Malicious PDF — malware analysis report

Static analysis result for SHA-256 0a0ebee115adaa67…

MALICIOUS

PDF

32.7 KB Created: 2021-06-19 21:30:49 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: fcbeee6c24b14da98dba4dea893ffc9a SHA-1: 4eecbf0404d32d3392d3f6411fdbd409b865b245 SHA-256: 0a0ebee115adaa674b5a3b00c18b0b67ec982d91f2d10224c3d41e1f82719f74
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a common lure, presenting itself as a guide to obtaining free in-game items or hacks for popular games like Roblox and Coin Master. The embedded links, such as 'http://netcdn.co/app/431946152/roblox-how-to-change-username-for-free-game-hack', are designed to redirect users to potentially malicious websites. The ML classifier strongly indicated maliciousness, and the presence of numerous game-related lures reinforces the assessment of a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9824

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-how-to-change-username-for-free-game-hack PDF link annotation
    • http://perpus.stmik-im.ac.id/repository/coin-master-spin-and-coins-free_GM406889139.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/coin-master-free-spin-link-new_GM406889139.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/hacks-para-mad-city-roblox_GM431946152.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/how-to-generate-free-coin-master-spin_GM406889139.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/coin-master-free-spins-and-coins-daily-links_GM406889139.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/mcpe-master-coins-hack-download_GM406889139.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/how-to-hack-someones-account-on-roblox_GM431946152.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/free-robux-no-password_GM431946152.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/norwegian-resort-music-roblox-hack_GM431946152.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/20-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/how-to-get-any-free-catalog-item-in-roblox-zombierule_GM431946152.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/free-robux-now_GM431946152.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/spin-free-coin-master_GM406889139.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/coin-master-heaven-free-spins-link-2021-today_GM406889139.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/coin-master-blogspot-links_GM406889139.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/coin-master-hack-apk-latest-version-2021_GM406889139.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/free-pet-food-on-coin-master_GM406889139.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/coin-master-spin-cheat_GM406889139.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/links-for-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/tower-of-hell-roblox-hack_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_off00002aae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2AAE 21760 bytes
SHA-256: 809a10b0ff179324e98593c53d87587f14ebcef901d1b6515bc2577adedd5661
font_01_sfnt_off00005a97.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5A97 19240 bytes
SHA-256: 84f58b6c447c961f32e090daee0fd0aca9b10e90a32d6d3aea80298791775ca2

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