Malicious PDF — malware analysis report

Static analysis result for SHA-256 3ade4ad89b31e4ba…

MALICIOUS

PDF

35.8 KB Created: 2021-06-26 00:20:20 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 737db011b435f447e66292b68d7c4491 SHA-1: bcac263a3f2e4f5c06e86d01a8753c853a749fa0 SHA-256: 3ade4ad89b31e4ba37c66b6d8d50fd5428c18b35fd7412241e4014bac4fdbd74
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to known malicious redirectors and potentially malicious PDF files, all related to game hacks and generators. The document body explicitly mentions 'Free Robux Hack Generator 2021 No Human Verification' and includes URLs that reinforce this lure. The presence of these links and the lure suggest the document is designed to redirect users to sites that may host further malware or phishing content.

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/free-robux-hack-generator-2021-no-human-verification-game-hack In PDF document text
    • http://vedrachemicals.ro/images/hack-roblox-boogy_GM431946152.pdfIn PDF document text
    • http://vedrachemicals.ro/images/how-to-hack-roblox-to-get-robux_GM431946152.pdfIn PDF document text
    • http://vedrachemicals.ro/images/free-tiktok-likes-and-followers_GM835599320.pdfIn PDF document text
    • http://vedrachemicals.ro/images/free-roblox-exploits-2021_GM431946152.pdfIn PDF document text
    • http://vedrachemicals.ro/images/robux-cheat-2021_GM431946152.pdfIn PDF document text
    • http://vedrachemicals.ro/images/how-do-you-hack-on-roblox-2021_GM431946152.pdfIn PDF document text
    • http://vedrachemicals.ro/images/free-song-codes-for-roblox_GM431946152.pdfIn PDF document text
    • http://vedrachemicals.ro/images/instant-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://vedrachemicals.ro/images/coin-master-hacker-club_GM406889139.pdfIn PDF document text
    • http://vedrachemicals.ro/images/roblox-hack-download-jailbreak-noclip_GM431946152.pdfIn PDF document text
    • http://vedrachemicals.ro/images/orewards-com-free-robux_GM431946152.pdfIn PDF document text
    • http://vedrachemicals.ro/images/can-you-hack-robux-in_GM431946152.pdfIn PDF document text
    • http://vedrachemicals.ro/images/google-roblox-extension-hacker_GM431946152.pdfIn PDF document text
    • http://vedrachemicals.ro/images/roblox-lets-party-gear-testing-speed-and-jump-hack_GM431946152.pdfIn PDF document text
    • http://vedrachemicals.ro/images/download-minecraft-free-hiapphere_GM479516143.pdfIn PDF document text
    • http://vedrachemicals.ro/images/coin-master-hack-spins-android_GM406889139.pdfIn PDF document text
    • http://vedrachemicals.ro/images/real-robux-codes_GM431946152.pdfIn PDF document text
    • http://vedrachemicals.ro/images/free-robux-finish-obby_GM431946152.pdfIn PDF document text
    • http://vedrachemicals.ro/images/how-to-get-800-robux-for-free_GM431946152.pdfIn PDF document text
    • http://vedrachemicals.ro/images/roblox-promo-code-to-get-free-robux_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_off000031d4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x31D4 22688 bytes
SHA-256: 54302a7e683b4700c1e9ed759161241bc7123b4f285bfd9fd3b4dc7883808e83
font_01_sfnt_off0000645b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x645B 19908 bytes
SHA-256: 26a6ae8feb0a5eba93c0069729b1006a8dbe08daefb813553e09897b5654cca0

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