Malicious PDF — malware analysis report

Static analysis result for SHA-256 369165ba61943242…

MALICIOUS

PDF

40.7 KB Created: 2021-05-14 09:31:20 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 600fb01f8e9dcdcd87238707eaf395ba SHA-1: 78ae17163d50c87fea5b8903fdfda0bb397853f0 SHA-256: 369165ba61943242a9e1cc0a4ae20b6f56939dfc9dd8b06f7c5a717e3bade7bf
200 Risk Score

Malware Insights

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

The PDF document contains multiple links to malicious redirectors, impersonating brands like eBay and promising free Robux or game hacks to lure users. The primary link directs to 'https://netcdn.xyz/app/431946152/free-robux-obby-2021-game-hack', which is associated with known malicious infrastructure. While no scripts were explicitly extracted, the PDF structure and embedded links suggest an attempt to exploit users through social engineering and potentially deliver a second-stage payload.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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.
  • Brand-impersonation credential phishing lure high SE_BRAND_CREDENTIAL_PHISH
    Document impersonates a well-known consumer brand and uses account-security / verification language ('unusual activity', 'account on hold', 'verify your account') to steer the reader to a credential-harvesting link. Corroborated by: call-to-action link host does not match the impersonated brand: https://netcdn.xyz/app/431946152/free-robux-obby-2021-game-hack.
  • 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 https://netcdn.xyz/app/431946152/free-robux-obby-2021-game-hack In PDF document text
    • http://www.makoto.su/images/minecraft-hacks-wurst_GM479516143.pdfIn PDF document text
    • http://www.makoto.su/images/coin-master-online-hack-no-survey-no-password_GM406889139.pdfIn PDF document text
    • http://www.makoto.su/images/free-robux-apps-that-work_GM431946152.pdfIn PDF document text
    • http://www.makoto.su/images/free-robux-app-real_GM431946152.pdfIn PDF document text
    • http://www.makoto.su/images/roblox-hacking-website_GM431946152.pdfIn PDF document text
    • http://www.makoto.su/images/coin-master-free-spins-link-today-new_GM406889139.pdfIn PDF document text
    • http://www.makoto.su/images/coin-master-free-spins-link_GM406889139.pdfIn PDF document text
    • http://www.makoto.su/images/minecraft-pe-015-0-apk-free-download_GM479516143.pdfIn PDF document text
    • http://www.makoto.su/images/what-is-robux-in-roblox_GM431946152.pdfIn PDF document text
    • http://www.makoto.su/images/free-spins-for-coin-master-app_GM406889139.pdfIn PDF document text
    • http://www.makoto.su/images/minecraft-java-server-hosting-free_GM479516143.pdfIn PDF document text
    • http://www.makoto.su/images/minecraft-hacks-18-9_GM479516143.pdfIn PDF document text
    • http://www.makoto.su/images/how-to-get-free-roblox_GM431946152.pdfIn PDF document text
    • http://www.makoto.su/images/coin-master-admin-free-spins_GM406889139.pdfIn PDF document text
    • http://www.makoto.su/images/free-daily-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://www.makoto.su/images/fbchampion-com_GM406889139.pdfIn PDF document text
    • http://www.makoto.su/images/como-conseguir-monedas-infinitas-y-tiradas-de-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://www.makoto.su/images/free-robux-no-survey_GM431946152.pdfIn PDF document text
    • http://www.makoto.su/images/free-coin-spin-daily-link-net_GM406889139.pdfIn PDF document text
    • http://www.makoto.su/images/hack-coin-master-online-without-human-verification_GM406889139.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
stream_003_off0000430c.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x430C 24676 bytes
SHA-256: 19fa81d82dd5712ac69a72afb909f6f929564a0cac390fd9d96b0b5d47b4dca8
font_01_sfnt_off00007b47.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7B47 18596 bytes
SHA-256: 4ee57ed15e8700d5e4346dbed35fcc2f6ba8dbed04d546ac38088c27601a53c6

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