Analysis

  • max time kernel
    148s
  • max time network
    135s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    05-11-2024 08:13

General

  • Target

    ed611c779d12296672586caad7f05cd9ca76c2d3eb651f6d9b6af212bd42015a.exe

  • Size

    5.0MB

  • MD5

    31aa0ef7b2ddd5ce943be97005b73855

  • SHA1

    5adac9878e42c14a7c90d5446bd003f644fc56eb

  • SHA256

    ed611c779d12296672586caad7f05cd9ca76c2d3eb651f6d9b6af212bd42015a

  • SHA512

    e5fc662e1e94e3824b868055c08fcafcd5b52405d680d9d555b6dfb21e72698eee1981b3e09dd74f921f9e8aacb0fa445b7a5e0245da987b6ac5f27e7c70461c

  • SSDEEP

    98304:eXqT6NmCMlTVw+Ak7EE3YbEJp6s7XPO9xXd32wlo1:QrMlZXp/z6s7XPsXdJo1

Malware Config

Signatures

  • Detect Socks5Systemz Payload 1 IoCs
  • Socks5Systemz

    Socks5Systemz is a botnet written in C++.

  • Socks5systemz family
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 5 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).

  • 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 use of WriteProcessMemory 19 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\ed611c779d12296672586caad7f05cd9ca76c2d3eb651f6d9b6af212bd42015a.exe
    "C:\Users\Admin\AppData\Local\Temp\ed611c779d12296672586caad7f05cd9ca76c2d3eb651f6d9b6af212bd42015a.exe"
    1⤵
    • Loads dropped DLL
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1964
    • C:\Users\Admin\AppData\Local\Temp\is-RGKQH.tmp\ed611c779d12296672586caad7f05cd9ca76c2d3eb651f6d9b6af212bd42015a.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-RGKQH.tmp\ed611c779d12296672586caad7f05cd9ca76c2d3eb651f6d9b6af212bd42015a.tmp" /SL5="$50150,5037318,54272,C:\Users\Admin\AppData\Local\Temp\ed611c779d12296672586caad7f05cd9ca76c2d3eb651f6d9b6af212bd42015a.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2328
      • C:\Windows\SysWOW64\net.exe
        "C:\Windows\system32\net.exe" pause free_video_splitter_1_0_7
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:1708
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 pause free_video_splitter_1_0_7
          4⤵
          • System Location Discovery: System Language Discovery
          PID:1596
      • C:\Users\Admin\AppData\Local\Free Video Splitter 1.0.7\freevideosplitter.exe
        "C:\Users\Admin\AppData\Local\Free Video Splitter 1.0.7\freevideosplitter.exe" -i
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        PID:1984

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Free Video Splitter 1.0.7\freevideosplitter.exe

    Filesize

    2.4MB

    MD5

    3643de5355639fe8f9b74fd4bdd1f4a5

    SHA1

    fb4061b95c689931b8c6a4a5a5859bd7d507dabc

    SHA256

    e1ca0b8ebb54e563eaf8fbb337b1d979dad164a5e0121d40bfae9cb967db68ec

    SHA512

    8965fa2b5eb81af5c976d7aedb38b25a272380b943b450723e86cb93277f61dec1df377c66a481e96e9edaec6c937da5260c042d15bbaef88b3e4a2589878a1b

  • \Users\Admin\AppData\Local\Temp\is-22FC6.tmp\_isetup\_iscrypt.dll

    Filesize

    2KB

    MD5

    a69559718ab506675e907fe49deb71e9

    SHA1

    bc8f404ffdb1960b50c12ff9413c893b56f2e36f

    SHA256

    2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

    SHA512

    e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

  • \Users\Admin\AppData\Local\Temp\is-22FC6.tmp\_isetup\_shfoldr.dll

    Filesize

    22KB

    MD5

    92dc6ef532fbb4a5c3201469a5b5eb63

    SHA1

    3e89ff837147c16b4e41c30d6c796374e0b8e62c

    SHA256

    9884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87

    SHA512

    9908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3

  • \Users\Admin\AppData\Local\Temp\is-RGKQH.tmp\ed611c779d12296672586caad7f05cd9ca76c2d3eb651f6d9b6af212bd42015a.tmp

    Filesize

    683KB

    MD5

    c67eb7e995cf35d05c75f4c075b6a0c4

    SHA1

    b75761dc0b52b67c9edab769ca7794b630f9b449

    SHA256

    d45456a097eb3df7f4c6cb48cb5bd9532597e8f424c695f77aadb049bd5a98fc

    SHA512

    78917aa49fe61c800dba01215199ab2a8689b092939e53275e12bf74b3c9c33520fdb5dcbb063e7fd398a53b9bc5098481b684475cebd5df8f04b173b7f04f15

  • memory/1964-118-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/1964-2-0x0000000000401000-0x000000000040B000-memory.dmp

    Filesize

    40KB

  • memory/1964-0-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/1984-120-0x0000000000400000-0x000000000066B000-memory.dmp

    Filesize

    2.4MB

  • memory/1984-145-0x0000000000400000-0x000000000066B000-memory.dmp

    Filesize

    2.4MB

  • memory/1984-164-0x0000000000400000-0x000000000066B000-memory.dmp

    Filesize

    2.4MB

  • memory/1984-115-0x0000000000400000-0x000000000066B000-memory.dmp

    Filesize

    2.4MB

  • memory/1984-161-0x0000000000400000-0x000000000066B000-memory.dmp

    Filesize

    2.4MB

  • memory/1984-157-0x0000000000400000-0x000000000066B000-memory.dmp

    Filesize

    2.4MB

  • memory/1984-123-0x0000000000400000-0x000000000066B000-memory.dmp

    Filesize

    2.4MB

  • memory/1984-126-0x0000000000400000-0x000000000066B000-memory.dmp

    Filesize

    2.4MB

  • memory/1984-129-0x0000000000400000-0x000000000066B000-memory.dmp

    Filesize

    2.4MB

  • memory/1984-132-0x0000000000400000-0x000000000066B000-memory.dmp

    Filesize

    2.4MB

  • memory/1984-135-0x0000000000400000-0x000000000066B000-memory.dmp

    Filesize

    2.4MB

  • memory/1984-136-0x00000000029A0000-0x0000000002A42000-memory.dmp

    Filesize

    648KB

  • memory/1984-142-0x0000000000400000-0x000000000066B000-memory.dmp

    Filesize

    2.4MB

  • memory/1984-113-0x0000000000400000-0x000000000066B000-memory.dmp

    Filesize

    2.4MB

  • memory/1984-148-0x0000000000400000-0x000000000066B000-memory.dmp

    Filesize

    2.4MB

  • memory/1984-151-0x0000000000400000-0x000000000066B000-memory.dmp

    Filesize

    2.4MB

  • memory/1984-154-0x0000000000400000-0x000000000066B000-memory.dmp

    Filesize

    2.4MB

  • memory/2328-9-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB

  • memory/2328-112-0x0000000004720000-0x000000000498B000-memory.dmp

    Filesize

    2.4MB

  • memory/2328-114-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB