Malicious PDF — malware analysis report

Static analysis result for SHA-256 aa142702aa337659…

MALICIOUS

PDF

41.9 KB Created: 2021-05-17 17:38:53 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: bc611d6321c6f231b932751551dfb0b8 SHA-1: b18e13057243ff1b9eae0477108f58da94b99c49 SHA-256: aa142702aa33765985a0289b1b07eeed9d258c95fbb0a5bc723567fad3d05955
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirectors and lures users with promises of "free Bobux" and "game hacks". The document body and embedded URLs reinforce this theme, suggesting a phishing or malware distribution attempt. While no scripts were explicitly extracted, the PDF structure and embedded URLs strongly indicate malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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 https://netcdn.xyz/app/431946152/free-bobux-game-hack In PDF document text
    • http://ivalor.fr/images/coin-master-free-spins-link-today-new_GM406889139.pdfIn PDF document text
    • http://ivalor.fr/images/roblox-gift-card-for-free_GM431946152.pdfIn PDF document text
    • http://ivalor.fr/images/roblox-free-hair-girl_GM431946152.pdfIn PDF document text
    • http://ivalor.fr/images/minecraft-bedrock-free-with-java_GM479516143.pdfIn PDF document text
    • http://ivalor.fr/images/robux-generator-no-survey_GM431946152.pdfIn PDF document text
    • http://ivalor.fr/images/rbl-gg-free-robux_GM431946152.pdfIn PDF document text
    • http://ivalor.fr/images/coin-master-hack-spins-download_GM406889139.pdfIn PDF document text
    • http://ivalor.fr/images/coinmasterdailyfreespins-com_GM406889139.pdfIn PDF document text
    • http://ivalor.fr/images/how-to-hack-coin-master-pc_GM406889139.pdfIn PDF document text
    • http://ivalor.fr/images/free-coins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://ivalor.fr/images/free-robux-hack-2021_GM431946152.pdfIn PDF document text
    • http://ivalor.fr/images/free-roebucks-no-human-verification_GM431946152.pdfIn PDF document text
    • http://ivalor.fr/images/coin-master-free-spins-cheat-codes_GM406889139.pdfIn PDF document text
    • http://ivalor.fr/images/how-long-is-the-minecraft-free-trial_GM479516143.pdfIn PDF document text
    • http://ivalor.fr/images/coin-master-village-4_GM406889139.pdfIn PDF document text
    • http://ivalor.fr/images/how-to-get-free-pets-in-adopt-me-roblox_GM431946152.pdfIn PDF document text
    • http://ivalor.fr/images/free-robux-real-2021_GM431946152.pdfIn PDF document text
    • http://ivalor.fr/images/minecraft-wurst-hacked-client_GM479516143.pdfIn PDF document text
    • http://ivalor.fr/images/coin-master-spins-hack_GM406889139.pdfIn PDF document text
    • http://ivalor.fr/images/free-daily-spin-coin-master-game_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off000046c7.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x46C7 25888 bytes
SHA-256: db7af9c4bb2ef3a256e3bfc239527e473fd0bb217a839827b178de972c98c039
font_01_sfnt_off0000820b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x820B 18012 bytes
SHA-256: 21a070aee0b4453f2f1d9cb5d53691f71c1a468eb04f2ae46e30da6bacbd91e9

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