Malicious PDF — malware analysis report

Static analysis result for SHA-256 58483342cf787aab…

MALICIOUS

PDF

33.8 KB Created: 2021-07-09 15:17:02 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: afe14562ce55d3c0dfe2b422d971d6aa SHA-1: 5062f21e081611f043c6b5b783bd9bfe38388f03 SHA-256: 58483342cf787aabb17cfeeb503fa5b5f2af483574562ece5aeb8220ca649c09
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.001 User Execution: Malicious Link

This PDF document contains multiple links to known malicious redirectors and infrastructure, specifically targeting users interested in game hacks and exploits. The document body and embedded URLs suggest a lure for 'Coin Master' and 'Roblox' related cheats, which ultimately redirect to malicious sites. The presence of multiple redirector links and the ML classifier's high confidence score indicate a malicious intent to lead users to potentially harmful content or further malware delivery.

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/406889139/coin-master-hack-uk-game-hack In PDF document text
    • https://ciudadata.ec/images/ckfinder/files/how-to-get-free-gamepasses-on-roblox-2021-pastebin_GM431946152.pdfIn PDF document text
    • https://ciudadata.ec/images/ckfinder/files/free-hacks-for-roblox-2021_GM431946152.pdfIn PDF document text
    • https://ciudadata.ec/images/ckfinder/files/roblox-robux-hack-134_GM431946152.pdfIn PDF document text
    • https://ciudadata.ec/images/ckfinder/files/infinite-robux_GM431946152.pdfIn PDF document text
    • https://ciudadata.ec/images/ckfinder/files/free-robux-glitch_GM431946152.pdfIn PDF document text
    • https://ciudadata.ec/images/ckfinder/files/free-robux-website-bloxburg_GM431946152.pdfIn PDF document text
    • https://ciudadata.ec/images/ckfinder/files/coin-drop-master-free_GM406889139.pdfIn PDF document text
    • https://ciudadata.ec/images/ckfinder/files/roblox-free-robux-generator-apphackonline_GM431946152.pdfIn PDF document text
    • https://ciudadata.ec/images/ckfinder/files/hacking-code-text-chat-roblox_GM431946152.pdfIn PDF document text
    • https://ciudadata.ec/images/ckfinder/files/coin-master-daily-spin-free_GM406889139.pdfIn PDF document text
    • https://ciudadata.ec/images/ckfinder/files/roblox-robux-generator-tool_GM431946152.pdfIn PDF document text
    • https://ciudadata.ec/images/ckfinder/files/coin-master-daily-gift-free-spins-and-coins-link_GM406889139.pdfIn PDF document text
    • https://ciudadata.ec/images/ckfinder/files/how-to-hack-someone-account-on-roblox-2021_GM431946152.pdfIn PDF document text
    • https://ciudadata.ec/images/ckfinder/files/how-to-make-a-modded-minecraft-server-for-free_GM479516143.pdfIn PDF document text
    • https://ciudadata.ec/images/ckfinder/files/best-free-robux-sites_GM431946152.pdfIn PDF document text
    • https://ciudadata.ec/images/ckfinder/files/free-roblox-codes-website_GM431946152.pdfIn PDF document text
    • https://ciudadata.ec/images/ckfinder/files/coin-master-3rd-village-free-2021-gift-card_GM406889139.pdfIn PDF document text
    • https://ciudadata.ec/images/ckfinder/files/ant-free-robux_GM431946152.pdfIn PDF document text
    • https://ciudadata.ec/images/ckfinder/files/how-to-hack-somebody-in-roblox_GM431946152.pdfIn PDF document text
    • https://ciudadata.ec/images/ckfinder/files/roblox-with-commands-hack_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_off0000302c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x302C 22236 bytes
SHA-256: b1aefab079e1a4b8c88e21a14652fb3be9d7e6ee0a74e68af0b606f41750aaf8
font_01_sfnt_off0000619b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x619B 18192 bytes
SHA-256: 5a1314554b862e463104f1d7a36b57872b05aaf837fd88a512663257e0a14472

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