Analysis

  • max time kernel
    147s
  • 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
    23/03/2024, 13:36

General

  • Target

    acb4ff970a6f5a421f388d8db9ef27a5.exe

  • Size

    2.0MB

  • MD5

    acb4ff970a6f5a421f388d8db9ef27a5

  • SHA1

    d66686a615df8a8a6f8f36400c13fdc9f55dbb0c

  • SHA256

    cf2c71d279310105bce28d8ca6f90a42733da306d07e2c13acaa1cc90ff8b8be

  • SHA512

    2ab6226fc9ce4cea1376692377483642d5a9e83f0e2becf3ca5d81116b3bb8b62263a9c38521de9b79c4921718885a09070ef6e2d21ed2f2cb253a1e1f482bca

  • SSDEEP

    49152:32SwGJoA887GzJVZ3qTC4SdEdosi9psTJiP9Pe7D:m9A887cJn3oCnEmsisTYc

Malware Config

Extracted

Family

socks5systemz

C2

http://csixogn.net/search/?q=67e28dd83a5da32a155afd1b7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4ce8889b5e4fa9281ae978a271ea771795af8e05c645db22f31dfe339426fa11af66c152adb719a9577e55b8603e983a608ffe13c0ee959933

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\acb4ff970a6f5a421f388d8db9ef27a5.exe
    "C:\Users\Admin\AppData\Local\Temp\acb4ff970a6f5a421f388d8db9ef27a5.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4664
    • C:\Users\Admin\AppData\Local\Temp\is-MKSML.tmp\acb4ff970a6f5a421f388d8db9ef27a5.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-MKSML.tmp\acb4ff970a6f5a421f388d8db9ef27a5.tmp" /SL5="$90118,1756126,54272,C:\Users\Admin\AppData\Local\Temp\acb4ff970a6f5a421f388d8db9ef27a5.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:1936
      • C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe
        "C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe" -i
        3⤵
        • Executes dropped EXE
        PID:4764
      • C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe
        "C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe" -s
        3⤵
        • Executes dropped EXE
        PID:632
  • 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=1408 --field-trial-handle=2676,i,447940133669489189,1353734109898858672,262144 --variations-seed-version /prefetch:8
    1⤵
      PID:3880

    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

            c79648f3750d1cefcdb36833c743d263

            SHA1

            894203940c5346ae015be20e017dee9b409ddaf5

            SHA256

            89af231d1c627b6bede896ef3eb73d8bc48e4a9e37accb71b7f6723a3fe5953b

            SHA512

            052ca6068b18f2d7fcdedcfe01021ce480987c8bf09cda91abb719c9647314c276380563ab1b3fba9cf635499e17eed26c75b7c80bdd59f2ca2c7626c3dd9cf8

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

            Filesize

            2.0MB

            MD5

            064436208310d92774fdc1c152b26798

            SHA1

            d8c13aeecb696a746e71a8f093bce85fda7d196b

            SHA256

            ed83d964b1721cf94a05734d0e6137fa04f308376147eaf15f822dbb88f8bb99

            SHA512

            9307a4fca5a145b92e23403b0606399e4f37b3c112d80063bbe71f310b5e93399db5e36c937866ba2f9e941e3c7b9eaf54f7b3f68243546cacc1344269995e6b

          • C:\Users\Admin\AppData\Local\Temp\is-MKSML.tmp\acb4ff970a6f5a421f388d8db9ef27a5.tmp

            Filesize

            677KB

            MD5

            92f7775908bb12183914bb0753782913

            SHA1

            8d1091da36832942d48f2fe9a1a216fdd556b9c4

            SHA256

            a43c4e3916a92d299c22e2010383b2a8f85e14882a610de57bb2fef91f7984ed

            SHA512

            7e39cafdc00a46f2353f6eeaa8fee0d7c94f489d1fd4581e125408bae63a2e6cd135f65807c3574c833f970b64106badb7dd0a2a6ee9859b3b60b3d1b6e19c39

          • C:\Users\Admin\AppData\Local\Temp\is-QK7FT.tmp\_isetup\_iscrypt.dll

            Filesize

            2KB

            MD5

            a69559718ab506675e907fe49deb71e9

            SHA1

            bc8f404ffdb1960b50c12ff9413c893b56f2e36f

            SHA256

            2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

            SHA512

            e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

          • memory/632-74-0x0000000000400000-0x0000000000608000-memory.dmp

            Filesize

            2.0MB

          • memory/632-55-0x0000000000400000-0x0000000000608000-memory.dmp

            Filesize

            2.0MB

          • memory/632-95-0x0000000000400000-0x0000000000608000-memory.dmp

            Filesize

            2.0MB

          • memory/632-90-0x0000000000400000-0x0000000000608000-memory.dmp

            Filesize

            2.0MB

          • memory/632-87-0x0000000000400000-0x0000000000608000-memory.dmp

            Filesize

            2.0MB

          • memory/632-84-0x0000000000400000-0x0000000000608000-memory.dmp

            Filesize

            2.0MB

          • memory/632-82-0x0000000000400000-0x0000000000608000-memory.dmp

            Filesize

            2.0MB

          • memory/632-46-0x0000000000400000-0x0000000000608000-memory.dmp

            Filesize

            2.0MB

          • memory/632-80-0x0000000000890000-0x0000000000932000-memory.dmp

            Filesize

            648KB

          • memory/632-78-0x0000000000400000-0x0000000000608000-memory.dmp

            Filesize

            2.0MB

          • memory/632-50-0x0000000000400000-0x0000000000608000-memory.dmp

            Filesize

            2.0MB

          • memory/632-69-0x0000000000890000-0x0000000000932000-memory.dmp

            Filesize

            648KB

          • memory/632-54-0x0000000000400000-0x0000000000608000-memory.dmp

            Filesize

            2.0MB

          • memory/632-67-0x0000000000890000-0x0000000000932000-memory.dmp

            Filesize

            648KB

          • memory/632-58-0x0000000000400000-0x0000000000608000-memory.dmp

            Filesize

            2.0MB

          • memory/632-60-0x0000000000400000-0x0000000000608000-memory.dmp

            Filesize

            2.0MB

          • memory/632-63-0x0000000000400000-0x0000000000608000-memory.dmp

            Filesize

            2.0MB

          • memory/632-66-0x0000000000400000-0x0000000000608000-memory.dmp

            Filesize

            2.0MB

          • memory/1936-7-0x0000000002240000-0x0000000002241000-memory.dmp

            Filesize

            4KB

          • memory/1936-51-0x0000000002240000-0x0000000002241000-memory.dmp

            Filesize

            4KB

          • memory/1936-48-0x0000000000400000-0x00000000004B8000-memory.dmp

            Filesize

            736KB

          • memory/4664-0-0x0000000000400000-0x0000000000414000-memory.dmp

            Filesize

            80KB

          • memory/4664-47-0x0000000000400000-0x0000000000414000-memory.dmp

            Filesize

            80KB

          • memory/4664-2-0x0000000000400000-0x0000000000414000-memory.dmp

            Filesize

            80KB

          • memory/4764-43-0x0000000000400000-0x0000000000608000-memory.dmp

            Filesize

            2.0MB

          • memory/4764-41-0x0000000000400000-0x0000000000608000-memory.dmp

            Filesize

            2.0MB

          • memory/4764-39-0x0000000000400000-0x0000000000608000-memory.dmp

            Filesize

            2.0MB

          • memory/4764-38-0x0000000000400000-0x0000000000608000-memory.dmp

            Filesize

            2.0MB