Malicious PDF — malware analysis report

Static analysis result for SHA-256 69c26a51e64e9ac8…

MALICIOUS

PDF

33.5 KB Created: 2021-07-03 11:30:46 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 99763dcb3b513d8d04744a370e4a8d31 SHA-1: 44f0fd7f9cbedaa8084a2eb2a71e9ffe21c6c739 SHA-256: 69c26a51e64e9ac88c068699b8ce06b6cd51163aa642b3d163362a2838dfd3e1
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a prominent link to 'http://netcdn.tw/app/479516143/minecraft-pe-hack-client-ios-game-hack', presented as a download for game-related content. This, combined with the ML classifier's high confidence score, strongly suggests a malicious intent to trick the user into downloading a payload. The document body and embedded URLs reinforce this lure, indicating a phishing or social engineering attack.

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/479516143/minecraft-pe-hack-client-ios-game-hack In PDF document text
    • https://opac.heritagejkt.org/repository/free-roblox-face-mask_GM431946152.pdfIn PDF document text
    • https://opac.heritagejkt.org/repository/com-roblox_GM431946152.pdfIn PDF document text
    • https://opac.heritagejkt.org/repository/free-robux-websites-2021_GM431946152.pdfIn PDF document text
    • https://opac.heritagejkt.org//repository/free-robux-with-no-human-verification_GM431946152.pdfIn PDF document text
    • https://opac.heritagejkt.org/repository/coin-master-hack-account_GM406889139.pdfIn PDF document text
    • https://opac.heritagejkt.org/repository/roblox-pocket-edition-free-download_GM431946152.pdfIn PDF document text
    • https://opac.heritagejkt.org/repository/how-do-you-get-free-roblox-skins_GM431946152.pdfIn PDF document text
    • https://opac.heritagejkt.org/repository/coin-master-reward-link-2021_GM406889139.pdfIn PDF document text
    • https://opac.heritagejkt.org/repository/how-to-get-free-robux-hack-pc_GM431946152.pdfIn PDF document text
    • https://opac.heritagejkt.org/repository/how-to-hack-for-free-gamepasses-on-roblox_GM431946152.pdfIn PDF document text
    • https://opac.heritagejkt.org/repository/how-to-scam-on-roblox_GM431946152.pdfIn PDF document text
    • https://opac.heritagejkt.org/repository/free-roblox-school_GM431946152.pdfIn PDF document text
    • https://opac.heritagejkt.org//repository/free-robux-android_GM431946152.pdfIn PDF document text
    • https://opac.heritagejkt.org//repository/coin-master-free-coins-link-2021-deutsch_GM406889139.pdfIn PDF document text
    • https://opac.heritagejkt.org/repository/hack-roblox-void_GM431946152.pdfIn PDF document text
    • https://opac.heritagejkt.org/repository/get-free-robux-codes_GM431946152.pdfIn PDF document text
    • https://opac.heritagejkt.org/repository/one-piece-millenium-tutorial-roblox-get-free-evil-fruit_GM431946152.pdfIn PDF document text
    • https://opac.heritagejkt.org//repository/coin-master-free-spins-link-today-instagram_GM406889139.pdfIn PDF document text
    • https://opac.heritagejkt.org/repository/free-robux-no-survey-or-human-verification_GM431946152.pdfIn PDF document text
    • https://opac.heritagejkt.org/repository/cinnamon-hair-roblox-free_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_off00002efe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2EFE 22124 bytes
SHA-256: 7c42b4c07a4e153a5600ac65dc0b59ebeea91dd9b2e033ac5ac3157a925cf15d
font_01_sfnt_off00005ff0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5FF0 18396 bytes
SHA-256: 55df802e59d6610b41512bdd6f439a6918b0909585890d481d3eba566528df0e

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