Analysis

  • max time kernel
    149s
  • max time network
    150s
  • 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, 11:56

General

  • Target

    81ff59064aee2985951585849fdb1e72.exe

  • Size

    2.0MB

  • MD5

    81ff59064aee2985951585849fdb1e72

  • SHA1

    86e8537fdec1a12be3a79318ef37ac8137edcbea

  • SHA256

    6e8879c7cf7985de7664ac3d756fce01503d9d18fdef1bfdafd568a4cecde171

  • SHA512

    8e7dcea7445b2f9ffd11991f700036a28f24df3d4b27b252dad829d844fefc25afdd2ce0b7112c71255421b4776b07e388d0d2f413f1177c6222b55e1fe2269d

  • SSDEEP

    49152:32wTpneykPmxLYSeue04pW3bJr7yOtXXJBdb5v/gDe7D:mwTpnHJYSupW31KQXxF3gDc

Malware Config

Extracted

Family

socks5systemz

C2

http://ceedgfm.net/search/?q=67e28dd83a5da32a155afd1b7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4ce8889b5e4fa9281ae978a271ea771795af8e05c645db22f31dfe339426fa11af66c152adb719a9577e55b8603e983a608ffe10c9ea95993c

http://ceedgfm.net/search/?q=67e28dd83a5da32a155afd1b7c27d78406abdd88be4b12eab517aa5c96bd86ee96854f855a8bbc896c58e713bc90c91936b5281fc235a925ed3e01d6bd974a95129070b616e96cc92be510b866db52b2e34aec4c2b14a82966836f23d7f210c7ee949b32c86f9511

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\81ff59064aee2985951585849fdb1e72.exe
    "C:\Users\Admin\AppData\Local\Temp\81ff59064aee2985951585849fdb1e72.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2000
    • C:\Users\Admin\AppData\Local\Temp\is-1JDAG.tmp\81ff59064aee2985951585849fdb1e72.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-1JDAG.tmp\81ff59064aee2985951585849fdb1e72.tmp" /SL5="$E004C,1696724,54272,C:\Users\Admin\AppData\Local\Temp\81ff59064aee2985951585849fdb1e72.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:1076
      • C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe
        "C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe" -i
        3⤵
        • Executes dropped EXE
        PID:2396
      • C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe
        "C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe" -s
        3⤵
        • Executes dropped EXE
        PID:1788
  • 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=1424 --field-trial-handle=2180,i,12780723798465539942,12010519452607841069,262144 --variations-seed-version /prefetch:8
    1⤵
      PID:3252

    Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

          Loading Replay Monitor...

          Downloads

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

            Filesize

            2.0MB

            MD5

            7e7e6a14c9a33e1d872bdfcd6f01df79

            SHA1

            7e8e4ab16f34ca58187c6cc607c6762d575bf888

            SHA256

            c2d9b32599563008ad23cc524da0dc03eeabd0f5c75ad92fbc7993531125639a

            SHA512

            d6a68fa321637bdb596aafc92bbe5192e9a0bac2ebbb872fd551e01f2de939f9db2ca7765a124a864aaeb6613c7c86104111cfb0eeeab1be31adc323f328c668

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

            Filesize

            981KB

            MD5

            84e4e2880829054564b300a8a7f2f436

            SHA1

            f676dff6581aad74906f47e9518657167066aa99

            SHA256

            fddc87f5fb6aa9d886f050ea19166d0e27a55a9a35cc210352920205ee72ca9c

            SHA512

            1d0dce5975523c1c1aa5a05483bc2d6accb2c98bbc80e35640048419aedc89d5d99dc20c2f3c33a55922ed56648fc6d0182b950ea17c73975a138e2ae3595f0c

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

            Filesize

            791KB

            MD5

            a42d511329bb15ef8904bb288981c979

            SHA1

            331c2e9e3eabf339ef89f62651458431f32b8edd

            SHA256

            c2821e1ddf6f9954fb7438570c6fc935691fd9512f899e36bc4d543abc8d9b74

            SHA512

            cce562ec346e634bfd2ee44a640d0753508e9ab6f39cf873e7c70704d160a64749ab6c728086259082458e86035a0ddb0bfad5c787e7772aa601c9679150de59

          • C:\Users\Admin\AppData\Local\Temp\is-1JDAG.tmp\81ff59064aee2985951585849fdb1e72.tmp

