Malicious PDF — malware analysis report

Static analysis result for SHA-256 f150574667fe0b01…

MALICIOUS

PDF

44.2 KB Created: 2021-06-04 00:01:32 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-22
MD5: 47146bfe33506503a327d409a0c6cd3f SHA-1: 1492eec288ea92f3500b1d510aa2147c48392c42 SHA-256: f150574667fe0b012e83107ae41d71f205f06b4f315afe7ac5044877044c61c2
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 money and spins" for games, which is a common lure for scams. The ML classifier also strongly indicated maliciousness. While no scripts were explicitly extracted, the PDF structure and embedded links suggest a social engineering attack designed to lead the user to a potentially harmful website.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9865

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/406889139/free-money-and-spins-coin-master-game-hack In PDF document text
    • http://www.digilib.uim.ac.id/repository/how-to-get-creative-mode-in-minecraft-server-hack_GM479516143.pdfIn PDF document text
    • http://www.digilib.uim.ac.id/repository/free-robux-hack-no-human-verification-or-survey_GM431946152.pdfIn PDF document text
    • http://digilib.uim.ac.id/repository/coin-master-codes_GM406889139.pdfIn PDF document text
    • http://digilib.uim.ac.id/repository/roblox-jailbreak-hack-download_GM431946152.pdfIn PDF document text
    • http://digilib.uim.ac.id/repository/free-robux-hack-no-verification_GM431946152.pdfIn PDF document text
    • http://www.digilib.uim.ac.id/repository/coin-master-free-daily-spins-today_GM406889139.pdfIn PDF document text
    • http://www.digilib.uim.ac.id/repository/hack-coin-master-for-free_GM406889139.pdfIn PDF document text
    • http://www.digilib.uim.ac.id/repository/how-to-hack-coin-master-root_GM406889139.pdfIn PDF document text
    • http://digilib.uim.ac.id/repository/cm-spins_GM406889139.pdfIn PDF document text
    • http://digilib.uim.ac.id/repository/minecraft-java-free-download_GM479516143.pdfIn PDF document text
    • http://digilib.uim.ac.id/repository/free-spins-on-coin-master-generator_GM406889139.pdfIn PDF document text
    • http://digilib.uim.ac.id/repository/how-to-get-free-outfits-on-roblox_GM431946152.pdfIn PDF document text
    • http://digilib.uim.ac.id/repository/coin-master-free-spins-cheat_GM406889139.pdfIn PDF document text
    • http://digilib.uim.ac.id/repository/free-roblox-hack_GM431946152.pdfIn PDF document text
    • http://www.digilib.uim.ac.id/repository/tiktok-free-vs-paid_GM835599320.pdfIn PDF document text
    • http://www.digilib.uim.ac.id/repository/free-robux-site_GM431946152.pdfIn PDF document text
    • http://digilib.uim.ac.id/repository/minecraft-xbox-one-free_GM479516143.pdfIn PDF document text
    • http://digilib.uim.ac.id/repository/spin-free-coin-master_GM406889139.pdfIn PDF document text
    • http://digilib.uim.ac.id/repository/is-minecraft-realms-free_GM479516143.pdfIn PDF document text
    • http://digilib.uim.ac.id/repository/free-spins-coin-master_GM406889139.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
stream_004_off00004eaf.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4EAF 24864 bytes
SHA-256: a37a302e675963888ee2b62cd98900e6f8694653806f4af087c0cafc695331b7
font_01_sfnt_off0000874d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x874D 19212 bytes
SHA-256: 03bccce1d34cd18261642d67affb1f7fafdfcd64c441002f5d00872f204a4bda

Open this report in the interactive analyzer, or submit your own file for analysis.