Malicious PDF — malware analysis report

Static analysis result for SHA-256 ea15bbb24d3e2698…

MALICIOUS

PDF

43.3 KB Created: 2021-05-12 02:31:22 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-05
MD5: f0eb3a069af516af04c4987c20e87993 SHA-1: 1a6a03bc41427fdcca582ecd940721f86136d230 SHA-256: ea15bbb24d3e269846b66f82ed226dc3caf6fba7f9cf4b25a912e3cf213116d1
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to websites offering game hacks and free in-game currency, a common lure for malicious downloads or phishing. The ML classifier strongly flagged this PDF as malicious, and the presence of external URIs further supports a malicious intent. No scripts were extracted, but the document's structure and embedded links indicate it is designed to redirect users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9969

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 https://netcdn.xyz/app/406889139/get-free-spins-for-coin-master-game-hack PDF link annotation
    • http://digilib.unbari.ac.id/repository/coin-master-35-2-hack_GM406889139.pdfIn PDF document text
    • http://digilib.unbari.ac.id/repository/coin-master-hack-version-download-2021-android_GM406889139.pdfIn PDF document text
    • http://digilib.unbari.ac.id/repository/roblox-admin-hack_GM431946152.pdfIn PDF document text
    • http://digilib.unbari.ac.id/repository/free-minecraft-resource-packs_GM479516143.pdfIn PDF document text
    • http://digilib.unbari.ac.id/repository/how-to-get-free-spins-on-coin-master-blogspot_GM406889139.pdfIn PDF document text
    • http://digilib.unbari.ac.id/repository/promo-codes-for-free-robux_GM431946152.pdfIn PDF document text
    • http://digilib.unbari.ac.id/repository/free-roblox-executor-no-key_GM431946152.pdfIn PDF document text
    • http://digilib.unbari.ac.id/repository/how-to-get-2021-robux-for-free_GM431946152.pdfIn PDF document text
    • http://digilib.unbari.ac.id/repository/free-dominus-roblox_GM431946152.pdfIn PDF document text
    • http://digilib.unbari.ac.id/repository/coin-master-cheats_GM406889139.pdfIn PDF document text
    • http://digilib.unbari.ac.id/repository/coin-master-hack-pro_GM406889139.pdfIn PDF document text
    • http://digilib.unbari.ac.id/repository/can-you-give-me-free-robux_GM431946152.pdfIn PDF document text
    • http://digilib.unbari.ac.id/repository/best-free-spins-link-coin-master_GM406889139.pdfIn PDF document text
    • http://digilib.unbari.ac.id/repository/free-spin-link_GM406889139.pdfIn PDF document text
    • http://digilib.unbari.ac.id/repository/free-robux-generator-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • http://digilib.unbari.ac.id/repository/coin-master-free-spins-link-today-blogspot_GM406889139.pdfIn PDF document text
    • http://digilib.unbari.ac.id/repository/robux-miner_GM431946152.pdfIn PDF document text
    • http://digilib.unbari.ac.id/repository/roblox-promo-code-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://digilib.unbari.ac.id/repository/coin-master-heaven-free-spins-link-2021_GM406889139.pdfIn PDF document text
    • http://digilib.unbari.ac.id/repository/free-spins-for-coin-master-game_GM406889139.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
stream_003_off00004b6f.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4B6F 29108 bytes
SHA-256: 1f2db423387cbb3272dc13bef47c56cc7c0633fb026df78395d6f905de8d27e3
font_01_sfnt_off00008852.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8852 17884 bytes
SHA-256: 9bf67b2ee87cdcf37b0aaa2d40e70a5836dac1840b9be614bff5a3f1a0edfaa7

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