Malicious PDF — malware analysis report

Static analysis result for SHA-256 2e8d13be888702f6…

MALICIOUS

PDF

44.9 KB Created: 2021-06-03 03:09:46 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: c303c741c692753380b65f37b58d96a3 SHA-1: 43813b8e0b471656575988acc40af16882c41288 SHA-256: 2e8d13be888702f64a5759e98baac7833f719a75c1f12cb6211b5689d67b0fa2
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to websites offering game hacks and free in-game currency, a common lure for phishing or malware distribution. The ML classifier strongly indicated maliciousness, and the presence of embedded URLs reinforces this assessment. While no scripts were explicitly extracted, the document's structure and linked content suggest it is designed to redirect users to potentially harmful sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9865

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.online/app/406889139/coin-master-free-coins-no-human-verification-game-hack PDF link annotation
    • https://www.alamac-kitbag.co.uk/uploads/files/files/how-to-get-minecraft-for-free-ios_GM479516143.pdfIn PDF document text
    • https://www.alamac-kitbag.co.uk/uploads/files/files/coinmaster-twitter_GM406889139.pdfIn PDF document text
    • https://www.alamac-kitbag.co.uk/uploads/files/files/coin-master-free-spins-and-coins-daily-links_GM406889139.pdfIn PDF document text
    • https://www.alamac-kitbag.co.uk/uploads/files/files/free-coins-and-spins-link-for-coin-master_GM406889139.pdfIn PDF document text
    • https://www.alamac-kitbag.co.uk/uploads/files/files/free-robux-quiz_GM431946152.pdfIn PDF document text
    • https://www.alamac-kitbag.co.uk/uploads/files/files/how-to-hack-roblox-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://www.alamac-kitbag.co.uk/uploads/files/files/free-spin-link-in-coin-master_GM406889139.pdfIn PDF document text
    • https://www.alamac-kitbag.co.uk/uploads/files/files/get-more-robux_GM431946152.pdfIn PDF document text
    • https://www.alamac-kitbag.co.uk/uploads/files/files/how-to-hack-roblox-jailbreak_GM431946152.pdfIn PDF document text
    • https://www.alamac-kitbag.co.uk/uploads/files/files/free-robux-codes-2021_GM431946152.pdfIn PDF document text
    • https://www.alamac-kitbag.co.uk/uploads/files/files/coin-master-hacks-free-spins_GM406889139.pdfIn PDF document text
    • https://www.alamac-kitbag.co.uk/uploads/files/files/unlimited-robux-2021_GM431946152.pdfIn PDF document text
    • https://www.alamac-kitbag.co.uk/uploads/files/files/free-robux-no-verification-at-all_GM431946152.pdfIn PDF document text
    • https://www.alamac-kitbag.co.uk/uploads/files/files/free-robux-no-gift-card_GM431946152.pdfIn PDF document text
    • https://www.alamac-kitbag.co.uk/uploads/files/files/coin-master-hack-mod-game-download_GM406889139.pdfIn PDF document text
    • https://www.alamac-kitbag.co.uk/uploads/files/files/free-robux-no-human-verification-generator_GM431946152.pdfIn PDF document text
    • https://www.alamac-kitbag.co.uk/uploads/files/files/coin-master-hack-apk-2021-download_GM406889139.pdfIn PDF document text
    • https://www.alamac-kitbag.co.uk/uploads/files/files/minecraft-112-hacked-client_GM479516143.pdfIn PDF document text
    • https://www.alamac-kitbag.co.uk/uploads/files/files/descargar-hack-coin-master_GM406889139.pdfIn PDF document text
    • https://www.alamac-kitbag.co.uk/uploads/files/files/will-minecraft-ever-be-free_GM479516143.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_004_off0000500a.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x500A 26600 bytes
SHA-256: 04811db54fb4d3e60953e6715760dbeb24140f6f8416c780ca21f153e6f89df8
font_01_sfnt_off00008d1c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8D1C 18244 bytes
SHA-256: bf3fe32e7bdb8dff11b484033bf5381a512b4267db5012b87197df855ee77eab