Malicious PDF — malware analysis report

Static analysis result for SHA-256 9fb8364bc8248ee3…

MALICIOUS

PDF

35.5 KB Created: 2021-06-26 04:55:14 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 4ec1dc200ec2c66b94b8885123153c31 SHA-1: 30e1e2f4be6e7b4067be5af78498608c5f64789e SHA-256: 9fb8364bc8248ee394b70cd755ceb6d0473c49e268617dcb978aee4a18397da4
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded URLs, with a primary redirector identified as malicious. The document body and heuristic firings indicate a lure for game hacks or cheats, designed to trick users into visiting these malicious links. The ML classifier strongly supports the malicious nature of this PDF.

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/dansploit-hack-para-roblox-game-hack In PDF document text
    • https://alimi.com.tw/upload/files/roblox-island-royale-money-hack_GM431946152.pdfIn PDF document text
    • https://alimi.com.tw/upload/files/how-to-use-cheat-engine-on-roblox-67_GM431946152.pdfIn PDF document text
    • https://alimi.com.tw/upload/files/pubg-700-site_GM1330123889.pdfIn PDF document text
    • https://alimi.com.tw/upload/files/how-to-get-free-likes-on-tiktok_GM835599320.pdfIn PDF document text
    • https://alimi.com.tw/upload/files/coin-master-cheat-codes_GM406889139.pdfIn PDF document text
    • https://alimi.com.tw/upload/files/tlcharger-emperor-logiciel-hack-roblox_GM431946152.pdfIn PDF document text
    • https://alimi.com.tw/upload/files/daily-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://alimi.com.tw/upload/files/minecraft-mod-menu-apk_GM479516143.pdfIn PDF document text
    • https://alimi.com.tw/upload/files/how-to-hack-coin-master-without-root_GM406889139.pdfIn PDF document text
    • https://alimi.com.tw/upload/files/free-robux-codes-no-verification_GM431946152.pdfIn PDF document text
    • https://alimi.com.tw/upload/files/coin-master-cheats-for-free-spins_GM406889139.pdfIn PDF document text
    • https://alimi.com.tw/upload/files/big-brother-roblox-exploits-free_GM431946152.pdfIn PDF document text
    • https://alimi.com.tw/upload/files/how-to-get-free-chest-in-coin-master_GM406889139.pdfIn PDF document text
    • https://alimi.com.tw/upload/files/best-minecraft-hacked-client-2021_GM479516143.pdfIn PDF document text
    • https://alimi.com.tw/upload/files/roblox-free-robux-com_GM431946152.pdfIn PDF document text
    • https://alimi.com.tw/upload/files/coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • https://alimi.com.tw/upload/files/roblox-hacked-com-2021_GM431946152.pdfIn PDF document text
    • https://alimi.com.tw/upload/files/how-to-get-robux-on-roblox-free-2021_GM431946152.pdfIn PDF document text
    • https://alimi.com.tw/upload/files/coin-master-tiradas-gratis-2021_GM406889139.pdfIn PDF document text
    • https://alimi.com.tw/upload/files/how-to-get-a-cape-in-minecraft-for-free_GM479516143.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_off00003253.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3253 22612 bytes
SHA-256: 634adaca3a5b055441966da1683f25b8cb66254389d76c41a1d7bfb7a762f462
font_01_sfnt_off000064c8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x64C8 19376 bytes
SHA-256: 49ffd79d9adebd83aa7cc96c2ef9d41b6ea467cc9d631214efdb29bbefef32d2