Malicious PDF — malware analysis report

Static analysis result for SHA-256 f4dd3d204b4acfc6…

MALICIOUS

PDF

34.0 KB Created: 2021-07-04 02:25:56 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: ca3a9ba23a1fcfb52cfc12bdece88332 SHA-1: c62b43fa756fe82e9bb6612144db9844648bb66a SHA-256: f4dd3d204b4acfc64a5beff7313d5de616f42c49cef160da03981a1e1d357f4a
122 Risk Score

Malware Insights

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

This PDF document was flagged as malicious by an ML classifier. It uses a clipboard-command (paste-and-run) lure. 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 5

  • 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.
  • Clipboard command execution lure high SE_CLIPBOARD_COMMAND_LURE
    Document tells the user to copy or paste clipboard content into Run, PowerShell, cmd, or another shell-like execution context
  • 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-game-free-download-game-hack PDF link annotation
    • http://digilibfisip.unla.ac.id/repository/cheats-do-roblox-cs-go_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/roblox-tycoon-hack_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/get-free-robux-generator_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/free-roblox-outfits_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/how-to-get-free-coins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/roblox-cheats-for-free-tix_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/get-roblox-items-free_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/free-robux-no-gift-card_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/rbx-place-free-robux_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/coin-master-spin-hack-link_GM406889139.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/descargar-hacks-en-roblox_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/roblox-hack-build-tools_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/video-roblox-promocodes-for-free-wings_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/hacked-shirts-roblox_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/master-coins-free_GM406889139.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/free-roblox-rust-2021_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/how-to-close-snippet-hack-roblox_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/minecraft-apk-free-download_GM479516143.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/how-to-speed-hack-las-vegas-on-roblox_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/free-funny-roblox-outfits_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_off00003028.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3028 21272 bytes
SHA-256: 496ba5f1e911c274268ee04b56c8604ba21eb110944e616c845809145d08abcc
font_01_sfnt_off00005e8c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E8C 19416 bytes
SHA-256: a2f27b52acabb0167f9a542fed976ebd18b11ecd499185880ec5860d5673245b

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