Analysis

  • max time kernel
    146s
  • max time network
    150s
  • platform
    windows11-21h2_x64
  • resource
    win11-20240508-en
  • resource tags

    arch:x64arch:x86image:win11-20240508-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    18-06-2024 21:00

General

  • Target

    de49a7ee152ac6bdc43bee28b707ed152f9d6754884a405abd3efc5845bdd833.exe

  • Size

    4.5MB

  • MD5

    7ba0fbe5697771fa27b650273c8824fc

  • SHA1

    3737bf7b8a60f6a13fbdf627249e3369aa355730

  • SHA256

    de49a7ee152ac6bdc43bee28b707ed152f9d6754884a405abd3efc5845bdd833

  • SHA512

    b088b42c94ef8df3233bf6da8f6cdeeb0d666b6712644edca6ee0cd06fe4ffdb4b548a8d127e68ba6a0b833783b568f1478a0e222c630d3bcec19d7426bc54ee

  • SSDEEP

    98304:meoqEgukLFb6ZY9guhkhrJTYQy3BZK5ijs3BiT1M:+g9b6ghkXo8IA85M

Malware Config

Extracted

Family

socks5systemz

C2

ejtiyoe.ua

Signatures

  • Detect Socks5Systemz Payload 1 IoCs
  • Socks5Systemz

    Socks5Systemz is a botnet written in C++.

  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 1 IoCs
  • Unexpected DNS network traffic destination 3 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 FindShellTrayWindow 1 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\de49a7ee152ac6bdc43bee28b707ed152f9d6754884a405abd3efc5845bdd833.exe
    "C:\Users\Admin\AppData\Local\Temp\de49a7ee152ac6bdc43bee28b707ed152f9d6754884a405abd3efc5845bdd833.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:3768
    • C:\Users\Admin\AppData\Local\Temp\is-LV9N7.tmp\de49a7ee152ac6bdc43bee28b707ed152f9d6754884a405abd3efc5845bdd833.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-LV9N7.tmp\de49a7ee152ac6bdc43bee28b707ed152f9d6754884a405abd3efc5845bdd833.tmp" /SL5="$500D4,4415939,54272,C:\Users\Admin\AppData\Local\Temp\de49a7ee152ac6bdc43bee28b707ed152f9d6754884a405abd3efc5845bdd833.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:2836
      • C:\Users\Admin\AppData\Local\FanPlayer Cloud Free\playercloudfree32.exe
        "C:\Users\Admin\AppData\Local\FanPlayer Cloud Free\playercloudfree32.exe" -i
        3⤵
        • Executes dropped EXE
        PID:1080
      • C:\Users\Admin\AppData\Local\FanPlayer Cloud Free\playercloudfree32.exe
        "C:\Users\Admin\AppData\Local\FanPlayer Cloud Free\playercloudfree32.exe" -s
        3⤵
        • Executes dropped EXE
        PID:756

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\FanPlayer Cloud Free\playercloudfree32.exe
    Filesize

    2.6MB

    MD5

    a213b5ea5fe7413898f334ddcdab0e1c

    SHA1

    16a8453018553902a2ef3a1c9d795ead59467f18

    SHA256

    0b18f263f8b8087a043ef6d0563c8672843a59cd32561e5a03a0b6b96925bf66

    SHA512

    0c33e2484ba97e2241e7bf127efef3fee8fe427df12e55e8076f59cff17120b900aa0d13b63eaecc263771dbd1ae4dee303953540a3ad8bb690f9515be68e60a

  • C:\Users\Admin\AppData\Local\Temp\is-3I22L.tmp\_isetup\_iscrypt.dll
    Filesize

    2KB

    MD5

    a69559718ab506675e907fe49deb71e9

    SHA1

    bc8f404ffdb1960b50c12ff9413c893b56f2e36f

    SHA256

    2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

    SHA512

    e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

  • C:\Users\Admin\AppData\Local\Temp\is-LV9N7.tmp\de49a7ee152ac6bdc43bee28b707ed152f9d6754884a405abd3efc5845bdd833.tmp
    Filesize

