Malicious PDF — malware analysis report

Static analysis result for SHA-256 60ea215d08431539…

MALICIOUS

PDF

44.2 KB Created: 2021-06-04 05:38:13 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-27
MD5: 225547dc3bfa1f68b341e17c826b8bd4 SHA-1: 2fd1473a76d83dec376476ecbb74828631a04a23 SHA-256: 60ea215d0843153972a0018819ce25bae5c3d6f5984ad2908bc011020b40a0fd
160 Risk Score

Malware Insights

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

The PDF contains multiple heuristics indicating malicious redirector links, specifically luring users with promises of game hacks and free accounts. The primary malicious URL identified is used as a lure to redirect users to potentially harmful content. The ML classifier also flagged this PDF with high confidence.

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/479516143/free-minecraft-account-reddit-game-hack In PDF document text
    • http://library.yamasi.ac.id/repository/coin-master-hack-tool-ios_GM406889139.pdfIn PDF document text
    • http://library.yamasi.ac.id//repository/coin-master-hack-app-download-free_GM406889139.pdfIn PDF document text
    • http://library.yamasi.ac.id//repository/free-robux-no-verification-2021-ios_GM431946152.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/free-youtube-tiktok-dance_GM835599320.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/master-coin-free-spin_GM406889139.pdfIn PDF document text
    • http://library.yamasi.ac.id//repository/how-to-make-a-free-minecraft-account_GM479516143.pdfIn PDF document text
    • http://library.yamasi.ac.id//repository/spin-link-coin-master_GM406889139.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/blogspot-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/coin-master-free-spins-gratis_GM406889139.pdfIn PDF document text
    • http://library.yamasi.ac.id//repository/best-minecraft-hacks_GM479516143.pdfIn PDF document text
    • http://library.yamasi.ac.id//repository/tiradas-coin-master_GM406889139.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/coin-master-free-spins-link-2021_GM406889139.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/coin-master-free-coins-spins_GM406889139.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/coin-master-tiradas-gratis_GM406889139.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/free-roblox-girl-hair-not-a-model_GM431946152.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/how-to-download-minecraft-for-free-on-your-phone_GM479516143.pdfIn PDF document text
    • http://library.yamasi.ac.id//repository/huskybuscom-free-robux_GM431946152.pdfIn PDF document text
    • http://library.yamasi.ac.id//repository/free-coin-master-cards_GM406889139.pdfIn PDF document text
    • http://library.yamasi.ac.id//repository/mc-hacks_GM479516143.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/coin-master-hack-online-2021_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
stream_004_off000052d3.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x52D3 25032 bytes
SHA-256: a161ed65616cd631e4e012700157aa019ee49576ae961d6dae33299be229bbaa
font_01_sfnt_off00008b2b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8B2B 18024 bytes
SHA-256: 06706ad336338b7ad3fbc0c92e8d54cad43b148c9035f6d20b1c8b9e0858b525

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