Malicious PDF — malware analysis report

Static analysis result for SHA-256 4570160ccda0d7e6…

MALICIOUS

PDF

42.2 KB Created: 2021-05-14 09:33:58 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-12
MD5: ff25d4bb02124656710feba92512dd7b SHA-1: 08ee23688ca0b46f4af18672a4f14d2c3572526f SHA-256: 4570160ccda0d7e64032b04dee7b501b6f8f8b675ae727bf70b19a69b4837cc3
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to malicious redirectors, disguised as "free generator / game hack" lures for popular games. The primary malicious URL identified is https://netcdn.xyz/app/406889139/coin-master-daily-free-spins-link-app-game-hack. The document body and heuristics confirm the intent to trick users into visiting these malicious sites, likely for further exploitation or malware delivery.

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/406889139/coin-master-daily-free-spins-link-app-game-hack In PDF document text
    • http://kontaktadig.se/images/all-minecraft-handbooks_GM479516143.pdfIn PDF document text
    • http://kontaktadig.se/images/free-robux-redeem-codes_GM431946152.pdfIn PDF document text
    • http://kontaktadig.se/images/today-coin-master-spin-free_GM406889139.pdfIn PDF document text
    • http://kontaktadig.se/images/coin-master-free-attack-hack_GM406889139.pdfIn PDF document text
    • http://kontaktadig.se/images/roblox-cheat-codes_GM431946152.pdfIn PDF document text
    • http://kontaktadig.se/images/hack-coin-master-apk-31_GM406889139.pdfIn PDF document text
    • http://kontaktadig.se/images/coin-master-hack-pc-free_GM406889139.pdfIn PDF document text
    • http://kontaktadig.se/images/download-coin-master-free-spins-link-2021-today_GM406889139.pdfIn PDF document text
    • http://kontaktadig.se/images/coin-master-vip-hack_GM406889139.pdfIn PDF document text
    • http://kontaktadig.se/images/coin-master-free-spin-2912-2021_GM406889139.pdfIn PDF document text
    • http://kontaktadig.se/images/free-coin-and-spin-for-coin-master_GM406889139.pdfIn PDF document text
    • http://kontaktadig.se/images/free-coins-and-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://kontaktadig.se/images/games-on-roblox-that-give-you-free-robux_GM431946152.pdfIn PDF document text
    • http://kontaktadig.se/images/coin-master-no-download-app-but-play-for-free_GM406889139.pdfIn PDF document text
    • http://kontaktadig.se/images/coin-master-free-cards-2021_GM406889139.pdfIn PDF document text
    • http://kontaktadig.se/images/coin-master-free-spins-link-2021-twitter_GM406889139.pdfIn PDF document text
    • http://kontaktadig.se/images/coin-master-hack-ios-2021_GM406889139.pdfIn PDF document text
    • http://kontaktadig.se/images/hack-my-game-xyz-coin-master_GM406889139.pdfIn PDF document text
    • http://kontaktadig.se/images/free-roblox-pin-codes_GM431946152.pdfIn PDF document text
    • http://kontaktadig.se/images/what-is-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
font_00_sfnt_off000047eb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x47EB 25764 bytes
SHA-256: 5f7ff5da02b5b57984631e6d0dcf1199dde548ab1e3eb028da3d64cd5b423047
font_01_sfnt_off000081e7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x81E7 18476 bytes
SHA-256: 8af254e049fcccc1442405a550d0e3ce0b782d3872c3c9d4c1baf9e82e1cff79

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