Malicious PDF — malware analysis report

Static analysis result for SHA-256 6dbde6c91ed82287…

MALICIOUS

PDF

34.7 KB Created: 2021-06-19 11:08:00 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15
MD5: f066f2f57f9f5667247c0e215748fb8f SHA-1: 1b73ae7c803d6bf2cbf34e2977abb8e474a29c59 SHA-256: 6dbde6c91ed82287ca0eeb16714222119d1040dbfdff2afda9fb1e9c246eeac4
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a critical heuristic firing for a malicious redirector link, specifically targeting users with lures for game hacks and generators. The embedded URL, http://netcdn.co/app/431946152/mega-co-nz-roblox-hack-game-hack, is identified as malicious. While no scripts were extracted, the document's structure and embedded links strongly suggest a phishing or scam attempt 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.co/app/431946152/mega-co-nz-roblox-hack-game-hack In PDF document text
    • https://www.fotokad.ae/uploaded_files/userfiles/files/coin-master-daily-free-spins-and-coins-2021_GM406889139.pdfIn PDF document text
    • https://www.fotokad.ae/uploaded_files/userfiles/files/hire-a-hacker-for-roblox_GM431946152.pdfIn PDF document text
    • https://www.fotokad.ae/uploaded_files/userfiles/files/free-tiktok-views_GM835599320.pdfIn PDF document text
    • https://www.fotokad.ae/uploaded_files/userfiles/files/minecraft-free-download-ios_GM479516143.pdfIn PDF document text
    • https://www.fotokad.ae/uploaded_files/userfiles/files/coin-master-fb-free-spins-link_GM406889139.pdfIn PDF document text
    • https://www.fotokad.ae/uploaded_files/userfiles/files/how-to-get-free-robux-without-downloading-apps_GM431946152.pdfIn PDF document text
    • https://www.fotokad.ae/uploaded_files/userfiles/files/free-robux-without-human-verification-2021_GM431946152.pdfIn PDF document text
    • https://www.fotokad.ae/uploaded_files/userfiles/files/my-roblox-account-is-being-hacked-what-do-i-do_GM431946152.pdfIn PDF document text
    • https://www.fotokad.ae/uploaded_files/userfiles/files/coin-master-free-spins-daily-link-updated_GM406889139.pdfIn PDF document text
    • https://www.fotokad.ae/uploaded_files/userfiles/files/get-free-robux-com_GM431946152.pdfIn PDF document text
    • https://www.fotokad.ae/uploaded_files/userfiles/files/free-coin-master-spins-daily_GM406889139.pdfIn PDF document text
    • https://www.fotokad.ae/uploaded_files/userfiles/files/get-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://www.fotokad.ae/uploaded_files/userfiles/files/free-minecraft-capes_GM479516143.pdfIn PDF document text
    • https://www.fotokad.ae/uploaded_files/userfiles/files/how-to-get-free-minecraft-skins_GM479516143.pdfIn PDF document text
    • https://www.fotokad.ae/uploaded_files/userfiles/files/free-coin-master-hacks-no-verification_GM406889139.pdfIn PDF document text
    • https://www.fotokad.ae/uploaded_files/userfiles/files/can-you-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • https://www.fotokad.ae/uploaded_files/userfiles/files/free-fire-vs-pubg-tik-tok_GM835599320.pdfIn PDF document text
    • https://www.fotokad.ae/uploaded_files/userfiles/files/how-to-get-free-shirts-and-pants-on-roblox-2021_GM431946152.pdfIn PDF document text
    • https://www.fotokad.ae/uploaded_files/userfiles/files/free-texture-packs-for-minecraft-pe_GM479516143.pdfIn PDF document text
    • https://www.fotokad.ae/uploaded_files/userfiles/files/coin-master-club-hack_GM406889139.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_off0000326b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x326B 21872 bytes
SHA-256: 424fa1b33dd75303d188d50a659cfd639b124d7aa7c4c3e80cc19968a38a8b4b
font_01_sfnt_off000062d5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62D5 18936 bytes
SHA-256: 3fd476fbc0af393bf66cfd4c0b65f3f4ec4586b15b5cc48603afb03f1693e403

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