Malicious PDF — malware analysis report

Static analysis result for SHA-256 065338c39fa12c9f…

MALICIOUS

PDF

34.0 KB Created: 2021-06-20 05:20:19 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: b78c7b0f0e4836c7e341e2e606efaac4 SHA-1: bd2e687ea16b96620af150c3f9854d511db7ff8b SHA-256: 065338c39fa12c9fc7220a638ff67d5bdedb69dd8b4a8123aa8ecfca93e235bd
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a lure of game hacks and free in-game currency to trick users into clicking malicious links. The primary link directs to a known malicious redirector infrastructure, likely serving as a gateway to further malicious content or exploits. The document body and embedded URLs reinforce this lure, aiming to exploit user interest in popular games like Roblox and Coin Master.

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-plants-vs-zombies-battlegorunds-hack-game-hack In PDF document text
    • http://pustaka.ust.ac.id/repository/pasos-para-hackear-coins-master_GM406889139.pdfIn PDF document text
    • http://pustaka.ust.ac.id/repository/coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://pustaka.ust.ac.id/repository/www-roblox-free-robux_GM431946152.pdfIn PDF document text
    • http://pustaka.ust.ac.id/repository/get-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://pustaka.ust.ac.id/repository/green-scarfs-roblox-for-free_GM431946152.pdfIn PDF document text
    • http://pustaka.ust.ac.id/repository/free-promo-codes-for-robux_GM431946152.pdfIn PDF document text
    • http://pustaka.ust.ac.id/repository/coin-master-free-cards-link-2021_GM406889139.pdfIn PDF document text
    • http://pustaka.ust.ac.id/repository/coin-master-free-spins-and-coins-haktuts_GM406889139.pdfIn PDF document text
    • http://pustaka.ust.ac.id/repository/free-robux-generator-2021_GM431946152.pdfIn PDF document text
    • http://pustaka.ust.ac.id/repository/adopt-me-roblox-hack-place_GM431946152.pdfIn PDF document text
    • http://pustaka.ust.ac.id/repository/rewards-roblox_GM431946152.pdfIn PDF document text
    • http://pustaka.ust.ac.id/repository/free-minecraft-resource-packs_GM479516143.pdfIn PDF document text
    • http://pustaka.ust.ac.id/repository/free-spin-online-tool-coin-master_GM406889139.pdfIn PDF document text
    • http://pustaka.ust.ac.id/repository/get-free-robux-by-entering-thid-birthday_GM431946152.pdfIn PDF document text
    • http://pustaka.ust.ac.id/repository/roblox-free-shorts_GM431946152.pdfIn PDF document text
    • http://pustaka.ust.ac.id/repository/free-robux-groups-2021_GM431946152.pdfIn PDF document text
    • http://pustaka.ust.ac.id/repository/roblox-robux-free-2021_GM431946152.pdfIn PDF document text
    • http://pustaka.ust.ac.id/repository/hcbb-roblox-hack_GM431946152.pdfIn PDF document text
    • http://pustaka.ust.ac.id/repository/how-to-become-a-roblox-hacker-free-on-pc_GM431946152.pdfIn PDF document text
    • http://pustaka.ust.ac.id/repository/free-accounts-with-bigger-head-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_off00002d26.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2D26 21788 bytes
SHA-256: d9e480cfebce29388632aba0b2add9938dc0ea82a4f77c38d6d4e9d7c513aafb
font_01_sfnt_off00005d4a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5D4A 19836 bytes
SHA-256: 564b4d8222e824ac8bdb35924875c40e4e23f284fa668f0994ea30c2218d4455

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