Malicious PDF — malware analysis report

Static analysis result for SHA-256 4f8488b079a1644d…

MALICIOUS

PDF

35.9 KB Created: 2021-06-19 01:56:26 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 6dde01d19ad9a86dac36fef79a8a9e78 SHA-1: e99a377a4750bc81f2e20ec489d0247a79e1f6cc SHA-256: 4f8488b079a1644df8f8f9cc577274eaedf919555aa3a510edfc842f2071d5e2
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF document contains a high-confidence heuristic firing for a game hack redirect lure, pointing to a suspicious URL. The document body and embedded URLs reinforce this lure, suggesting the primary goal is to trick users into visiting a site that likely hosts further malicious content or exploits. The ML classifier also strongly indicated maliciousness.

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/super-saiyan-simulator-2-roblox-hack-game-hack PDF link annotation
    • https://library.uigm.ac.id/repository/free-roblox-outfits-2021_GM431946152.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/need-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/how-to-get-hacks-on-roblox-counter-blox-roblox-offensive_GM431946152.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/robux-hack-generator_GM431946152.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/how-to-get-robux-hack-on-computer_GM431946152.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/free-robux-with-no-human-verification_GM431946152.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/coin-master-mod_GM406889139.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/free-robux-only-username-no-human-verification_GM431946152.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/tool-roblox-hack_GM431946152.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/coin-master-hack-pc-free_GM406889139.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/coin-master-free-spins-today-daily-links_GM406889139.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/cheat-code-super-city-roblox_GM431946152.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/free-robux-no-downloading-apps_GM431946152.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/free-spin-link-for-coin-master-game_GM406889139.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/spin-coin-master-free_GM406889139.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/minecraft-xbox-360-free_GM479516143.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/roblox-hacks-for-bloxburg_GM431946152.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/coin-master-hack-app-download-free_GM406889139.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/coinmaster-rewards_GM406889139.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/how-to-get-free-robux-xtimothyy_GM431946152.pdfIn PDF document text
    • https://www.roblox.com/.IIn 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_002_off0000315b.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x315B 23080 bytes
SHA-256: ea7574977f64f7b9c7267bb2b3d391beaf51f3c29ca74ae3fb84f5a4116bb782
font_01_sfnt_off0000651c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x651C 19760 bytes
SHA-256: baf580d08032304d925730ef5d7e910cdd5cfc89d8157aea3f449341648c8d15

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