    680KB

    MD5

    18e1f77fda7cca9e6162bbfc406b4340

    SHA1

    b73e1046cb4dc7c12923d84eb311e27acfae795b

    SHA256

    e46557f8e4fce33af732b6d1eff19f00105f6e112de1b5a555aa233988858ab3

    SHA512

    71a1ac2b0aec70d1f47625850bbf916abb5d960ba7ec6a37cb8f22037c3839917134b6c82955feff37772dddb2d5ad34f76c9bb68337729c4159ab451eaffe57

  • memory/756-89-0x0000000000980000-0x0000000000A22000-memory.dmp
    Filesize

    648KB

  • memory/756-92-0x0000000000400000-0x000000000069E000-memory.dmp
    Filesize

    2.6MB

  • memory/756-118-0x0000000000400000-0x000000000069E000-memory.dmp
    Filesize

    2.6MB

  • memory/756-115-0x0000000000400000-0x000000000069E000-memory.dmp
    Filesize

    2.6MB

  • memory/756-112-0x0000000000400000-0x000000000069E000-memory.dmp
    Filesize

    2.6MB

  • memory/756-109-0x0000000000400000-0x000000000069E000-memory.dmp
    Filesize

    2.6MB

  • memory/756-67-0x0000000000400000-0x000000000069E000-memory.dmp
    Filesize

    2.6MB

  • memory/756-106-0x0000000000400000-0x000000000069E000-memory.dmp
    Filesize

    2.6MB

  • memory/756-69-0x0000000000400000-0x000000000069E000-memory.dmp
    Filesize

    2.6MB

  • memory/756-103-0x0000000000400000-0x000000000069E000-memory.dmp
    Filesize

    2.6MB

  • memory/756-100-0x0000000000400000-0x000000000069E000-memory.dmp
    Filesize

    2.6MB

  • memory/756-72-0x0000000000400000-0x000000000069E000-memory.dmp
    Filesize

    2.6MB

  • memory/756-97-0x0000000000400000-0x000000000069E000-memory.dmp
    Filesize

    2.6MB

  • memory/756-76-0x0000000000400000-0x000000000069E000-memory.dmp
    Filesize

    2.6MB

  • memory/756-77-0x0000000000400000-0x000000000069E000-memory.dmp
    Filesize

    2.6MB

  • memory/756-80-0x0000000000400000-0x000000000069E000-memory.dmp
    Filesize

    2.6MB

  • memory/756-83-0x0000000000400000-0x000000000069E000-memory.dmp
    Filesize

    2.6MB

  • memory/756-86-0x0000000000400000-0x000000000069E000-memory.dmp
    Filesize

    2.6MB

  • memory/1080-75-0x0000000000400000-0x000000000069E000-memory.dmp
    Filesize

    2.6MB

  • memory/1080-63-0x0000000000400000-0x000000000069E000-memory.dmp
    Filesize

    2.6MB

  • memory/1080-65-0x0000000000400000-0x000000000069E000-memory.dmp
    Filesize

    2.6MB

  • memory/1080-61-0x0000000000400000-0x000000000069E000-memory.dmp
    Filesize

    2.6MB

  • memory/1080-59-0x0000000000400000-0x000000000069E000-memory.dmp
    Filesize

    2.6MB

  • memory/2836-13-0x0000000000400000-0x00000000004BA000-memory.dmp
    Filesize

    744KB

  • memory/2836-71-0x0000000000400000-0x00000000004BA000-memory.dmp
    Filesize

    744KB

  • memory/3768-0-0x0000000000400000-0x0000000000414000-memory.dmp
    Filesize

    80KB

  • memory/3768-70-0x0000000000400000-0x0000000000414000-memory.dmp
    Filesize

    80KB

  • memory/3768-3-0x0000000000401000-0x000000000040B000-memory.dmp
    Filesize

    40KB