Analysis

  • max time kernel
    148s
  • 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
    25/03/2024, 02:18

General

  • Target

    9f03088fe6d06a375fcfeefb08d11cedf5b8865ddd29ec5e593309555c55d0e8.exe

  • Size

    2.2MB

  • MD5

    f3f25d297e62930f87471d53806c9a40

  • SHA1

    595ed64b276faac81f0a2d6380f64295b0674119

  • SHA256

    9f03088fe6d06a375fcfeefb08d11cedf5b8865ddd29ec5e593309555c55d0e8

  • SHA512

    c464f0880e7cac9a6efe7cf010a8660402d9f1921112d386f491a93de8c7cbf49961490315951604a5c0f2f548be1faf87cd00c111e70dc86f291350b10d006e

  • SSDEEP

    49152:32JVLn+sUNYgQEu8SQ1MaoHd82o4vEoO9iws+SmL967+NHz1PncM:mJV7+srQuak1vEoFwzL9++N5PncM

Malware Config

Extracted

Family

socks5systemz

C2

http://aajcrin.ru/search/?q=67e28dd83a5da32a155afd1b7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4ce8889b5e4fa9281ae978a271ea771795af8e05c642db22f31dfe339426fa11af66c152adb719a9577e55b8603e983a608ffe12c3ec949c3f

http://aajcrin.ru/search/?q=67e28dd83a5da32a155afd1b7c27d78406abdd88be4b12eab517aa5c96bd86ee96854f855a8bbc896c58e713bc90c91936b5281fc235a925ed3e01d6bd974a95129070b611e96cc92be510b866db52b2e34aec4c2b14a82966836f23d7f210c7ee949938ce6e9012

Signatures

  • Detect Socks5Systemz Payload 4 IoCs
  • Socks5Systemz

    Socks5Systemz is a botnet written in C++.

  • Detects executables packed with VMProtect. 18 IoCs
  • 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\9f03088fe6d06a375fcfeefb08d11cedf5b8865ddd29ec5e593309555c55d0e8.exe
    "C:\Users\Admin\AppData\Local\Temp\9f03088fe6d06a375fcfeefb08d11cedf5b8865ddd29ec5e593309555c55d0e8.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1544
    • C:\Users\Admin\AppData\Local\Temp\is-8VCPL.tmp\9f03088fe6d06a375fcfeefb08d11cedf5b8865ddd29ec5e593309555c55d0e8.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-8VCPL.tmp\9f03088fe6d06a375fcfeefb08d11cedf5b8865ddd29ec5e593309555c55d0e8.tmp" /SL5="$8019A,1914285,54272,C:\Users\Admin\AppData\Local\Temp\9f03088fe6d06a375fcfeefb08d11cedf5b8865ddd29ec5e593309555c55d0e8.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:4352
      • C:\Users\Admin\AppData\Local\Color Picker\colorpicker32.exe
        "C:\Users\Admin\AppData\Local\Color Picker\colorpicker32.exe" -i
        3⤵
        • Executes dropped EXE
        PID:3052
      • C:\Users\Admin\AppData\Local\Color Picker\colorpicker32.exe
        "C:\Users\Admin\AppData\Local\Color Picker\colorpicker32.exe" -s
        3⤵
        • Executes dropped EXE
        PID:560
  • 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=1316 --field-trial-handle=2284,i,9807419199535700662,2319175108930815708,262144 --variations-seed-version /prefetch:8
    1⤵
      PID:4744

    Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Users\Admin\AppData\Local\Color Picker\colorpicker32.exe

            Filesize

            2.0MB

            MD5

            0d391b8d340004ef613dad7b3cc84c72

            SHA1

            1f9a26545da8bd822212f1c6103fe6078774b797

            SHA256

            2793d86551c3ff51d8c5a950f7b713f85fb4683df2e937f1d20125d18af8bcbc

            SHA512

            f6bc44f8d336b6d41febe50a09cc3de62e7c42ea7b0a74494cabcb8e39348da9f9b7a767de0ce5ee491af86a12d40868b326b32b1ad4bee8769e4a12a1ecb057

          • C:\Users\Admin\AppData\Local\Color Picker\colorpicker32.exe

            Filesize

            685KB

            MD5

            f95a50928cd3e6db37802e565217745a

            SHA1

            5c860f6319fbf116e222af54569a36a4812c96dd

            SHA256

            d5bfabc777d7bd82f27cff52aab9aa1c1494ab598ba086f5147872afcde76e4c

            SHA512

            40f7fd8238d9cdbb36d8cea4279eec66ef2d6e8157b336818abfa8aa7235cddca4457106a8a8974645365f666f280a6c23a19dec2c710f5713765ac2e812d0d8

