Analysis

  • max time kernel
    143s
  • max time network
    128s
  • platform
    windows7_x64
  • resource
    win7-20231129-en
  • resource tags

    arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
  • submitted
    23/03/2024, 09:56

General

  • Target

    c0936b0b60581abf999cb8db58c887d6.exe

  • Size

    2.0MB

  • MD5

    c0936b0b60581abf999cb8db58c887d6

  • SHA1

    b6817af3e994b051935cfa2bdb7de674c5f7f949

  • SHA256

    b42c724af5c05849434bb0c34cabbd138201a7f6b6b56faadbc150885cfd0a2e

  • SHA512

    117d8f65c863db9c6514d17fff354a65c1faaee582fe630fb7713ae7f9cbc969013f0c17fe01fc763f0f42b3f090021fdca16672cde26a17038ba1b36584e094

  • SSDEEP

    49152:32mReh8xhZ4DirVux6pKP79FS+iZM95cALWatNiCtQUOK+oR98:mmQab4Dq84oR0+4MQGHcWQqHR6

Malware Config

Extracted

Family

socks5systemz

C2

http://aqidkkj.ru/search/?q=67e28dd8690cfb204406a51a7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa49e8889b5e4fa9281ae978fe71ea771795af8e05c642db22f31df92d8b38e316a667d307eca743ec4c2b07b52966923a668ff716c8ec95

http://aqidkkj.ru/search/?q=67e28dd8690cfb204406a51a7c27d78406abdd88be4b12eab517aa5c96bd86e993864d865a8bbc896c58e713bc90c91c36b5281fc235a925ed3e5dd6bd974a95129070b611e96cc92be20ea778c255bbe258b90d3b4eed3233d1626a8ff810c1ee9d9d33ce6f

Signatures

  • Detect Socks5Systemz Payload 5 IoCs
  • Socks5Systemz

    Socks5Systemz is a botnet written in C++.

  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 6 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 15 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\c0936b0b60581abf999cb8db58c887d6.exe
    "C:\Users\Admin\AppData\Local\Temp\c0936b0b60581abf999cb8db58c887d6.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:2964
    • C:\Users\Admin\AppData\Local\Temp\is-CIB3Q.tmp\c0936b0b60581abf999cb8db58c887d6.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-CIB3Q.tmp\c0936b0b60581abf999cb8db58c887d6.tmp" /SL5="$400BE,1722205,54272,C:\Users\Admin\AppData\Local\Temp\c0936b0b60581abf999cb8db58c887d6.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:2796
      • C:\Users\Admin\AppData\Local\MarkDownPad\markdownpad32.exe
        "C:\Users\Admin\AppData\Local\MarkDownPad\markdownpad32.exe" -i
        3⤵
        • Executes dropped EXE
        PID:2476
      • C:\Users\Admin\AppData\Local\MarkDownPad\markdownpad32.exe
        "C:\Users\Admin\AppData\Local\MarkDownPad\markdownpad32.exe" -s
        3⤵
        • Executes dropped EXE
        PID:2684

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\Users\Admin\AppData\Local\MarkDownPad\markdownpad32.exe

          Filesize

          738KB

          MD5

          009b09c86f901fa1705276c49249d906

          SHA1

          d8cfa8662955b8b7d8c81633bcd91404bf10a22f

          SHA256

          2bed1aa25ec5f8604f48955a35b21f0bb3f8e127dca0cb97cb3f033fa908d082

          SHA512

          e68079b54a8315c3facd772420623b53a02bca6d97088c42d09d6a17bf5d38f04adab495fbd4dd4cd0adc4c03324482b1737bdce64f305fe292c43bf392b0d85

