Malicious PDF — malware analysis report

Static analysis result for SHA-256 0c9124e36b5d0215…

MALICIOUS

PDF

42.3 KB Created: 2021-05-17 14:46:12 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-16
MD5: 41727aadf0b247862617d85a76cb6080 SHA-1: d32b7ee77dfae89ad40bdfefb9daaa1ae92c93f8 SHA-256: 0c9124e36b5d0215b89606aa51cf601a2a0c88da721b843de2913aedb29ece93
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a common lure of game hacks and free currency to trick users into clicking malicious links. The document contains multiple embedded URLs that point to redirector infrastructure, which in turn likely leads to further malicious content or downloads. The ML classifier also strongly indicated maliciousness.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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.xyz/app/406889139/how-to-get-more-free-coins-on-coin-master-game-hack In PDF document text
    • http://beaksandpawsfl.com/images/roblox-rape-hack_GM431946152.pdfIn PDF document text
    • http://beaksandpawsfl.com/images/60-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://beaksandpawsfl.com/images/how-do-u-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://beaksandpawsfl.com/images/coin-master-hack-tool-india_GM406889139.pdfIn PDF document text
    • http://beaksandpawsfl.com/images/free-spins-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://beaksandpawsfl.com/images/free-minecraft-maps_GM479516143.pdfIn PDF document text
    • http://beaksandpawsfl.com/images/apps-for-free-robux_GM431946152.pdfIn PDF document text
    • http://beaksandpawsfl.com/images/how-to-get-800-robux-for-free_GM431946152.pdfIn PDF document text
    • http://beaksandpawsfl.com/images/get-free-spins-from-coin-master_GM406889139.pdfIn PDF document text
    • http://beaksandpawsfl.com/images/free-spins-for-coin-master-game_GM406889139.pdfIn PDF document text
    • http://beaksandpawsfl.com/images/free-coin-and-spin-for-coin-master_GM406889139.pdfIn PDF document text
    • http://beaksandpawsfl.com/images/free-roblox-money_GM431946152.pdfIn PDF document text
    • http://beaksandpawsfl.com/images/free-robux-no-verification-no-download-2021_GM431946152.pdfIn PDF document text
    • http://beaksandpawsfl.com/images/blox-supply-free-robux_GM431946152.pdfIn PDF document text
    • http://beaksandpawsfl.com/images/coin-master-free-coins-and-spins-today_GM406889139.pdfIn PDF document text
    • http://beaksandpawsfl.com/images/how-to-hack-roblox-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://beaksandpawsfl.com/images/coin-master-event-hack_GM406889139.pdfIn PDF document text
    • http://beaksandpawsfl.com/images/how-to-get-free-roebucks-without-verification_GM431946152.pdfIn PDF document text
    • http://beaksandpawsfl.com/images/coin-master-free-spins-hack-download_GM406889139.pdfIn PDF document text
    • http://beaksandpawsfl.com/images/free-coin-master-hacks-no-verification_GM406889139.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004b73.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4B73 25316 bytes
SHA-256: f05ba8cadf2f8f6fb9a9e6e7fb99c72d678e824cc22ef8ea89fb177cad7e2972
font_01_sfnt_off00008454.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8454 17872 bytes
SHA-256: 73b45e218274b6fbec23894575b4e000a8847b8f387ad102a3b5957b324b85f8

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