Malicious PDF — malware analysis report

Static analysis result for SHA-256 f0f12213b7dc0043…

MALICIOUS

PDF

32.4 KB Created: 2021-07-06 10:54:49 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 6f6e373499fa468fbcf7cc74de8c6920 SHA-1: aa32ab3c6bd0a3449248bf2a519e27baa0e04e24 SHA-256: f0f12213b7dc0043e382a1f3b88f9dc75e64b84d5e444f2b6d73559fc472754f
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains embedded links that redirect to a malicious URL, identified as a "free generator / game hack" lure. This is a common tactic to trick users into visiting potentially harmful websites. The ML classifier also strongly indicated maliciousness. No scripts were extracted, but the embedded URLs and the nature of the lure suggest a phishing or scam attempt.

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-java-free-account-game-hack In PDF document text
    • http://lib.unar.ac.id//repository/how-to-get-free-cards-for-coin-master_GM406889139.pdfIn PDF document text
    • http://lib.unar.ac.id/repository/400-million-robux-free_GM431946152.pdfIn PDF document text
    • http://lib.unar.ac.id/repository/roblox-hack-app_GM431946152.pdfIn PDF document text
    • http://lib.unar.ac.id//repository/how-do-you-earn-free-coins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://lib.unar.ac.id/repository/free-robux-without-human-verification_GM431946152.pdfIn PDF document text
    • http://lib.unar.ac.id/repository/how-to-get-minecraft-for-free-on-iphone_GM479516143.pdfIn PDF document text
    • http://lib.unar.ac.id//repository/free-roblox-clothes_GM431946152.pdfIn PDF document text
    • http://lib.unar.ac.id/repository/robloxs-got-talent-painting-hack_GM431946152.pdfIn PDF document text
    • http://lib.unar.ac.id//repository/minecraft-free-apk-java-edition_GM479516143.pdfIn PDF document text
    • http://lib.unar.ac.id/repository/coin-master-hack-tool-2021_GM406889139.pdfIn PDF document text
    • http://lib.unar.ac.id/repository/robux-hack-tools_GM431946152.pdfIn PDF document text
    • http://lib.unar.ac.id//repository/without-pokemon-go-free-incense_GM1094591345.pdfIn PDF document text
    • http://lib.unar.ac.id/repository/unlimited-robux_GM431946152.pdfIn PDF document text
    • http://lib.unar.ac.id/repository/freecoins_GM406889139.pdfIn PDF document text
    • http://lib.unar.ac.id//repository/free-coins-coin-master-link-today_GM406889139.pdfIn PDF document text
    • http://lib.unar.ac.id/repository/minecraft-java-hacks_GM479516143.pdfIn PDF document text
    • http://lib.unar.ac.id//repository/coin-master-pro-hack_GM406889139.pdfIn PDF document text
    • http://lib.unar.ac.id//repository/wurst-112-2_GM479516143.pdfIn PDF document text
    • http://lib.unar.ac.id/repository/minecraft-java-free-account_GM479516143.pdfIn PDF document text
    • http://lib.unar.ac.id//repository/free-robux-reddit_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002c51.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2C51 21516 bytes
SHA-256: 3bd82ce9f1791ed5a3d9924f3def08701572a40415ece51c6cb14237f840198c
font_01_sfnt_off00005b3d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5B3D 18420 bytes
SHA-256: ea250ccf4d9f4468c44080a6ecb81029a79b246d95b0feeb005bf77872f72ff7

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