Malicious PDF — malware analysis report

Static analysis result for SHA-256 d2e1f52aea6b06d5…

MALICIOUS

PDF

34.7 KB Created: 2021-07-06 02:11:45 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-07
MD5: d3c6f5e796409349b692cf0c15f5b9f2 SHA-1: 940220336dd11ae5488ba4d8775f7eb2624a0596 SHA-256: d2e1f52aea6b06d528d71844fd9a332085199119eb19037f306f515ac2e75c02
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a game hack and free spins lure to entice users to click on embedded links. The primary link, http://netcdn.tw/app/406889139/coin-master-free-spins-link-quora-game-hack, likely leads to a malicious download or phishing page. The ML classifier strongly indicated maliciousness, and the PDF_GAME_HACK_REDIRECT_LURE heuristic confirms the deceptive nature of the content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector high 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.
  • 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
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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-spins-link-quora-game-hack PDF link annotation
    • http://katalog.ireyogya.org/repository/lucky-patcher-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/best-free-roblox-level-7-full-lua-eecutor-august-2021_GM431946152.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/height-roblox-jump-hack_GM431946152.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/how-to-hack-coin-master-game-without-root_GM406889139.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/free-roblox-accounts-with-robux-2021_GM431946152.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/free-scripts-for-roblox-studio_GM431946152.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/coin-master-hack-apk-2021-ios_GM406889139.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/free-minecraft-capes_GM479516143.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/free-robux-robloxlover_GM431946152.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/cheat-codes-for-assassin-roblox_GM431946152.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/free-robux-generator-without-human-verification_GM431946152.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/free-robux-codes-2021-real_GM431946152.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/roblox-mining-sim-hack-pastebni-december-2021_GM431946152.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/como-tener-ropa-gratis-en-roblox-hack-2021_GM431946152.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/is-minecraft-earth-free_GM479516143.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/roblox-cheat-for-two-player-millitary-tycoon_GM431946152.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/eternial-moon-skylight-roblox-hack_GM431946152.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/get-free-robux-gg_GM431946152.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/free-obey-roblox_GM431946152.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/goud-info-roblox-hack_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000030e6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x30E6 22688 bytes
SHA-256: bc72630f4e31023fdd096a09bf88da6686343ad435dfdfed50bebcb32b2c1923
font_01_sfnt_off000063bd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x63BD 18640 bytes
SHA-256: 854813a0d1d296087869f9650f2c8127593c4544be73c34457aa680c0b691141

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