Malicious PDF — malware analysis report

Static analysis result for SHA-256 e69bb878b1ca9059…

MALICIOUS

PDF

35.2 KB Created: 2021-07-05 07:10:09 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: 7195ec15207d80922cb822031f238e7b SHA-1: 6f0e0b3f2ec70910165a108541a78732d36fa305 SHA-256: e69bb878b1ca905944716d200806c26f008f3bda7965e7a605e69894bfaa4802
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/479516143/wurst-client-download-game-hack PDF link annotation
    • https://digilib.stieama.ac.id/repository/robux-hack-give-250k_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/how-to-make-roblox-clothes-for-free_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/what-tiktok-free-movies_GM835599320.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/how-do-you-earn-robux_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/flame-gg-free-robux-https-flame-gg-zeph_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/coin-master-game-hack-app_GM406889139.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/roblox-speed-hack-2021-august_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/free-roblox-2021-agreeing_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/free-robux-codes-generator-no-verification_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/how-to-get-denisdaily-shirt-in-roblox-for-free_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/robux-fun-hack_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/free-script-runner-roblox_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/rbuxcheats-club-roblox-hack-gold-generator_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/coin-master-daily-free-spins-blog_GM406889139.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/money-hack-for-royall-high-school-roblox_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/aimbot-hack-roblox-cbro_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/free-girl-hair-roblox_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/does-cheat-engine-wk-on-roblox-any-more_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/coin-master-spin-hack-pc_GM406889139.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/how-to-hack-roblox-with-dll-njector_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_off000031b8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x31B8 23068 bytes
SHA-256: 165a3019928a34caa96934c049352c2b4d4e366d476f89de77c85cf6a2f143de
font_01_sfnt_off00006545.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6545 18916 bytes
SHA-256: fe5b8b06ad39d3edbc090aa20693a1c8a054cb2710cc0055549efb945d801e77

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