Malicious PDF — malware analysis report

Static analysis result for SHA-256 02dada7bd130c4d9…

MALICIOUS

PDF

35.3 KB Created: 2021-07-06 19:12:20 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-07
MD5: c94fc334baaefa18bd52f8d4d9174039 SHA-1: cd0bd735c6f7faf22a8239f0928cbe6c794b1503 SHA-256: 02dada7bd130c4d9179a3624e185899c2e99ee4766ae7c337218ad5d36eeea7f
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to redirector infrastructure, specifically advertising "free generator / game hack" services. The primary redirect URL is http://netcdn.tw/app/431946152/roblox-robux-generator-game-hack. This indicates a likely phishing or malware distribution attempt, leveraging common gaming lures to entice clicks. No scripts were extracted, but the embedded URLs and heuristic firings strongly suggest a malicious intent to redirect users to potentially harmful content.

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/431946152/roblox-robux-generator-game-hack In PDF document text
    • https://razredna-nastava.net/files/how-to-hack-roblox-tix-with-cheat-engine-63_GM431946152.pdfIn PDF document text
    • http://razredna-nastava.net/files/coin-master-free-spins-link-without-human-verification_GM406889139.pdfIn PDF document text
    • http://razredna-nastava.net/files/coin-master-spins-hack_GM406889139.pdfIn PDF document text
    • https://razredna-nastava.net/files/snow-shoveling-hacks-roblox_GM431946152.pdfIn PDF document text
    • http://razredna-nastava.net/files/master-coin-free-spin_GM406889139.pdfIn PDF document text
    • https://razredna-nastava.net/files/get-minecraft-windows-10-free_GM479516143.pdfIn PDF document text
    • https://razredna-nastava.net/files/roblox-2021-cheats-flying_GM431946152.pdfIn PDF document text
    • https://razredna-nastava.net/files/get-free-robux-today_GM431946152.pdfIn PDF document text
    • http://razredna-nastava.net/files/free-spins-on-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://razredna-nastava.net/files/como-atravesar-paredes-en-roblox-hack_GM431946152.pdfIn PDF document text
    • https://razredna-nastava.net/files/coin-master-app-hacks_GM406889139.pdfIn PDF document text
    • http://razredna-nastava.net/files/roblox-chat-cheats_GM431946152.pdfIn PDF document text
    • https://razredna-nastava.net/files/blox-world-free-robux_GM431946152.pdfIn PDF document text
    • http://razredna-nastava.net/files/roblox-hack-cleints_GM431946152.pdfIn PDF document text
    • http://razredna-nastava.net/files/how-to-hack-someones-account-on-roblox_GM431946152.pdfIn PDF document text
    • http://razredna-nastava.net/files/2-free-tacos-roblox_GM431946152.pdfIn PDF document text
    • https://razredna-nastava.net/files/coin-master-34-5-hack_GM406889139.pdfIn PDF document text
    • http://razredna-nastava.net/files/free-nike-shirts-roblox_GM431946152.pdfIn PDF document text
    • https://razredna-nastava.net/files/free-roblox-2021-agreeing_GM431946152.pdfIn PDF document text
    • http://razredna-nastava.net/files/free-roblox-hack_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
font_00_sfnt_off0000340c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x340C 22340 bytes
SHA-256: 823cfc5efaac1a872d9245fbff8e570bc6986a972e379f5041e56427af622ed9
font_01_sfnt_off000065a9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x65A9 18728 bytes
SHA-256: 787ffc0141419081af677b20e4d0e419e4bbb483b05840f2e673f9ef6eccfe79

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