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Analysis

  • max time kernel
    142s
  • max time network
    145s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231222-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
  • submitted
    12/01/2024, 23:16

General

  • Target

    32e9ea89c598100f7702064c015b2a86ebcc2f3c6c76aba434a63d66a1ca2421.exe

  • Size

    6.7MB

  • MD5

    33df3b6b00f615cb50f55872c13e560a

  • SHA1

    3f4195532f28afd852078183ed4579973603bcc3

  • SHA256

    32e9ea89c598100f7702064c015b2a86ebcc2f3c6c76aba434a63d66a1ca2421

  • SHA512

    9d7c7c078fbd80cf1ce1b77654e72eb7213696deedc36ffd3fe34c2632d08b6673fb31545b172b012c13c5c47ac038b11b5470146b75c9d22243b4acb15618ec

  • SSDEEP

    196608:QO+EMw6dkrQWIe60lRyxPxa3ClQ0vBe3wjtX4dD:WEY/WIf0lRyxPxa3ClQeIiydD

Malware Config

Signatures

  • Detect Socks5Systemz Payload 5 IoCs
  • Socks5Systemz

    Socks5Systemz is a botnet written in C++.

  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 3 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.

  • Drops file in Program Files directory 59 IoCs
  • Runs net.exe
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of WriteProcessMemory 15 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\32e9ea89c598100f7702064c015b2a86ebcc2f3c6c76aba434a63d66a1ca2421.exe
    "C:\Users\Admin\AppData\Local\Temp\32e9ea89c598100f7702064c015b2a86ebcc2f3c6c76aba434a63d66a1ca2421.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4976
    • C:\Users\Admin\AppData\Local\Temp\is-UU3CI.tmp\32e9ea89c598100f7702064c015b2a86ebcc2f3c6c76aba434a63d66a1ca2421.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-UU3CI.tmp\32e9ea89c598100f7702064c015b2a86ebcc2f3c6c76aba434a63d66a1ca2421.tmp" /SL5="$401C6,6791384,328192,C:\Users\Admin\AppData\Local\Temp\32e9ea89c598100f7702064c015b2a86ebcc2f3c6c76aba434a63d66a1ca2421.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops file in Program Files directory
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:1980
      • C:\Windows\SysWOW64\net.exe
        "C:\Windows\system32\net.exe" helpmsg 24
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:2924
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 helpmsg 24
          4⤵
            PID:4636
        • C:\Program Files (x86)\DB Smart Refer\dbsmartref.exe
          "C:\Program Files (x86)\DB Smart Refer\dbsmartref.exe" -i
          3⤵
          • Executes dropped EXE
          PID:1640
        • C:\Program Files (x86)\DB Smart Refer\dbsmartref.exe
          "C:\Program Files (x86)\DB Smart Refer\dbsmartref.exe" -s
          3⤵
          • Executes dropped EXE
          PID:3220

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Program Files (x86)\DB Smart Refer\dbsmartref.exe

      Filesize

      1.7MB

      MD5

      1b2a9a209ca446f054b906bdea42a9aa

      SHA1

      2a4ad8316fa9319afdbc217c7f965b03d5fb132b

      SHA256

      fce2e932b3d6ade223c7395ed91731261759b021e43292e071af8635f3ac834b

      SHA512

      c669811981149416e8e1e463b3733d3ce8d5019dcb823f8880156291385c02f53c6e90bbcbd6359d5a79d8d8ae0d71e0d55e32ecd2563fb6ce614a5ae1b963c6

    • C:\Program Files (x86)\DB Smart Refer\dbsmartref.exe

      Filesize

      1.3MB

      MD5

      9b30fd2ed47615010724bf22998b9267

      SHA1

      fb26daf6d7e7a1910d5c419ebc90c66e7fb66272

      SHA256

      8350eb8b13b8edc728767f96e6cc4b47a91418a2c49be128ecba468d773d685e

      SHA512

      1edee24e260230d50ac0ce5ba68f7b067ad8db56a1fa07160b3d5037f4aad60f51a207bce77297c4ecd6ad5afccf04cc71313d95df5648fc5cde93a7dc05252e

    • C:\Users\Admin\AppData\Local\Temp\is-AP3NI.tmp\_isetup\_iscrypt.dll

      Filesize

      2KB

      MD5

      a69559718ab506675e907fe49deb71e9

      SHA1

      bc8f404ffdb1960b50c12ff9413c893b56f2e36f

      SHA256

      2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

      SHA512

      e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

    • C:\Users\Admin\AppData\Local\Temp\is-AP3NI.tmp\_isetup\_isdecmp.dll

      Filesize

      19KB

      MD5

      3adaa386b671c2df3bae5b39dc093008

      SHA1

      067cf95fbdb922d81db58432c46930f86d23dded

      SHA256

      71cd2f5bc6e13b8349a7c98697c6d2e3fcdeea92699cedd591875bea869fae38

      SHA512

      bbe4187758d1a69f75a8cca6b3184e0c20cf8701b16531b55ed4987497934b3c9ef66ecd5e6b83c7357f69734f1c8301b9f82f0a024bb693b732a2d5760fd303

