Malicious PDF — malware analysis report

Static analysis result for SHA-256 0f66e024a30d4d70…

MALICIOUS

PDF

35.1 KB Created: 2021-06-29 22:58:17 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 7f0b23ca986f68d451fb405af65d6029 SHA-1: 580343c91b6f93ef0f5a0c24f0644426ce491d4d SHA-256: 0f66e024a30d4d7079eca1f9a03a9e4ace22ff9919351e7941f1010006edfea3
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains embedded links that lead to a known malicious redirector, disguised as a generator for game hacks. The document body and heuristics indicate a lure for free game cheats, specifically targeting Roblox and Coin Master. No scripts were extracted, but the primary function appears to be directing users to malicious infrastructure.

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/roblox-hack-apk-no-survey-game-hack In PDF document text
    • https://stmik-kharisma.ac.id/perpustakaan/repository/coin-master-free-link_GM406889139.pdfIn PDF document text
    • https://stmik-kharisma.ac.id/perpustakaan/repository/roblox-arsenal-hack_GM431946152.pdfIn PDF document text
    • https://stmik-kharisma.ac.id/perpustakaan/repository/coin-master-free-spins-iphone_GM406889139.pdfIn PDF document text
    • https://stmik-kharisma.ac.id/perpustakaan/repository/roblox-game-for-free-online-in-toysrus_GM431946152.pdfIn PDF document text
    • https://stmik-kharisma.ac.id/perpustakaan/repository/hack-injector-roblox-granny_GM431946152.pdfIn PDF document text
    • https://stmik-kharisma.ac.id/perpustakaan/repository/coin-master-free-spins-and-coins-blogspot_GM406889139.pdfIn PDF document text
    • https://stmik-kharisma.ac.id/perpustakaan/repository/best-hacker-ever-roblox_GM431946152.pdfIn PDF document text
    • https://stmik-kharisma.ac.id/perpustakaan/repository/free-robux-no-verification-no-download-2021_GM431946152.pdfIn PDF document text
    • https://stmik-kharisma.ac.id/perpustakaan/repository/free-robux-com-2021_GM431946152.pdfIn PDF document text
    • https://stmik-kharisma.ac.id/perpustakaan/repository/how-to-hack-robux-on-android_GM431946152.pdfIn PDF document text
    • https://stmik-kharisma.ac.id/perpustakaan/repository/hacks-for-money-for-sunset-city-on-roblox_GM431946152.pdfIn PDF document text
    • https://stmik-kharisma.ac.id/perpustakaan/repository/freemobile360-info-free-robux_GM431946152.pdfIn PDF document text
    • https://stmik-kharisma.ac.id/perpustakaan/repository/free-robux-hack-us_GM431946152.pdfIn PDF document text
    • https://stmik-kharisma.ac.id/perpustakaan/repository/coin-master-free-spins-hack-download_GM406889139.pdfIn PDF document text
    • https://stmik-kharisma.ac.id/perpustakaan/repository/roblox-super-noob-obby-cheats_GM431946152.pdfIn PDF document text
    • https://stmik-kharisma.ac.id/perpustakaan/repository/how-to-get-free-robux-generator_GM431946152.pdfIn PDF document text
    • https://stmik-kharisma.ac.id/perpustakaan/repository/emergency-response-liberty-county-roblox-free_GM431946152.pdfIn PDF document text
    • https://stmik-kharisma.ac.id/perpustakaan/repository/coin-master-link-today_GM406889139.pdfIn PDF document text
    • https://stmik-kharisma.ac.id/perpustakaan/repository/free-robux-easy-hack_GM431946152.pdfIn PDF document text
    • https://stmik-kharisma.ac.id/perpustakaan/repository/how-to-get-free-roebucks-on-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_off0000316f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x316F 22440 bytes
SHA-256: 39749f95ceb882d35205842a5b369f5211d86eb1a0c67bf53c2805cd08b28fbc
font_01_sfnt_off00006378.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6378 19268 bytes
SHA-256: 87ff195309edeee584828d232d4e2b21d26c67adcc676e3ecfa3c48530accf35

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