Malicious PDF — malware analysis report

Static analysis result for SHA-256 470e581ac8a3373b…

MALICIOUS

PDF

32.4 KB Created: 2021-07-19 13:37:12 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: ea91a8fbfa55f7e7440b74935a943a0a SHA-1: 7cb69dc30c68e4e0d3bbb57b211026dd0aefd8ec SHA-256: 470e581ac8a3373b208834b53337a2d8d56e78b32c146c4ea3d3cdee82b48d8b
160 Risk Score

Malware Insights

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

This PDF document contains multiple links to known malicious redirectors and infrastructure, disguised as 'free Robux generators' and 'game hacks'. The document body explicitly contains the lure text and a call to action to access a Robux generator. The embedded links likely lead to further malicious content or exploit delivery, indicating a phishing or scam attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9900

Heuristics 4

  • 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.
  • 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.tw/app/431946152/how-can-you-get-free-robux-game-hack In PDF document text
    • http://dahluniver.ru/images/minecraft-free-android_GM479516143.pdfIn PDF document text
    • http://dahluniver.ru/images/how-to-get-minecraft-for-free-on-ps4_GM479516143.pdfIn PDF document text
    • http://dahluniver.ru/images/roblox-mobile-hack_GM431946152.pdfIn PDF document text
    • http://dahluniver.ru/images/coin-master-daily-free-spins-and-coins_GM406889139.pdfIn PDF document text
    • http://dahluniver.ru/images/lazyblox-com-free-robux_GM431946152.pdfIn PDF document text
    • http://dahluniver.ru/images/free-spins-for-coin-master-app_GM406889139.pdfIn PDF document text
    • http://dahluniver.ru/images/free-robux-for-kids_GM431946152.pdfIn PDF document text
    • http://dahluniver.ru/images/free-robux-com_GM431946152.pdfIn PDF document text
    • http://dahluniver.ru/images/free-spins-coin-master-links_GM406889139.pdfIn PDF document text
    • http://dahluniver.ru/images/how-to-get-free-robux-no-scam_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_off0000296e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x296E 22212 bytes
SHA-256: 7bb317e6e78aaa2fecb529b158f3c164cc6d69dc4266f8ec0df91c4e57095d91
font_01_sfnt_off00005a9b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5A9B 18860 bytes
SHA-256: 3add24dcf1475cac500c121069f698e62b0696d093573e8c97a80decf3f01ac7

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