Malicious PDF — malware analysis report

Static analysis result for SHA-256 0ef012d7178c1019…

MALICIOUS

PDF

35.9 KB Created: 2021-06-30 01:33:36 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: c27e10c240f479a2fe5422f8d6108ff0 SHA-1: ade629b32ed2efe48ddbe2c0daccc378830ee2ab SHA-256: 0ef012d7178c10190ee8f31415ea47a359b8a99fcf3b38742cbaefd3a682e3de
200 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF document employs a lure of free game hacks and generators, impersonating Netflix to trick users into clicking malicious links. The primary link directs to a known malicious redirector infrastructure, which likely serves as a gateway to download further malicious content. The document's structure and embedded URLs strongly suggest it's part of a phishing or malware distribution campaign.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 5

  • 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.
  • Brand-impersonation credential phishing lure high SE_BRAND_CREDENTIAL_PHISH
    Document impersonates a well-known consumer brand and uses account-security / verification language ('unusual activity', 'account on hold', 'verify your account') to steer the reader to a credential-harvesting link. Corroborated by: call-to-action link host does not match the impersonated brand: http://netcdn.co/app/431946152/free-vip-server-roblox-lumber-tycoon-2-game-hack.
  • 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/free-vip-server-roblox-lumber-tycoon-2-game-hack In PDF document text
    • http://library.acehresearch.org/repository/ac-market-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://library.acehresearch.org/repository/roblox-free-robux-club_GM431946152.pdfIn PDF document text
    • http://library.acehresearch.org/repository/how-to-hack-a-minecraft-account_GM479516143.pdfIn PDF document text
    • http://library.acehresearch.org/repository/how-to-get-free-spins-on-coin-master-without-verification_GM406889139.pdfIn PDF document text
    • http://library.acehresearch.org/repository/how-to-hack-any-roblox-games-unlimited-health_GM431946152.pdfIn PDF document text
    • http://library.acehresearch.org/repository/coin-master-free-400-spin-link_GM406889139.pdfIn PDF document text
    • http://library.acehresearch.org/repository/freespins-coin-master_GM406889139.pdfIn PDF document text
    • http://library.acehresearch.org/repository/roblox-strucid-hack-aimbot_GM431946152.pdfIn PDF document text
    • http://library.acehresearch.org/repository/free-robux-real_GM431946152.pdfIn PDF document text
    • http://library.acehresearch.org/repository/autospin-hack-roblox-pastebin_GM431946152.pdfIn PDF document text
    • http://library.acehresearch.org/repository/free-robux-codes-no-verification-or-survey_GM431946152.pdfIn PDF document text
    • http://library.acehresearch.org/repository/coin-master-link-today_GM406889139.pdfIn PDF document text
    • http://library.acehresearch.org/repository/www-pastebin-com-raw-free-robux-v5_GM431946152.pdfIn PDF document text
    • http://library.acehresearch.org/repository/how-to-hack-roblox-accounts-2021_GM431946152.pdfIn PDF document text
    • http://library.acehresearch.org/repository/hack-para-cambiar-tu-nombre-en-roblox_GM431946152.pdfIn PDF document text
    • http://library.acehresearch.org/repository/free-roblox-gift-card_GM431946152.pdfIn PDF document text
    • http://library.acehresearch.org/repository/coin-master-apk-hack-2021-ios_GM406889139.pdfIn PDF document text
    • http://library.acehresearch.org/repository/pubg-uc-2021_GM1330123889.pdfIn PDF document text
    • http://library.acehresearch.org/repository/minecraft-free-play-now_GM479516143.pdfIn PDF document text
    • http://library.acehresearch.org/repository/generateur-robux-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_off00003252.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3252 22700 bytes
SHA-256: 2c3650762324659481ed31772a846de5bc569b7040bd7615e3596cca5ee54579
font_01_sfnt_off000064dd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x64DD 19900 bytes
SHA-256: 274f56c4949a8778b2b7ed940670e921b00c3b4db76b184f93e0b7601d866fcd

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