    • C:\Users\Admin\AppData\Local\Temp\is-UU3CI.tmp\32e9ea89c598100f7702064c015b2a86ebcc2f3c6c76aba434a63d66a1ca2421.tmp

      Filesize

      688KB

      MD5

      a7662827ecaeb4fc68334f6b8791b917

      SHA1

      f93151dd228d680aa2910280e51f0a84d0cad105

      SHA256

      05f159722d6905719d2d6f340981a293f40ab8a0d2d4a282c948066809d4af6d

      SHA512

      e9880b3f3ec9201e59114850e9c570d0ad6d3b0e04c60929a03cf983c62c505fcb6bb9dc3adeee88c78d43bd484159626b4a2f000a34b8883164c263f21e6f4a

    • memory/1640-142-0x0000000000400000-0x00000000005BB000-memory.dmp

      Filesize

      1.7MB

    • memory/1640-141-0x0000000000400000-0x00000000005BB000-memory.dmp

      Filesize

      1.7MB

    • memory/1640-146-0x0000000000400000-0x00000000005BB000-memory.dmp

      Filesize

      1.7MB

    • memory/1640-145-0x0000000000400000-0x00000000005BB000-memory.dmp

      Filesize

      1.7MB

    • memory/1980-153-0x0000000002210000-0x0000000002211000-memory.dmp

      Filesize

      4KB

    • memory/1980-7-0x0000000002210000-0x0000000002211000-memory.dmp

      Filesize

      4KB

    • memory/1980-151-0x0000000000400000-0x00000000004BC000-memory.dmp

      Filesize

      752KB

    • memory/3220-157-0x0000000000400000-0x00000000005BB000-memory.dmp

      Filesize

      1.7MB

    • memory/3220-183-0x0000000000400000-0x00000000005BB000-memory.dmp

      Filesize

      1.7MB

    • memory/3220-149-0x0000000000400000-0x00000000005BB000-memory.dmp

      Filesize

      1.7MB

    • memory/3220-152-0x0000000000400000-0x00000000005BB000-memory.dmp

      Filesize

      1.7MB

    • memory/3220-201-0x0000000000400000-0x00000000005BB000-memory.dmp

      Filesize

      1.7MB

    • memory/3220-156-0x0000000000400000-0x00000000005BB000-memory.dmp

      Filesize

      1.7MB

    • memory/3220-198-0x0000000000400000-0x00000000005BB000-memory.dmp

      Filesize

      1.7MB

    • memory/3220-160-0x0000000000400000-0x00000000005BB000-memory.dmp

      Filesize

      1.7MB

    • memory/3220-163-0x0000000000400000-0x00000000005BB000-memory.dmp

      Filesize

      1.7MB

    • memory/3220-166-0x0000000000400000-0x00000000005BB000-memory.dmp

      Filesize

      1.7MB

    • memory/3220-169-0x0000000000880000-0x0000000000922000-memory.dmp

      Filesize

      648KB

    • memory/3220-173-0x0000000000880000-0x0000000000922000-memory.dmp

      Filesize

      648KB

    • memory/3220-170-0x0000000000400000-0x00000000005BB000-memory.dmp

      Filesize

      1.7MB

    • memory/3220-176-0x0000000000400000-0x00000000005BB000-memory.dmp

      Filesize

      1.7MB

    • memory/3220-179-0x0000000000400000-0x00000000005BB000-memory.dmp

      Filesize

      1.7MB

    • memory/3220-180-0x0000000000880000-0x0000000000922000-memory.dmp

      Filesize

      648KB

    • memory/3220-194-0x0000000000400000-0x00000000005BB000-memory.dmp

      Filesize

      1.7MB

    • memory/3220-186-0x0000000000400000-0x00000000005BB000-memory.dmp

      Filesize

      1.7MB

    • memory/3220-189-0x0000000000400000-0x00000000005BB000-memory.dmp

      Filesize

      1.7MB

    • memory/3220-192-0x0000000000880000-0x0000000000922000-memory.dmp

      Filesize

      648KB

    • memory/3220-193-0x0000000000880000-0x0000000000922000-memory.dmp

      Filesize

      648KB

    • memory/4976-150-0x0000000000400000-0x0000000000457000-memory.dmp

      Filesize

      348KB

    • memory/4976-0-0x0000000000400000-0x0000000000457000-memory.dmp

      Filesize

      348KB

    • memory/4976-2-0x0000000000400000-0x0000000000457000-memory.dmp

      Filesize

      348KB