Malicious PDF — malware analysis report

Static analysis result for SHA-256 128dac66c171bee4…

MALICIOUS

PDF

42.3 KB Created: 2021-05-16 06:36:05 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: c6f97725f0867b9434ddbe7dbb041609 SHA-1: 5a5518b7214d609b662d834de36c9063f811c4d2 SHA-256: 128dac66c171bee45898ca310f502ebe1865c2b79d6a42312a0411125574d27b
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to known malicious redirectors and websites offering game hacks and free currency, indicating a phishing or malware distribution lure. The presence of embedded URLs and the ML classifier's high confidence score support this assessment. No scripts were extracted, but the document's structure and embedded links suggest it is designed to trick users into visiting malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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/roblox-hack-codes-game-hack In PDF document text
    • https://fordogtrainers.mx:443/images/free-robux-only-1-step_GM431946152.pdfIn PDF document text
    • https://fordogtrainers.mx:443/images/wahoogaming-co-free-robux_GM431946152.pdfIn PDF document text
    • https://fordogtrainers.mx:443/images/free-roblox-characters_GM431946152.pdfIn PDF document text
    • https://fordogtrainers.mx:443/images/free-roblox-accounts-with-robux-that-work-not-banned-2021_GM431946152.pdfIn PDF document text
    • https://fordogtrainers.mx:443/images/free-coins-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://fordogtrainers.mx:443/images/free-roblox-hack-us_GM431946152.pdfIn PDF document text
    • https://fordogtrainers.mx:443/images/minecraft-story-mode-free-download_GM479516143.pdfIn PDF document text
    • https://fordogtrainers.mx:443/images/windows-10-minecraft-hacks_GM479516143.pdfIn PDF document text
    • https://fordogtrainers.mx:443/images/roblox-hack-me-robux_GM431946152.pdfIn PDF document text
    • https://fordogtrainers.mx:443/images/free-robux-pins_GM431946152.pdfIn PDF document text
    • https://fordogtrainers.mx:443/images/coin-master-daily-free-spins-link-today-twitter_GM406889139.pdfIn PDF document text
    • https://fordogtrainers.mx:443/images/old-roblox-accounts-for-free_GM431946152.pdfIn PDF document text
    • https://fordogtrainers.mx:443/images/free-roblox-accounts_GM431946152.pdfIn PDF document text
    • https://fordogtrainers.mx:443/images/roblox-lovenet_GM431946152.pdfIn PDF document text
    • https://fordogtrainers.mx:443/images/how-to-get-free-robux-not-a-scam_GM431946152.pdfIn PDF document text
    • https://fordogtrainers.mx:443/images/free-robux-without-human-verification_GM431946152.pdfIn PDF document text
    • https://fordogtrainers.mx:443/images/daily-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://fordogtrainers.mx:443/images/robux-converter_GM431946152.pdfIn PDF document text
    • https://fordogtrainers.mx:443/images/how-to-become-a-hacker-in-roblox_GM431946152.pdfIn PDF document text
    • https://fordogtrainers.mx:443/images/2021-free-spins-coin-master_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
stream_003_off000047bb.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x47BB 25836 bytes
SHA-256: 9d1e4d5c2988c4cf76231c168e5c53f0291beaf306fb9e8c12a86c366ad6c263
font_01_sfnt_off000082aa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x82AA 18356 bytes
SHA-256: 248f759c619fe1c96c576728ba71c16d7d0933fc88833f740ae7987d47f6eb68