Malicious PDF — malware analysis report

Static analysis result for SHA-256 95d2ec552d9c221b…

MALICIOUS

PDF

34.9 KB Created: 2021-07-04 03:21:30 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: 7d5894366f4f78da72f2601d43b5a33b SHA-1: 31e4a49e67d9c65ac6610915df332f6a2c2eeacb SHA-256: 95d2ec552d9c221b3d0cc4971c6341117691501787b38afe5d58e8ce65d3eb62
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

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.tw/app/431946152/roblox-phantom-forces-hack-game-hack PDF link annotation
    • http://www.peterbarsony.com/userfiles/files/pokemon-go-free-move_GM1094591345.pdfIn PDF document text
    • http://www.peterbarsony.com/userfiles/files/get-free-robux-on-roblox-app_GM431946152.pdfIn PDF document text
    • http://www.peterbarsony.com/userfiles/files/coin-master-mod-apk-hack_GM406889139.pdfIn PDF document text
    • http://www.peterbarsony.com/userfiles/files/wwwhaktutsin-2021-08-coinmasterfreespinandcoinlinkhtml-m-1_GM406889139.pdfIn PDF document text
    • http://www.peterbarsony.com/userfiles/files/how-do-you-get-free-tiktok-followers_GM835599320.pdfIn PDF document text
    • http://www.peterbarsony.com/userfiles/files/free-spins-for-coin-masters_GM406889139.pdfIn PDF document text
    • http://www.peterbarsony.com/userfiles/files/free-robux-wheel_GM431946152.pdfIn PDF document text
    • http://www.peterbarsony.com/userfiles/files/minecraft-java-edition-download-free_GM479516143.pdfIn PDF document text
    • http://www.peterbarsony.com/userfiles/files/roblox-birthday-invitation-free_GM431946152.pdfIn PDF document text
    • http://www.peterbarsony.com/userfiles/files/hacker-commands-for-roblox_GM431946152.pdfIn PDF document text
    • http://www.peterbarsony.com/userfiles/files/headphones-free-roblox_GM431946152.pdfIn PDF document text
    • http://www.peterbarsony.com/userfiles/files/how-to-cheat-on-roblox-with-cheat-engine_GM431946152.pdfIn PDF document text
    • http://www.peterbarsony.com/userfiles/files/how-to-actually-get-free-robux_GM431946152.pdfIn PDF document text
    • http://www.peterbarsony.com/userfiles/files/blogspot-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://www.peterbarsony.com/userfiles/files/roblox-mod-apk-hack_GM431946152.pdfIn PDF document text
    • http://www.peterbarsony.com/userfiles/files/free-working-robux-codes_GM431946152.pdfIn PDF document text
    • http://www.peterbarsony.com/userfiles/files/free-coins-coin-master-no-human-verification_GM406889139.pdfIn PDF document text
    • http://www.peterbarsony.com/userfiles/files/pokemon-go-free-box_GM1094591345.pdfIn PDF document text
    • http://www.peterbarsony.com/userfiles/files/roblox-hack-robux-unlimited-free-on-android-ios-100-working_GM431946152.pdfIn PDF document text
    • http://www.peterbarsony.com/userfiles/files/free-robux-com-roblox_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_off00002ff4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2FF4 22596 bytes
SHA-256: 9d6393c5e71c5ccb535c343edf4eeb2e6b86a3cc8450f16e0abbe8e0d74bb4f0
font_01_sfnt_off00006264.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6264 19504 bytes
SHA-256: 3aab1e5f5324586642ccc53f6d59b2a14e7a921b9776a263d03688244dfb997f

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