Malicious PDF — malware analysis report

Static analysis result for SHA-256 480c37e6fec1ddca…

MALICIOUS

PDF

35.6 KB Created: 2021-07-05 23:19:54 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: 681822e9d0407f71fc236c4c8cedc190 SHA-1: d9000b21e6054263b1b049eb86bad5c77ca91d54 SHA-256: 480c37e6fec1ddcacb459133624365cba870b030f9e5e2a61f2e943fce2e3524
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links that redirect to malicious infrastructure, specifically promoting 'game hacks' and 'free currency' lures. The primary link, http://netcdn.tw/app/406889139/coin-master-free-stuff-game-hack, is flagged as malicious. The document's content and embedded URLs strongly suggest a phishing or scam attempt designed to trick users into visiting potentially harmful sites. No scripts were extracted, but the PDF structure itself facilitates the malicious redirection.

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/406889139/coin-master-free-stuff-game-hack In PDF document text
    • http://study.mtsn3limapuluhkota.sch.id/__statics/gudangsoal/files/free-robux-password-required_GM431946152.pdfIn PDF document text
    • http://study.mtsn3limapuluhkota.sch.id/__statics/gudangsoal/files/download-minecraft-bedrock_GM479516143.pdfIn PDF document text
    • http://study.mtsn3limapuluhkota.sch.id/__statics/gudangsoal/files/robux-generator-2021-free_GM431946152.pdfIn PDF document text
    • http://study.mtsn3limapuluhkota.sch.id/__statics/gudangsoal/files/how-to-hack-and-get-free-robux_GM431946152.pdfIn PDF document text
    • http://study.mtsn3limapuluhkota.sch.id/__statics/gudangsoal/files/free-robux-codes-no-verification_GM431946152.pdfIn PDF document text
    • http://study.mtsn3limapuluhkota.sch.id/__statics/gudangsoal/files/can-you-actually-hack-roblox-for-rubox_GM431946152.pdfIn PDF document text
    • http://study.mtsn3limapuluhkota.sch.id/__statics/gudangsoal/files/online-robux-hack-2021_GM431946152.pdfIn PDF document text
    • http://study.mtsn3limapuluhkota.sch.id/__statics/gudangsoal/files/coin-master-free-spins-link-today_GM406889139.pdfIn PDF document text
    • http://study.mtsn3limapuluhkota.sch.id/__statics/gudangsoal/files/free-robux-promo-codes_GM431946152.pdfIn PDF document text
    • http://study.mtsn3limapuluhkota.sch.id/__statics/gudangsoal/files/can-free-models-steal-your-password-roblox_GM431946152.pdfIn PDF document text
    • http://study.mtsn3limapuluhkota.sch.id/__statics/gudangsoal/files/getrobux-come_GM431946152.pdfIn PDF document text
    • http://study.mtsn3limapuluhkota.sch.id/__statics/gudangsoal/files/20210-robux_GM431946152.pdfIn PDF document text
    • http://study.mtsn3limapuluhkota.sch.id/__statics/gudangsoal/files/coin-master-hack-android-2021_GM406889139.pdfIn PDF document text
    • http://study.mtsn3limapuluhkota.sch.id/__statics/gudangsoal/files/coin-master-hack-no-survey_GM406889139.pdfIn PDF document text
    • http://study.mtsn3limapuluhkota.sch.id/__statics/gudangsoal/files/roblox-aimbot-hack_GM431946152.pdfIn PDF document text
    • http://study.mtsn3limapuluhkota.sch.id/__statics/gudangsoal/files/minecraft-bedrock-edition-free_GM479516143.pdfIn PDF document text
    • http://study.mtsn3limapuluhkota.sch.id/__statics/gudangsoal/files/how-to-hack-in-someones-account-on-roblox_GM431946152.pdfIn PDF document text
    • http://study.mtsn3limapuluhkota.sch.id/__statics/gudangsoal/files/free-robux-gift-card_GM431946152.pdfIn PDF document text
    • http://study.mtsn3limapuluhkota.sch.id/__statics/gudangsoal/files/roblox-free-robux_GM431946152.pdfIn PDF document text
    • http://study.mtsn3limapuluhkota.sch.id/__statics/gudangsoal/files/coin-master-daily-free-spins-link-app-download_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
stream_002_off000033f1.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x33F1 23408 bytes
SHA-256: 68600e71aaea73a9f88f80a41ad8c21a6e63cbef2ecd53547aa5b864f4a27d8f
font_01_sfnt_off000068eb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x68EB 18140 bytes
SHA-256: ffbe3bd5e7ca89ebd9867be994f107e79cc056fa0179a9297eb86efc4e13e545

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