Malicious PDF — malware analysis report

Static analysis result for SHA-256 0ca049ac3ed5409f…

MALICIOUS

PDF

46.4 KB Created: 2021-06-04 04:08:05 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 5cc64f4c353654e128799655493a0f1e SHA-1: 7d73137286df87a2f22246193c9395ce42324a6f SHA-256: 0ca049ac3ed5409f09eecf686f141c92f17539e5a6e76a9eac06f9928c38b296
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links that redirect to malicious infrastructure, specifically promoting 'free generator / game hack' lures. The document body and heuristics indicate a clear intent to trick users into clicking these links, likely leading to further malware or phishing. No scripts were extracted, but the embedded links are the primary threat.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9832

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.online/app/431946152/robux-free-robux-game-hack In PDF document text
    • http://abdinusababellibrary.ac.id//repository/free-mods-for-minecraft-pe_GM479516143.pdfIn PDF document text
    • http://abdinusababellibrary.ac.id//repository/free-coin-master-spins-2021_GM406889139.pdfIn PDF document text
    • http://abdinusababellibrary.ac.id//repository/master-coin-free-spin_GM406889139.pdfIn PDF document text
    • http://abdinusababellibrary.ac.id//repository/games-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://abdinusababellibrary.ac.id//repository/pokemon-go-free-candy-hack_GM1094591345.pdfIn PDF document text
    • http://abdinusababellibrary.ac.id//repository/play-minecraft-for-free-on-pc_GM479516143.pdfIn PDF document text
    • http://abdinusababellibrary.ac.id//repository/how-to-hack-someones-roblox-account-2021_GM431946152.pdfIn PDF document text
    • http://abdinusababellibrary.ac.id//repository/moon-static-coin-master-generator-hacks-free_GM406889139.pdfIn PDF document text
    • http://abdinusababellibrary.ac.id//repository/coin-master-free-attack_GM406889139.pdfIn PDF document text
    • http://abdinusababellibrary.ac.id//repository/blox-land-free-robux_GM431946152.pdfIn PDF document text
    • http://abdinusababellibrary.ac.id//repository/free-robux-games_GM431946152.pdfIn PDF document text
    • http://abdinusababellibrary.ac.id//repository/free-robux-without-human-verification-real_GM431946152.pdfIn PDF document text
    • http://abdinusababellibrary.ac.id//repository/how-to-install-minecraft-for-free-on-ios_GM479516143.pdfIn PDF document text
    • http://abdinusababellibrary.ac.id//repository/roblox-rewards_GM431946152.pdfIn PDF document text
    • http://abdinusababellibrary.ac.id//repository/coin-master-link-daily-get-free-spins-amp_GM406889139.pdfIn PDF document text
    • http://abdinusababellibrary.ac.id//repository/my-roblox-avatar_GM431946152.pdfIn PDF document text
    • http://abdinusababellibrary.ac.id//repository/free-robux-for-kids_GM431946152.pdfIn PDF document text
    • http://abdinusababellibrary.ac.id/repository/free-tiktok-coins_GM835599320.pdfIn PDF document text
    • http://abdinusababellibrary.ac.id//repository/pokemon-go-free-km_GM1094591345.pdfIn PDF document text
    • http://abdinusababellibrary.ac.id//repository/websites-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://collectrobuxIn 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_004_off00005084.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5084 29704 bytes
SHA-256: 0d3b7d246cccb85aa2997ef1325f8c99cddd02800b0c708a3751afd7149a9a37
font_01_sfnt_off000093eb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x93EB 18012 bytes
SHA-256: 3f1ded8a9c51e4f0f41c660fd84d3573ebe8f92a83837bcaa523a9614d650e73