Malicious PDF — malware analysis report

Static analysis result for SHA-256 6d09f832dc1e898b…

MALICIOUS

PDF

34.3 KB Created: 2021-07-07 05:15:54 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: ca5411bcfa8bbd0a73f7ddb61cc3a2bf SHA-1: 79a4e2327ddbcd85f0d9ab97ba93eb14e3690b0c SHA-256: 6d09f832dc1e898bfe413ee8dc6821af61e7ef9ad460c100b1465e960b14ac5f
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a lure of free in-game items and hacks for popular games to entice users. It contains multiple links to known malicious redirector infrastructure, specifically http://netcdn.tw/app/431946152/how-to-get-free-faces-on-roblox-game-hack, which is designed to lead users to potentially harmful content. The presence of a 'download button' heuristic further supports the malicious intent of directing users to external resources.

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.tw/app/431946152/how-to-get-free-faces-on-roblox-game-hack In PDF document text
    • http://energyx.com.tw/image/data/files/wurst-minecraft_GM479516143.pdfIn PDF document text
    • http://energyx.com.tw/image/data/files/free-spins-for-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://energyx.com.tw/image/data/files/how-to-get-free-robux-easy_GM431946152.pdfIn PDF document text
    • http://energyx.com.tw/image/data/files/how-to-get-free-coins-on-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://energyx.com.tw/image/data/files/roblox-hack-unlimited-robux_GM431946152.pdfIn PDF document text
    • http://energyx.com.tw/image/data/files/free-roblox-hacker-no-human-verification_GM431946152.pdfIn PDF document text
    • http://energyx.com.tw/image/data/files/how-to-get-a-refund-on-roblox-2021_GM431946152.pdfIn PDF document text
    • http://energyx.com.tw/image/data/files/hack-roblox-traspasar-paredes_GM431946152.pdfIn PDF document text
    • http://energyx.com.tw/image/data/files/free-minecraft-resource-packs_GM479516143.pdfIn PDF document text
    • http://energyx.com.tw/image/data/files/coin-master-3533-android-hack_GM406889139.pdfIn PDF document text
    • http://energyx.com.tw/image/data/files/coin-master-hack-twitter_GM406889139.pdfIn PDF document text
    • http://energyx.com.tw/image/data/files/free-100-robux_GM431946152.pdfIn PDF document text
    • http://energyx.com.tw/image/data/files/roblox-cute-outfits-free_GM431946152.pdfIn PDF document text
    • http://energyx.com.tw/image/data/files/roblox-free-fraw_GM431946152.pdfIn PDF document text
    • http://energyx.com.tw/image/data/files/roblox-jailbreak-lamborghini-hack_GM431946152.pdfIn PDF document text
    • http://energyx.com.tw/image/data/files/free-coins-for-flip-master-online_GM406889139.pdfIn PDF document text
    • http://energyx.com.tw/image/data/files/how-to-get-free-coins-in-mcpe-master_GM406889139.pdfIn PDF document text
    • http://energyx.com.tw/image/data/files/heroes-online-roblox_GM431946152.pdfIn PDF document text
    • http://energyx.com.tw/image/data/files/roblox-cheats-devloper-console_GM431946152.pdfIn PDF document text
    • http://energyx.com.tw/image/data/files/huskybuckscom-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_off00002f7f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F7F 22400 bytes
SHA-256: 83ef4217ed5ac6945b3751e011d34f042eed43b0ee4d6d8ae2c3b853d6642224
font_01_sfnt_off00006143.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6143 18920 bytes
SHA-256: 00c79969d0c75dbbb9ecf9a1f728684ae243c0a0135462a4dcbc6110ca52f14c

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