Malicious PDF — malware analysis report

Static analysis result for SHA-256 e7a7d2bc086fd3ec…

MALICIOUS

PDF

35.2 KB Created: 2021-06-29 02:48:27 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-05
MD5: 6231bd2ca4962ad47805e3dc035b681a SHA-1: 579883490ab7c50d687ef632e8578117939ee85d SHA-256: e7a7d2bc086fd3ec233eeb86a6fb30c4e3ddcb6429455549d940f24817c908b5
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

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.co/app/431946152/roblox-hack-unlimited-robux-robuxplus-live-game-hack PDF link annotation
    • https://c2o-library.net/catalog/repository/free-roblox-oof-sound_GM431946152.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/how-to-get-free-robux-copy-and-paste_GM431946152.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/hack-2021-roblox_GM431946152.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/free-roblox-groups-with-funds-list_GM431946152.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/free-gtv-in-roblox_GM431946152.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/hack-account-roblox-2021-edit-this-cookies_GM431946152.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/roblox-electric-state-darkrp-hack-money-script_GM431946152.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/minecraft-survival-hacks_GM479516143.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/sprinting-sim-roblox-hacks_GM431946152.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/coin-master-free-spins-for-today_GM406889139.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/how-to-get-free-clothes-on-roblox-2021_GM431946152.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/9-legit-ways-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/how-to-sue-roblox_GM431946152.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/download-hack-coin-master_GM406889139.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/funny-roblox-hacker-names_GM431946152.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/free-robux-cosed_GM431946152.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/how-to-get-free-10-000-robux_GM431946152.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/monttechscom-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/how-to-get-minecraft-for-free-on-mac_GM479516143.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/roblox-gold-chain-free_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_off00003090.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3090 22456 bytes
SHA-256: 01e15dfe54ef39342c508bdd4fa1012b4a54bd89159776e6557428173b6165a9
font_01_sfnt_off00006251.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6251 19744 bytes
SHA-256: 98af224a86ba1c9f0eb5e8907498d3afaa0a93bb6d36e6bdef55658272fd9d99

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