Malicious PDF — malware analysis report

Static analysis result for SHA-256 0471236f666de59d…

MALICIOUS

PDF

34.3 KB Created: 2021-06-29 00:58:37 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15
MD5: 29c31a6ed84a668d4c5bae67533cdad6 SHA-1: c9357676f9ed47ebe377024f7f483a4c6408aff4 SHA-256: 0471236f666de59dd2de060114e488cfa4a3fac6f003fff82e678cb07c42757c
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains embedded links that are identified as malicious redirectors, specifically targeting users with lures related to game hacks and virtual currency. The document body and heuristics confirm the presence of these lures, directing users to the URL http://netcdn.co/app/431946152/inspect-element-roblox-robux-hack-game-hack. This indicates a phishing attempt designed to lead victims to potentially harmful websites.

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/inspect-element-roblox-robux-hack-game-hack In PDF document text
    • http://www.dciprotection.ca/images/free-coins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://www.dciprotection.ca/images/how-to-hack-a-minecraft-account_GM479516143.pdfIn PDF document text
    • http://www.dciprotection.ca/images/free-roblox-username-changer_GM431946152.pdfIn PDF document text
    • http://www.dciprotection.ca/images/roblox-greenville-all-pass-free_GM431946152.pdfIn PDF document text
    • http://www.dciprotection.ca/images/free-tiktok-fans-no-verification_GM835599320.pdfIn PDF document text
    • http://www.dciprotection.ca/images/how-to-make-a-minecraft-server-for-free-java_GM479516143.pdfIn PDF document text
    • http://www.dciprotection.ca/images/como-hackear-robux-en-roblox_GM431946152.pdfIn PDF document text
    • http://www.dciprotection.ca/images/coin-master-apk-mod-free-download_GM406889139.pdfIn PDF document text
    • http://www.dciprotection.ca/images/free-coins-coin-master_GM406889139.pdfIn PDF document text
    • http://www.dciprotection.ca/images/can-i-get-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://www.dciprotection.ca/images/funbloxxyz-free-robux_GM431946152.pdfIn PDF document text
    • http://www.dciprotection.ca/images/roblox-free-robux-website_GM431946152.pdfIn PDF document text
    • http://www.dciprotection.ca/images/how-do-i-get-free-coins-in-coin-master_GM406889139.pdfIn PDF document text
    • http://www.dciprotection.ca/images/roblox-hack-no-human-verification-no-survey-no-download-2021_GM431946152.pdfIn PDF document text
    • http://www.dciprotection.ca/images/free-robux-easy_GM431946152.pdfIn PDF document text
    • http://www.dciprotection.ca/images/i-hacked-this-person-on-roblox_GM431946152.pdfIn PDF document text
    • http://www.dciprotection.ca/images/how-to-free-robux_GM431946152.pdfIn PDF document text
    • http://www.dciprotection.ca/images/dll-hack-roblox-lumber-tycoon_GM431946152.pdfIn PDF document text
    • http://www.dciprotection.ca/images/tuto-roblox-get-free-robux-no-fake_GM431946152.pdfIn PDF document text
    • http://www.dciprotection.ca/images/roblox-games-play-free-no-download_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 4

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
font_00_sfnt_off0000308f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x308F 21652 bytes
SHA-256: fe5560bfe47d4d50b3374877b7150d9f5e4d64d652c8e43e6e2e0477e3afeafd
font_01_sfnt_off0000600a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x600A 19336 bytes
SHA-256: d007cbca025184599a0d797f2e71a262ecc1563e2be60599799025cd9b2a26f3

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