        • C:\Users\Admin\AppData\Local\MarkDownPad\markdownpad32.exe

          Filesize

          1015KB

          MD5

          b82512e08af4e224f8070ef2375f6574

          SHA1

          16aec168ef2b1edbb1d7393286021b935c42d198

          SHA256

          727d6d844ca425fdb757afa8981b2072cf33e54ce93dbae4b18e8aea32e32da6

          SHA512

          cff0891732dd2293a3c51e0e99ddfc5acd41537b79d9976c161e05c0eb06b11c4c2bcb4fd53e0f990fe7d6d0caeaf5aad4ef1ee78c8404555babfb22d46258db

        • C:\Users\Admin\AppData\Local\MarkDownPad\markdownpad32.exe

          Filesize

          871KB

          MD5

          77dbafe47b5472c295dc84a2e7a31dd8

          SHA1

          d96ab39579dac8f3782c6cb9394fdd97ec75fea2

          SHA256

          a823f9d3cd2f9a17c1eb8c2c6ee7b7f24eb1aa3838f848f89e3788aaa3eae8fb

          SHA512

          10d8b7ddea89737ee9429bf2122ce74a7f4edf9d18c24b5c8fa812d10c304bef8bb720ec47aab9ee81aff60cde764ceac379404cfe6dfc247717654804265da4

        • \Users\Admin\AppData\Local\MarkDownPad\markdownpad32.exe

          Filesize

          772KB

          MD5

          00e752670fddb2f064ffb63876390d79

          SHA1

          d201f3a2635f81a66fe2b4db6edf718377bdcf0d

          SHA256

          8d0fd38a2385687433b78da680fcdecba5a49a00b68328aecb04a18b28ffad58

          SHA512

          1bd709568cb2e575f4574ebcf2ec40fc304a13ba0e6c33ef78daaf9dcfe35b218f1d873c7a2e6881aa142c42d7fc23d966b4a3c03e6b8d4df482214febee4d1d

        • \Users\Admin\AppData\Local\Temp\is-CIB3Q.tmp\c0936b0b60581abf999cb8db58c887d6.tmp

          Filesize

          677KB

          MD5

          88d7ea648defbc2597fa38ef83112eda

          SHA1

          2bce9acfb1b5e08dc29c695eff12fc80949c6440

          SHA256

          5a53b8bd78b1bbf24136b4d8d8191f503abcc24934626ed6f15bf9f6dee17b68

          SHA512

          050ce971e1f7a4e92d272c9c3c9f96f1214286523b018a75084c76dbebb5f32a717afbd9af9c68b7ad71f738c0a331640a8fe765cb4def90678eae4769b2e66a

        • \Users\Admin\AppData\Local\Temp\is-QSN7D.tmp\_isetup\_iscrypt.dll

          Filesize

          2KB

          MD5

          a69559718ab506675e907fe49deb71e9

          SHA1

          bc8f404ffdb1960b50c12ff9413c893b56f2e36f

          SHA256

          2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

          SHA512

          e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

        • \Users\Admin\AppData\Local\Temp\is-QSN7D.tmp\_isetup\_isdecmp.dll

          Filesize

          32KB

          MD5

          b6f11a0ab7715f570f45900a1fe84732

          SHA1

          77b1201e535445af5ea94c1b03c0a1c34d67a77b

          SHA256

          e47dd306a9854599f02bc1b07ca6dfbd5220f8a1352faa9616d1a327de0bbf67

          SHA512

          78a757e67d21eb7cc95954df15e3eeff56113d6b40fb73f0c5f53304265cc52c79125d6f1b3655b64f9a411711b5b70f746080d708d7c222f4e65bad64b1b771

