Malicious PDF — malware analysis report

Static analysis result for SHA-256 401da6086e817058…

MALICIOUS

PDF

33.8 KB Created: 2021-06-25 20:52:19 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 3c6282db952aafd3b0c4532bc44fb5de SHA-1: d051fdffdf893ee3040b8dff908ac19b48acfcf4 SHA-256: 401da6086e8170589d1584b4f4417e06cb3e0ea4ab1aac6d167e0e05fde0da1d
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-pal-hair-is-now-free-game-hack PDF link annotation
    • http://perpus.wdh.ac.id/repository/coin-master-fan-page-free-spins_GM406889139.pdfIn PDF document text
    • http://perpus.wdh.ac.id/repository/gold-cards-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://perpus.wdh.ac.id/repository/robux-xyz_GM431946152.pdfIn PDF document text
    • http://perpus.wdh.ac.id/repository/rblx-gg-free-robux_GM431946152.pdfIn PDF document text
    • http://perpus.wdh.ac.id//repository/coin-master-15-free-spin-link-of-last-5-days_GM406889139.pdfIn PDF document text
    • http://perpus.wdh.ac.id//repository/roblox-hack-site_GM431946152.pdfIn PDF document text
    • http://perpus.wdh.ac.id/repository/free-modded-minecraft-server_GM479516143.pdfIn PDF document text
    • http://perpus.wdh.ac.id/repository/coin-master-hack-app-2021-download_GM406889139.pdfIn PDF document text
    • http://perpus.wdh.ac.id//repository/roblox-gift-card-online-free_GM431946152.pdfIn PDF document text
    • http://perpus.wdh.ac.id/repository/how-to-get-free-robux-on-roblox-inspect-element_GM431946152.pdfIn PDF document text
    • http://perpus.wdh.ac.id/repository/roblox-hacke-auf-spaghetti_GM431946152.pdfIn PDF document text
    • http://perpus.wdh.ac.id/repository/cheez-it-cursor-roblox-downloaad-for-free_GM431946152.pdfIn PDF document text
    • http://perpus.wdh.ac.id/repository/coin-master-free-spin-software_GM406889139.pdfIn PDF document text
    • http://perpus.wdh.ac.id/repository/free-coin-master-game_GM406889139.pdfIn PDF document text
    • http://perpus.wdh.ac.id//repository/near-pubg-uc-code_GM1330123889.pdfIn PDF document text
    • http://perpus.wdh.ac.id/repository/coin-master-club-hack_GM406889139.pdfIn PDF document text
    • http://perpus.wdh.ac.id//repository/ways-to-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://perpus.wdh.ac.id/repository/how-can-i-hack-money-in-roblox_GM431946152.pdfIn PDF document text
    • http://perpus.wdh.ac.id//repository/minecraft-hack-client-18-9_GM479516143.pdfIn PDF document text
    • http://perpus.wdh.ac.id/repository/minecraft-pe-free-apk_GM479516143.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_off00002ee4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2EE4 21888 bytes
SHA-256: 658ad876390827fffd94a7387f8d065e8c234f5af8ea42b947ee6bac9da9aa61
font_01_sfnt_off00005f1e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F1E 19088 bytes
SHA-256: 5b918944f0bbbfe155468a9d0d8466a4f7dee5497ac2daad1bed3ca59536373b

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