Malicious PDF — malware analysis report

Static analysis result for SHA-256 700ddb6d6f7e825d…

MALICIOUS

PDF

34.3 KB Created: 2021-07-05 19:18:52 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 480e9915015a9183dbbcaf14eb0f56ad SHA-1: bd171a515ea92f2cd329866fccca0fce0924f3c2 SHA-256: 700ddb6d6f7e825d8599544fd7ed78a758c395789d39193f80cc60f2c93c8735
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/how-to-get-minecraft-for-free-on-iphone-2021-game-hack PDF link annotation
    • http://www.library.umbjm.ac.id/repository/can-i-get-robux-for-free_GM431946152.pdfIn PDF document text
    • http://www.library.umbjm.ac.id/repository/free-robux-generator-no-verification_GM431946152.pdfIn PDF document text
    • http://www.library.umbjm.ac.id/repository/play-minecraft-pocket-edition-for-free_GM479516143.pdfIn PDF document text
    • http://www.library.umbjm.ac.id/repository/how-to-get-free-mods-in-minecraft_GM479516143.pdfIn PDF document text
    • http://www.library.umbjm.ac.id/repository/free-robux-on-iphone_GM431946152.pdfIn PDF document text
    • http://www.library.umbjm.ac.id/repository/roblox-hotel-elephant-infinite-money-hack_GM431946152.pdfIn PDF document text
    • http://www.library.umbjm.ac.id/repository/how-to-hack-m-coins-mcpe-master_GM406889139.pdfIn PDF document text
    • http://www.library.umbjm.ac.id/repository/roblox-sans-shirt-free_GM431946152.pdfIn PDF document text
    • http://www.library.umbjm.ac.id/repository/free-spin-link-of-coin-master_GM406889139.pdfIn PDF document text
    • http://www.library.umbjm.ac.id/repository/how-do-you-get-robux_GM431946152.pdfIn PDF document text
    • http://www.library.umbjm.ac.id/repository/100-free-spins-for-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://www.library.umbjm.ac.id/repository/coin-master-free-spins-heaven_GM406889139.pdfIn PDF document text
    • http://www.library.umbjm.ac.id/repository/free-robux-script_GM431946152.pdfIn PDF document text
    • http://www.library.umbjm.ac.id/repository/free-hair-roblox_GM431946152.pdfIn PDF document text
    • http://www.library.umbjm.ac.id/repository/hack-coin-master-game-apk_GM406889139.pdfIn PDF document text
    • http://www.library.umbjm.ac.id/repository/free-spins-for-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://www.library.umbjm.ac.id/repository/roblox-free-robux-codes_GM431946152.pdfIn PDF document text
    • http://www.library.umbjm.ac.id/repository/coin-master-fun-hack-online_GM406889139.pdfIn PDF document text
    • http://www.library.umbjm.ac.id/repository/robux-come_GM431946152.pdfIn PDF document text
    • http://www.library.umbjm.ac.id/repository/coin-master-mod-apk-free-download_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_off000031b8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x31B8 21724 bytes
SHA-256: dc7c69d7f6a64f5f36d0c73679f9ebc19991b299973ff8c677e1c0c875909c92
font_01_sfnt_off00006166.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6166 18904 bytes
SHA-256: 3f6de96f4b396aaecbe7539d3d77eba67bd96800247be874433ee481b70cf8cc

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