Malicious PDF — malware analysis report

Static analysis result for SHA-256 7102ee3230f56d43…

MALICIOUS

PDF

35.3 KB Created: 2021-07-04 00:39:20 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 4cf181f1fdcf0edf055890e7b3b1d577 SHA-1: 5399117510f57c9a491f9908f953f9208ab4101c SHA-256: 7102ee3230f56d4391573f27c95f69bcde94856c19b78e6059b1ef5fe93f972f
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links that redirect to malicious infrastructure, specifically promoting "game hacks" and "free currency" lures. The primary redirector URL identified is http://netcdn.tw/app/406889139/coin-master-free-daily-spins-2021-game-hack. The document body and heuristics strongly indicate a social engineering tactic to drive users to potentially harmful websites.

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/406889139/coin-master-free-daily-spins-2021-game-hack In PDF document text
    • https://www.studio-dentistico-fiume.com/files/how-to-get-free-robux-2021-no-human-verification_GM431946152.pdfIn PDF document text
    • https://www.studio-dentistico-fiume.com/files/free-spins-coin-master-links-no-human-verification_GM406889139.pdfIn PDF document text
    • https://www.studio-dentistico-fiume.com/files/roblox-cursed-islands-hack_GM431946152.pdfIn PDF document text
    • http://studio-dentistico-fiume.com/files/free-robux-websites-that-actually-work_GM431946152.pdfIn PDF document text
    • http://studio-dentistico-fiume.com/files/hack-coin-master-nyc_GM406889139.pdfIn PDF document text
    • http://studio-dentistico-fiume.com/files/indidojoe-robux-hack_GM431946152.pdfIn PDF document text
    • http://studio-dentistico-fiume.com/files/minecraft-free-demo_GM479516143.pdfIn PDF document text
    • https://www.studio-dentistico-fiume.com/files/supremacy-free-robux_GM431946152.pdfIn PDF document text
    • https://www.studio-dentistico-fiume.com/files/roblox-hax_GM431946152.pdfIn PDF document text
    • http://studio-dentistico-fiume.com/files/how-to-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • https://www.studio-dentistico-fiume.com/files/how-to-hack-roblox_GM431946152.pdfIn PDF document text
    • http://studio-dentistico-fiume.com/files/get-robux-now_GM431946152.pdfIn PDF document text
    • http://studio-dentistico-fiume.com/files/stock-speed-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://studio-dentistico-fiume.com/files/free-robux-2021-no-human-verification_GM431946152.pdfIn PDF document text
    • https://www.studio-dentistico-fiume.com/files/daily-free-spin-coin-master-link_GM406889139.pdfIn PDF document text
    • http://studio-dentistico-fiume.com/files/how-to-get-free-robux-easy-hack_GM431946152.pdfIn PDF document text
    • https://www.studio-dentistico-fiume.com/files/games-that-give-you-free-robux_GM431946152.pdfIn PDF document text
    • https://www.studio-dentistico-fiume.com/files/free-roblox-zombie-games_GM431946152.pdfIn PDF document text
    • http://studio-dentistico-fiume.com/files/free-robux-and-tickets-2021_GM431946152.pdfIn PDF document text
    • http://studio-dentistico-fiume.com/files/i-want-to-hack-roblox-without-downloading-any-apps_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_off00003047.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3047 23284 bytes
SHA-256: d11564e58f01a0dc5ad68a0116a350fdee290733d9212073e88f5221f1142c27
font_01_sfnt_off000064ea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x64EA 19000 bytes
SHA-256: fe44b8dc0286c11eb9316a1d3eb321ff3ae19d9947d0f6ad420bc13b052cb0ec

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