Malicious PDF — malware analysis report

Static analysis result for SHA-256 abaa70bd969b05dd…

MALICIOUS

PDF

34.5 KB Created: 2021-06-25 23:10:44 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 3fd722a6f8cba8e455a778cf4fa28085 SHA-1: aacb6b7a99dfcb8f4aa472dfdd3e1ef2e53a15d4 SHA-256: abaa70bd969b05dddc004fee782b43735a2f29d229afc3f17145237d95c305d6
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/how-to-sell-a-free-shirt-roblox-game-hack PDF link annotation
    • http://www.vetmed.fkh.unair.ac.id/repository/roblox-any-game-hack-script_GM431946152.pdfIn PDF document text
    • http://www.vetmed.fkh.unair.ac.id/repository/minecraft-apk-download-v1-144-2-free_GM479516143.pdfIn PDF document text
    • http://vetmed.fkh.unair.ac.id/repository/free-unicorn-roblox-adopt-me_GM431946152.pdfIn PDF document text
    • http://www.vetmed.fkh.unair.ac.id/repository/free-robux-750k_GM431946152.pdfIn PDF document text
    • http://www.vetmed.fkh.unair.ac.id/repository/coin-master-free-spins-link-2021_GM406889139.pdfIn PDF document text
    • http://www.vetmed.fkh.unair.ac.id/repository/roiblox-free-robux-cards_GM431946152.pdfIn PDF document text
    • http://vetmed.fkh.unair.ac.id/repository/coin-master-daily-free-spins_GM406889139.pdfIn PDF document text
    • http://vetmed.fkh.unair.ac.id/repository/free-minecraft-skins_GM479516143.pdfIn PDF document text
    • http://vetmed.fkh.unair.ac.id/repository/rbxoffer-com-free-robux_GM431946152.pdfIn PDF document text
    • http://vetmed.fkh.unair.ac.id/repository/picture-roblox_GM431946152.pdfIn PDF document text
    • http://vetmed.fkh.unair.ac.id/repository/free-robux-games-on-roblox_GM431946152.pdfIn PDF document text
    • http://www.vetmed.fkh.unair.ac.id/repository/roblox-robux-hack-generator_GM431946152.pdfIn PDF document text
    • http://www.vetmed.fkh.unair.ac.id/repository/how-to-get-free-robux-no-verification-2021_GM431946152.pdfIn PDF document text
    • http://www.vetmed.fkh.unair.ac.id/repository/free-spins-on-coin-master-cheat_GM406889139.pdfIn PDF document text
    • http://www.vetmed.fkh.unair.ac.id/repository/claim-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://www.vetmed.fkh.unair.ac.id/repository/free-passwords-for-roblox_GM431946152.pdfIn PDF document text
    • http://vetmed.fkh.unair.ac.id/repository/play-games-and-get-free-robux_GM431946152.pdfIn PDF document text
    • http://vetmed.fkh.unair.ac.id/repository/free-gameplay-to-use-shooting-star-roblox_GM431946152.pdfIn PDF document text
    • http://vetmed.fkh.unair.ac.id/repository/how-to-get-free-robux-generator_GM431946152.pdfIn PDF document text
    • http://www.vetmed.fkh.unair.ac.id/repository/new-free-money-links-coin-master_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_off00002fcc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2FCC 22316 bytes
SHA-256: d0d97921094fa319b59f9ddb199d0ec7612c0d91c0962134d5dca628038c2faa
font_01_sfnt_off0000616b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x616B 19204 bytes
SHA-256: b243e76df70d01787b4abb9d61239a3ba2c96d45c52dc487d8e46adcb473bba1

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