Malicious PDF — malware analysis report

Static analysis result for SHA-256 ed5323643f29e6a7…

MALICIOUS

PDF

34.8 KB Created: 2021-07-06 09:26:26 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: dfc36c8232bc2486b9571bee3d9184b8 SHA-1: c840b915d024a17ee10749185140fbbddf616aa8 SHA-256: ed5323643f29e6a78def9481888b77dd7107269b2bb06f63a51caa7aa26731a3
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a critical heuristic firing for a game hack redirector lure, specifically linking to a URL that promises a 'coin master hack app'. The document body and embedded URLs reinforce this theme, aiming to trick users into visiting a malicious redirector. The ML classifier also strongly flagged this PDF as malicious.

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.tw/app/406889139/coin-master-hack-app-ios-game-hack In PDF document text
    • https://www.elearning.mitapasirsakti.sch.id/__statics/gudangsoal/files/artificial-intelligence-roblox-hack-streets-void_GM431946152.pdfIn PDF document text
    • https://www.elearning.mitapasirsakti.sch.id/__statics/gudangsoal/files/cool-roblox-avatars-for-free_GM431946152.pdfIn PDF document text
    • https://www.elearning.mitapasirsakti.sch.id/__statics/gudangsoal/files/robuxy-com-free-robux_GM431946152.pdfIn PDF document text
    • https://www.elearning.mitapasirsakti.sch.id/__statics/gudangsoal/files/free-spins-coin-master-app_GM406889139.pdfIn PDF document text
    • https://www.elearning.mitapasirsakti.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-for-free_GM431946152.pdfIn PDF document text
    • https://www.elearning.mitapasirsakti.sch.id/__statics/gudangsoal/files/free-robux-net_GM431946152.pdfIn PDF document text
    • https://www.elearning.mitapasirsakti.sch.id/__statics/gudangsoal/files/free-robux-for-kids-no-verification_GM431946152.pdfIn PDF document text
    • https://www.elearning.mitapasirsakti.sch.id/__statics/gudangsoal/files/all-free-roblox-catalog-items_GM431946152.pdfIn PDF document text
    • https://www.elearning.mitapasirsakti.sch.id/__statics/gudangsoal/files/free-robux-no-verification-2021_GM431946152.pdfIn PDF document text
    • https://www.elearning.mitapasirsakti.sch.id/__statics/gudangsoal/files/is-minecraft-free-on-pc_GM479516143.pdfIn PDF document text
    • https://www.elearning.mitapasirsakti.sch.id/__statics/gudangsoal/files/roblox-login-hack_GM431946152.pdfIn PDF document text
    • https://www.elearning.mitapasirsakti.sch.id/__statics/gudangsoal/files/roblox-free-login_GM431946152.pdfIn PDF document text
    • https://www.elearning.mitapasirsakti.sch.id/__statics/gudangsoal/files/was-minecraft-ever-free_GM479516143.pdfIn PDF document text
    • https://www.elearning.mitapasirsakti.sch.id/__statics/gudangsoal/files/minecraft-cheats-pc-2021_GM479516143.pdfIn PDF document text
    • https://www.elearning.mitapasirsakti.sch.id/__statics/gudangsoal/files/coin-master-hacks-2021_GM406889139.pdfIn PDF document text
    • https://www.elearning.mitapasirsakti.sch.id/__statics/gudangsoal/files/minecraft-windows-10-edition-hacked-client_GM479516143.pdfIn PDF document text
    • https://www.elearning.mitapasirsakti.sch.id/__statics/gudangsoal/files/we-hack-com-roblox_GM431946152.pdfIn PDF document text
    • https://www.elearning.mitapasirsakti.sch.id/__statics/gudangsoal/files/free-robux-generator-no-verification_GM431946152.pdfIn PDF document text
    • https://www.elearning.mitapasirsakti.sch.id/__statics/gudangsoal/files/free-spins-on-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://www.elearning.mitapasirsakti.sch.id/__statics/gudangsoal/files/free-robux-febuary-18-2021_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off00003313.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3313 22592 bytes
SHA-256: 7e9368d8bddce352d5e418673632187f01d02d6ef234b8890ffcc37a746f78ef
font_01_sfnt_off00006578.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6578 18180 bytes
SHA-256: 669191ced257cad8cf719fd096a029eb32cc90bb1eacba4ce7ed61202962bed4

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