Malicious PDF — malware analysis report

Static analysis result for SHA-256 3eb01c7c86013914…

MALICIOUS

PDF

32.8 KB Created: 2021-06-25 17:43:30 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 2b4a1e119a7bf80b8d9071b71649faca SHA-1: 9c2f0d0eadddb845944b1e4e6c29d40e5d2169b4 SHA-256: 3eb01c7c8601391412adacf41f7f270b84f46bdfb1b2efe11cabd346da2d52d3
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains embedded links that redirect to malicious infrastructure, specifically promoting game hacks and free in-game currency. The ML classifier also flagged this sample as malicious. The primary lure appears to be related to Roblox and Coin Master, aiming to trick users into visiting potentially harmful sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9824

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-cheat-codes-builders-club-game-hack In PDF document text
    • https://perpustakaan.itda.ac.id/repository/free-free-robux_GM431946152.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/free-robux-hack-sheet_GM431946152.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/coin-master-daily-free-rewards_GM406889139.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/free-gold-cards-for-coin-master_GM406889139.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/como-hackear-el-juego-coin-master_GM406889139.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/roblox-test-serve-ronline-free-obc_GM431946152.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/how-to-get-free-robux-no-verification-2021_GM431946152.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/how-to-get-free-items-in-the-roblox-catalog_GM431946152.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/how-to-get-free-robux-mobile-root-needef_GM431946152.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/roblox-free-iland-royal_GM431946152.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/roblox-cheat-engine-swordburst-online_GM431946152.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/unlimited-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/how-do-you-get-free-robux_GM431946152.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/how-to-install-minecraft-for-free_GM479516143.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/free-robux-no-scam_GM431946152.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/free-tiktok-views-no-verification_GM835599320.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/hack-coin-master-without-human-verification_GM406889139.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/roblox-jailbreak-how-to-get-free-radio-deutsch_GM431946152.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/free-spins-and-coins-blogspot-coin-master_GM406889139.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/free-candy-hack-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_off00002ad8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2AD8 21896 bytes
SHA-256: 0fcb0233302ebeee72b084967f51d042d06c2771d4af9ff7eb30c9532135832c
font_01_sfnt_off00005b17.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5B17 19192 bytes
SHA-256: 76318be986f327da279d8c732ffa7b2f07907c4035cbd8a2fb7614c355df3ba0

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