C:\Users\Admin\AppData\Local\Temp\4b9151a0fcc00b7ebe774bb2489bc530.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:5036
      • C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe
        "C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe" -i
        3⤵
        • Executes dropped EXE
        PID:5600
      • C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe
        "C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe" -s
        3⤵
        • Executes dropped EXE
        PID:1084
  • 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=3996 --field-trial-handle=2280,i,1836084024518340990,18250262151825427757,262144 --variations-seed-version /prefetch:8
    1⤵
      PID:4412

    Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe

            Filesize

            2.2MB

            MD5

            8394350b7547ee4760de84e7a5eea444

            SHA1

            d51469cdcfcaef3a7b5430a5a100c3ec6342d3d7

            SHA256

            0bccbc687369a0731a3a04702d2368b8799854f63de4ca09968c6ea6caa6c75c

            SHA512

            502d368f75922408459f45b3d83943d7b9a4f6154e4cc2ca8a156df0959e354cfebc6e9aefefbbae7f5b7d1c360b7093f08b1974841e33eb67b4a4a3f49427a7

          • C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe

            Filesize

            92KB

            MD5

            841ca5703ed222fdf25141010366384f

            SHA1

            7e03c93e0cb992925a8e01aec43ac564097073b1

            SHA256

            87fd129f43fea17b466c0801bb9df22a4ffc7615ea6aa41ac84fb7858c90a4e9

            SHA512

            7e6f6d07b7512c64bfd37cd76000715ce9307a90bc7f6934fd9b7b0f0a069463f2e65a87d3409b1a1b7a6153c5c181abf16c0fb213f4bce496328387737fc12d

          • C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe

            Filesize

            887KB

            MD5

            283bc25f5dde274949fc2a546687341f

            SHA1

            af5a43f8ec681069ac8a06e99c08ed7d2e431a56

            SHA256

            8fcee31de7e6bae57b2969487865c0257bc436434a66b9cc7d23d0360824a322

            SHA512

            3866cceb939f830407c6e3b3957b852f29a799a16755430cb4b931a3c7c96d79e2e028eae8439a53a0e1bc5f9eff838218f121015f4ac6f1947188b9a8bd2cd5

          • C:\Users\Admin\AppData\Local\Temp\is-3JGCI.tmp\_isetup\_iscrypt.dll

            Filesize

            2KB

            MD5

            a69559718ab506675e907fe49deb71e9

            SHA1

            bc8f404ffdb1960b50c12ff9413c893b56f2e36f

            SHA256

            2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

            SHA512

            e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

          • C:\Users\Admin\AppData\Local\Temp\is-A7NDN.tmp\4b9151a0fcc00b7ebe774bb2489bc530.tmp

            Filesize

            677KB

            MD5

            d394fc26de69f06950dc1c71959b0261

            SHA1

            7c9448fc3582f19763eaa8e3c5383b7873aee017

            SHA256

            405e474735b776fc09dc71d3a5b44c50b9e2c745cdf7e79eb89dc791866ffe2a

            SHA512

            63ef7265aac27715f5b799b588955dd5df3f49ecd0042fba69d0effe7dfe24d6777079677a809e817e4e8243a2185ca9c3a8022c9247bb2a070c213f06d7bc10

          • memory/1084-69-0x0000000000400000-0x0000000000642000-memory.dmp

            Filesize

            2.3MB

          • memory/1084-59-0x0000000000400000-0x0000000000642000-memory.dmp

            Filesize

            2.3MB

          • memory/1084-96-0x0000000000400000-0x0000000000642000-memory.dmp

            Filesize

            2.3MB

          • memory/1084-92-0x0000000000400000-0x0000000000642000-memory.dmp

            Filesize

            2.3MB

          • memory/1084-88-0x0000000000400000-0x0000000000642000-memory.dmp

            Filesize

            2.3MB

          • memory/1084-86-0x0000000000400000-0x0000000000642000-memory.dmp

            Filesize

            2.3MB

          • memory/1084-83-0x0000000000400000-0x0000000000642000-memory.dmp

            Filesize

            2.3MB

          • memory/1084-45-0x0000000000400000-0x0000000000642000-memory.dmp

            Filesize

            2.3MB

          • memory/1084-47-0x0000000000400000-0x0000000000642000-memory.dmp

            Filesize

            2.3MB

          • memory/1084-81-0x0000000000790000-0x0000000000832000-memory.dmp

            Filesize

            648KB

          • memory/1084-79-0x0000000000400000-0x0000000000642000-memory.dmp

            Filesize

            2.3MB

          • memory/1084-51-0x0000000000400000-0x0000000000642000-memory.dmp

            Filesize

            2.3MB

          • memory/1084-75-0x0000000000400000-0x0000000000642000-memory.dmp

            Filesize

            2.3MB

          • memory/1084-55-0x0000000000400000-0x0000000000642000-memory.dmp

            Filesize

            2.3MB

          • memory/1084-56-0x0000000000400000-0x0000000000642000-memory.dmp

            Filesize

            2.3MB

          • memory/1084-70-0x0000000000790000-0x0000000000832000-memory.dmp

            Filesize

            648KB

          • memory/1084-62-0x0000000000400000-0x0000000000642000-memory.dmp

            Filesize

            2.3MB

          • memory/1084-64-0x0000000000400000-0x0000000000642000-memory.dmp

            Filesize

            2.3MB

          • memory/1084-68-0x0000000000790000-0x0000000000832000-memory.dmp

            Filesize

            648KB

          • memory/5036-52-0x0000000000660000-0x0000000000661000-memory.dmp

            Filesize

            4KB

          • memory/5036-49-0x0000000000400000-0x00000000004B8000-memory.dmp

            Filesize

            736KB

          • memory/5036-7-0x0000000000660000-0x0000000000661000-memory.dmp

            Filesize

            4KB

          • memory/5404-0-0x0000000000400000-0x0000000000414000-memory.dmp

            Filesize

            80KB

          • memory/5404-48-0x0000000000400000-0x0000000000414000-memory.dmp

            Filesize

            80KB

          • memory/5404-2-0x0000000000400000-0x0000000000414000-memory.dmp

            Filesize

            80KB

          • memory/5600-38-0x0000000000400000-0x0000000000642000-memory.dmp

            Filesize

            2.3MB

          • memory/5600-43-0x0000000000400000-0x0000000000642000-memory.dmp

            Filesize

            2.3MB

          • memory/5600-39-0x0000000000400000-0x0000000000642000-memory.dmp

            Filesize

            2.3MB

          • memory/5600-42-0x0000000000400000-0x0000000000642000-memory.dmp

            Filesize

            2.3MB