Malicious PDF — malware analysis report

Static analysis result for SHA-256 f5fbcf762287461f…

MALICIOUS

PDF

42.2 KB Created: 2021-05-19 10:54:58 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-24
MD5: c2c14d1b65a6d3e232dd0575335c112c SHA-1: 4256cad9f2d289376f124b02b65bac48847ccaba SHA-256: f5fbcf762287461f76ca61a1a420bc813d720949098edcfafe3e410adfb2865c
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple embedded URLs that redirect to known malicious infrastructure, specifically advertising 'free generators' or 'hacks' for popular games. The primary lure URL is https://netcdn.xyz/app/1094591345/pokemon-go-free-coins-without-human-verification-game-hack, which is flagged as a malicious redirector. The document body, though heavily obfuscated, also contains this URL and other similar lures. The presence of these links strongly suggests a phishing or scam attempt designed to lead users to potentially harmful sites.

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/1094591345/pokemon-go-free-coins-without-human-verification-game-hack In PDF document text
    • https://eleganceautospa.ca/images/free-minecraft-capes_GM479516143.pdfIn PDF document text
    • https://eleganceautospa.ca/images/how-to-get-free-robux-for-kids_GM431946152.pdfIn PDF document text
    • https://eleganceautospa.ca/images/roblox-april-fools-hack_GM431946152.pdfIn PDF document text
    • https://eleganceautospa.ca/images/free-minecraft-server-hosting_GM479516143.pdfIn PDF document text
    • https://eleganceautospa.ca/images/roblox-money-hack_GM431946152.pdfIn PDF document text
    • https://eleganceautospa.ca/images/minecraft-nintendo-switch-digital-code-free_GM479516143.pdfIn PDF document text
    • https://eleganceautospa.ca/images/free-robux-no-verification-or-survey-2021_GM431946152.pdfIn PDF document text
    • https://eleganceautospa.ca/images/free-spins-on-coin-master-link_GM406889139.pdfIn PDF document text
    • https://eleganceautospa.ca/images/roblox-gang-rape_GM431946152.pdfIn PDF document text
    • https://eleganceautospa.ca/images/how-do-u-hack-roblox_GM431946152.pdfIn PDF document text
    • https://eleganceautospa.ca/images/spin-rewards-coin-master_GM406889139.pdfIn PDF document text
    • https://eleganceautospa.ca/images/minecraft-creative-mode-free_GM479516143.pdfIn PDF document text
    • https://eleganceautospa.ca/images/hackear-coin-master-android_GM406889139.pdfIn PDF document text
    • https://eleganceautospa.ca/images/daily-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://eleganceautospa.ca/images/robux-com-roblox_GM431946152.pdfIn PDF document text
    • https://eleganceautospa.ca/images/coin-master-free-spin-whatsapp-group-link_GM406889139.pdfIn PDF document text
    • https://eleganceautospa.ca/images/how-to-hack-a-roblox-account-easy_GM431946152.pdfIn PDF document text
    • https://eleganceautospa.ca/images/500-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://eleganceautospa.ca/images/get-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • https://eleganceautospa.ca/images/www-roblox-com-free-robux_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_off00004b3b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4B3B 23808 bytes
SHA-256: 9fd6def5eded6ac522b4d9336539069e79d0b151a515acf8020c7d96009722a2
font_01_sfnt_off000080d9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x80D9 18932 bytes
SHA-256: 9c8dbbd4539086f256a1c7947d88f21faabeb12c205800b17949e3002133b2c4

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