Unmasking the new persistent attacks on Japan

    Date: 03/11/2025

    Severity: Medium

    Summary

    "Unmasking the new persistent attacks on Japan" reveals an ongoing cyber campaign targeting Japanese organizations across various sectors across various business verticals, including technology, telecommunications, entertainment, education, and e-commerce, based on our analysis of command and control (C2) server artefacts. The attackers exploited the CVE-2024-4577 vulnerability in PHP to gain initial access, using Cobalt Strike plugins for post-exploitation. They deployed adversarial tools via Alibaba cloud containers, aiming to steal credentials, establish persistence, and escalate privileges, signaling potential future attacks.

    Indicators of Compromise (IOC) List 

    URL/Domain

    http://38.14.255.23

    IP Address

    118.31.18.77

    38.14.255.23

    Hash

    0ff87724012499381266e5eb8481117ed4549f44fa88be2c517afee899c2179f
    
    ccedc244ad5933537231139e24b4cad0df3e44d3b2944ef3b28dea5973396185
    
    73d908725a08dcfebf300ef187dab1c5ba1c3cba8343c678df49335ba7e89e47
    
    3c6511b15e3b0e8c378a549347fa0f0745fd371aaa86206cb03528fdc0a23b29
    
    a2f493769c0cd1cb3518571678f071588d683703ed368830f15405c1eb4028b2
    
    83290b2f6e7b3fb1bcfa90ed1e550acaeb85c7dc0cb4476b35818436af9395d2
    
    cec655cc4c6bfcbc336d3afc4e5537e619bcf58329d291a51f39b3d3a250e962
    
    f7396835d69675b138d0e2bee9b4ceb0a048bf705cb2f1012f1eee51e406d6e6
    
    6b5a75dcc505ac1c065844be27ee6d4693ac51abfc04aaf9bbfc1a06e69a19fd
    
    ad5f610e8fb4f0d74d5d761532c8c8b2b9e01a2a402ba89389794d15ecca8337
    
    07d8a505492566daeb6174c312a4f7114dc60efcd1d17fef12ca0b8d6303fb2b
    
    8015b6036ecbae1f9e850af6bdf361d7598201cd4d4c55ae334ed72cf17ba94d
    
    829c5a07b065b15969ea8c519705d64fc4c1c39c05e898fc9abfbdb289c484d5

    Gurucul Threat Detection and Incident Response (TDIR) Queries for Detection

    Detection Query 1

    userdomainname like "http://38.14.255.23" or url like "http://38.14.255.23"

    Detection Query 2

    dstipaddress IN ("118.31.18.77","38.14.255.23") or ipaddress IN ("118.31.18.77","38.14.255.23") or publicipaddress IN ("118.31.18.77","38.14.255.23") or srcipaddress IN ("118.31.18.77","38.14.255.23")

    Detection Query 3

    sha256hash IN ("0ff87724012499381266e5eb8481117ed4549f44fa88be2c517afee899c2179f","ccedc244ad5933537231139e24b4cad0df3e44d3b2944ef3b28dea5973396185","73d908725a08dcfebf300ef187dab1c5ba1c3cba8343c678df49335ba7e89e47","3c6511b15e3b0e8c378a549347fa0f0745fd371aaa86206cb03528fdc0a23b29","a2f493769c0cd1cb3518571678f071588d683703ed368830f15405c1eb4028b2","83290b2f6e7b3fb1bcfa90ed1e550acaeb85c7dc0cb4476b35818436af9395d2","cec655cc4c6bfcbc336d3afc4e5537e619bcf58329d291a51f39b3d3a250e962","f7396835d69675b138d0e2bee9b4ceb0a048bf705cb2f1012f1eee51e406d6e6","6b5a75dcc505ac1c065844be27ee6d4693ac51abfc04aaf9bbfc1a06e69a19fd","ad5f610e8fb4f0d74d5d761532c8c8b2b9e01a2a402ba89389794d15ecca8337","07d8a505492566daeb6174c312a4f7114dc60efcd1d17fef12ca0b8d6303fb2b","8015b6036ecbae1f9e850af6bdf361d7598201cd4d4c55ae334ed72cf17ba94d","829c5a07b065b15969ea8c519705d64fc4c1c39c05e898fc9abfbdb289c484d5")

    Reference:  

    https://blog.talosintelligence.com/new-persistent-attacks-japan/  


    Tags

    VulnerabilityCVE - 2024JapanInformation TechnologyCommunicationsEducationCommercial FacilitiesExploit

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