Malicious PDF — malware analysis report

Static analysis result for SHA-256 4d3cdd11b05a2f25…

MALICIOUS

PDF

32.4 KB Created: 2021-07-20 10:22:29 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 555694b34126f0975b01ef373b8c501b SHA-1: 675f8a6b4815cc86f78ef3a0fc2d92ca16ad2aa6 SHA-256: 4d3cdd11b05a2f25eca368ded43c5fc45f9ced5eaca3354328d22998d767d842
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded links and a call-to-action phrase, directing users to websites offering 'free generators' and 'game hacks'. These links likely serve as a lure to download malicious payloads or redirect to phishing sites. The ML classifier also flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9900

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/431946152/free-roblox-accounts-with-robux-2021-game-hack PDF link annotation
    • http://peche-madagascar.com/images/free-spin-in-coin-master_GM406889139.pdfIn PDF document text
    • http://peche-madagascar.com/images/coin-master-claim-free-spins_GM406889139.pdfIn PDF document text
    • http://peche-madagascar.com/images/hack-robux_GM431946152.pdfIn PDF document text
    • http://peche-madagascar.com/images/coin-master-free-daily-spins-and-coins_GM406889139.pdfIn PDF document text
    • http://peche-madagascar.com/images/free-robux-roblox-promo-codes_GM431946152.pdfIn PDF document text
    • http://peche-madagascar.com/images/free-spins-for-coin-master-app_GM406889139.pdfIn PDF document text
    • http://peche-madagascar.com/images/free-robux-gift-card-codes-2021_GM431946152.pdfIn PDF document text
    • http://peche-madagascar.com/images/free-minecraft-printables_GM479516143.pdfIn PDF document text
    • http://peche-madagascar.com/images/coin-master-daily-free-spins-link-app_GM406889139.pdfIn PDF document text
    • http://peche-madagascar.com/images/free-minecraft-pe-server_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
font_00_sfnt_off000027fd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x27FD 22312 bytes
SHA-256: 86a77aa82fbdab65653eabc44345f89b6b1368089d0b6cec387fa77a374df1ac
font_01_sfnt_off000059ba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x59BA 19264 bytes
SHA-256: c0014411b3316b3a561a35e78707775e6583f40bd975b442ad0ffc94000f9b28

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