Malicious PDF — malware analysis report

Static analysis result for SHA-256 5dc66e24eef6fb41…

MALICIOUS

PDF

27.1 KB Created: 2021-05-10 19:15:18 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: fc3cacb7d7e439d9889a4e03d498e61f SHA-1: 0962cd58e05568939b3968f9015723849ba625cb SHA-256: 5dc66e24eef6fb417aa28ca54e884fd32d8cdb3cc78ef43b4220acbde5fdf924
160 Risk Score

Malware Insights

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

The PDF contains links that redirect to malicious infrastructure, specifically promoting 'free generator / game hack' lures. The document body and embedded URLs suggest a phishing attempt to trick users into downloading further malicious content or visiting scam sites. The ML classifier also strongly indicated maliciousness.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9796

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/oprewards-points-generator-game-hack In PDF document text
    • http://geopaper.ge/images/get-robux-today_GM431946152.pdfIn PDF document text
    • http://geopaper.ge/images/robux-no-human-verification_GM431946152.pdfIn PDF document text
    • http://geopaper.ge/images/coin-master-34-6-hack_GM406889139.pdfIn PDF document text
    • http://geopaper.ge/images/roblox-lovenet_GM431946152.pdfIn PDF document text
    • http://geopaper.ge/images/free-roblox-groups-with-funds_GM431946152.pdfIn PDF document text
    • http://geopaper.ge/images/free-spins-coin-master-links-twitter_GM406889139.pdfIn PDF document text
    • http://geopaper.ge/images/roblox-sexually-abused_GM431946152.pdfIn PDF document text
    • http://geopaper.ge/images/coin-master-free-daily-spins-link_GM406889139.pdfIn PDF document text
    • http://geopaper.ge/images/free-robux-no-apps_GM431946152.pdfIn PDF document text
    • http://geopaper.ge/images/give-me-free-robux_GM431946152.pdfIn PDF document text
    • http://geopaper.ge/images/roblox-hack-me_GM431946152.pdfIn PDF document text
    • http://geopaper.ge/images/coin-game_GM406889139.pdfIn PDF document text
    • http://geopaper.ge/images/roblox-online-free-no-download_GM431946152.pdfIn PDF document text
    • http://geopaper.ge/images/how-to-get-free-robux-on-computer_GM431946152.pdfIn PDF document text
    • http://geopaper.ge/images/free-multiplayer-minecraft-server_GM479516143.pdfIn PDF document text
    • http://geopaper.ge/images/free-spin-coin-master-game_GM406889139.pdfIn PDF document text
    • http://geopaper.ge/images/free-robux-websites-2021_GM431946152.pdfIn PDF document text
    • http://geopaper.ge/images/free-robux-place_GM431946152.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
font_00_sfnt_off00001dcd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1DCD 19396 bytes
SHA-256: e0820a5fc895f4852c486576ff33d00eb445b550568038d747c194aaa4ef03ce
font_01_sfnt_off000046a1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x46A1 18464 bytes
SHA-256: 1f8e609d6837fbe9d541e60b2038981984e2889c8e8d6f72a613ebd55477316c

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