Analysis

  • max time kernel
    292s
  • max time network
    298s
  • platform
    windows7_x64
  • resource
    win7-20240508-en
  • resource tags

    arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
  • submitted
    20-06-2024 22:37

General

  • Target

    2265e5db5087396050269cfb635399a2bcf6a23386aa0eacb0b13160f81931f0.exe

  • Size

    4.5MB

  • MD5

    c13843c63e1f98974b66244bd4c0a351

  • SHA1

    ba4ddd69e33c311b0145726724f812aea82413e1

  • SHA256

    2265e5db5087396050269cfb635399a2bcf6a23386aa0eacb0b13160f81931f0

  • SHA512

    762c56c753a4b579ed13fa05a585f7deae9d5a827724d9bc4c43978368a5c08cf922a3f0cd535eb5396b8661cca84732d3fe41facc54d08ef547f5076fa3c7aa

  • SSDEEP

    98304:mrlYGBzJllzhzYmM8GTRwYTbZN1WHr5lIQdAAoFB:qRnjkyYTLkDIQroP

Malware Config

Extracted

Family

socks5systemz

C2

eboinwd.ua

goceebm.com

Signatures

  • Detect Socks5Systemz Payload 1 IoCs
  • Socks5Systemz

    Socks5Systemz is a botnet written in C++.

  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 5 IoCs
  • Unexpected DNS network traffic destination 13 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 15 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2265e5db5087396050269cfb635399a2bcf6a23386aa0eacb0b13160f81931f0.exe
    "C:\Users\Admin\AppData\Local\Temp\2265e5db5087396050269cfb635399a2bcf6a23386aa0eacb0b13160f81931f0.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:1484
    • C:\Users\Admin\AppData\Local\Temp\is-V4T55.tmp\2265e5db5087396050269cfb635399a2bcf6a23386aa0eacb0b13160f81931f0.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-V4T55.tmp\2265e5db5087396050269cfb635399a2bcf6a23386aa0eacb0b13160f81931f0.tmp" /SL5="$40016,4433064,54272,C:\Users\Admin\AppData\Local\Temp\2265e5db5087396050269cfb635399a2bcf6a23386aa0eacb0b13160f81931f0.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:620
      • 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:2492
      • 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:2532

Network

MITRE ATT&CK Matrix ATT&CK v13

Discovery

Query Registry

1
T1012

System Information Discovery

1
T1082

Replay Monitor

Loading Replay Monitor...

Downloads

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

    2.6MB

    MD5

    58cb893c938c713c75f37a1034dc814a

    SHA1

    bfaf7f08893509ec989ac81636702cafb44c8722

    SHA256

    24b894bbb459b0d7f3e112a134c441ee783f46387f4c9ae9fcb95e5bd558efb6

    SHA512

    c18f738dd9c6b3206c950ee8a8c77846d5bb971038bc90237d33677e25ca1633c2be0c55308561cc2dc0b2d17a4a3502542ac7afb70c410f29b12013320b7df8

  • \Users\Admin\AppData\Local\Temp\is-4MJEJ.tmp\_isetup\_iscrypt.dll
    Filesize

    2KB

    MD5

    a69559718ab506675e907fe49deb71e9

    SHA1

    bc8f404ffdb1960b50c12ff9413c893b56f2e36f

    SHA256

    2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

    SHA512

    e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

  • \Users\Admin\AppData\Local\Temp\is-4MJEJ.tmp\_isetup\_shfoldr.dll
    Filesize

    22KB

    MD5

    92dc6ef532fbb4a5c3201469a5b5eb63

    SHA1

    3e89ff837147c16b4e41c30d6c796374e0b8e62c

    SHA256

    9884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87

    SHA512

    9908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3

  • \Users\Admin\AppData\Local\Temp\is-V4T55.tmp\2265e5db5087396050269cfb635399a2bcf6a23386aa0eacb0b13160f81931f0.tmp
    Filesize

