Malicious PDF — malware analysis report

Static analysis result for SHA-256 3cc700ce5b926017…

MALICIOUS

PDF

43.2 KB Created: 2021-06-03 10:42:53 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-24
MD5: 687ce03111e64a1c8e139d9df3098eb1 SHA-1: f5aa9afcfc26f029729653ac2c12ce00f8096605 SHA-256: 3cc700ce5b926017143e12d714cf79746477e82e88e437002517306db26b1285
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF contains multiple links pointing to known malicious redirector infrastructure, specifically promoting 'free generator / game hack' lures. The embedded URL https://netcdn.online/app/406889139/how-to-get-free-spins-and-coins-in-coin-master-game-hack is a primary indicator of this malicious activity. While no scripts were extracted, the PDF structure and heuristics strongly suggest a phishing or redirection attack.

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/how-to-get-free-spins-and-coins-in-coin-master-game-hack In PDF document text
    • http://pustaka.fti.unand.ac.id/repository/roblox-free-play_GM431946152.pdfIn PDF document text
    • http://pustaka.fti.unand.ac.id//repository/hack-to-get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://pustaka.fti.unand.ac.id//repository/will-minecraft-ever-be-free_GM479516143.pdfIn PDF document text
    • http://pustaka.fti.unand.ac.id//repository/free-minecraft-generator_GM479516143.pdfIn PDF document text
    • http://pustaka.fti.unand.ac.id/repository/static-moonactive-net_GM406889139.pdfIn PDF document text
    • http://pustaka.fti.unand.ac.id//repository/coin-master-70-spin-link-2021_GM406889139.pdfIn PDF document text
    • http://pustaka.fti.unand.ac.id/repository/free-roebucks_GM431946152.pdfIn PDF document text
    • http://pustaka.fti.unand.ac.id/repository/how-to-get-free-spins-on-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://pustaka.fti.unand.ac.id//repository/roblox-mobile-hack_GM431946152.pdfIn PDF document text
    • http://pustaka.fti.unand.ac.id/repository/coin-master-hack-generator-tool_GM406889139.pdfIn PDF document text
    • http://pustaka.fti.unand.ac.id/repository/how-to-hack-roblox-games_GM431946152.pdfIn PDF document text
    • http://pustaka.fti.unand.ac.id/repository/roblox-arsenal-hack-script-pastebin_GM431946152.pdfIn PDF document text
    • http://pustaka.fti.unand.ac.id/repository/free-spins-link-in-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://pustaka.fti.unand.ac.id//repository/how-do-you-get-roebucks_GM431946152.pdfIn PDF document text
    • http://pustaka.fti.unand.ac.id/repository/coin-master-hack-version_GM406889139.pdfIn PDF document text
    • http://pustaka.fti.unand.ac.id/repository/how-to-get-roebucks-in-roblox_GM431946152.pdfIn PDF document text
    • http://pustaka.fti.unand.ac.id/repository/free-spins-coin-master-ios-links_GM406889139.pdfIn PDF document text
    • http://pustaka.fti.unand.ac.id/repository/coin-master-daily-free-spins_GM406889139.pdfIn PDF document text
    • http://pustaka.fti.unand.ac.id//repository/how-can-i-get-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://pustaka.fti.unand.ac.id//repository/free-spin-link-coin-master-app_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_off00004fba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4FBA 23948 bytes
SHA-256: 7cc159c2d16107a356548c1790abee25382b8608cf2c935ddfcacbc6aaf2ab83
font_01_sfnt_off00008643.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8643 18224 bytes
SHA-256: 1a177d96c25f70e29c96d18ff08cc0e48255fbbd4539b1ca90a782c549603dc1

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