Malicious PDF — malware analysis report

Static analysis result for SHA-256 6d0673de7acbd2ca…

MALICIOUS

PDF

34.3 KB Created: 2021-07-05 17:57:53 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: 2f3893f0f5cd012a817950fb9edb6b4c SHA-1: c922c5db8c4b86098a3f213c933f1b1238a319d5 SHA-256: 6d0673de7acbd2ca6af6430996123fab58ea4185d245228213e310bc0518b050
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links that redirect to malicious infrastructure, disguised as free game hacks or generators. The primary lure is the URL http://netcdn.tw/app/431946152/free-roblox-clothes-game-hack, which is identified as a malicious redirector. While no scripts were explicitly extracted, the PDF structure and embedded URLs strongly suggest a phishing or scam attempt to lead 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/free-roblox-clothes-game-hack In PDF document text
    • http://balitgetas.co.id/pustaka/repository/how-to-download-minecraft-for-free-on-android_GM479516143.pdfIn PDF document text
    • http://balitgetas.co.id/pustaka/repository/pubg-for-uc_GM1330123889.pdfIn PDF document text
    • http://balitgetas.co.id/pustaka/repository/how-to-get-2021-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • http://balitgetas.co.id/pustaka/repository/free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://balitgetas.co.id/pustaka/repository/how-to-get-free-food-for-foxy-in-coin-master_GM406889139.pdfIn PDF document text
    • http://balitgetas.co.id/pustaka/repository/games-that-give-free-robux_GM431946152.pdfIn PDF document text
    • http://balitgetas.co.id/pustaka/repository/roblox-hack-scripts-for-children_GM431946152.pdfIn PDF document text
    • http://balitgetas.co.id/pustaka/repository/rbx-gg-free-robux_GM431946152.pdfIn PDF document text
    • http://balitgetas.co.id/pustaka/repository/op-rewards-free-robux_GM431946152.pdfIn PDF document text
    • http://balitgetas.co.id/pustaka/repository/claimrobux-net_GM431946152.pdfIn PDF document text
    • http://balitgetas.co.id/pustaka/repository/how-to-be-admin-in-roblox-for-free_GM431946152.pdfIn PDF document text
    • http://balitgetas.co.id/pustaka/repository/get-me-free-robux_GM431946152.pdfIn PDF document text
    • http://balitgetas.co.id/pustaka/repository/hacked-shirts-roblox_GM431946152.pdfIn PDF document text
    • http://balitgetas.co.id/pustaka/repository/tiktok-free-download-apk_GM835599320.pdfIn PDF document text
    • http://balitgetas.co.id/pustaka/repository/get-free-robux-no-human-verification_GM431946152.pdfIn PDF document text
    • http://balitgetas.co.id/pustaka/repository/roblox-games-play-free-no-download_GM431946152.pdfIn PDF document text
    • http://balitgetas.co.id/pustaka/repository/easy-ways-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://balitgetas.co.id/pustaka/repository/best-way-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://balitgetas.co.id/pustaka/repository/free-coin-app_GM406889139.pdfIn PDF document text
    • http://balitgetas.co.id/pustaka/repository/como-usar-pastbin-no-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_off00002fb7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2FB7 22300 bytes
SHA-256: f45734973a14c5f2d56834bb05e54f5917e763a922b9eedef615b51d6278a928
font_01_sfnt_off00006183.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6183 18920 bytes
SHA-256: 5a021ec2e3a1c815c5b2fe03a3b7d55c3926b1d1d0c335674de0888c5422ec2f

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