Malicious PDF — malware analysis report

Static analysis result for SHA-256 03d76858c4047ca2…

MALICIOUS

PDF

35.4 KB Created: 2021-07-03 14:06:35 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-05
MD5: f172e07b517af55fbc3b91d0d142abfe SHA-1: bf51e26d2ab5181b096a5d3cc2b87a0bcba6f144 SHA-256: 03d76858c4047ca2d7a904f7789abd8f43fad20a9d868bfa9e47ed00aeaa1024
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a link disguised as a game hack generator, which is a common lure for phishing or malware distribution. The ML classifier strongly flagged this PDF as malicious. The embedded URL likely leads to a site that either hosts a malicious payload or attempts to trick the user into downloading one.

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/406889139/master-8-ball-pool-free-coins-game-hack PDF link annotation
    • https://loba.com.vn/public/upload/files/coin-master-3rd-village-free-2021-gift-card_GM406889139.pdfIn PDF document text
    • https://loba.com.vn/public/upload/files/free-robux-no-scam-or-hack_GM431946152.pdfIn PDF document text
    • https://loba.com.vn/public/upload/files/roblox-synapse-x-download-free_GM431946152.pdfIn PDF document text
    • https://loba.com.vn/public/upload/files/free-robux-if-join-group_GM431946152.pdfIn PDF document text
    • https://loba.com.vn/public/upload/files/how-do-you-get-free-robux-without-paying_GM431946152.pdfIn PDF document text
    • https://loba.com.vn/public/upload/files/infinite-jump-hack-roblox-2021_GM431946152.pdfIn PDF document text
    • https://loba.com.vn/public/upload/files/free-spin-and-coin-blogspot_GM406889139.pdfIn PDF document text
    • https://loba.com.vn/public/upload/files/roblox-cheap-hack-buy_GM431946152.pdfIn PDF document text
    • https://loba.com.vn/public/upload/files/minecraft-free-download-android_GM479516143.pdfIn PDF document text
    • https://loba.com.vn/public/upload/files/how-much-robux-can-you-get-with-1-million-dollars_GM431946152.pdfIn PDF document text
    • https://loba.com.vn/public/upload/files/how-to-hack-coin-master_GM406889139.pdfIn PDF document text
    • https://loba.com.vn/public/upload/files/how-to-speed-hack-in-roblox-2021_GM431946152.pdfIn PDF document text
    • https://loba.com.vn/public/upload/files/how-to-get-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • https://loba.com.vn/public/upload/files/roblox-games-with-free-boombox_GM431946152.pdfIn PDF document text
    • https://loba.com.vn/public/upload/files/free-robux-on-meep-city_GM431946152.pdfIn PDF document text
    • https://loba.com.vn/public/upload/files/how-to-hack-roblox-trackid-sp006_GM431946152.pdfIn PDF document text
    • https://loba.com.vn/public/upload/files/free-sketch-roblox-hacked-client_GM431946152.pdfIn PDF document text
    • https://loba.com.vn/public/upload/files/free-money-and-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://loba.com.vn/public/upload/files/cheats-for-the-plaza-roblox_GM431946152.pdfIn PDF document text
    • https://loba.com.vn/public/upload/files/roblox-free-accounts-pastebin_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
stream_002_off000032e6.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x32E6 22956 bytes
SHA-256: 95fe51e96ba6c7b96f3840c103d7efe326af3e1c4492885972ed5c7e94c84ed1
font_01_sfnt_off000066bd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x66BD 18652 bytes
SHA-256: f1c889cea97dba01ef60a47a7e02dd9d08b14b091404207e980aea824e3c74e3

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