Malicious PDF — malware analysis report

Static analysis result for SHA-256 24e06986ea601a01…

MALICIOUS

PDF

46.2 KB Created: 2021-06-11 01:07:45 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: a22d31ef70d5d9aefd4b1e5f11b12079 SHA-1: e3d893cd6b9d7d20f703f8bdcfff9e2c61f777c5 SHA-256: 24e06986ea601a017361cb8506f3d8291be9c2e089777d3a938208aa2bdde8b2
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links that redirect to malicious infrastructure, specifically promoting 'game hacks' and 'generators'. The ML classifier also flagged this PDF as malicious. The primary attack pattern involves luring users with promises of in-game benefits to a redirector chain, likely leading to further malware or phishing. No scripts were extracted, but the embedded links are the primary indicators of malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9864

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.tw/app/431946152/obc-roblox-hack-game-hack In PDF document text
    • http://www.gox.pt/images/free-robux-generator-2021_GM431946152.pdfIn PDF document text
    • http://www.gox.pt/images/real-free-robux-codes_GM431946152.pdfIn PDF document text
    • http://www.gox.pt/images/how-to-get-coin-master-free-spins-in-email_GM406889139.pdfIn PDF document text
    • http://www.gox.pt/images/free-spins-on-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://www.gox.pt/images/free-robux-offers_GM431946152.pdfIn PDF document text
    • http://www.gox.pt/images/coin-master-hack-game-download-mod-apk_GM406889139.pdfIn PDF document text
    • http://www.gox.pt/images/free-robux-giveaway-2021_GM431946152.pdfIn PDF document text
    • http://www.gox.pt/images/free-robux-no-robot-verification_GM431946152.pdfIn PDF document text
    • http://www.gox.pt/images/free-roblox-generator_GM431946152.pdfIn PDF document text
    • http://www.gox.pt/images/roblox-shirt-template-free_GM431946152.pdfIn PDF document text
    • http://www.gox.pt/images/bloxland-earn-free-robux_GM431946152.pdfIn PDF document text
    • http://www.gox.pt/images/coin-master-daily-free-spin-app_GM406889139.pdfIn PDF document text
    • http://www.gox.pt/images/minecraft-hacks-115-2_GM479516143.pdfIn PDF document text
    • http://www.gox.pt/images/get-free-robux-now_GM431946152.pdfIn PDF document text
    • http://www.gox.pt/images/how-to-hack-a-roblox-account-2021_GM431946152.pdfIn PDF document text
    • http://www.gox.pt/images/coin-master-hack-https-coinms-net_GM406889139.pdfIn PDF document text
    • http://www.gox.pt/images/invited-free-robux-glitch-by-unknown_GM431946152.pdfIn PDF document text
    • http://www.gox.pt/images/how-to-make-roblox-audio-for-free_GM431946152.pdfIn PDF document text
    • http://www.gox.pt/images/coin-master-spin-hack-without-verification_GM406889139.pdfIn PDF document text
    • http://www.gox.pt/images/coin-master-mod_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_off00005234.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5234 29752 bytes
SHA-256: 94cfac639fb5ab312fed583d96574ce54e8dc905363a41124030d31cb2180ade
font_01_sfnt_off0000924b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x924B 18184 bytes
SHA-256: 2e29854c10e80c554ea94f6cd979c050982d2178c2fca548b578a8bcbd56a596

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