Malicious PDF — malware analysis report

Static analysis result for SHA-256 29627dbcf33168eb…

MALICIOUS

PDF

30.4 KB Created: 2021-06-18 04:46:59 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 5db6d4f8e9f67f0dfa8735afb349505a SHA-1: 0f1298bba50b3b1fae6b916052efea364fb00cbe SHA-256: 29627dbcf33168ebb0fa44807525cec6b28d1d47e51fc8c396904a784244c3dc
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 0.9520

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/every-free-item-in-roblox-game-hack PDF link annotation
    • https://www.impactlive.ca/userfiles/files/roblox-cool-outfits-free_GM431946152.pdfIn PDF document text
    • https://www.impactlive.ca/userfiles/files/how-to-get-robux-hack-2021_GM431946152.pdfIn PDF document text
    • https://www.impactlive.ca/userfiles/files/how-do-you-get-robux-hack_GM431946152.pdfIn PDF document text
    • https://www.impactlive.ca/userfiles/files/break-free-super-mario-odyssey-roblox-id-codes_GM431946152.pdfIn PDF document text
    • https://www.impactlive.ca/userfiles/files/roblox-studio-free-models_GM431946152.pdfIn PDF document text
    • https://www.impactlive.ca/userfiles/files/how-do-you-hack-robux_GM431946152.pdfIn PDF document text
    • https://www.impactlive.ca/userfiles/files/roblox-redline-hack_GM431946152.pdfIn PDF document text
    • https://www.impactlive.ca/userfiles/files/roblox-hack-robux-generator-ipad_GM431946152.pdfIn PDF document text
    • https://www.impactlive.ca/userfiles/files/roblox-robux-hack-no-survey-working_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_off00002227.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2227 22036 bytes
SHA-256: f4a4f827170473e932d778efe412442b06e575a723791e9c6aff34f5ec7d6c1d
font_01_sfnt_off000052a0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x52A0 19120 bytes
SHA-256: 4b60b155e487f47b9677049a833da1c870c788a0cc84a0d9f0e33b489f461ea1

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