Analysis

  • max time kernel
    148s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    30-05-2024 11:11

General

  • Target

    c41b55f30bbfd195e70190415c242f224fc2257e19a8b66fd3e03485f9f4572c.exe

  • Size

    4.8MB

  • MD5

    ccaabc1da8b300711446793ca2df28b7

  • SHA1

    e1f4b0715b5a73225a97ad0d96210127dbafe188

  • SHA256

    c41b55f30bbfd195e70190415c242f224fc2257e19a8b66fd3e03485f9f4572c

  • SHA512

    d48f2b7d875607b8f12ebaf797f06bbc0ee0df3108548312a9cb640af6641a7afd2af92b06459016f29920f57af1597f33e0811fa4b7fde39c30bd339f402262

  • SSDEEP

    98304:m2HXWTA6+amdZofSbfYqez+L+RUYsWu1+8IfUxfQh+v2:v3eFi+S+dfe6l

Malware Config

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 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 FindShellTrayWindow 1 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\c41b55f30bbfd195e70190415c242f224fc2257e19a8b66fd3e03485f9f4572c.exe
    "C:\Users\Admin\AppData\Local\Temp\c41b55f30bbfd195e70190415c242f224fc2257e19a8b66fd3e03485f9f4572c.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:932
    • C:\Users\Admin\AppData\Local\Temp\is-SLU6V.tmp\c41b55f30bbfd195e70190415c242f224fc2257e19a8b66fd3e03485f9f4572c.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-SLU6V.tmp\c41b55f30bbfd195e70190415c242f224fc2257e19a8b66fd3e03485f9f4572c.tmp" /SL5="$701E8,4746797,54272,C:\Users\Admin\AppData\Local\Temp\c41b55f30bbfd195e70190415c242f224fc2257e19a8b66fd3e03485f9f4572c.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:1860
      • C:\Users\Admin\AppData\Local\5K Player\5kplayer.exe
        "C:\Users\Admin\AppData\Local\5K Player\5kplayer.exe" -i
        3⤵
        • Executes dropped EXE
        PID:4440
      • C:\Users\Admin\AppData\Local\5K Player\5kplayer.exe
        "C:\Users\Admin\AppData\Local\5K Player\5kplayer.exe" -s
        3⤵
        • Executes dropped EXE
        PID:1072

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\5K Player\5kplayer.exe

    Filesize

    3.0MB

    MD5

    cb481b3db00e4fc9aa8bdb5e226eb3f3

    SHA1

    1648bf6b568339e51bc115e17d72ded18d4afcd1

    SHA256

    7d519edd393df367f6959f30c081e5d1263b6a0455f8e781ecc8a1f3fb6849b0

    SHA512

    b0daf6f2210a51ac26a561da15fab111bfb5f444446310abead8b5cbdd687bc087158305a23eca200f8590a778c744f20503ff320f5852de0e3c932a03d747cd

  • C:\Users\Admin\AppData\Local\Temp\is-8GUHV.tmp\_isetup\_iscrypt.dll

    Filesize

    2KB

    MD5

    a69559718ab506675e907fe49deb71e9

    SHA1

    bc8f404ffdb1960b50c12ff9413c893b56f2e36f

    SHA256

    2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

    SHA512

    e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

  • C:\Users\Admin\AppData\Local\Temp\is-SLU6V.tmp\c41b55f30bbfd195e70190415c242f224fc2257e19a8b66fd3e03485f9f4572c.tmp

    Filesize

    680KB

    MD5

    2147d68d1e5f1da63ca70612f4181ce6

    SHA1

    517ecefc93c258b1bc05ee5433e3a328a6f9168a

    SHA256

    3ba1867d2ba6b3db3c6c4c5fa238246fd4351f337c4e167e97eb25e2a5f0b181

    SHA512

    bc4a5e0a2e83e39005b6e3d470681741435a7b06f182162c3a72a96b0f763cb5a80eaad7e936216ac21c00d00b07e429149f0d4e1869868b6e469b1427ed8188

  • memory/932-70-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/932-3-0x0000000000401000-0x000000000040B000-memory.dmp

    Filesize

    40KB

  • memory/932-0-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/1072-90-0x0000000000400000-0x00000000006FE000-memory.dmp

    Filesize

    3.0MB

  • memory/1072-96-0x0000000000400000-0x00000000006FE000-memory.dmp

    Filesize

    3.0MB

  • memory/1072-118-0x0000000000400000-0x00000000006FE000-memory.dmp

    Filesize

    3.0MB

  • memory/1072-115-0x0000000000400000-0x00000000006FE000-memory.dmp

    Filesize

    3.0MB

  • memory/1072-67-0x0000000000400000-0x00000000006FE000-memory.dmp

    Filesize

    3.0MB

  • memory/1072-69-0x0000000000400000-0x00000000006FE000-memory.dmp

    Filesize

    3.0MB

  • memory/1072-111-0x0000000000400000-0x00000000006FE000-memory.dmp

    Filesize

    3.0MB

  • memory/1072-108-0x0000000000400000-0x00000000006FE000-memory.dmp

    Filesize

    3.0MB

  • memory/1072-72-0x0000000000400000-0x00000000006FE000-memory.dmp

    Filesize

    3.0MB

  • memory/1072-75-0x0000000000400000-0x00000000006FE000-memory.dmp

    Filesize

    3.0MB

  • memory/1072-76-0x0000000000400000-0x00000000006FE000-memory.dmp

    Filesize

    3.0MB

  • memory/1072-79-0x0000000000400000-0x00000000006FE000-memory.dmp

    Filesize

    3.0MB

  • memory/1072-82-0x0000000000400000-0x00000000006FE000-memory.dmp

    Filesize

    3.0MB

  • memory/1072-85-0x0000000000400000-0x00000000006FE000-memory.dmp

    Filesize

    3.0MB

  • memory/1072-88-0x00000000009B0000-0x0000000000A52000-memory.dmp

    Filesize

    648KB

  • memory/1072-105-0x0000000000400000-0x00000000006FE000-memory.dmp

    Filesize

    3.0MB

  • memory/1072-102-0x0000000000400000-0x00000000006FE000-memory.dmp

    Filesize

    3.0MB

  • memory/1072-99-0x0000000000400000-0x00000000006FE000-memory.dmp

    Filesize

    3.0MB

  • memory/1860-10-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB

  • memory/1860-71-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB

  • memory/4440-63-0x0000000000400000-0x00000000006FE000-memory.dmp

    Filesize

    3.0MB

  • memory/4440-59-0x0000000000400000-0x00000000006FE000-memory.dmp

    Filesize

    3.0MB

  • memory/4440-65-0x0000000000400000-0x00000000006FE000-memory.dmp

    Filesize

    3.0MB

  • memory/4440-60-0x0000000000400000-0x00000000006FE000-memory.dmp

    Filesize

    3.0MB