Malicious PDF — malware analysis report

Static analysis result for SHA-256 2ee9cddcde184068…

MALICIOUS

PDF

45.5 KB Created: 2021-06-04 03:58:37 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-16
MD5: 3fe39536f68596df64897e2e3f1ffc7a SHA-1: 890bb20896b58a06abc054f794badc64defe31d1 SHA-256: 2ee9cddcde184068a925e811a07743acf3a8f4ec88a877f4f365e6c19d2595fe
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to redirector infrastructure, specifically promoting 'free generator / game hack' lures for popular games. The primary malicious URL identified is https://netcdn.online/app/406889139/coin-master-free-spins-daily-game-hack. While no scripts were explicitly extracted, the PDF structure and heuristic firings indicate a malicious redirector designed to lure users to potentially harmful content, likely as part of a phishing or scam campaign.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9797

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/coin-master-free-spins-daily-game-hack In PDF document text
    • http://lib.mbp.ac.id/repository/free-robux-hack-no-human-verification_GM431946152.pdfIn PDF document text
    • http://lib.mbp.ac.id/repository/haktuts-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://lib.mbp.ac.id/repository/roblox-promo-codes-free-robux_GM431946152.pdfIn PDF document text
    • http://lib.mbp.ac.id/repository/free-roblox-toy-codes-not-used_GM431946152.pdfIn PDF document text
    • http://lib.mbp.ac.id/repository/free-robux-no-verification_GM431946152.pdfIn PDF document text
    • http://lib.mbp.ac.id/repository/coin-master-free-100-spin-link_GM406889139.pdfIn PDF document text
    • http://lib.mbp.ac.id/repository/free-robux-ad_GM431946152.pdfIn PDF document text
    • http://lib.mbp.ac.id/repository/free-robux-no-survey_GM431946152.pdfIn PDF document text
    • http://lib.mbp.ac.id/repository/robuxmatch-com-free-robux_GM431946152.pdfIn PDF document text
    • http://lib.mbp.ac.id/repository/roblox-troll-outfits-free_GM431946152.pdfIn PDF document text
    • http://lib.mbp.ac.id/repository/free-robux-obby_GM431946152.pdfIn PDF document text
    • http://lib.mbp.ac.id/repository/coin-master-free-rare-cards_GM406889139.pdfIn PDF document text
    • http://lib.mbp.ac.id/repository/minecraft-hack-mod_GM479516143.pdfIn PDF document text
    • http://lib.mbp.ac.id/repository/get-free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://lib.mbp.ac.id/repository/2021-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://lib.mbp.ac.id/repository/coin-master-free-coins-and-spins_GM406889139.pdfIn PDF document text
    • http://lib.mbp.ac.id/repository/how-to-get-a-refund-on-roblox-2021_GM431946152.pdfIn PDF document text
    • http://lib.mbp.ac.id/repository/free-coin-coin-master_GM406889139.pdfIn PDF document text
    • http://lib.mbp.ac.id/repository/how-to-get-100-robux-for-free_GM431946152.pdfIn PDF document text
    • http://lib.mbp.ac.id/repository/how-to-hack-someone-on-roblox_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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off00004e4e.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4E4E 24380 bytes
SHA-256: 8580f4c561adecc301b3e169535cc88a747ef89d2e852232075f0135938a3814
font_01_sfnt_off000084f5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x84F5 2840 bytes
SHA-256: 30dce2b9c1950da345d7fed8f00c38887adfa2f2ddecc31775af2315e819ac37
font_02_sfnt_off00008ea7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8EA7 18308 bytes
SHA-256: 220bb6194b1ab8a2bb399ca4a862914ac8d15b354bb0df2c737bc67699221dc9

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