Malicious PDF — malware analysis report

Static analysis result for SHA-256 fe6aba3475d317be…

MALICIOUS

PDF

34.6 KB Created: 2021-06-29 00:47:32 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: d764737d1498e2243c8b034f46b6ef83 SHA-1: d4340caf8ef69f57845481315ed67a904ec33f61 SHA-256: fe6aba3475d317beabc16dcc83fcd4817accfadda9f1f42f909e9c04ecd2a23d
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to a known malicious redirector, disguised as a 'free generator / game hack' lure for Robux. The document body and embedded URLs strongly suggest a phishing or scam attempt to trick users into visiting malicious websites. While no scripts were explicitly extracted, the PDF structure and the nature of the links indicate a high likelihood of further malicious activity, such as downloading additional payloads or leading to credential harvesting pages.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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 http://netcdn.co/app/431946152/how-do-you-hack-roblox-to-get-free-robux-game-hack In PDF document text
    • http://www.thalanghospital.go.th/UserFiles/File/free-model-scanner-roblox_GM431946152.pdfIn PDF document text
    • http://www.thalanghospital.go.th/UserFiles/File/real-robux-generator-2021_GM431946152.pdfIn PDF document text
    • http://www.thalanghospital.go.th/UserFiles/File/get-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • http://www.thalanghospital.go.th/UserFiles/File/coin-master-free-spin-and-trading_GM406889139.pdfIn PDF document text
    • http://www.thalanghospital.go.th/UserFiles/File/rbx-land-free-robux_GM431946152.pdfIn PDF document text
    • http://www.thalanghospital.go.th/UserFiles/File/free-roblox-intro-template_GM431946152.pdfIn PDF document text
    • http://www.thalanghospital.go.th/UserFiles/File/roblox-dominus-prae-pfp-free-to-use_GM431946152.pdfIn PDF document text
    • http://www.thalanghospital.go.th/UserFiles/File/free-robux-generator-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • http://www.thalanghospital.go.th/UserFiles/File/free-robux-generator-that-really-works-right-away_GM431946152.pdfIn PDF document text
    • http://www.thalanghospital.go.th/UserFiles/File/unicorn-cheat-in-roblox_GM431946152.pdfIn PDF document text
    • http://www.thalanghospital.go.th/UserFiles/File/can-i-get-robux-for-free_GM431946152.pdfIn PDF document text
    • http://www.thalanghospital.go.th/UserFiles/File/free-roblox-gift-card_GM431946152.pdfIn PDF document text
    • http://www.thalanghospital.go.th/UserFiles/File/robux-hack-without-human-verification-pc_GM431946152.pdfIn PDF document text
    • http://www.thalanghospital.go.th/UserFiles/File/free-draw-2-roblox_GM431946152.pdfIn PDF document text
    • http://www.thalanghospital.go.th/UserFiles/File/free-robux-2021-no-scam_GM431946152.pdfIn PDF document text
    • http://www.thalanghospital.go.th/UserFiles/File/how-to-buy-robux-for-free_GM431946152.pdfIn PDF document text
    • http://www.thalanghospital.go.th/UserFiles/File/how-to-get-free-robux-without-human-verification_GM431946152.pdfIn PDF document text
    • http://www.thalanghospital.go.th/UserFiles/File/how-many-levels-are-there-in-coin-master_GM406889139.pdfIn PDF document text
    • http://www.thalanghospital.go.th/UserFiles/File/robux-money_GM431946152.pdfIn PDF document text
    • http://www.thalanghospital.go.th/UserFiles/File/how-to-get-free-robux-without-email_GM431946152.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_off00002e69.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2E69 22464 bytes
SHA-256: fa4ad1e3f81c2d115463a9fa7d946d1041399103388ef402d26c37233a3b133d
font_01_sfnt_off000060a0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60A0 19560 bytes
SHA-256: bcf96d16b1274645d6b5697b42e9a02984136efa2c57cf9c559b6b8be4ffe94e

Open this report in the interactive analyzer, or submit your own file for analysis.