Malicious PDF — malware analysis report

Static analysis result for SHA-256 3245a2cacea619c2…

MALICIOUS

PDF

35.9 KB Created: 2021-06-20 15:21:06 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: d7d7c51108ba39c843097d29fdb78a7a SHA-1: 57683c715094a0cc76f3723480a911967942ea17 SHA-256: 3245a2cacea619c2fcfae003499d303178c83bea30cfac224909f08b503345b8
160 Risk Score

Malware Insights

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

The PDF document contains multiple links to what are identified as malicious redirectors, disguised as 'free generators' or 'game hacks' for popular games like Roblox. The ML classifier strongly flagged this PDF as malicious. The embedded URLs likely serve as a lure to download further malicious content or redirect to phishing sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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.co/app/431946152/how-to-create-clothes-on-roblox-free-game-hack In PDF document text
    • http://www.clooetherattorneys.com/uploaded_files/userfiles/files/but-link-says-free-robux_GM431946152.pdfIn PDF document text
    • http://www.clooetherattorneys.com/uploaded_files/userfiles/files/roblox-free-modeler_GM431946152.pdfIn PDF document text
    • http://www.clooetherattorneys.com/uploaded_files/userfiles/files/how-do-i-get-free-robux_GM431946152.pdfIn PDF document text
    • http://www.clooetherattorneys.com/uploaded_files/userfiles/files/pubg-uc-redeem-code-today_GM1330123889.pdfIn PDF document text
    • http://www.clooetherattorneys.com/uploaded_files/userfiles/files/minecraft-hacks_GM479516143.pdfIn PDF document text
    • http://www.clooetherattorneys.com/uploaded_files/userfiles/files/how-to-duplicate-coin-master-spin-hack_GM406889139.pdfIn PDF document text
    • http://www.clooetherattorneys.com/uploaded_files/userfiles/files/coin-master-34-4-hack-download_GM406889139.pdfIn PDF document text
    • http://www.clooetherattorneys.com/uploaded_files/userfiles/files/roblox-how-to-get-free-membership_GM431946152.pdfIn PDF document text
    • http://www.clooetherattorneys.com/uploaded_files/userfiles/files/cheats-roblox-da-hood_GM431946152.pdfIn PDF document text
    • http://www.clooetherattorneys.com/uploaded_files/userfiles/files/how-to-get-roblox-premium-for-free_GM431946152.pdfIn PDF document text
    • http://www.clooetherattorneys.com/uploaded_files/userfiles/files/coin-master-hack-app-ios-download_GM406889139.pdfIn PDF document text
    • http://www.clooetherattorneys.com/uploaded_files/userfiles/files/how-to-get-free-hair-on-roblox_GM431946152.pdfIn PDF document text
    • http://www.clooetherattorneys.com/uploaded_files/userfiles/files/free-spins-coin-master-unlimited_GM406889139.pdfIn PDF document text
    • http://www.clooetherattorneys.com/uploaded_files/userfiles/files/how-to-get-free-robux-fast-and-easy_GM431946152.pdfIn PDF document text
    • http://www.clooetherattorneys.com/uploaded_files/userfiles/files/coin-master-free-spins-link-today-facebook_GM406889139.pdfIn PDF document text
    • http://www.clooetherattorneys.com/uploaded_files/userfiles/files/coinmasterfree_GM406889139.pdfIn PDF document text
    • http://www.clooetherattorneys.com/uploaded_files/userfiles/files/how-to-get-free-robux-on-roblox-2021_GM431946152.pdfIn PDF document text
    • http://www.clooetherattorneys.com/uploaded_files/userfiles/files/free-robux-hack-generator_GM431946152.pdfIn PDF document text
    • http://www.clooetherattorneys.com/uploaded_files/userfiles/files/free-robux-for-kids-no-verification_GM431946152.pdfIn PDF document text
    • http://www.clooetherattorneys.com/uploaded_files/userfiles/files/coin-master-daily-free-spins-link-haktuts_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
font_00_sfnt_off000033c5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x33C5 22916 bytes
SHA-256: f811aa4d188b721034dda20eb7f6943d728c6d8e2eb5bf12d0f98da0373d168d
font_01_sfnt_off0000675d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x675D 19084 bytes
SHA-256: a51a0382f94900913242cffa81b3c669b7b897a4b41b8bc6b4bc98251904366c

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