Malicious PDF — malware analysis report

Static analysis result for SHA-256 ffe5e6403d8d40a5…

MALICIOUS

PDF

35.2 KB Created: 2021-07-08 12:22:44 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 1e7aa426063360eea45c8136ee498441 SHA-1: 8502865092bdef269a930f9400fbb7e3337b5514 SHA-256: ffe5e6403d8d40a5260fc08863b956e452ebefca7d3923f27152934d7edbb1e9
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded URLs that redirect to websites offering game hacks and free in-game currency. The primary lure, 'coin-master-free-spins-blogspot-game-hack', is hosted on a suspicious domain, indicating a phishing or scam attempt. While no scripts were explicitly extracted, the PDF structure and embedded links strongly suggest a social engineering tactic to drive users to malicious sites, likely for credential harvesting or malware delivery.

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-blogspot-game-hack PDF link annotation
    • http://www.salwangurgaon.com/files/cute-free-roblox-clothes_GM431946152.pdfIn PDF document text
    • http://www.salwangurgaon.com/files/roblox-jailbreak-hack_GM431946152.pdfIn PDF document text
    • http://www.salwangurgaon.com/files/easy-way-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://www.salwangurgaon.com/files/cool-minecraft-hacks_GM479516143.pdfIn PDF document text
    • http://www.salwangurgaon.com/files/free-robux-cards_GM431946152.pdfIn PDF document text
    • http://www.salwangurgaon.com/files/free-spins-in-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://www.salwangurgaon.com/files/roblox-sniper-update-hacks_GM431946152.pdfIn PDF document text
    • http://www.salwangurgaon.com/files/best-hack-for-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://www.salwangurgaon.com/files/free-apk-mod-coin-master_GM406889139.pdfIn PDF document text
    • http://www.salwangurgaon.com/files/coin-master-hacks-for-free-spins_GM406889139.pdfIn PDF document text
    • http://www.salwangurgaon.com/files/free-robux-generator-2021-no-survey_GM431946152.pdfIn PDF document text
    • http://www.salwangurgaon.com/files/coin-master-daily-free-spins-link-app_GM406889139.pdfIn PDF document text
    • http://www.salwangurgaon.com/files/oprewards-com-roblox_GM431946152.pdfIn PDF document text
    • http://www.salwangurgaon.com/files/how-to-get-free-robux-no-verification_GM431946152.pdfIn PDF document text
    • http://www.salwangurgaon.com/files/free-robux-advertisment-site_GM431946152.pdfIn PDF document text
    • http://www.salwangurgaon.com/files/coin-master-facebook-hack_GM406889139.pdfIn PDF document text
    • http://www.salwangurgaon.com/files/how-can-i-play-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://www.salwangurgaon.com/files/haktuts-2021-coin-master-free-spin-link_GM406889139.pdfIn PDF document text
    • http://www.salwangurgaon.com/files/how-to-get-free-robux-codes-2021_GM431946152.pdfIn PDF document text
    • http://www.salwangurgaon.com/files/roblox-hack-apk_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006658.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6658 18464 bytes
SHA-256: 05a87c5e5a55dd1cacb71415224dc1225f286447460dff7243b727236e2d7549

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