Malicious PDF — malware analysis report

Static analysis result for SHA-256 07064eecca022d59…

MALICIOUS

PDF

44.0 KB Created: 2021-06-07 04:02:29 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-21
MD5: db6e0e2521a92dd0414d26e0edb4f2cd SHA-1: 09ade194c87c34b4599f34dd2b27ac4811597bef SHA-256: 07064eecca022d599eb96f7b72faadb14a52235de152f03cd25720fb62d3bc4a
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links pointing to malicious redirectors, disguised as 'game hacks' or generators. The primary malicious link identified is https://netcdn.tw/app/431946152/youtube-hack-aimbot-roblox-game-hack. The document body and embedded URLs suggest a lure for users seeking cheats or in-game currency, which is a common tactic for distributing malware or leading to phishing sites. No scripts were extracted, but the presence of malicious links and the lure strongly indicate a malicious intent.

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.tw/app/431946152/youtube-hack-aimbot-roblox-game-hack In PDF document text
    • http://libnh.stikesnh.ac.id/repository/free-robux-hacks-no-verification_GM431946152.pdfIn PDF document text
    • http://libnh.stikesnh.ac.id/repository/roblox-free-play_GM431946152.pdfIn PDF document text
    • http://libnh.stikesnh.ac.id/repository/free-coin-master-coins-and-spins_GM406889139.pdfIn PDF document text
    • http://libnh.stikesnh.ac.id/repository/free-coin-and-spin-link_GM406889139.pdfIn PDF document text
    • http://libnh.stikesnh.ac.id/repository/free-robux-codes_GM431946152.pdfIn PDF document text
    • http://libnh.stikesnh.ac.id/repository/free-robux-codes-2021-not-used_GM431946152.pdfIn PDF document text
    • http://libnh.stikesnh.ac.id/repository/free-roblox-hack-us_GM431946152.pdfIn PDF document text
    • http://libnh.stikesnh.ac.id/repository/how-to-get-free-robux-without-any-verification_GM431946152.pdfIn PDF document text
    • http://libnh.stikesnh.ac.id/repository/coin-master-hack-spins-game-download_GM406889139.pdfIn PDF document text
    • http://libnh.stikesnh.ac.id/repository/hey-google-how-do-you-get-free-robux_GM431946152.pdfIn PDF document text
    • http://libnh.stikesnh.ac.id/repository/coin-master-facebook_GM406889139.pdfIn PDF document text
    • http://libnh.stikesnh.ac.id/repository/free-100-robux_GM431946152.pdfIn PDF document text
    • http://libnh.stikesnh.ac.id/repository/static-moonactive_GM406889139.pdfIn PDF document text
    • http://libnh.stikesnh.ac.id/repository/how-to-get-free-robux-by-playing-games_GM431946152.pdfIn PDF document text
    • http://libnh.stikesnh.ac.id/repository/robux-gift-card-free_GM431946152.pdfIn PDF document text
    • http://libnh.stikesnh.ac.id/repository/actual-free-robux_GM431946152.pdfIn PDF document text
    • http://libnh.stikesnh.ac.id/repository/is-roblox-studio-free_GM431946152.pdfIn PDF document text
    • http://libnh.stikesnh.ac.id/repository/coin-master-tricks_GM406889139.pdfIn PDF document text
    • http://libnh.stikesnh.ac.id/repository/free-fire-coin-master_GM406889139.pdfIn PDF document text
    • http://libnh.stikesnh.ac.id/repository/how-to-get-coin-master-free-spins-in-email_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_off00004de3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4DE3 25316 bytes
SHA-256: cc80abd9703e104cddcd97f267c6b11c80433816ec3b9a3c2125d04c1dcdc8c9
font_01_sfnt_off0000873b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x873B 18968 bytes
SHA-256: 03f416a1ee4919a2b96553b5b61c4b9185ed5fea5107d900e16f85f566080ee5

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