Malicious PDF — malware analysis report

Static analysis result for SHA-256 36211dad3a30d2e5…

MALICIOUS

PDF

45.1 KB Created: 2021-06-03 07:07:11 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: a66ecc3ec81035a5ff3126bd79d9ba32 SHA-1: 7a28a8ef6eb6bd11ef92421790a90a82165db5b7 SHA-256: 36211dad3a30d2e5609ad70e736a87df06874c21df3b0160aeb1d748be36097e
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The ML classifier strongly flagged this PDF as malicious. The document contains an embedded URI pointing to a suspicious URL, and multiple other URLs are present within the document body and as clickable links. These elements suggest the document is designed to trick the user into downloading a malicious file, likely related to game hacks or cheats.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9865

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.online/app/406889139/ac-market-coin-master-hack-game-hack In PDF document text
    • http://perpus.unpam.ac.id/repository/free-coin-master-spins-2021_GM406889139.pdfIn PDF document text
    • http://perpus.unpam.ac.id/repository/free-robux-easy_GM431946152.pdfIn PDF document text
    • http://perpus.unpam.ac.id/repository/free-robux-websites-no-human-verification_GM431946152.pdfIn PDF document text
    • http://perpus.unpam.ac.id/repository/free-things-on-roblox_GM431946152.pdfIn PDF document text
    • http://perpus.unpam.ac.id/repository/arsenal-hacks-roblox_GM431946152.pdfIn PDF document text
    • http://perpus.unpam.ac.id/repository/how-to-download-wurst_GM479516143.pdfIn PDF document text
    • http://perpus.unpam.ac.id/repository/www-coinmaster_GM406889139.pdfIn PDF document text
    • http://perpus.unpam.ac.id/repository/free-gifts-coin-master_GM406889139.pdfIn PDF document text
    • http://perpus.unpam.ac.id/repository/coin-master-hack-spins-2021_GM406889139.pdfIn PDF document text
    • http://perpus.unpam.ac.id/repository/how-to-hack-roblox-accounts-2021-easy_GM431946152.pdfIn PDF document text
    • http://perpus.unpam.ac.id/repository/coinmaster-rewards_GM406889139.pdfIn PDF document text
    • http://perpus.unpam.ac.id/repository/mangocheats-com-hack-coin-master-cheat_GM406889139.pdfIn PDF document text
    • http://perpus.unpam.ac.id/repository/how-to-hack-roblox-accounts-2021_GM431946152.pdfIn PDF document text
    • http://perpus.unpam.ac.id/repository/minecraft-free-online_GM479516143.pdfIn PDF document text
    • http://perpus.unpam.ac.id/repository/free-roblox-executor-no-key_GM431946152.pdfIn PDF document text
    • http://perpus.unpam.ac.id/repository/coin-master-game-free_GM406889139.pdfIn PDF document text
    • http://perpus.unpam.ac.id/repository/free-spins-coin-master-march-2021_GM406889139.pdfIn PDF document text
    • http://perpus.unpam.ac.id/repository/bloxawards-com-earn-free-robux_GM431946152.pdfIn PDF document text
    • http://perpus.unpam.ac.id/repository/how-to-get-free-skins-in-minecraft_GM479516143.pdfIn PDF document text
    • http://perpus.unpam.ac.id/repository/daily-free-spins-on-coin-master_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_004_off00005223.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5223 27888 bytes
SHA-256: 42cb0df00a9df35bf3ca2e59bd6a6f1d45f663cecaedc352f6b924e104b0bbd9
font_01_sfnt_off00008f9a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8F9A 17716 bytes
SHA-256: a2eac6e8880e439e1074c72625681386097f2e1a750c353688b11f9695167b3c

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