Malicious PDF — malware analysis report

Static analysis result for SHA-256 f697a5d689b64e53…

MALICIOUS

PDF

44.8 KB Created: 2021-06-03 10:50:01 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 740b8f9ebea4dda4f4f4551ccbf9d2e0 SHA-1: d54bfd19d476527f7c4dddee831e1d7aab60b235 SHA-256: f697a5d689b64e530576f5c5d7d5cea548daa9408c3b35657da52e29efab241a
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 0.9865

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 https://netcdn.online/app/406889139/how-to-hack-coin-master-with-lucky-patcher-game-hack PDF link annotation
    • http://lib.untad.ac.id//repository/coin-master-daily-free-spins-hack_GM406889139.pdfIn PDF document text
    • http://lib.untad.ac.id//repository/coin-master-free-spins-through-coin-pop_GM406889139.pdfIn PDF document text
    • http://lib.untad.ac.id/repository/tiktok-free-internet_GM835599320.pdfIn PDF document text
    • http://lib.untad.ac.id/repository/minecraft-ps4-code-free_GM479516143.pdfIn PDF document text
    • http://lib.untad.ac.id/repository/free-robux-giveaway_GM431946152.pdfIn PDF document text
    • http://lib.untad.ac.id/repository/get-free-followers-on-tiktok_GM835599320.pdfIn PDF document text
    • http://lib.untad.ac.id/repository/114-4-hacks_GM479516143.pdfIn PDF document text
    • http://lib.untad.ac.id//repository/is-minecraft-education-edition-free_GM479516143.pdfIn PDF document text
    • http://lib.untad.ac.id/repository/tiktok-free-view-iphone-keychain_GM835599320.pdfIn PDF document text
    • http://lib.untad.ac.id/repository/how-to-get-minecraft-bedrock-for-free_GM479516143.pdfIn PDF document text
    • http://lib.untad.ac.id//repository/how-to-hack-to-get-robux_GM431946152.pdfIn PDF document text
    • http://lib.untad.ac.id/repository/minecraft-coins-free_GM479516143.pdfIn PDF document text
    • http://lib.untad.ac.id//repository/minecraft-win-10-free_GM479516143.pdfIn PDF document text
    • http://lib.untad.ac.id//repository/free-robux-hack-generator_GM431946152.pdfIn PDF document text
    • http://lib.untad.ac.id/repository/free-pet-food-for-coin-master_GM406889139.pdfIn PDF document text
    • http://lib.untad.ac.id//repository/free-roblox-passwords_GM431946152.pdfIn PDF document text
    • http://lib.untad.ac.id//repository/roblox-avatar-free_GM431946152.pdfIn PDF document text
    • http://lib.untad.ac.id//repository/is-minecraft-earth-free_GM479516143.pdfIn PDF document text
    • http://lib.untad.ac.id/repository/how-to-hack-coin-master-without-root_GM406889139.pdfIn PDF document text
    • http://lib.untad.ac.id//repository/pokemon-go-basic-vs-premium_GM1094591345.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
stream_004_off0000507d.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x507D 25616 bytes
SHA-256: cddfbc580b102ab4ee3f3bfb6c746417626b4f98ff9fb37463c1a7ee696c8d65
font_01_sfnt_off00008b3c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8B3C 18720 bytes
SHA-256: 34d75f097297ed1589fbb05f13100ff3c6eb1e0ee8c8ab2f5ab039955987b94a

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