Malicious PDF — malware analysis report

Static analysis result for SHA-256 560a05330673763a…

MALICIOUS

PDF

35.3 KB Created: 2021-07-02 06:29:23 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: f5089b738b601605ff311f5844b32c25 SHA-1: e793fe055506c1a8fefedf7220620e6af725aeb1 SHA-256: 560a05330673763a5446e52acb6825b4d22f22efe791dbe804dea18201fb2dbb
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF document employs a lure related to game hacks and free in-game currency to entice users. It contains a high-risk link to 'http://netcdn.co/app/431946152/hack-to-get-dragon-in-shard-seekers-roblox-game-hack', which is likely a redirector to malicious content or a phishing page. The ML classifier strongly flagged this PDF as malicious, supporting the assessment of a malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector high 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.
  • 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
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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/hack-to-get-dragon-in-shard-seekers-roblox-game-hack PDF link annotation
    • https://library.iuli.ac.id/repository/free-robux-with-no-human-verification_GM431946152.pdfIn PDF document text
    • https://library.iuli.ac.id/repository/roblox-xbox-one-free_GM431946152.pdfIn PDF document text
    • https://library.iuli.ac.id/repository/free-online-multiplayer-games-like-roblox_GM431946152.pdfIn PDF document text
    • https://library.iuli.ac.id/repository/coin-master-daily-free-spins-and-coins_GM406889139.pdfIn PDF document text
    • https://library.iuli.ac.id/repository/coin-master-free-spins-and-coins-today-gift-reward_GM406889139.pdfIn PDF document text
    • https://library.iuli.ac.id/repository/roblox-cheat-engine-2021_GM431946152.pdfIn PDF document text
    • https://library.iuli.ac.id/repository/roblox-royale-high-diamond-hack_GM431946152.pdfIn PDF document text
    • https://library.iuli.ac.id/repository/orewards-com-free-robux_GM431946152.pdfIn PDF document text
    • https://library.iuli.ac.id/repository/freerobuxno-games-no-sighning-up_GM431946152.pdfIn PDF document text
    • https://library.iuli.ac.id/repository/claim-free-robux-no-survey_GM431946152.pdfIn PDF document text
    • https://library.iuli.ac.id/repository/minecraft-pe-hack-client_GM479516143.pdfIn PDF document text
    • https://library.iuli.ac.id/repository/every-roblox-item-free_GM431946152.pdfIn PDF document text
    • https://library.iuli.ac.id/repository/lockview-hack-roblox_GM431946152.pdfIn PDF document text
    • https://library.iuli.ac.id/repository/how-to-hack-roblox-accounts-that-have-robux_GM431946152.pdfIn PDF document text
    • https://library.iuli.ac.id/repository/free-robux-app_GM431946152.pdfIn PDF document text
    • https://library.iuli.ac.id/repository/free-roblox-redeem-cards-nov-2021_GM431946152.pdfIn PDF document text
    • https://library.iuli.ac.id/repository/thebesian-get-roblox-ninja-animation-free_GM431946152.pdfIn PDF document text
    • https://library.iuli.ac.id/repository/pastebin-robux-account-hack-2021_GM431946152.pdfIn PDF document text
    • https://library.iuli.ac.id/repository/fast-food-tycoon-free-roblox_GM431946152.pdfIn PDF document text
    • https://library.iuli.ac.id/repository/spin-link_GM406889139.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_off0000324a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x324A 22472 bytes
SHA-256: 472e951a8117674d5655d09ce8fa43f236a11c0f1c126ac2c896fedd444d4df3
font_01_sfnt_off00006462.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6462 19268 bytes
SHA-256: 40c85276387d9bf7e7ea38c14ab3cd3079407811f1e0fd6a0245805711b79fd3

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