Analysis

  • max time kernel
    141s
  • max time network
    137s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    18-11-2024 09:34

General

  • Target

    30414f3ba4fafbda6f458ec830b5c1ac40e39d983c973c20ef4c7c6646dcbb86.exe

  • Size

    5.8MB

  • MD5

    ce7f0436845a009c7b28c14eeb9e73cf

  • SHA1

    faba9be3e2b54d07ed5edd40dbba2697871def71

  • SHA256

    30414f3ba4fafbda6f458ec830b5c1ac40e39d983c973c20ef4c7c6646dcbb86

  • SHA512

    dd73bcda2d8cb37198224451eee707d8ae073fc274cd6ecea85e2ab8d2a2c9a50c3413d140c3479177491eeb5c8c894087bd1308ddd9f7d513298bb1232d3390

  • SSDEEP

    98304:Np0dW+wqU16daombR3fujifiFc5put6gJ+AdmOfD+Nmos0NtXnMBtM0P6zLM/dmp:z0D5U1OaowvueeO7gqx5nMB1P6zw/S

Malware Config

Signatures

  • Detect Socks5Systemz Payload 3 IoCs
  • Socks5Systemz

    Socks5Systemz is a botnet written in C++.

  • Socks5systemz family
  • Executes dropped EXE 2 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.

  • System Location Discovery: System Language Discovery 1 TTPs 5 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Runs net.exe
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of WriteProcessMemory 19 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\30414f3ba4fafbda6f458ec830b5c1ac40e39d983c973c20ef4c7c6646dcbb86.exe
    "C:\Users\Admin\AppData\Local\Temp\30414f3ba4fafbda6f458ec830b5c1ac40e39d983c973c20ef4c7c6646dcbb86.exe"
    1⤵
    • Loads dropped DLL
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3056
    • C:\Users\Admin\AppData\Local\Temp\is-5C9FB.tmp\30414f3ba4fafbda6f458ec830b5c1ac40e39d983c973c20ef4c7c6646dcbb86.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-5C9FB.tmp\30414f3ba4fafbda6f458ec830b5c1ac40e39d983c973c20ef4c7c6646dcbb86.tmp" /SL5="$30148,5831467,54272,C:\Users\Admin\AppData\Local\Temp\30414f3ba4fafbda6f458ec830b5c1ac40e39d983c973c20ef4c7c6646dcbb86.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:1736
      • C:\Windows\SysWOW64\net.exe
        "C:\Windows\system32\net.exe" pause screenstudio_11174
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:2768
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 pause screenstudio_11174
          4⤵
          • System Location Discovery: System Language Discovery
          PID:316
      • C:\Users\Admin\AppData\Local\Screen Studio 1.42\screenstudio3.exe
        "C:\Users\Admin\AppData\Local\Screen Studio 1.42\screenstudio3.exe" -i
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:2832

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Screen Studio 1.42\sqlite3.dll

    Filesize

    630KB

    MD5

    e477a96c8f2b18d6b5c27bde49c990bf

    SHA1

    e980c9bf41330d1e5bd04556db4646a0210f7409

    SHA256

    16574f51785b0e2fc29c2c61477eb47bb39f714829999511dc8952b43ab17660

    SHA512

    335a86268e7c0e568b1c30981ec644e6cd332e66f96d2551b58a82515316693c1859d87b4f4b7310cf1ac386cee671580fdd999c3bcb23acf2c2282c01c8798c

  • \Users\Admin\AppData\Local\Screen Studio 1.42\screenstudio3.exe

    Filesize

    6.6MB

    MD5

    7d1817f13fd6e939c998b7d10dd724d0

    SHA1

    760ebf1de1832aceadfdd4ec7bad20f249bf6a99

    SHA256

    192ccc3a7e595394cea23a02ee4666298d7b6da3e4af433aa8ddc9b35b7afae1

    SHA512

    eb967f28e9ec38b1879065d632edbb708aea24c5918f9cfd899f8e5fc8b75d22055c8654c2908a3f51048256b83eb8d726f97633ca53527395fcd3d553ff0cc7

