Malicious PDF — malware analysis report

Static analysis result for SHA-256 e8582fae42edf99a…

MALICIOUS

PDF

35.3 KB Created: 2021-07-04 11:59:10 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 979d047298da7dedc1baa398fa75a84e SHA-1: 1881a0909e6a00f086c98891aff47f576782d6ee SHA-256: e8582fae42edf99aa8e1b671cb6bf08c9745288d1e78f4ee3d1a6984308f2797
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.tw/app/431946152/free-roblox-card-codes-game-hack PDF link annotation
    • http://slims.abulyatama.ac.id/repository/how-to-get-free-robux-rbxboost_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/hack-game-toool-for-roblox_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/roblox-robux-hack-no-verification_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/how-to-get-free-robux-without-downloading-any-games_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/how-do-you-get-robux_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/how-do-i-get-free-robux_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id//repository/free-robux-no-download_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id//repository/how-to-get-free-coins-on-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/roblox-brick-master-cheat-video_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/how-to-get-tiktok-free-followers_GM835599320.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/minecraft-xbox-360-free-download-code_GM479516143.pdfIn PDF document text
    • http://slims.abulyatama.ac.id//repository/minecraft-free-computer-game_GM479516143.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/roblox-outfit-ideas-free_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/free-cool-shirt-roblox_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/coin-master-cheats-without-verification_GM406889139.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/free-roblox-accounts-with-robux-that-work-2021_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/how-to-find-coin-master-free-spin-link_GM406889139.pdfIn PDF document text
    • http://slims.abulyatama.ac.id//repository/coin-master-link_GM406889139.pdfIn PDF document text
    • http://slims.abulyatama.ac.id//repository/pubg-uc-and-rp_GM1330123889.pdfIn PDF document text
    • http://slims.abulyatama.ac.id//repository/coin-master-400-spin-link-today_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_off000031a6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x31A6 23160 bytes
SHA-256: 40d617d6f2a5d04f2bd8471d6e8f55cc8158ec3bfa3ffceb7f5c39ec2697c813
font_01_sfnt_off000065c7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x65C7 18824 bytes
SHA-256: 5863a25f68c4dee89f1f332a8beb3d1800c88bf377be75211d7322c344e9e5bb

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