Malicious PDF — malware analysis report

Static analysis result for SHA-256 a4deec225fc47ec1…

MALICIOUS

PDF

42.5 KB Created: 2021-05-15 02:11:19 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 5e6c0cfb7096eee1702236b664e6f2b7 SHA-1: 7a69287e16d82f615ba34410d888e7c73245c65b SHA-256: a4deec225fc47ec1fe3a61bfd75cecffd4e1e3512b68337bb4b3d16e6707a81c
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a common lure, promising free game currency or hacks to entice users into clicking malicious links. The primary link redirects to infrastructure known for distributing malware or engaging in phishing activities. While no scripts were directly extracted, the PDF structure and embedded URLs strongly indicate a malicious redirection workflow designed to compromise users.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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 https://netcdn.xyz/app/431946152/bux-life-free-robux-game-hack In PDF document text
    • http://xn--80aeb7bbceeegc.xn--p1ai/images/_GM479516143.pdfIn PDF document text
    • http://xn--80aeb7bbceeegc.xn--p1ai/images/free-robux-apps-that-work_GM431946152.pdfIn PDF document text
    • http://xn--80aeb7bbceeegc.xn--p1ai/images/free-spin-coin-master-game_GM406889139.pdfIn PDF document text
    • http://xn--80aeb7bbceeegc.xn--p1ai/images/robux-free-co_GM431946152.pdfIn PDF document text
    • http://xn--80aeb7bbceeegc.xn--p1ai/images/freecoins_GM406889139.pdfIn PDF document text
    • http://xn--80aeb7bbceeegc.xn--p1ai/images/coin-master-free-spins-uk_GM406889139.pdfIn PDF document text
    • http://xn--80aeb7bbceeegc.xn--p1ai/images/clean-master-coins-hack_GM406889139.pdfIn PDF document text
    • http://xn--80aeb7bbceeegc.xn--p1ai/images/free-robux-real-working_GM431946152.pdfIn PDF document text
    • http://xn--80aeb7bbceeegc.xn--p1ai/images/blogger-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://xn--80aeb7bbceeegc.xn--p1ai/images/guide--coin-master-free-tips_GM406889139.pdfIn PDF document text
    • http://xn--80aeb7bbceeegc.xn--p1ai/images/roblox-adopt-me-free-pets_GM431946152.pdfIn PDF document text
    • http://xn--80aeb7bbceeegc.xn--p1ai/images/free-robux-websites-2021_GM431946152.pdfIn PDF document text
    • http://xn--80aeb7bbceeegc.xn--p1ai/images/free-roblox-gift-card-codes-2021-unused_GM431946152.pdfIn PDF document text
    • http://xn--80aeb7bbceeegc.xn--p1ai/images/robux-withdraw_GM431946152.pdfIn PDF document text
    • http://xn--80aeb7bbceeegc.xn--p1ai/images/coin-master-free-spin-best-link_GM406889139.pdfIn PDF document text
    • http://xn--80aeb7bbceeegc.xn--p1ai/images/how-to-download-minecraft-for-free-on-windows_GM479516143.pdfIn PDF document text
    • http://xn--80aeb7bbceeegc.xn--p1ai/images/how-to-get-robux-easy_GM431946152.pdfIn PDF document text
    • http://xn--80aeb7bbceeegc.xn--p1ai/images/minecraft-pe-hack-client_GM479516143.pdfIn PDF document text
    • http://xn--80aeb7bbceeegc.xn--p1ai/images/free-robux-codes-2021-real_GM431946152.pdfIn PDF document text
    • http://xn--80aeb7bbceeegc.xn--p1ai/images/free-robux-com_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_off00004a02.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4A02 25376 bytes
SHA-256: f722940ef312cdc065568a247abe3c7a37b74a6931bbbf393b548e144b1d4701
font_01_sfnt_off00008440.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8440 18136 bytes
SHA-256: 29dc967668ee0d992c179c4e94ca6f9cb219d50b5ccf800f63d20fdab69e699e

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