    680KB

    MD5

    18e1f77fda7cca9e6162bbfc406b4340

    SHA1

    b73e1046cb4dc7c12923d84eb311e27acfae795b

    SHA256

    e46557f8e4fce33af732b6d1eff19f00105f6e112de1b5a555aa233988858ab3

    SHA512

    71a1ac2b0aec70d1f47625850bbf916abb5d960ba7ec6a37cb8f22037c3839917134b6c82955feff37772dddb2d5ad34f76c9bb68337729c4159ab451eaffe57

  • memory/620-76-0x0000000005A40000-0x0000000005CDD000-memory.dmp
    Filesize

    2.6MB

  • memory/620-19-0x0000000000400000-0x00000000004BA000-memory.dmp
    Filesize

    744KB

  • memory/620-64-0x0000000005A40000-0x0000000005CDD000-memory.dmp
    Filesize

    2.6MB

  • memory/620-74-0x0000000000400000-0x00000000004BA000-memory.dmp
    Filesize

    744KB

  • memory/1484-3-0x0000000000401000-0x000000000040B000-memory.dmp
    Filesize

    40KB

  • memory/1484-0-0x0000000000400000-0x0000000000414000-memory.dmp
    Filesize

    80KB

  • memory/1484-73-0x0000000000400000-0x0000000000414000-memory.dmp
    Filesize

    80KB

  • memory/2492-65-0x0000000000400000-0x000000000069D000-memory.dmp
    Filesize

    2.6MB

  • memory/2492-67-0x0000000000400000-0x000000000069D000-memory.dmp
    Filesize

    2.6MB

  • memory/2492-69-0x0000000000400000-0x000000000069D000-memory.dmp
    Filesize

    2.6MB

  • memory/2532-79-0x0000000000400000-0x000000000069D000-memory.dmp
    Filesize

    2.6MB

  • memory/2532-107-0x0000000000400000-0x000000000069D000-memory.dmp
    Filesize

    2.6MB

  • memory/2532-71-0x0000000000400000-0x000000000069D000-memory.dmp
    Filesize

    2.6MB

  • memory/2532-82-0x0000000000400000-0x000000000069D000-memory.dmp
    Filesize

    2.6MB

  • memory/2532-85-0x0000000000400000-0x000000000069D000-memory.dmp
    Filesize

    2.6MB

  • memory/2532-88-0x0000000000400000-0x000000000069D000-memory.dmp
    Filesize

    2.6MB

  • memory/2532-91-0x0000000000400000-0x000000000069D000-memory.dmp
    Filesize

    2.6MB

  • memory/2532-92-0x00000000026A0000-0x0000000002742000-memory.dmp
    Filesize

    648KB

  • memory/2532-98-0x0000000000400000-0x000000000069D000-memory.dmp
    Filesize

    2.6MB

  • memory/2532-101-0x0000000000400000-0x000000000069D000-memory.dmp
    Filesize

    2.6MB

  • memory/2532-104-0x0000000000400000-0x000000000069D000-memory.dmp
    Filesize

    2.6MB

  • memory/2532-75-0x0000000000400000-0x000000000069D000-memory.dmp
    Filesize

    2.6MB

  • memory/2532-110-0x0000000000400000-0x000000000069D000-memory.dmp
    Filesize

    2.6MB

  • memory/2532-113-0x0000000000400000-0x000000000069D000-memory.dmp
    Filesize

    2.6MB

  • memory/2532-116-0x0000000000400000-0x000000000069D000-memory.dmp
    Filesize

    2.6MB

  • memory/2532-119-0x0000000000400000-0x000000000069D000-memory.dmp
    Filesize

    2.6MB

  • memory/2532-122-0x0000000000400000-0x000000000069D000-memory.dmp
    Filesize

    2.6MB

  • memory/2532-125-0x0000000000400000-0x000000000069D000-memory.dmp
    Filesize

    2.6MB

  • memory/2532-128-0x0000000000400000-0x000000000069D000-memory.dmp
    Filesize

    2.6MB

  • memory/2532-131-0x0000000000400000-0x000000000069D000-memory.dmp
    Filesize

    2.6MB

  • memory/2532-134-0x0000000000400000-0x000000000069D000-memory.dmp
    Filesize

    2.6MB