Malicious PDF — malware analysis report

Static analysis result for SHA-256 022910d723e8e44c…

MALICIOUS

PDF

31.2 KB Created: 2021-06-18 06:05:39 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-08-25
MD5: 5e80b5163d13652b399e19d086006565 SHA-1: 8af51ffc9cd3d9e3d42992f612186bde428fcdad SHA-256: 022910d723e8e44cb6de210e1cb7687083299287cf28872e53a3b2d4b14b937c
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links that are identified as malicious redirectors, specifically luring users with promises of game hacks and free currency. The primary malicious URL identified is http://netcdn.co/app/431946152/youtube-roblox-robux-hack-2021-game-hack. No scripts were extracted, but the embedded URLs and heuristic firings strongly indicate a social engineering tactic to redirect users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9988

Heuristics 3

  • 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.
  • 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.co/app/431946152/youtube-roblox-robux-hack-2021-game-hack In PDF document text
    • http://opac.salatigakota.go.id/slims7//repository/robuxmatchcom-free-robux_GM431946152.pdfIn PDF document text
    • http://opac.salatigakota.go.id/slims7//repository/tiktok-free-view-uk_GM835599320.pdfIn PDF document text
    • http://opac.salatigakota.go.id/slims7/repository/roblox-studio-free-robux_GM431946152.pdfIn PDF document text
    • http://opac.salatigakota.go.id/slims7//repository/free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://opac.salatigakota.go.id/slims7/repository/serveru-hack-roblox_GM431946152.pdfIn PDF document text
    • http://opac.salatigakota.go.id/slims7//repository/free-spin-link-for-coin-master-game_GM406889139.pdfIn PDF document text
    • http://opac.salatigakota.go.id/slims7//repository/free-robux-hack_GM431946152.pdfIn PDF document text
    • http://opac.salatigakota.go.id/slims7/repository/coin-master-free-spins-link-blogspot-2021_GM406889139.pdfIn PDF document text
    • http://opac.salatigakota.go.id/slims7/repository/how-to-get-free-robux-without-verification-or-surveys_GM431946152.pdfIn PDF document text
    • http://opac.salatigakota.go.id/slims7//repository/tiktok-free-wallpapers_GM835599320.pdfIn PDF document text
    • http://opac.salatigakota.go.id/slims7//repository/minecraft-hacks-list_GM479516143.pdfIn PDF document text
    • http://opac.salatigakota.go.id/slims7//repository/roblox-free-bundles_GM431946152.pdfIn PDF document text
    • http://opac.salatigakota.go.id/slims7//repository/huskybuckscom-free-robux_GM431946152.pdfIn PDF document text
    • http://opac.salatigakota.go.id/slims7//repository/roblox-games-with-free-boombox_GM431946152.pdfIn PDF document text
    • http://opac.salatigakota.go.id/slims7//repository/coin-master-hack-apk-2021-download_GM406889139.pdfIn PDF document text
    • http://opac.salatigakota.go.id/slims7//repository/how-to-get-free-robux-instantly_GM431946152.pdfIn PDF document text
    • http://opac.salatigakota.go.id/slims7/repository/free-robux-codes-generator-no-verification_GM431946152.pdfIn PDF document text
    • http://opac.salatigakota.go.id/slims7//repository/free-robux-games-on-roblox_GM431946152.pdfIn PDF document text
    • http://opac.salatigakota.go.id/slims7//repository/coin-master-free-spins-cheat_GM406889139.pdfIn PDF document text
    • http://opac.salatigakota.go.id/slims7/repository/how-to-get-free-robux-inspect-console_GM431946152.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 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000311e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x311E 22392 bytes
SHA-256: b0037ad2351e09090d3cd0eb2b0c282e0765963bd9f43af2b93f8663bfe85913

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