Malicious PDF — malware analysis report

Static analysis result for SHA-256 6a010ddae4faeda7…

MALICIOUS

PDF

33.6 KB Created: 2021-07-07 13:29:55 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-23
MD5: 74b6b948c5860f967452cd0ca3f4ba27 SHA-1: 29f1b85c978bec6f7c56f6c36ab77a60784b0ace SHA-256: 6a010ddae4faeda765effcaa551170201d2e2baed331f823a8e9f789f99a0a4b
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple embedded URLs that redirect to a known malicious infrastructure, likely to lure users into downloading further malware or engaging in scams. The document body and heuristics indicate a lure related to game hacks and free currency, aligning with common phishing and scam tactics. No scripts were extracted, but the embedded URLs are the primary indicators of malicious intent.

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/master-coin-free-link-game-hack In PDF document text
    • http://lib.akper17.ac.id/repository/get-free-robux-no-verification_GM431946152.pdfIn PDF document text
    • http://lib.akper17.ac.id/repository/coin-master-claim-spins_GM406889139.pdfIn PDF document text
    • http://lib.akper17.ac.id/repository/roblox-free-rubox_GM431946152.pdfIn PDF document text
    • http://lib.akper17.ac.id/repository/roblox-free-roblox_GM431946152.pdfIn PDF document text
    • http://lib.akper17.ac.id/repository/roblox-free-vip-server_GM431946152.pdfIn PDF document text
    • http://lib.akper17.ac.id/repository/how-to-get-minecraft-for-free-on-iphone_GM479516143.pdfIn PDF document text
    • http://lib.akper17.ac.id/repository/coin-master-daily-free-spins-and-coins_GM406889139.pdfIn PDF document text
    • http://lib.akper17.ac.id/repository/coin-master-hack-with-facebook-login_GM406889139.pdfIn PDF document text
    • http://lib.akper17.ac.id/repository/how-to-get-800-robux-for-free_GM431946152.pdfIn PDF document text
    • http://lib.akper17.ac.id/repository/free-robux-apk_GM431946152.pdfIn PDF document text
    • http://lib.akper17.ac.id/repository/free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://lib.akper17.ac.id/repository/minecraft-free-download-windows-10_GM479516143.pdfIn PDF document text
    • http://lib.akper17.ac.id/repository/boost9-com-roblox-hack_GM431946152.pdfIn PDF document text
    • http://lib.akper17.ac.id/repository/how-to-get-stuff-that-cost-coins-free-mcpe-master_GM406889139.pdfIn PDF document text
    • http://lib.akper17.ac.id/repository/free-coins-and-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://lib.akper17.ac.id/repository/free-robux-no-verify-2021_GM431946152.pdfIn PDF document text
    • http://lib.akper17.ac.id/repository/how-to-get-free-spins-on-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://lib.akper17.ac.id/repository/2021-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://lib.akper17.ac.id/repository/make-your-own-minecraft-server-free_GM479516143.pdfIn PDF document text
    • http://lib.akper17.ac.id/repository/free-robux-with-no-verification_GM431946152.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_off00002ea2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2EA2 22592 bytes
SHA-256: fab6db0e7e8fdd9b31b3af959ce63c2391e6474465e82b2c06d62e258d8d64b3
font_01_sfnt_off000060de.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60DE 18168 bytes
SHA-256: e450dc423028427b486fcd2b5a338852c4e54ca04eb5a94dcf465bc91229717c

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