Malicious PDF — malware analysis report

Static analysis result for SHA-256 f046ddfc27d2cab1…

MALICIOUS

PDF

46.4 KB Created: 2021-05-11 19:38:34 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: a233baae573a6962ee307fbb248cd61c SHA-1: 6aeaf1b60630762d2a54db637167f175333bd629 SHA-256: f046ddfc27d2cab15c355000133a1472336367379748a4af80e194b3bc4a0de6
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to redirector infrastructure, specifically advertising free game-related content like 'Minecraft Addons' and 'Coin Master Hack'. The heuristic firings indicate these links lead to known malicious redirectors and are designed as a lure. While no scripts were explicitly extracted, the PDF structure and embedded URLs strongly suggest a phishing or scam attempt, likely to deliver a second-stage payload or lead to a credential harvesting page.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8948

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/479516143/free-minecraft-addons-game-hack In PDF document text
    • http://perpus.ar-rum.ac.id//repository/coin-master-hack-without-human-verification-2021_GM406889139.pdfIn PDF document text
    • http://perpus.ar-rum.ac.id//repository/free-robux-scam_GM431946152.pdfIn PDF document text
    • http://perpus.ar-rum.ac.id//repository/getrobux-now_GM431946152.pdfIn PDF document text
    • http://perpus.ar-rum.ac.id//repository/coin-master-free-spins-link-today-twitter_GM406889139.pdfIn PDF document text
    • http://perpus.ar-rum.ac.id//repository/free-spins-coins-coin-master_GM406889139.pdfIn PDF document text
    • http://perpus.ar-rum.ac.id//repository/daily-coin-master-free-spin-link-facebook_GM406889139.pdfIn PDF document text
    • http://perpus.ar-rum.ac.id//repository/free-bedrock-minecraft_GM479516143.pdfIn PDF document text
    • http://perpus.ar-rum.ac.id//repository/descargar-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://perpus.ar-rum.ac.id//repository/coin-master-free-spins-apk_GM406889139.pdfIn PDF document text
    • http://perpus.ar-rum.ac.id//repository/how-to-earn-robux_GM431946152.pdfIn PDF document text
    • http://perpus.ar-rum.ac.id//repository/coin-master-daily-free-spin-app_GM406889139.pdfIn PDF document text
    • http://perpus.ar-rum.ac.id//repository/master-coin-free-spin-daily_GM406889139.pdfIn PDF document text
    • http://perpus.ar-rum.ac.id//repository/coin-master-free-coins_GM406889139.pdfIn PDF document text
    • http://perpus.ar-rum.ac.id//repository/how-to-get-800-robux-for-free_GM431946152.pdfIn PDF document text
    • http://perpus.ar-rum.ac.id//repository/how-to-get-free-robux-by-playing-games_GM431946152.pdfIn PDF document text
    • http://perpus.ar-rum.ac.id//repository/coin-master-hack-no-human-verification-2021_GM406889139.pdfIn PDF document text
    • http://perpus.ar-rum.ac.id//repository/how-to-get-free-robux-on-iphone_GM431946152.pdfIn PDF document text
    • http://perpus.ar-rum.ac.id//repository/best-free-robux-sites_GM431946152.pdfIn PDF document text
    • http://perpus.ar-rum.ac.id//repository/roblox-piano-hack_GM431946152.pdfIn PDF document text
    • http://perpus.ar-rum.ac.id//repository/robux-free-online_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off0000488c.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x488C 28908 bytes
SHA-256: d62f83ea3c37f51583e0949707f7fc1deb40115bb7dbca762c97186f1d3794aa
font_01_sfnt_off00008a39.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8A39 2892 bytes
SHA-256: c2578a292634a901613c1dd9f9883dd4930e6811e59ae03d696f263e56ea17b4
font_02_sfnt_off00009423.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9423 17884 bytes
SHA-256: 2acb4cd1bca1b5a723691e5edbd5eaf48ec188cda9d27986775bd20f5f6dc65a

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