          • C:\Users\Admin\AppData\Local\Color Picker\colorpicker32.exe

            Filesize

            457KB

            MD5

            63a1512e6455d25ff13206ff740014a7

            SHA1

            87961958344219d28379b0c027b165109742ee92

            SHA256

            8972b3d5f4f324f2b9b94a46aafe82f82d7cf924d586dfa4cadd6f1d09357399

            SHA512

            e5e8f328d3835ca89e46f0ed5ae99f3c8c372a9e220c78dfc67fa6579c2694e0314e50078a186dafe930a9a3908eb608d5caf40eab8e2c081b2aed87e93ab70d

          • C:\Users\Admin\AppData\Local\Temp\is-8VCPL.tmp\9f03088fe6d06a375fcfeefb08d11cedf5b8865ddd29ec5e593309555c55d0e8.tmp

            Filesize

            677KB

            MD5

            bb16a1aed23a42be299fa83942dc45cc

            SHA1

            eef3b71f03f3ea6148a08bf4ba6d3bc2239a56ba

            SHA256

            2fbf5d1a94ff7aa773d0abe9e2216f0347f47083bf66632e516b9e59ede819df

            SHA512

            bd1c5cf999c8824946906a6242309b41e6bcc926733107e87787ecb70c4e4d78ae395fcc9033606a72f08fee98103957063b3a47cd74e9e395d77c75287fd0b4

          • C:\Users\Admin\AppData\Local\Temp\is-PRD6A.tmp\_isetup\_iscrypt.dll

            Filesize

            2KB

            MD5

            a69559718ab506675e907fe49deb71e9

            SHA1

            bc8f404ffdb1960b50c12ff9413c893b56f2e36f

            SHA256

            2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

            SHA512

            e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

          • memory/560-67-0x0000000000400000-0x000000000063A000-memory.dmp

            Filesize

            2.2MB

          • memory/560-87-0x0000000000400000-0x000000000063A000-memory.dmp

            Filesize

            2.2MB

          • memory/560-92-0x00000000008C0000-0x0000000000962000-memory.dmp

            Filesize

            648KB

          • memory/560-78-0x00000000008C0000-0x0000000000962000-memory.dmp

            Filesize

            648KB

          • memory/560-91-0x00000000008C0000-0x0000000000962000-memory.dmp

            Filesize

            648KB

          • memory/560-77-0x0000000000400000-0x000000000063A000-memory.dmp

            Filesize

            2.2MB

          • memory/560-90-0x0000000000400000-0x000000000063A000-memory.dmp

            Filesize

            2.2MB

          • memory/560-81-0x0000000000400000-0x000000000063A000-memory.dmp

            Filesize

            2.2MB

          • memory/560-47-0x0000000000400000-0x000000000063A000-memory.dmp

            Filesize

            2.2MB

          • memory/560-54-0x0000000000400000-0x000000000063A000-memory.dmp

            Filesize

            2.2MB

          • memory/560-74-0x0000000000400000-0x000000000063A000-memory.dmp

            Filesize

            2.2MB

          • memory/560-84-0x0000000000400000-0x000000000063A000-memory.dmp

            Filesize

            2.2MB

          • memory/560-96-0x0000000000400000-0x000000000063A000-memory.dmp

            Filesize

            2.2MB

          • memory/560-55-0x0000000000400000-0x000000000063A000-memory.dmp

            Filesize

            2.2MB

          • memory/560-58-0x0000000000400000-0x000000000063A000-memory.dmp

            Filesize

            2.2MB

          • memory/560-61-0x0000000000400000-0x000000000063A000-memory.dmp

            Filesize

            2.2MB

          • memory/560-64-0x0000000000400000-0x000000000063A000-memory.dmp

            Filesize

            2.2MB

          • memory/560-68-0x00000000008C0000-0x0000000000962000-memory.dmp

            Filesize

            648KB

          • memory/560-50-0x0000000000400000-0x000000000063A000-memory.dmp

            Filesize

            2.2MB

          • memory/1544-17-0x0000000000400000-0x0000000000414000-memory.dmp

            Filesize

            80KB

          • memory/1544-2-0x0000000000400000-0x0000000000414000-memory.dmp

            Filesize

            80KB

          • memory/1544-0-0x0000000000400000-0x0000000000414000-memory.dmp

            Filesize

            80KB

          • memory/3052-40-0x0000000000400000-0x000000000063A000-memory.dmp

            Filesize

            2.2MB

          • memory/3052-44-0x0000000000400000-0x000000000063A000-memory.dmp

            Filesize

            2.2MB

          • memory/3052-42-0x0000000000400000-0x000000000063A000-memory.dmp

            Filesize

            2.2MB

          • memory/3052-39-0x0000000000400000-0x000000000063A000-memory.dmp

            Filesize

            2.2MB

          • memory/4352-51-0x0000000002100000-0x0000000002101000-memory.dmp

            Filesize

            4KB

          • memory/4352-48-0x0000000000400000-0x00000000004B8000-memory.dmp

            Filesize

            736KB

          • memory/4352-7-0x0000000002100000-0x0000000002101000-memory.dmp

            Filesize

            4KB