Malicious PDF — malware analysis report

Static analysis result for SHA-256 63e3773c1a7e70ff…

MALICIOUS

PDF

35.0 KB Created: 2021-06-18 13:16:58 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-18
MD5: a365631626fd5109711b6744778ce1df SHA-1: bd563db11c04e1ad7255732451963d561e062962 SHA-256: 63e3773c1a7e70ff7518bf92fdf31ec695c2b55d33425d646f299c6986392813
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/free-money-hack-roblox-jailbreak-game-hack PDF link annotation
    • http://parsbaft.com/images/roblox-free-hats_GM431946152.pdfIn PDF document text
    • http://parsbaft.com/images/roblox-avatar-com_GM431946152.pdfIn PDF document text
    • http://parsbaft.com/images/gain-robux_GM431946152.pdfIn PDF document text
    • http://parsbaft.com/images/how-to-get-free-robux-2021-easy_GM431946152.pdfIn PDF document text
    • http://parsbaft.com/images/get-free-minecraft-account_GM479516143.pdfIn PDF document text
    • http://parsbaft.com/images/roblox-how-to-get-free-animations_GM431946152.pdfIn PDF document text
    • http://parsbaft.com/images/how-to-hack-coin-master-ios-no-jailbreak_GM406889139.pdfIn PDF document text
    • http://parsbaft.com/images/free-robux-scam-games-2021_GM431946152.pdfIn PDF document text
    • http://parsbaft.com/images/coin-master-free-spins-2021-hack_GM406889139.pdfIn PDF document text
    • http://parsbaft.com/images/coin-master-33-hack-version-download_GM406889139.pdfIn PDF document text
    • http://parsbaft.com/images/minecraft-free-download-android_GM479516143.pdfIn PDF document text
    • http://parsbaft.com/images/robux-free-com_GM431946152.pdfIn PDF document text
    • http://parsbaft.com/images/master-free-spin-and-coin-link_GM406889139.pdfIn PDF document text
    • http://parsbaft.com/images/is-it-easy-to-hack-a-roblox-account_GM431946152.pdfIn PDF document text
    • http://parsbaft.com/images/coin-master-free-gifts_GM406889139.pdfIn PDF document text
    • http://parsbaft.com/images/coin-master-200-spin-link_GM406889139.pdfIn PDF document text
    • http://parsbaft.com/images/pubg-uc-center_GM1330123889.pdfIn PDF document text
    • http://parsbaft.com/images/roblox-hack-download_GM431946152.pdfIn PDF document text
    • http://parsbaft.com/images/coin-master-level-4_GM406889139.pdfIn PDF document text
    • http://parsbaft.com/images/roblox-best-exploit-cheat-ever_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_off00002f22.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F22 23132 bytes
SHA-256: 2a8af3f4d9906450007c39a42b2036c88e0f6ad8290d7f7675e86dbc97ac4f9c
font_01_sfnt_off00006326.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6326 19296 bytes
SHA-256: ccc4ef9596453fab023abd9e6a0e92c2fe57beee63428bb4a29aa5b156c2c031

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