Malicious PDF — malware analysis report

Static analysis result for SHA-256 fc134fe2f8415a3e…

MALICIOUS

PDF

35.7 KB Created: 2021-05-22 20:36:45 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-25
MD5: 84e13a7246d3b03278a39dd8a8ed884a SHA-1: 6fd3cbd89512238fa0647237cde5493881aea8a0 SHA-256: fc134fe2f8415a3e318818ff70e72fb5b5c4cf6262677859e1dd23f8d44f6a2b
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links designed to lure users into clicking on them by promising game-related hacks or generators. The primary malicious link redirects to infrastructure known for hosting malicious content. While no scripts were directly extracted, the PDF's structure and embedded links strongly suggest a phishing or redirection attack aimed at users interested in online games.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9648

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector critical 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. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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
  • 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/431946152/free-roblox-hack-game-hack In PDF document text
    • https://www.milewood.co.uk/images/free-shirt-templates-roblox_GM431946152.pdfIn PDF document text
    • https://www.milewood.co.uk/images/hack-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://www.milewood.co.uk/images/minecraft-free-download-no-virus_GM479516143.pdfIn PDF document text
    • https://www.milewood.co.uk/images/free-vip-roblox_GM431946152.pdfIn PDF document text
    • https://www.milewood.co.uk/images/coin-master-free-spins-link-2021-today_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
font_00_sfnt_off0000308a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x308A 24944 bytes
SHA-256: 5b315ab743d9743c1fdab81322c8243eee3748db3277d4dd71b438e33ea75cb4
font_01_sfnt_off00006a2e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6A2E 18344 bytes
SHA-256: 9d921b2eee93f33e2efc5c53c848117e08d630d06cf868d7193b51dd4894dd93

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