Analysis

  • max time kernel
    152s
  • max time network
    158s
  • 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, 02:21

General

  • Target

    19f878573535fd072225a06e5fc283bc9925a79df1b795c25d6a01605966b4c5.exe

  • Size

    2.2MB

  • MD5

    72c9c78af1bcef44f131becb89ca8388

  • SHA1

    9872f5fb908841d9fa25c38adb995bfcd392149b

  • SHA256

    19f878573535fd072225a06e5fc283bc9925a79df1b795c25d6a01605966b4c5

  • SHA512

    4e1c01064dbaad273b481382a8e26686a6da26f67926f0952deb25a0eca0e1275bab38b97bf7bcc484cdbf3f0141dd0612d8a2c72c21062af92c34f06dd38db0

  • SSDEEP

    49152:324u9cVTBk4TTJnFFwcDPM1lvmUG6jmnyienM7svXncfe0fKdqSRehM:m4umV6QTJnFTY102jmyfM7sv+e0AqS0a

Malware Config

Extracted

Family

socks5systemz

C2

http://buicniz.com/search/?q=67e28dd86e58a42e450ca94d7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4ee8889b5e4fa9281ae978f671ea771795af8e05c645db22f31dfe339426fa11af66c152adb719a9577e55b8603e983a608ffe12c3ec969e33

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\19f878573535fd072225a06e5fc283bc9925a79df1b795c25d6a01605966b4c5.exe
    "C:\Users\Admin\AppData\Local\Temp\19f878573535fd072225a06e5fc283bc9925a79df1b795c25d6a01605966b4c5.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1116
    • C:\Users\Admin\AppData\Local\Temp\is-SNF0I.tmp\19f878573535fd072225a06e5fc283bc9925a79df1b795c25d6a01605966b4c5.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-SNF0I.tmp\19f878573535fd072225a06e5fc283bc9925a79df1b795c25d6a01605966b4c5.tmp" /SL5="$A00FE,1976235,54272,C:\Users\Admin\AppData\Local\Temp\19f878573535fd072225a06e5fc283bc9925a79df1b795c25d6a01605966b4c5.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:4616
      • C:\Users\Admin\AppData\Local\Color Picker\colorpicker32.exe
        "C:\Users\Admin\AppData\Local\Color Picker\colorpicker32.exe" -i
        3⤵
        • Executes dropped EXE
        PID:3916
      • C:\Users\Admin\AppData\Local\Color Picker\colorpicker32.exe
        "C:\Users\Admin\AppData\Local\Color Picker\colorpicker32.exe" -s
        3⤵
        • Executes dropped EXE
        PID:4676

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

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

          Filesize

          2.2MB

          MD5

          5341bef1154cf2ed5c513f8d177a22c9

          SHA1

          50d15e352c6250052f4ffeb0a8f7fbc94db561bd

          SHA256

          b1c2c86bed3561898e324f14e41714cfe0780619fed3385dee5416a3c26c7ef7

          SHA512

          ad30160c1784fbd20d6446daed90e2f41925a8984e33f6151e8a3085154361d62e6adc28ed31fa60f65a6d120d63633ec9700ff22c23fa301ede6b8f293542fc

        • C:\Users\Admin\AppData\Local\Temp\is-577IO.tmp\_isetup\_iscrypt.dll

          Filesize

          2KB

          MD5

          a69559718ab506675e907fe49deb71e9

          SHA1

          bc8f404ffdb1960b50c12ff9413c893b56f2e36f

          SHA256

          2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

          SHA512

          e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

        • C:\Users\Admin\AppData\Local\Temp\is-SNF0I.tmp\19f878573535fd072225a06e5fc283bc9925a79df1b795c25d6a01605966b4c5.tmp

          Filesize

          224KB

          MD5

          5abdf5db157863e14217abd98379a288

          SHA1

          d3981c466733e2272f7769c39577c387852aab9c

          SHA256

          c820a3ebe9b2f8597c2a0eb301eaa4d7645ed72a69a4fb48704784ef33092561

          SHA512

          6c328a366fce1d629c6c9d542454f6e6531da60e60343d379500e67b7f400415364a156e41ed99da68b49ad25324389667a3a0f284d44adc98dc8c9339eadf46