        • \Users\Admin\AppData\Local\Temp\is-QSN7D.tmp\_isetup\_shfoldr.dll

          Filesize

          22KB

          MD5

          92dc6ef532fbb4a5c3201469a5b5eb63

          SHA1

          3e89ff837147c16b4e41c30d6c796374e0b8e62c

          SHA256

          9884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87

          SHA512

          9908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3

        • memory/2476-48-0x0000000000400000-0x00000000005D4000-memory.dmp

          Filesize

          1.8MB

        • memory/2476-52-0x0000000000400000-0x00000000005D4000-memory.dmp

          Filesize

          1.8MB

        • memory/2476-47-0x0000000000400000-0x00000000005D4000-memory.dmp

          Filesize

          1.8MB

        • memory/2476-51-0x0000000000400000-0x00000000005D4000-memory.dmp

          Filesize

          1.8MB

        • memory/2684-85-0x0000000000400000-0x00000000005D4000-memory.dmp

          Filesize

          1.8MB

        • memory/2684-95-0x0000000000400000-0x00000000005D4000-memory.dmp

          Filesize

          1.8MB

        • memory/2684-54-0x0000000000400000-0x00000000005D4000-memory.dmp

          Filesize

          1.8MB

        • memory/2684-110-0x0000000000400000-0x00000000005D4000-memory.dmp

          Filesize

          1.8MB

        • memory/2684-56-0x0000000000400000-0x00000000005D4000-memory.dmp

          Filesize

          1.8MB

        • memory/2684-107-0x0000000000400000-0x00000000005D4000-memory.dmp

          Filesize

          1.8MB

        • memory/2684-103-0x0000000002650000-0x00000000026F2000-memory.dmp

          Filesize

          648KB

        • memory/2684-59-0x0000000000400000-0x00000000005D4000-memory.dmp

          Filesize

          1.8MB

        • memory/2684-102-0x0000000002650000-0x00000000026F2000-memory.dmp

          Filesize

          648KB

        • memory/2684-101-0x0000000000400000-0x00000000005D4000-memory.dmp

          Filesize

          1.8MB

        • memory/2684-64-0x0000000000400000-0x00000000005D4000-memory.dmp

          Filesize

          1.8MB

        • memory/2684-65-0x0000000000400000-0x00000000005D4000-memory.dmp

          Filesize

          1.8MB

        • memory/2684-68-0x0000000000400000-0x00000000005D4000-memory.dmp

          Filesize

          1.8MB

        • memory/2684-71-0x0000000000400000-0x00000000005D4000-memory.dmp

          Filesize

          1.8MB

        • memory/2684-74-0x0000000000400000-0x00000000005D4000-memory.dmp

          Filesize

          1.8MB

        • memory/2684-77-0x0000000002650000-0x00000000026F2000-memory.dmp

          Filesize

          648KB

        • memory/2684-79-0x0000000000400000-0x00000000005D4000-memory.dmp

          Filesize

          1.8MB

        • memory/2684-80-0x0000000002650000-0x00000000026F2000-memory.dmp

          Filesize

          648KB

        • memory/2684-98-0x0000000000400000-0x00000000005D4000-memory.dmp

          Filesize

          1.8MB

        • memory/2684-88-0x0000000000400000-0x00000000005D4000-memory.dmp

          Filesize

          1.8MB

        • memory/2684-89-0x0000000002650000-0x00000000026F2000-memory.dmp

          Filesize

          648KB

        • memory/2684-92-0x0000000000400000-0x00000000005D4000-memory.dmp

          Filesize

          1.8MB

        • memory/2796-46-0x0000000003820000-0x00000000039F4000-memory.dmp

          Filesize

          1.8MB

        • memory/2796-61-0x0000000003820000-0x00000000039F4000-memory.dmp

          Filesize

          1.8MB

        • memory/2796-60-0x0000000000240000-0x0000000000241000-memory.dmp

          Filesize

          4KB

        • memory/2796-58-0x0000000000400000-0x00000000004B8000-memory.dmp

          Filesize

          736KB

        • memory/2796-9-0x0000000000240000-0x0000000000241000-memory.dmp

          Filesize

          4KB

        • memory/2964-1-0x0000000000400000-0x0000000000414000-memory.dmp

          Filesize

          80KB

        • memory/2964-57-0x0000000000400000-0x0000000000414000-memory.dmp

          Filesize

          80KB