  • \Users\Admin\AppData\Local\Temp\is-155MB.tmp\_isetup\_iscrypt.dll

    Filesize

    2KB

    MD5

    a69559718ab506675e907fe49deb71e9

    SHA1

    bc8f404ffdb1960b50c12ff9413c893b56f2e36f

    SHA256

    2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

    SHA512

    e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

  • \Users\Admin\AppData\Local\Temp\is-155MB.tmp\_isetup\_shfoldr.dll

    Filesize

    22KB

    MD5

    92dc6ef532fbb4a5c3201469a5b5eb63

    SHA1

    3e89ff837147c16b4e41c30d6c796374e0b8e62c

    SHA256

    9884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87

    SHA512

    9908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3

  • \Users\Admin\AppData\Local\Temp\is-5C9FB.tmp\30414f3ba4fafbda6f458ec830b5c1ac40e39d983c973c20ef4c7c6646dcbb86.tmp

    Filesize

    692KB

    MD5

    4d3a2bb8d7a7dfcfeee20f95757d29e4

    SHA1

    4ca66ee00b950e6c45c09263b0e451039c572e96

    SHA256

    88f7d0bc0c2cea9ac3ad806480310c9deae405ba505f6a19f9591115b6cbc57d

    SHA512

    920d30524b4e1bf7cb3556a578459be4e9122e8c8716e34310fd70ae1deded50bad8bf7a03a46db46557b2e5500a523511a0bb9ddacf2dd966016e98a7cc6e74

  • memory/1736-81-0x00000000035A0000-0x0000000003C41000-memory.dmp

    Filesize

    6.6MB

  • memory/1736-11-0x0000000000400000-0x00000000004BD000-memory.dmp

    Filesize

    756KB

  • memory/1736-69-0x00000000035A0000-0x0000000003C41000-memory.dmp

    Filesize

    6.6MB

  • memory/1736-78-0x0000000000400000-0x00000000004BD000-memory.dmp

    Filesize

    756KB

  • memory/2832-86-0x0000000000400000-0x0000000000AA1000-memory.dmp

    Filesize

    6.6MB

  • memory/2832-102-0x0000000000400000-0x0000000000AA1000-memory.dmp

    Filesize

    6.6MB

  • memory/2832-72-0x0000000000400000-0x0000000000AA1000-memory.dmp

    Filesize

    6.6MB

  • memory/2832-141-0x0000000000400000-0x0000000000AA1000-memory.dmp

    Filesize

    6.6MB

  • memory/2832-137-0x0000000000400000-0x0000000000AA1000-memory.dmp

    Filesize

    6.6MB

  • memory/2832-82-0x0000000000400000-0x0000000000AA1000-memory.dmp

    Filesize

    6.6MB

  • memory/2832-83-0x0000000060900000-0x0000000060992000-memory.dmp

    Filesize

    584KB

  • memory/2832-133-0x00000000033F0000-0x0000000003492000-memory.dmp

    Filesize

    648KB

  • memory/2832-90-0x0000000000400000-0x0000000000AA1000-memory.dmp

    Filesize

    6.6MB

  • memory/2832-94-0x0000000000400000-0x0000000000AA1000-memory.dmp

    Filesize

    6.6MB

  • memory/2832-98-0x0000000000400000-0x0000000000AA1000-memory.dmp

    Filesize

    6.6MB

  • memory/2832-74-0x0000000000400000-0x0000000000AA1000-memory.dmp

    Filesize

    6.6MB

  • memory/2832-104-0x00000000033F0000-0x0000000003492000-memory.dmp

    Filesize

    648KB

  • memory/2832-110-0x0000000000400000-0x0000000000AA1000-memory.dmp

    Filesize

    6.6MB

  • memory/2832-114-0x0000000000400000-0x0000000000AA1000-memory.dmp

    Filesize

    6.6MB

  • memory/2832-118-0x0000000000400000-0x0000000000AA1000-memory.dmp

    Filesize

    6.6MB

  • memory/2832-122-0x0000000000400000-0x0000000000AA1000-memory.dmp

    Filesize

    6.6MB

  • memory/2832-126-0x0000000000400000-0x0000000000AA1000-memory.dmp

    Filesize

    6.6MB

  • memory/2832-130-0x0000000000400000-0x0000000000AA1000-memory.dmp

    Filesize

    6.6MB

  • memory/2832-132-0x00000000033F0000-0x0000000003492000-memory.dmp

    Filesize

    648KB

  • memory/3056-0-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/3056-3-0x0000000000401000-0x000000000040B000-memory.dmp

    Filesize

    40KB

  • memory/3056-79-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB