Malicious PDF — malware analysis report

Static analysis result for SHA-256 a96616fbb1f20740…

MALICIOUS

PDF

43.1 KB Created: 2021-05-13 08:03:38 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 3eb17685cc78f05786e41270ba87652b SHA-1: 34ce32900ceb68959450dcdeea9a823657948a80 SHA-256: a96616fbb1f20740d09b88ba30d36da3fe9f19eca47e4bde3a030bf6db292690
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links that redirect to known malicious infrastructure, specifically promoting 'game hacks' and 'generators'. The heuristic firings indicate that the PDF is designed to lure users into clicking these links, which likely leads to further malicious content or downloads. No scripts were extracted, but the embedded URLs and redirector heuristics strongly suggest a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9969

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/free-spin-coin-master-game-game-hack In PDF document text
    • https://www.iseas.com/uploaded_files/userfiles/files/coin-master-hack-2021-free_GM406889139.pdfIn PDF document text
    • https://www.iseas.com/uploaded_files/userfiles/files/how-to-get-free-robux-hack-2021_GM431946152.pdfIn PDF document text
    • https://www.iseas.com/uploaded_files/userfiles/files/how-to-hack-roblox_GM431946152.pdfIn PDF document text
    • https://www.iseas.com/uploaded_files/userfiles/files/coin-master-free-spins-usa-2021_GM406889139.pdfIn PDF document text
    • https://www.iseas.com/uploaded_files/userfiles/files/free-robux-human-verification_GM431946152.pdfIn PDF document text
    • https://www.iseas.com/uploaded_files/userfiles/files/coinmaster-hack_GM406889139.pdfIn PDF document text
    • https://www.iseas.com/uploaded_files/userfiles/files/free-rare-cards-for-coin-master_GM406889139.pdfIn PDF document text
    • https://www.iseas.com/uploaded_files/userfiles/files/how-to-get-free-robux-for-kids_GM431946152.pdfIn PDF document text
    • https://www.iseas.com/uploaded_files/userfiles/files/minecraft-pe-hack-client_GM479516143.pdfIn PDF document text
    • https://www.iseas.com/uploaded_files/userfiles/files/get-free-robux-info_GM431946152.pdfIn PDF document text
    • https://www.iseas.com/uploaded_files/userfiles/files/coin-master-free-fire_GM406889139.pdfIn PDF document text
    • https://www.iseas.com/uploaded_files/userfiles/files/free-spins-for-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://www.iseas.com/uploaded_files/userfiles/files/coin-master-free-spins-and-coins-blogspot_GM406889139.pdfIn PDF document text
    • https://www.iseas.com/uploaded_files/userfiles/files/safe-hack-for-coin-master-android_GM406889139.pdfIn PDF document text
    • https://www.iseas.com/uploaded_files/userfiles/files/how-to-get-free-robux-on-mobile_GM431946152.pdfIn PDF document text
    • https://www.iseas.com/uploaded_files/userfiles/files/free-spins-and-coins-coin-master-2021-link_GM406889139.pdfIn PDF document text
    • https://www.iseas.com/uploaded_files/userfiles/files/free-coins-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://www.iseas.com/uploaded_files/userfiles/files/free-coin-master-game_GM406889139.pdfIn PDF document text
    • https://www.iseas.com/uploaded_files/userfiles/files/minecraft-pvp-hacks_GM479516143.pdfIn PDF document text
    • https://www.iseas.com/uploaded_files/userfiles/files/coin-master-free-spins-link-2021_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
stream_003_off00004cd1.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4CD1 25100 bytes
SHA-256: 15a3621aad08ceb4f689377301dfb719aabddab3519e27a28356abb068f8d76b
font_01_sfnt_off000086e8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x86E8 18148 bytes
SHA-256: 05f474a5dd778b1a8f82bb3f3194e0f6909204339d3dcef5442e6da61b36e890