Malicious PDF — malware analysis report

Static analysis result for SHA-256 341b3a24f16d060d…

MALICIOUS

PDF

43.2 KB Created: 2021-06-03 08:09:21 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15
MD5: 902c5d1d5079db48069d743bc739b2a6 SHA-1: 8f97949b7d8882b936fada835e25a52b4544adb8 SHA-256: 341b3a24f16d060db14d35f6e7c436da5f2d7e85a4923b17b86cb350420ac18e
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to redirectors and external websites, masquerading as "game hacks" or "free spins" to lure users. The primary malicious link identified is https://netcdn.online/app/406889139/coin-master-money-hack-game-hack, which is flagged as a known malicious redirector. While no scripts were explicitly extracted, the PDF structure and embedded links suggest an attempt to redirect the user to a malicious site, likely for further exploitation or credential harvesting.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9865

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-money-hack-game-hack In PDF document text
    • https://www.jjpremiers.com/files/coin-master-free-spins-link-june-2021_GM406889139.pdfIn PDF document text
    • https://www.jjpremiers.com/files/how-to-get-free-robux-codes-2021_GM431946152.pdfIn PDF document text
    • https://www.jjpremiers.com/files/minecraft-auto-miner-hack_GM479516143.pdfIn PDF document text
    • http://jjpremiers.com/files/codes-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://www.jjpremiers.com/files/how-to-get-free-robux-on-ipad_GM431946152.pdfIn PDF document text
    • http://jjpremiers.com/files/hack-coin-master-spin-apk_GM406889139.pdfIn PDF document text
    • http://jjpremiers.com/files/free-robux-without-doing-anything_GM431946152.pdfIn PDF document text
    • http://jjpremiers.com/files/hack-the-coin-master-game_GM406889139.pdfIn PDF document text
    • http://jjpremiers.com/files/mathep_GM431946152.pdfIn PDF document text
    • https://www.jjpremiers.com/files/rbxoffers-com-free-robux_GM431946152.pdfIn PDF document text
    • https://www.jjpremiers.com/files/free-coin-master-cards_GM406889139.pdfIn PDF document text
    • https://www.jjpremiers.com/files/how-to-hack-roblox-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://www.jjpremiers.com/files/coin-master-apk-hack-download_GM406889139.pdfIn PDF document text
    • http://jjpremiers.com/files/how-to-hack-someones-roblox-account_GM431946152.pdfIn PDF document text
    • https://www.jjpremiers.com/files/wahoo-gaming-co-free-robux_GM431946152.pdfIn PDF document text
    • https://www.jjpremiers.com/files/free-robux-com-no-verification_GM431946152.pdfIn PDF document text
    • http://jjpremiers.com/files/free-minecraft-skin-maker_GM479516143.pdfIn PDF document text
    • http://jjpremiers.com/files/mcpe-master-hack-unlimited-coins_GM406889139.pdfIn PDF document text
    • https://www.jjpremiers.com/files/get-free-robux-generator_GM431946152.pdfIn PDF document text
    • http://jjpremiers.com/files/minecraft-free-education_GM479516143.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
stream_004_off00004e80.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4E80 25512 bytes
SHA-256: fd96b8cf8080bf6732eaa587d04ebde0b03f9674609435adfe878273e108b492
font_01_sfnt_off00008765.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8765 17896 bytes
SHA-256: a6b353828501ff7b1093da1228b83900f1f5af44564cde8da81e8d6550ac8b57

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