Malicious PDF — malware analysis report

Static analysis result for SHA-256 9ad7860abacfcb32…

MALICIOUS

PDF

41.9 KB Created: 2021-05-15 07:01:26 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: adb72710f89ebeb205acc816e24c58e9 SHA-1: da9e6bf7844c994483de6e5a2739ff4d007eadc1 SHA-256: 9ad7860abacfcb327a7c73fa0fd7f201e2cacc37887dd6a513afb36c02c5e544
168 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains embedded URLs that lead to a known malicious redirector, disguised as a 'game hack' generator. The document body and heuristics indicate a lure designed to trick users into clicking these links, likely to download further malware or lead them to phishing sites. No scripts were extracted, but the presence of malicious redirectors and the lure suggest a phishing or malware distribution campaign.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

Heuristics 5

  • 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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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/what-do-points-do-in-roblox-game-hack In PDF document text
    • http://balkanin.com/images/coin-master-free-spin-and-coin-links_GM406889139.pdfIn PDF document text
    • http://balkanin.com/images/give-free-robux_GM431946152.pdfIn PDF document text
    • http://balkanin.com/images/totally-free-coin-master-spins-2021_GM406889139.pdfIn PDF document text
    • http://balkanin.com/images/coin-master-free-spins-links-2021_GM406889139.pdfIn PDF document text
    • http://balkanin.com/images/roblox-hack_GM431946152.pdfIn PDF document text
    • http://balkanin.com/images/coin-master-latest-mod-apk-free-download_GM406889139.pdfIn PDF document text
    • http://balkanin.com/images/how-to-play-minecraft-for-free-on-computer_GM479516143.pdfIn PDF document text
    • http://balkanin.com/images/robux-prices_GM431946152.pdfIn PDF document text
    • http://balkanin.com/images/daily-free-spin-link-in-coin-master_GM406889139.pdfIn PDF document text
    • http://balkanin.com/images/flip-master-free-coins_GM406889139.pdfIn PDF document text
    • http://balkanin.com/images/free-multiplayer-minecraft-server_GM479516143.pdfIn PDF document text
    • http://balkanin.com/images/coin-master-daily-gift-free-spins-and-coins-link_GM406889139.pdfIn PDF document text
    • http://balkanin.com/images/coin-master-hack-apk-android_GM406889139.pdfIn PDF document text
    • http://balkanin.com/images/how-can-i-get-free-robux_GM431946152.pdfIn PDF document text
    • http://balkanin.com/images/free-robux-group-payouts_GM431946152.pdfIn PDF document text
    • http://balkanin.com/images/free-roblox-wings_GM431946152.pdfIn PDF document text
    • http://balkanin.com/images/best-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://balkanin.com/images/coin-master-links-for-free-spins_GM406889139.pdfIn PDF document text
    • http://balkanin.com/images/how-to-get-free-robux-without-offers_GM431946152.pdfIn PDF document text
    • http://balkanin.com/images/free-minecraft-skin-packs_GM479516143.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
stream_003_off000047de.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x47DE 24280 bytes
SHA-256: 16102af8f77f7d345cd97ef1a5b7851b86b14aca7cd6bc32be38a548aff14f4b
font_01_sfnt_off00007f82.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7F82 18920 bytes
SHA-256: b7b86ed324264c44522b23f0c2231fa68c55c0eee51ac73e12797fae7dfada6e

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