Malicious PDF — malware analysis report

Static analysis result for SHA-256 0ab22031ae5dff2a…

MALICIOUS

PDF

34.3 KB Created: 2021-06-30 07:00:23 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 5456e821054f58d05904c130cd9ba27e SHA-1: 375fc6e015faf79a75a8b9dc5494d2f33ef61f38 SHA-256: 0ab22031ae5dff2a1be156f1d03be077c4a66ec3f011b0466462a7f095d75ec0
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

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/free-robux-generator-no-survey-no-offers-game-hack PDF link annotation
    • http://digilibfisip.unla.ac.id/repository/roblox-hack-higher-rank-in-group_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/free-shavaka-roblox-id_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/free-dominus-roblox-avatar_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/coin-master-400-spin-link-hack_GM406889139.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/roblox-promo-codes-2021-december-free-robux_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/speck-elements-robux-hack_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/book-on-how-to-hack-people-on-roblox_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/get-free-robux-codes-email_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/oprewards-com-login_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/counter-blox-roblox-offensive-case-hack_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/simplysarc_GM479516143.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/roblox-games-that-give-you-free-clothes_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/roblox-script-speed-hack-v3rmillion_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/coin-master-free-cards-link-2021_GM406889139.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/hack-dev-api-roblox_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/coin-master-free-100-spin_GM406889139.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/redeem-code-free-roblox_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/roblox-giant-survival-hack_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/free-robux-website_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_off00002fa3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2FA3 22120 bytes
SHA-256: 406e77985e6dea74ef8f7d1204718d6024f9bb62560f98478f023328980c6c50
font_01_sfnt_off000060dc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60DC 19112 bytes
SHA-256: ec301e39a6c4268cfdedc694c09b9d4da8a79e46ad5be9f7be336800a294d263

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