Malicious PDF — malware analysis report

Static analysis result for SHA-256 fc0eebdbcf3146d6…

MALICIOUS

PDF

32.9 KB Created: 2021-07-09 02:45:17 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: cdc4916575155749d27e3c045f3b8e92 SHA-1: 751db3f2cf6a12adf792b3d6d610beed87caa47b SHA-256: fc0eebdbcf3146d65885df7fedb6818c62b55b49ae28038ed23729c04d383ebb
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded links that redirect to malicious infrastructure, specifically promoting 'free generator' or 'game hack' lures. The primary redirector URL identified is http://netcdn.tw/app/835599320/how-to-get-free-tiktok-likes-game-hack. This pattern suggests a phishing or scam campaign designed to trick users into visiting potentially harmful sites. No scripts were extracted, but the embedded URLs and the nature of the lures strongly indicate a malicious intent.

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/835599320/how-to-get-free-tiktok-likes-game-hack In PDF document text
    • http://apartmani-mestrovic-krk.hr/files/minecraft-bedrock-hacks_GM479516143.pdfIn PDF document text
    • https://www.apartmani-mestrovic-krk.hr/files/hack-roblox-jailbreak-2021-noclip_GM431946152.pdfIn PDF document text
    • https://www.apartmani-mestrovic-krk.hr/files/any-working-robux-hacks_GM431946152.pdfIn PDF document text
    • http://apartmani-mestrovic-krk.hr/files/banning-hacks-for-khols-admin-house-roblox_GM431946152.pdfIn PDF document text
    • http://apartmani-mestrovic-krk.hr/files/how-to-get-minecraft-for-free-on-tablet_GM479516143.pdfIn PDF document text
    • https://www.apartmani-mestrovic-krk.hr/files/free-robux-we_GM431946152.pdfIn PDF document text
    • http://apartmani-mestrovic-krk.hr/files/coin-master-free-cards-link_GM406889139.pdfIn PDF document text
    • https://www.apartmani-mestrovic-krk.hr/files/robux-free-now_GM431946152.pdfIn PDF document text
    • http://apartmani-mestrovic-krk.hr/files/free-robux-no-scam_GM431946152.pdfIn PDF document text
    • http://apartmani-mestrovic-krk.hr/files/roblox-jailbreak-hack_GM431946152.pdfIn PDF document text
    • https://www.apartmani-mestrovic-krk.hr/files/how-to-get-free-things-on-roblox_GM431946152.pdfIn PDF document text
    • https://www.apartmani-mestrovic-krk.hr/files/free-spin-coin-master-ios_GM406889139.pdfIn PDF document text
    • http://apartmani-mestrovic-krk.hr/files/coin-master-hack-spin-generator_GM406889139.pdfIn PDF document text
    • https://www.apartmani-mestrovic-krk.hr/files/get-free-robux-now-without-human-verification_GM431946152.pdfIn PDF document text
    • http://apartmani-mestrovic-krk.hr/files/coin-master-daily-spin-free_GM406889139.pdfIn PDF document text
    • http://apartmani-mestrovic-krk.hr/files/free-robux-codes-no-verification-2021_GM431946152.pdfIn PDF document text
    • http://apartmani-mestrovic-krk.hr/files/roblox-health-cheat-engine_GM431946152.pdfIn PDF document text
    • http://apartmani-mestrovic-krk.hr/files/free-followers-on-tiktok-no-human-verification_GM835599320.pdfIn PDF document text
    • http://apartmani-mestrovic-krk.hr/files/cbro-roblox-hacks_GM431946152.pdfIn PDF document text
    • https://www.apartmani-mestrovic-krk.hr/files/robux-fun-hack_GM431946152.pdfIn PDF document text
    • http://phenomventures.com/In 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_off00002d17.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2D17 22092 bytes
SHA-256: e4fc06cc8983e722d3802ca6a92dee0974370c80778c9cb8097bf9fb9f8210f5
font_01_sfnt_off00005e0e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E0E 18136 bytes
SHA-256: 4d23d17564ac963ef56207bc366511735ae252a1938a9d8223d70a11ebc0d20d

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