Malicious PDF — malware analysis report

Static analysis result for SHA-256 1f18ca8d49aea29a…

MALICIOUS

PDF

45.5 KB Created: 2021-06-04 01:02:25 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 1e3f762067f36c8ca7a45483c0643322 SHA-1: f2c17fcc9fcbc3abceb0c570efd59114d22b7f1d SHA-256: 1f18ca8d49aea29a027a8be37b38f77cf78b86e7658b12a0076b7bf416642ada
142 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a high-risk lure, specifically requesting recovery secrets or private keys, and links to a "free generator / game hack" website. The embedded URLs suggest a phishing or scam attempt, likely to steal credentials or lead users to further malicious content. No scripts were extracted, but the document's structure and linked URLs strongly indicate a malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9864

Heuristics 5

  • Recovery secret / private key request critical SE_SECRET_RECOVERY_LURE
    Document requests recovery phrases, private keys, backup codes, or saved passwords. Requests for these secrets in a document are high-risk.
  • 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/coin-master-gold-cards-free-game-hack PDF link annotation
    • http://opac.library.uib.ac.id//repository/microsoft-rewards-robux_GM431946152.pdfIn PDF document text
    • http://opac.library.uib.ac.id/repository/coin-master-hack-online-no-human-verification_GM406889139.pdfIn PDF document text
    • http://opac.library.uib.ac.id//repository/coin-master-unlimited-spin-and-coin-hack_GM406889139.pdfIn PDF document text
    • http://opac.library.uib.ac.id/repository/free-roblox-promo-codes-for-robux_GM431946152.pdfIn PDF document text
    • http://opac.library.uib.ac.id/repository/free-robux-only-username-no-human-verification_GM431946152.pdfIn PDF document text
    • http://opac.library.uib.ac.id//repository/how-to-get-free-gamepasses-on-roblox_GM431946152.pdfIn PDF document text
    • http://opac.library.uib.ac.id/repository/www-robux-us_GM431946152.pdfIn PDF document text
    • http://opac.library.uib.ac.id//repository/free-robux-cards_GM431946152.pdfIn PDF document text
    • http://opac.library.uib.ac.id/repository/coin-master-35-16-hack-apk_GM406889139.pdfIn PDF document text
    • http://opac.library.uib.ac.id/repository/can-you-download-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://opac.library.uib.ac.id//repository/cheats-coin-master-free_GM406889139.pdfIn PDF document text
    • http://opac.library.uib.ac.id//repository/coin-master-codes_GM406889139.pdfIn PDF document text
    • http://opac.library.uib.ac.id/repository/free-mods-for-minecraft-pe_GM479516143.pdfIn PDF document text
    • http://opac.library.uib.ac.id/repository/minecraft-pe-free-ios_GM479516143.pdfIn PDF document text
    • http://opac.library.uib.ac.id/repository/free-minecraft-java-edition-codes_GM479516143.pdfIn PDF document text
    • http://opac.library.uib.ac.id/repository/coin-master-cheat-codes-free_GM406889139.pdfIn PDF document text
    • http://opac.library.uib.ac.id//repository/hack-coin-master-apk-358_GM406889139.pdfIn PDF document text
    • http://opac.library.uib.ac.id//repository/minecraft-bedrock-download-pc-free_GM479516143.pdfIn PDF document text
    • http://opac.library.uib.ac.id/repository/coin-master-free-coins-link_GM406889139.pdfIn PDF document text
    • http://opac.library.uib.ac.id/repository/coin-master-hack-blogspot_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
stream_004_off00005444.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5444 26908 bytes
SHA-256: 6a38828e72ec6caf191f74d2e68fa9e60e561ad94c5c3d39cec9f34e73da49cd
font_01_sfnt_off00009039.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9039 17960 bytes
SHA-256: 5f0d383e38c54a4b706fba9e56337a6488be6196f7a5d6bfa1241f48271576e4

Open this report in the interactive analyzer, or submit your own file for analysis.