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
    25/03/2024, 01:32

General

  • Target

    37e9181fda347881a9648496c62b1a970ce2055245db4d936cc8ddf1a20eef81.exe

  • Size

    2.0MB

  • MD5

    2f2b5ff3c33c62109f96e65c1d7601b0

  • SHA1

    aa8cfcbacc165b941199a9d56045933af952f995

  • SHA256

    37e9181fda347881a9648496c62b1a970ce2055245db4d936cc8ddf1a20eef81

  • SHA512

    ce770de242104f4f2fe702724f684ee59973cea11e257d997c18eb9f04487b0a6be9843c7b53070243cc2f1dee2a0e540cf1e379b6548cf40cab74a6fbc967ea

  • SSDEEP

    49152:32m/hFz6e3Bw45KMgwkYfyZYOgzynV0NWp6V/VtqkOVH:mobVwpooYQKcpGahH

Malware Config

Extracted

Family

socks5systemz

C2

http://bennzem.com/search/?q=67e28dd86a5cf47e155fff1a7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4de8889b5e4fa9281ae978ff71ea771795af8e05c642db22f31dfe339426fa11af66c152adb719a9577e55b8603e983a608ffe12c3ef91993f

http://bennzem.com/search/?q=67e28dd86a5cf47e155fff1a7c27d78406abdd88be4b12eab517aa5c96bd86ec928648885a8bbc896c58e713bc90c91836b5281fc235a925ed3e5cd6bd974a95129070b611e96cc92be510b866db52b2e34aec4c2b14a82966836f23d7f210c7ee949938cd6b9512

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\37e9181fda347881a9648496c62b1a970ce2055245db4d936cc8ddf1a20eef81.exe
    "C:\Users\Admin\AppData\Local\Temp\37e9181fda347881a9648496c62b1a970ce2055245db4d936cc8ddf1a20eef81.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:3828
    • C:\Users\Admin\AppData\Local\Temp\is-S1UGN.tmp\37e9181fda347881a9648496c62b1a970ce2055245db4d936cc8ddf1a20eef81.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-S1UGN.tmp\37e9181fda347881a9648496c62b1a970ce2055245db4d936cc8ddf1a20eef81.tmp" /SL5="$A006A,1752368,54272,C:\Users\Admin\AppData\Local\Temp\37e9181fda347881a9648496c62b1a970ce2055245db4d936cc8ddf1a20eef81.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:4248
      • C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe
        "C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe" -i
        3⤵
        • Executes dropped EXE
        PID:2236
      • C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe
        "C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe" -s
        3⤵
        • Executes dropped EXE
        PID:4932

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

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

          Filesize

          2.1MB

          MD5

          c963718dcfbf0c912a40a46bafcbe6f1

          SHA1

          8633310a8cc797a59a63d8fd54456893402296f8

          SHA256

          9cc03473e79df79135bfad64f51cc2ab03eeba069494045a91ddf0d2745345f6

          SHA512

          f9191caf21877ed861ad09019abf50c591ad5bcb2a478e4518e3e7aa64af73373d46c81e8829e80ac8be78be47d4ea83ff1e420e59297d1cff1718c37ca35c65

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

          Filesize

          1.7MB

          MD5

          18361dbf1e9dacc639413f34c35304aa

          SHA1

          77abee7ae8885acafab508e5f19a2b05af83d204

          SHA256

          6673634427712e06ad830196da3b55897ccab176fa94cb291ddbef2ed16d2434

          SHA512

          1d441744af9117aa59cdf7286998888701c8cb247d61f131df215be701b94c04a65543279d2b6cd755d93cd7303095a47c7bc020cd021047deb9ab9861b3628c

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

          Filesize

          1.3MB

          MD5

          6f78cfae7953d991f3790a830a8ac2e0

          SHA1

          e6e1ee1a646a3b14d9dc8cdaf81dec088ce32110

          SHA256

          1c91a62e86173770b5341b43a3833bdc9374a36c6711420744b9ee9fb7820cce

          SHA512

          0949cb742f74740758b6365062a2110eda02523ce496d2d5cf9badd330c190638c3f8a596f19b7f2fcd53f5870d5a9ee83fda60c4d41630ca08bb4d662fc2733

        • C:\Users\Admin\AppData\Local\Temp\is-69F3B.tmp\_isetup\_iscrypt.dll

          Filesize

          2KB

          MD5

          a69559718ab506675e907fe49deb71e9

          SHA1

          bc8f404ffdb1960b50c12ff9413c893b56f2e36f

          SHA256

          2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

          SHA512

          e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

        • C:\Users\Admin\AppData\Local\Temp\is-S1UGN.tmp\37e9181fda347881a9648496c62b1a970ce2055245db4d936cc8ddf1a20eef81.tmp

          Filesize

          677KB

          MD5

          d394fc26de69f06950dc1c71959b0261

          SHA1

          7c9448fc3582f19763eaa8e3c5383b7873aee017

          SHA256

          405e474735b776fc09dc71d3a5b44c50b9e2c745cdf7e79eb89dc791866ffe2a

          SHA512

          63ef7265aac27715f5b799b588955dd5df3f49ecd0042fba69d0effe7dfe24d6777079677a809e817e4e8243a2185ca9c3a8022c9247bb2a070c213f06d7bc10

        • memory/2236-38-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/2236-37-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/2236-41-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/2236-42-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/3828-0-0x0000000000400000-0x0000000000414000-memory.dmp

          Filesize

          80KB

        • memory/3828-46-0x0000000000400000-0x0000000000414000-memory.dmp

          Filesize

          80KB

        • memory/4248-49-0x0000000000660000-0x0000000000661000-memory.dmp

          Filesize

          4KB

        • memory/4248-6-0x0000000000660000-0x0000000000661000-memory.dmp

          Filesize

          4KB

        • memory/4248-47-0x0000000000400000-0x00000000004B8000-memory.dmp

          Filesize

          736KB

        • memory/4932-52-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/4932-76-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/4932-45-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/4932-53-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/4932-56-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/4932-59-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/4932-62-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/4932-65-0x0000000000870000-0x0000000000912000-memory.dmp

          Filesize

          648KB

        • memory/4932-66-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/4932-68-0x0000000000870000-0x0000000000912000-memory.dmp

          Filesize

          648KB

        • memory/4932-73-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/4932-48-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/4932-77-0x0000000000870000-0x0000000000912000-memory.dmp

          Filesize

          648KB

        • memory/4932-80-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/4932-83-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/4932-86-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/4932-89-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/4932-90-0x0000000000870000-0x0000000000912000-memory.dmp

          Filesize

          648KB

        • memory/4932-91-0x0000000000870000-0x0000000000912000-memory.dmp

          Filesize

          648KB

        • memory/4932-95-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/4932-98-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB