Malicious PDF — malware analysis report

Static analysis result for SHA-256 ccfabd12315bdd13…

MALICIOUS

PDF

40.7 KB Created: 2021-05-01 19:46:48 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15
MD5: 594c1171e7dedd66a416e182ea6ecea7 SHA-1: 0988a036ec9a537e2a3100155f08e00d505d2330 SHA-256: ccfabd12315bdd130b3e288533805bce1284515ea886ada2437ba981dda4f516
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links to external websites, including a known malicious redirector, under the guise of providing free game hacks and generators. The document body and embedded links suggest a lure to trick users into visiting potentially harmful sites. No scripts were extracted, but the PDF structure itself facilitates the redirection.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9941

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/431946152/does-roblox-have-free-snakes-game-hack In PDF document text
    • http://www.technibuild-group.com/uploaded_files/userfiles/files/roblox-free-no-human-verification.pdfIn PDF document text
    • http://technibuild-group.com/uploaded_files/userfiles/files/how-to-get-1-million-robux-for-free-really-easy.pdfIn PDF document text
    • http://technibuild-group.com/uploaded_files/userfiles/files/how-to-get-free-robux-that-works-2021.pdfIn PDF document text
    • http://technibuild-group.com/uploaded_files/userfiles/files/free-private-server-roblox.pdfIn PDF document text
    • http://www.technibuild-group.com/uploaded_files/userfiles/files/free-bc-generator-roblox.pdfIn PDF document text
    • http://www.technibuild-group.com/uploaded_files/userfiles/files/roblox-free-robux-hack-no-survey-no-download-2021.pdfIn PDF document text
    • http://www.technibuild-group.com/uploaded_files/userfiles/files/how-do-you-hack-accounts-on-roblox.pdfIn PDF document text
    • http://www.technibuild-group.com/uploaded_files/userfiles/files/free-robux-with-no-games.pdfIn PDF document text
    • http://technibuild-group.com/uploaded_files/userfiles/files/free-robux-clan.pdfIn PDF document text
    • http://www.technibuild-group.com/uploaded_files/userfiles/files/mobile4free24com-roblox-robux-hack.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_off000042c6.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x42C6 25828 bytes
SHA-256: a46b946c3a04e1b74b384eee8bd7cc5daed85ddfdf7f8d54eae4e2209d48fbc6
font_01_sfnt_off00007c66.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7C66 18628 bytes
SHA-256: 5f1e9d8ef7677c8922beff0ea7b332fcd7b989bda0224ed1eea28c2580427b27

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