Malicious PDF — malware analysis report

Static analysis result for SHA-256 cd11504660d516ef…

MALICIOUS

PDF

47.5 KB Created: 2021-06-04 01:43:34 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: 8c0753cb7f2dba7e4331faf45a948aa4 SHA-1: 6cc9345032719dfea5ef73e98f330bee0fdf4508 SHA-256: cd11504660d516efe3ef3f41157e5d7535dfe584f6e099656a4ab5b5ee96c1df
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links, including one identified as a malicious redirector leading to a "coin master gameplay game hack" lure. The document body and embedded links suggest a social engineering attempt to trick users into visiting potentially harmful websites. No scripts were extracted, but the presence of malicious redirectors and the lure indicate a phishing or scam attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9769

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.online/app/406889139/coin-master-gameplay-game-hack In PDF document text
    • http://www.otomasi.uinjambi.ac.id/repository/free-robux-generator-com-roblox-hack_GM431946152.pdfIn PDF document text
    • http://www.otomasi.uinjambi.ac.id/repository/free-robux-codes-generator_GM431946152.pdfIn PDF document text
    • http://www.otomasi.uinjambi.ac.id/repository/tiktok-for-free_GM835599320.pdfIn PDF document text
    • http://www.otomasi.uinjambi.ac.id/repository/can-you-play-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://www.otomasi.uinjambi.ac.id/repository/coin-master-gifts_GM406889139.pdfIn PDF document text
    • http://www.otomasi.uinjambi.ac.id/repository/coin-master-rewards-free-spins_GM406889139.pdfIn PDF document text
    • http://www.otomasi.uinjambi.ac.id/repository/get-free-robux_GM431946152.pdfIn PDF document text
    • http://www.otomasi.uinjambi.ac.id/repository/free-coin-master-spins-link_GM406889139.pdfIn PDF document text
    • http://www.otomasi.uinjambi.ac.id/repository/coin-master-hack-no-human-verification-2021_GM406889139.pdfIn PDF document text
    • http://www.otomasi.uinjambi.ac.id/repository/free-robux-offers_GM431946152.pdfIn PDF document text
    • http://www.otomasi.uinjambi.ac.id/repository/what-is-wurst_GM479516143.pdfIn PDF document text
    • http://www.otomasi.uinjambi.ac.id/repository/no-verification-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://www.otomasi.uinjambi.ac.id/repository/camping-roblox-game-how-to-get-free-items_GM431946152.pdfIn PDF document text
    • http://www.otomasi.uinjambi.ac.id/repository/coin-master-free-spins-and-coins-2021_GM406889139.pdfIn PDF document text
    • http://www.otomasi.uinjambi.ac.id/repository/easy-how-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://www.otomasi.uinjambi.ac.id/repository/roblox-free-bundles_GM431946152.pdfIn PDF document text
    • http://www.otomasi.uinjambi.ac.id/repository/play-minecraft-pocket-edition-for-free_GM479516143.pdfIn PDF document text
    • http://www.otomasi.uinjambi.ac.id/repository/how-do-you-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • http://www.otomasi.uinjambi.ac.id/repository/free-robux-com-roblox_GM431946152.pdfIn PDF document text
    • http://www.otomasi.uinjambi.ac.id/repository/coin-master-daily-free-spins-link-today-blog_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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off000053ee.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x53EE 24956 bytes
SHA-256: 7e3e6fbfc9ba193ed93675f14aa1dfca3936c6ac998161a837fa3719b0f1c31d
font_01_sfnt_off00008cc6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8CC6 2932 bytes
SHA-256: 47212e5265049020197493c583731489434d020aa8885590c20eb3ede8c9aab7
font_02_sfnt_off000096ed.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x96ED 18236 bytes
SHA-256: ad3c54622fe5860f441fa157cfd09fdd7391131bf21229add7d3bdfc0c26f4fb

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