Malicious PDF — malware analysis report

Static analysis result for SHA-256 05fe2be4107dfe79…

MALICIOUS

PDF

34.6 KB Created: 2021-07-06 06:49:45 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: b4376a5f6949bf1a9d3e6fd925dc9f2e SHA-1: aaa605b74144d2bcf368704507c9dab79ad78d2f SHA-256: 05fe2be4107dfe79c8cd0b86afaf397cfd519fccdcf87330a45853eda8a245cc
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links that redirect to malicious infrastructure, specifically promoting 'game hacks' and 'free generators' for popular games. The primary lure appears to be a 'Coin Master Game Hack Link' hosted on netcdn.tw, which is identified as a malicious redirector. The document body and embedded URLs strongly suggest a social engineering tactic to trick users into visiting potentially harmful sites, likely for further malware delivery or credential harvesting.

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-game-hack-link-game-hack In PDF document text
    • http://sttlets.education/senayan/repository/click-teleport-hack-roblox_GM431946152.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/how-to-get-25-robux-for-free-on-ipad_GM431946152.pdfIn PDF document text
    • http://sttlets.education/senayan//repository/promo-codes-for-free-robux_GM431946152.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/coin-master-free-spin-and-trading-group_GM406889139.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/hack-robux_GM431946152.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/how-to-get-free-clothes-on-roblox_GM431946152.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/cm-free-spins_GM406889139.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/how-to-get-roebucks_GM431946152.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/how-to-get-cheat-engine-on-roblox_GM431946152.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/hack-volar-roblox_GM431946152.pdfIn PDF document text
    • http://sttlets.education/senayan//repository/minecraft-windows-10-edition-free-download_GM479516143.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/pokemon-go-free-pokeballs-2021_GM1094591345.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/how-to-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/how-to-enter-paid-games-for-free-roblox_GM431946152.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/roblox-promocodes-for-free-robux_GM431946152.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/how-to-get-free-roebucks-without-verification_GM431946152.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/how-to-get-free-spins-on-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/free-limiteds-roblox_GM431946152.pdfIn PDF document text
    • http://sttlets.education/senayan//repository/how-to-get-free-robux-easy_GM431946152.pdfIn PDF document text
    • http://sttlets.education/senayan//repository/roblox-inappropriate-games_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
stream_002_off000030cd.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x30CD 23012 bytes
SHA-256: 98b73bb85c07f3aeaf4a252e80a92a1561aa516aeca8d0a46318f963f70a6d6d
font_01_sfnt_off00006474.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6474 18264 bytes
SHA-256: c1c21b29a6afb4d06e4d6845aa9afd5500216469eff45eb2d027be7bd9c24dc5

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