Malicious PDF — malware analysis report

Static analysis result for SHA-256 b64fe0b4c27658d1…

MALICIOUS

PDF

34.0 KB Created: 2021-07-06 14:48:24 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 0434f118d9a011c10b09f28f9af6e101 SHA-1: b406ca73372275c824adf1be85ad2ca11bced990 SHA-256: b64fe0b4c27658d15f57ec60f1361de8ebec24c2effa3214581577b578395d0e
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded URLs, with a primary lure pointing to a 'game hack' generator. The heuristic firings confirm this is a redirection to a potentially malicious site. While no scripts were directly extracted, the nature of the lure and the embedded URLs suggest an attempt to trick the user into downloading a payload, likely disguised as a game cheat or hack. The document's content and structure strongly indicate a phishing or scam attempt.

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/clean-master-coins-hack-game-hack PDF link annotation
    • http://library.forda-mof.org/katalog/repository/coin-master-hack-ios-download-2021_GM406889139.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/free-robux-youtube_GM431946152.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/free-spins-coin-master-apple_GM406889139.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/coin-master-free-spins-and-chips_GM406889139.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/how-to-make-a-minecraft-pe-server-for-free_GM479516143.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/free-minecraft-printables_GM479516143.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/free-star-codes-roblox_GM431946152.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/haktuts-coin-master-spins_GM406889139.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/get-free-spins-coin-master-link_GM406889139.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/hack-para-pet-simulator-roblox_GM431946152.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/free-robux-no-buying-things_GM431946152.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/picture-roblox_GM431946152.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/free-minecraft-hacks_GM479516143.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/free-spin-link-coin-master_GM406889139.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/roblox-account-hack-pastebin_GM431946152.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/best-free-roblox-executor_GM431946152.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/how-to-hack-someone-on-roblox_GM431946152.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/como-hackear-roblox-jailbreak_GM431946152.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/youtube-roblox-hacks-for-rubox-com_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_off000030e4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x30E4 22560 bytes
SHA-256: f718a5199dc83a5624e469fee898d3cb3be86613ac896df0ebbe647019dd4ec9
font_01_sfnt_off000062f5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62F5 18080 bytes
SHA-256: 9c2bf1894890945564fd7824672aa39d3658e30de4050c3be4bdf1a4a3dd007e

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