Malicious PDF — malware analysis report

Static analysis result for SHA-256 3282071d1efa3dee…

MALICIOUS

PDF

36.0 KB Created: 2021-06-28 10:10:13 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 666d50a6f2e33d27daf6c0e93557d16b SHA-1: 577d7ab0696be120cbe63ba03909107c9b3f7e22 SHA-256: 3282071d1efa3deec4c7136bb63b50c8c8f1ba3529fbb255a2d270028033608b
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to known malicious redirectors and infrastructure, disguised as offers for free game hacks and currency. The document body and embedded URLs strongly suggest a phishing or scam attempt to lure users to malicious sites. No scripts were extracted, but the presence of malicious links and the lure indicate a high likelihood of further payload delivery or credential harvesting.

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-get-game-pass-for-free-roblox-youtube-game-hack In PDF document text
    • http://kierowcyhgv.uk/images/roblox-hack-using-cheat-engine_GM431946152.pdfIn PDF document text
    • https://kierowcyhgv.uk/images/info-roblox-com-robux_GM431946152.pdfIn PDF document text
    • https://kierowcyhgv.uk/images/how-to-hack-any-roblox-account_GM431946152.pdfIn PDF document text
    • https://kierowcyhgv.uk/images/free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://kierowcyhgv.uk/images/free-minecraft-skin-maker_GM479516143.pdfIn PDF document text
    • https://kierowcyhgv.uk/images/coin-master-free-spin-today_GM406889139.pdfIn PDF document text
    • http://kierowcyhgv.uk/images/roblox-hack-no-human-verification-2021-android_GM431946152.pdfIn PDF document text
    • https://kierowcyhgv.uk/images/coin-master-hack-https-coinms-net_GM406889139.pdfIn PDF document text
    • https://kierowcyhgv.uk/images/free-robux-generator-no-verification_GM431946152.pdfIn PDF document text
    • https://kierowcyhgv.uk/images/free-robux-no-apps_GM431946152.pdfIn PDF document text
    • http://kierowcyhgv.uk/images/hacked-games-on-roblox_GM431946152.pdfIn PDF document text
    • http://kierowcyhgv.uk/images/roblox-hack-no-human-verification-ios_GM431946152.pdfIn PDF document text
    • https://kierowcyhgv.uk/images/spin-links-for-coin-master_GM406889139.pdfIn PDF document text
    • https://kierowcyhgv.uk/images/how-do-you-get-free-food-in-coin-master_GM406889139.pdfIn PDF document text
    • https://kierowcyhgv.uk/images/free-coin-master-generator_GM406889139.pdfIn PDF document text
    • https://kierowcyhgv.uk/images/how-to-hack-coin-master-in-pc_GM406889139.pdfIn PDF document text
    • https://kierowcyhgv.uk/images/free-roblox-codes_GM431946152.pdfIn PDF document text
    • https://kierowcyhgv.uk/images/minecraft-cheats-switch_GM479516143.pdfIn PDF document text
    • https://kierowcyhgv.uk/images/coin-master-free-spins-and-coins-blogspot_GM406889139.pdfIn PDF document text
    • http://kierowcyhgv.uk/images/free-daw-2-group-roblox_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_off000033f2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x33F2 22500 bytes
SHA-256: db8d49943f990c40c958ad2c1697e618a54a21892a0563d17f11ca42e2499b49
font_01_sfnt_off0000664a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x664A 19636 bytes
SHA-256: 5a1749504461d5c063771d0faefe8894ad60e9bb821b89d05f15ac1070748fea

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