Malicious PDF — malware analysis report

Static analysis result for SHA-256 a3dd48ef6b78fa7e…

MALICIOUS

PDF

46.7 KB Created: 2021-05-14 07:49:14 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 6ff6d1ad7ef84215b8f9bce4416aa0b0 SHA-1: 83961ef79c056e89bb27ae161a35fa0ec85e35b5 SHA-256: a3dd48ef6b78fa7e21f29a6d5836418799ddb269483721e75f0672ea92e7c6e7
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links designed to lure users into clicking on them by promising game hacks or free in-game currency. These links redirect to malicious infrastructure, specifically identified by the 'PDF_MALICIOUS_REDIRECTOR_LINK' heuristic. The ML classifier also flagged this PDF as malicious. The document body and embedded URLs suggest a phishing attempt related to popular games.

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/406889139/coin-master-hacks-free-spins-game-hack In PDF document text
    • http://chartsmart.com.au/images/free-spin-link_GM406889139.pdfIn PDF document text
    • http://chartsmart.com.au/images/coin-master-free-attack-hack_GM406889139.pdfIn PDF document text
    • http://chartsmart.com.au/images/get-free-coins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://chartsmart.com.au/images/coin-master-hack-no-human-verification_GM406889139.pdfIn PDF document text
    • http://chartsmart.com.au/images/how-to-play-minecraft-for-free-on-pc_GM479516143.pdfIn PDF document text
    • http://chartsmart.com.au/images/how-to-hack-a-roblox-account-2021_GM431946152.pdfIn PDF document text
    • http://chartsmart.com.au/images/minecraft-pocket-apk_GM479516143.pdfIn PDF document text
    • http://chartsmart.com.au/images/complete-offers-for-robux_GM431946152.pdfIn PDF document text
    • http://chartsmart.com.au/images/how-to-change-username-on-roblox-for-free_GM431946152.pdfIn PDF document text
    • http://chartsmart.com.au/images/get-robux-today_GM431946152.pdfIn PDF document text
    • http://chartsmart.com.au/images/roblox-free-robux-no-human-verification_GM431946152.pdfIn PDF document text
    • http://chartsmart.com.au/images/minecraft-pe-texture-packs-free-download_GM479516143.pdfIn PDF document text
    • http://chartsmart.com.au/images/how-to-hack-roblox-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://chartsmart.com.au/images/free-robux-gift-card-codes_GM431946152.pdfIn PDF document text
    • http://chartsmart.com.au/images/minecraft-free_GM479516143.pdfIn PDF document text
    • http://chartsmart.com.au/images/minecraft-multiplayer-free_GM479516143.pdfIn PDF document text
    • http://chartsmart.com.au/images/coin-master-facebook-hack_GM406889139.pdfIn PDF document text
    • http://chartsmart.com.au/images/microsoft-free-robux_GM431946152.pdfIn PDF document text
    • http://chartsmart.com.au/images/how-to-get-free-robux-without-downloading-apps_GM431946152.pdfIn PDF document text
    • http://chartsmart.com.au/images/free-robux-real-2021_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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004afd.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4AFD 24776 bytes
SHA-256: d3da4a31c1a0ad6902eee7b35c7265174b8830066cf9728768d20dd0dc5ab047
font_01_sfnt_off000082fc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x82FC 7332 bytes
SHA-256: d811e0aca85f3b94c42cd1240eec68b8eb378f3d8be5e408d3f6abd0f11f834d
font_02_sfnt_off00009514.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9514 18056 bytes
SHA-256: 12d79a7ddbb75c7a0854102822057d5441bee2ca4a20c79f8211a3d0b9a1f375

Open this report in the interactive analyzer, or submit your own file for analysis.