            Filesize

            677KB

            MD5

            92f7775908bb12183914bb0753782913

            SHA1

            8d1091da36832942d48f2fe9a1a216fdd556b9c4

            SHA256

            a43c4e3916a92d299c22e2010383b2a8f85e14882a610de57bb2fef91f7984ed

            SHA512

            7e39cafdc00a46f2353f6eeaa8fee0d7c94f489d1fd4581e125408bae63a2e6cd135f65807c3574c833f970b64106badb7dd0a2a6ee9859b3b60b3d1b6e19c39

          • C:\Users\Admin\AppData\Local\Temp\is-B93D4.tmp\_isetup\_iscrypt.dll

            Filesize

            2KB

            MD5

            a69559718ab506675e907fe49deb71e9

            SHA1

            bc8f404ffdb1960b50c12ff9413c893b56f2e36f

            SHA256

            2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

            SHA512

            e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

          • memory/1076-52-0x0000000002350000-0x0000000002351000-memory.dmp

            Filesize

            4KB

          • memory/1076-7-0x0000000002350000-0x0000000002351000-memory.dmp

            Filesize

            4KB

          • memory/1076-49-0x0000000000400000-0x00000000004B8000-memory.dmp

            Filesize

            736KB

          • memory/1788-54-0x0000000000400000-0x0000000000601000-memory.dmp

            Filesize

            2.0MB

          • memory/1788-67-0x0000000000400000-0x0000000000601000-memory.dmp

            Filesize

            2.0MB

          • memory/1788-100-0x0000000000400000-0x0000000000601000-memory.dmp

            Filesize

            2.0MB

          • memory/1788-97-0x0000000000400000-0x0000000000601000-memory.dmp

            Filesize

            2.0MB

          • memory/1788-46-0x0000000000400000-0x0000000000601000-memory.dmp

            Filesize

            2.0MB

          • memory/1788-47-0x0000000000400000-0x0000000000601000-memory.dmp

            Filesize

            2.0MB

          • memory/1788-94-0x0000000000760000-0x0000000000802000-memory.dmp

            Filesize

            648KB

          • memory/1788-93-0x0000000000760000-0x0000000000802000-memory.dmp

            Filesize

            648KB

          • memory/1788-50-0x0000000000400000-0x0000000000601000-memory.dmp

            Filesize

            2.0MB

          • memory/1788-91-0x0000000000400000-0x0000000000601000-memory.dmp

            Filesize

            2.0MB

          • memory/1788-88-0x0000000000400000-0x0000000000601000-memory.dmp

            Filesize

            2.0MB

          • memory/1788-55-0x0000000000400000-0x0000000000601000-memory.dmp

            Filesize

            2.0MB

          • memory/1788-58-0x0000000000400000-0x0000000000601000-memory.dmp

            Filesize

            2.0MB

          • memory/1788-61-0x0000000000400000-0x0000000000601000-memory.dmp

            Filesize

            2.0MB

          • memory/1788-64-0x0000000000400000-0x0000000000601000-memory.dmp

            Filesize

            2.0MB

          • memory/1788-85-0x0000000000400000-0x0000000000601000-memory.dmp

            Filesize

            2.0MB

          • memory/1788-69-0x0000000000760000-0x0000000000802000-memory.dmp

            Filesize

            648KB

          • memory/1788-68-0x0000000000760000-0x0000000000802000-memory.dmp

            Filesize

            648KB

          • memory/1788-75-0x0000000000400000-0x0000000000601000-memory.dmp

            Filesize

            2.0MB

          • memory/1788-78-0x0000000000400000-0x0000000000601000-memory.dmp

            Filesize

            2.0MB

          • memory/1788-80-0x0000000000760000-0x0000000000802000-memory.dmp

            Filesize

            648KB

          • memory/1788-82-0x0000000000400000-0x0000000000601000-memory.dmp

            Filesize

            2.0MB

          • memory/2000-0-0x0000000000400000-0x0000000000414000-memory.dmp

            Filesize

            80KB

          • memory/2000-2-0x0000000000400000-0x0000000000414000-memory.dmp

            Filesize

            80KB

          • memory/2000-48-0x0000000000400000-0x0000000000414000-memory.dmp

            Filesize

            80KB

          • memory/2396-40-0x0000000000400000-0x0000000000601000-memory.dmp

            Filesize

            2.0MB

          • memory/2396-38-0x0000000000400000-0x0000000000601000-memory.dmp

            Filesize

            2.0MB

          • memory/2396-39-0x0000000000400000-0x0000000000601000-memory.dmp

            Filesize

            2.0MB

          • memory/2396-43-0x0000000000400000-0x0000000000601000-memory.dmp

            Filesize

            2.0MB