Malicious PDF — malware analysis report

Static analysis result for SHA-256 af3b10fb642ce1ca…

MALICIOUS

PDF

34.3 KB Created: 2021-06-20 05:10:49 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 0fccb4bfb62b6717ac14f877d8fa562e SHA-1: 273ebef3369457e3a3da86c656f5d1b9c66d45fc SHA-256: af3b10fb642ce1cadc349fd97b162fb11606776460f3f85564cdaf7bfc55c886
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/roblox-hack-deutsch-game-hack PDF link annotation
    • http://perpus.wdh.ac.id/repository/free-robux-generator-no-survey-or-human-verification-2021_GM431946152.pdfIn PDF document text
    • http://perpus.wdh.ac.id//repository/como-hackear-coin-master-gratis_GM406889139.pdfIn PDF document text
    • http://perpus.wdh.ac.id/repository/coin-master-hack-app-ios-download_GM406889139.pdfIn PDF document text
    • http://perpus.wdh.ac.id/repository/free-roblox-model_GM431946152.pdfIn PDF document text
    • http://perpus.wdh.ac.id//repository/coin-master-download_GM406889139.pdfIn PDF document text
    • http://perpus.wdh.ac.id/repository/coinmaster-rewards_GM406889139.pdfIn PDF document text
    • http://perpus.wdh.ac.id/repository/what-do-points-do-in-roblox_GM431946152.pdfIn PDF document text
    • http://perpus.wdh.ac.id/repository/phantoms-forces-roblox-hack-weapon_GM431946152.pdfIn PDF document text
    • http://perpus.wdh.ac.id//repository/coin-master-free-spins-link-march-2021_GM406889139.pdfIn PDF document text
    • http://perpus.wdh.ac.id/repository/como-hackear-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://perpus.wdh.ac.id/repository/free-robux-picture_GM431946152.pdfIn PDF document text
    • http://perpus.wdh.ac.id/repository/easy-robux-generator_GM431946152.pdfIn PDF document text
    • http://perpus.wdh.ac.id/repository/robux-hack-download-pc-2021_GM431946152.pdfIn PDF document text
    • http://perpus.wdh.ac.id//repository/coin-master-link_GM406889139.pdfIn PDF document text
    • http://perpus.wdh.ac.id/repository/pastebin-roblox-free-robux-real_GM431946152.pdfIn PDF document text
    • http://perpus.wdh.ac.id/repository/free-robux-website-bloxburg-sign_GM431946152.pdfIn PDF document text
    • http://perpus.wdh.ac.id//repository/bad-minecraft-free_GM479516143.pdfIn PDF document text
    • http://perpus.wdh.ac.id/repository/free-minecraft-mods_GM479516143.pdfIn PDF document text
    • http://perpus.wdh.ac.id/repository/robux-free-gift-card_GM431946152.pdfIn PDF document text
    • http://perpus.wdh.ac.id/repository/how-to-get-minecraft-for-free_GM479516143.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
font_00_sfnt_off00002e26.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2E26 22444 bytes
SHA-256: 3dc2fa91d2bbf7e57699ebf42f1d15cebf0d06234328c5f104ed5cfde08a1ba1
font_01_sfnt_off00006073.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6073 19236 bytes
SHA-256: caaad7f73ca9d85e8a91de98e61b7ae5a16c64b14ad30d13c097ef71739e5a20

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