Malicious PDF — malware analysis report

Static analysis result for SHA-256 9daf489a69b56e02…

MALICIOUS

PDF

34.3 KB Created: 2021-06-30 03:02:33 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-18
MD5: aab30783f6c58c3629918d4ccfdf6c09 SHA-1: abc58472a980b01de3d37f01c28f6b4121728300 SHA-256: 9daf489a69b56e026159d27d97b50e7ef1e3985370fe8579ef939cc52fbb167b
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/counter-blox-roblox-offensive-hacks-walls-game-hack PDF link annotation
    • http://lib.untad.ac.id/repository/coin-master-free-spin-ml_GM406889139.pdfIn PDF document text
    • http://lib.untad.ac.id//repository/make-your-own-minecraft-server-free_GM479516143.pdfIn PDF document text
    • http://lib.untad.ac.id/repository/roblox-how-to-sell-a-t-shirt-for-free_GM431946152.pdfIn PDF document text
    • http://lib.untad.ac.id/repository/minecraft-realms-free-codes_GM479516143.pdfIn PDF document text
    • http://lib.untad.ac.id//repository/minecraft-name-tag-hacks_GM479516143.pdfIn PDF document text
    • http://lib.untad.ac.id/repository/roblox-games-free_GM431946152.pdfIn PDF document text
    • http://lib.untad.ac.id/repository/roblox-avatar-editor-free_GM431946152.pdfIn PDF document text
    • http://lib.untad.ac.id//repository/roblox-earn_GM431946152.pdfIn PDF document text
    • http://lib.untad.ac.id/repository/how-to-hack-into-roblox-accounts-using-a-discord_GM431946152.pdfIn PDF document text
    • http://lib.untad.ac.id/repository/roblox-hack-exe_GM431946152.pdfIn PDF document text
    • http://lib.untad.ac.id/repository/roblox-prison-life-v202-hack-download_GM431946152.pdfIn PDF document text
    • http://lib.untad.ac.id/repository/roblox-mass-hacked_GM431946152.pdfIn PDF document text
    • http://lib.untad.ac.id/repository/hack-cuenta-roblox_GM431946152.pdfIn PDF document text
    • http://lib.untad.ac.id//repository/coin-master-daily-gifts_GM406889139.pdfIn PDF document text
    • http://lib.untad.ac.id//repository/coin-master-hack-no-verification-no-signup_GM406889139.pdfIn PDF document text
    • http://lib.untad.ac.id/repository/roblox-script-hacks_GM431946152.pdfIn PDF document text
    • http://lib.untad.ac.id/repository/robux-earner_GM431946152.pdfIn PDF document text
    • http://lib.untad.ac.id/repository/roblox-redeem-card-codes-free_GM431946152.pdfIn PDF document text
    • http://lib.untad.ac.id/repository/games-on-roblox-that-give-free-robux_GM431946152.pdfIn PDF document text
    • http://lib.untad.ac.id/repository/robux-gift-card-online-free_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_off00002f9a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F9A 21948 bytes
SHA-256: 8099aa794f32dee05e82dddcfead85acd17ddae05e49bd479f6ff4f05434a74c
font_01_sfnt_off00005fdb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5FDB 19332 bytes
SHA-256: 25f5aa6589822927fd0c4b7f7e15b27e3f0b3d86aca23659970eb67d97ade32b

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