Malicious PDF — malware analysis report

Static analysis result for SHA-256 ccd1502e0cb4294d…

MALICIOUS

PDF

34.3 KB Created: 2021-06-25 22:43:19 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: 5608d1f76d85b45505e5d6f6a18adfb7 SHA-1: 30c7b20054a2836639cad1477a0e1d878f29ab8e SHA-256: ccd1502e0cb4294d61c94addd9d6b051187483c6d37c80cb756853091728b622
168 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF contains embedded JavaScript and links to a known malicious redirector infrastructure. The document body and heuristics suggest a lure for game hacks or cheats, likely leading to a malicious payload download or exploit execution. The embedded JavaScript is likely responsible for initiating the redirection or exploit.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 5

  • PDF links to a 'free generator / game hack' redirector critical PDF_GAME_HACK_REDIRECT_LURE
    PDF's clickable action targets a redirector of the form /app/<id>/<slug>-game-hack — the landing-page shape of a large SEO 'free spins / generator / game hack' lure family that funnels victims through rotating disposable hosts to a malware/scam payload. The multi-link variants also trip ML/link-farm rules; this catches the single-link variants that otherwise score clean. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://netcdn.co/app/431946152/eternal-empire-roblox-free-game-hack In PDF document text
    • https://sundae.co.th/js/userfiles/files/minecraft-115-2-hacks_GM479516143.pdfIn PDF document text
    • https://sundae.co.th/js/userfiles/files/minecraft-free-download-linux_GM479516143.pdfIn PDF document text
    • https://sundae.co.th/js/userfiles/files/free-coin-and-spin-in-coin-master_GM406889139.pdfIn PDF document text
    • https://sundae.co.th/js/userfiles/files/how-to-hack-nuclear-tycoon-money-on-roblox_GM431946152.pdfIn PDF document text
    • https://sundae.co.th/js/userfiles/files/mobihack-net-roblox-hack_GM431946152.pdfIn PDF document text
    • https://sundae.co.th/js/userfiles/files/how-to-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • https://sundae.co.th/js/userfiles/files/coin-master-free-spins-link-2021_GM406889139.pdfIn PDF document text
    • https://sundae.co.th/js/userfiles/files/how-to-get-free-spins-on-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://sundae.co.th/js/userfiles/files/assassin-hacks-on-roblox_GM431946152.pdfIn PDF document text
    • https://sundae.co.th/js/userfiles/files/roblox-hacks-and-cheats_GM431946152.pdfIn PDF document text
    • https://sundae.co.th/js/userfiles/files/coin-master-links-free-spins_GM406889139.pdfIn PDF document text
    • https://sundae.co.th/js/userfiles/files/free-robux-no-downloading-apps_GM431946152.pdfIn PDF document text
    • https://sundae.co.th/js/userfiles/files/free-coins-and-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://sundae.co.th/js/userfiles/files/coin-master-coins-free_GM406889139.pdfIn PDF document text
    • https://sundae.co.th/js/userfiles/files/make-robux_GM431946152.pdfIn PDF document text
    • https://sundae.co.th/js/userfiles/files/cheat-engine-roblox-bee-swarm-simulator_GM431946152.pdfIn PDF document text
    • https://sundae.co.th/js/userfiles/files/how-to-hack-coin-master-pc_GM406889139.pdfIn PDF document text
    • https://sundae.co.th/js/userfiles/files/robux-free-c_GM431946152.pdfIn PDF document text
    • https://sundae.co.th/js/userfiles/files/free-coin-master-spins_GM406889139.pdfIn PDF document text
    • https://sundae.co.th/js/userfiles/files/how-to-get-free-robux-without-human-verification_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000308c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x308C 21760 bytes
SHA-256: b6221a8c428c5c96e75a31f240ce78b13dda058173bd73333af5d216c3a3466b
font_01_sfnt_off0000603b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x603B 19312 bytes
SHA-256: dcda2b4c7d14b9eec6a22eaadf5e46854af3ee6696f8c372da14b1dd9962e5a6

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