        • C:\Users\Admin\AppData\Local\Temp\is-SNF0I.tmp\19f878573535fd072225a06e5fc283bc9925a79df1b795c25d6a01605966b4c5.tmp

          Filesize

          57KB

          MD5

          a41ff3c5251cdd81ea418a18636988b7

          SHA1

          2f45e5ef9eb935b8660b65234d3821f0e2759d43

          SHA256

          de05ffcef542c6cb39362ce0ec4797268cab520d5e42c32ff650f607224f629f

          SHA512

          e265eb15a19e31fc7d4c13a1041cdcd02b547b299b022456f61fbfdd02237cc52f0aedb9a35f8957f1b4d65c8d34869458a35cb329396d0c40036e7109509234

        • memory/1116-0-0x0000000000400000-0x0000000000414000-memory.dmp

          Filesize

          80KB

        • memory/1116-46-0x0000000000400000-0x0000000000414000-memory.dmp

          Filesize

          80KB

        • memory/3916-42-0x0000000000400000-0x0000000000640000-memory.dmp

          Filesize

          2.2MB

        • memory/3916-38-0x0000000000400000-0x0000000000640000-memory.dmp

          Filesize

          2.2MB

        • memory/3916-39-0x0000000000400000-0x0000000000640000-memory.dmp

          Filesize

          2.2MB

        • memory/3916-37-0x0000000000400000-0x0000000000640000-memory.dmp

          Filesize

          2.2MB

        • memory/4616-49-0x0000000002240000-0x0000000002241000-memory.dmp

          Filesize

          4KB

        • memory/4616-6-0x0000000002240000-0x0000000002241000-memory.dmp

          Filesize

          4KB

        • memory/4616-47-0x0000000000400000-0x00000000004B8000-memory.dmp

          Filesize

          736KB

        • memory/4676-53-0x0000000000400000-0x0000000000640000-memory.dmp

          Filesize

          2.2MB

        • memory/4676-68-0x0000000000920000-0x00000000009C2000-memory.dmp

          Filesize

          648KB

        • memory/4676-52-0x0000000000400000-0x0000000000640000-memory.dmp

          Filesize

          2.2MB

        • memory/4676-45-0x0000000000400000-0x0000000000640000-memory.dmp

          Filesize

          2.2MB

        • memory/4676-56-0x0000000000400000-0x0000000000640000-memory.dmp

          Filesize

          2.2MB

        • memory/4676-59-0x0000000000400000-0x0000000000640000-memory.dmp

          Filesize

          2.2MB

        • memory/4676-62-0x0000000000400000-0x0000000000640000-memory.dmp

          Filesize

          2.2MB

        • memory/4676-65-0x0000000000400000-0x0000000000640000-memory.dmp

          Filesize

          2.2MB

        • memory/4676-66-0x0000000000920000-0x00000000009C2000-memory.dmp

          Filesize

          648KB

        • memory/4676-48-0x0000000000400000-0x0000000000640000-memory.dmp

          Filesize

          2.2MB

        • memory/4676-73-0x0000000000400000-0x0000000000640000-memory.dmp

          Filesize

          2.2MB

        • memory/4676-76-0x0000000000400000-0x0000000000640000-memory.dmp

          Filesize

          2.2MB

        • memory/4676-77-0x0000000000920000-0x00000000009C2000-memory.dmp

          Filesize

          648KB

        • memory/4676-80-0x0000000000400000-0x0000000000640000-memory.dmp

          Filesize

          2.2MB

        • memory/4676-83-0x0000000000400000-0x0000000000640000-memory.dmp

          Filesize

          2.2MB

        • memory/4676-86-0x0000000000400000-0x0000000000640000-memory.dmp

          Filesize

          2.2MB

        • memory/4676-89-0x0000000000400000-0x0000000000640000-memory.dmp

          Filesize

          2.2MB

        • memory/4676-93-0x0000000000400000-0x0000000000640000-memory.dmp

          Filesize

          2.2MB

        • memory/4676-96-0x0000000000400000-0x0000000000640000-memory.dmp

          Filesize

          2.2MB