Malicious PDF — malware analysis report

Static analysis result for SHA-256 2a5ff7ff1269cc15…

MALICIOUS

PDF

35.7 KB Created: 2021-06-20 11:30:59 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: b57623c8a05201ae784ea9069d111d65 SHA-1: af3c8f782bc89cf9a5e8adb70c522620440cdf64 SHA-256: 2a5ff7ff1269cc1558f8faf5a42a3dd22ccde8ed210f73992eb0c4edba95e012
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-phantom-forces-geld-hack-deutsch-game-hack PDF link annotation
    • http://wwlogistic.net/uploaded_files/userfiles/files/minecraft-life-hacks_GM479516143.pdfIn PDF document text
    • http://wwlogistic.net/uploaded_files/userfiles/files/robux-free-xyz_GM431946152.pdfIn PDF document text
    • http://wwlogistic.net/uploaded_files/userfiles/files/free-spins-coins-coin-master_GM406889139.pdfIn PDF document text
    • http://wwlogistic.net/uploaded_files/userfiles/files/roblox-santa-hat-free_GM431946152.pdfIn PDF document text
    • http://wwlogistic.net/uploaded_files/userfiles/files/free-robux-without-human-verification-2021_GM431946152.pdfIn PDF document text
    • http://wwlogistic.net/uploaded_files/userfiles/files/can-i-earn-free-robux_GM431946152.pdfIn PDF document text
    • http://wwlogistic.net/uploaded_files/userfiles/files/coin-master-rewards-app_GM406889139.pdfIn PDF document text
    • http://wwlogistic.net/uploaded_files/userfiles/files/roblox-help-free-robux_GM431946152.pdfIn PDF document text
    • http://wwlogistic.net/uploaded_files/userfiles/files/uirbx-club-robux-hack_GM431946152.pdfIn PDF document text
    • http://wwlogistic.net/uploaded_files/userfiles/files/free-robux-link_GM431946152.pdfIn PDF document text
    • http://wwlogistic.net/uploaded_files/userfiles/files/how-to-do-hacks-in-roblox-jailbreak_GM431946152.pdfIn PDF document text
    • http://wwlogistic.net/uploaded_files/userfiles/files/roblox-robux-generator-tool_GM431946152.pdfIn PDF document text
    • http://wwlogistic.net/uploaded_files/userfiles/files/minecraft-modded-client_GM479516143.pdfIn PDF document text
    • http://wwlogistic.net/uploaded_files/userfiles/files/how-to-get-free-robux-website_GM431946152.pdfIn PDF document text
    • http://wwlogistic.net/uploaded_files/userfiles/files/how-to-get-free-spins-on-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://wwlogistic.net/uploaded_files/userfiles/files/coin-master-free-spins-and-free-coins_GM406889139.pdfIn PDF document text
    • http://wwlogistic.net/uploaded_files/userfiles/files/free-robux-websites-that-actually-work_GM431946152.pdfIn PDF document text
    • http://wwlogistic.net/uploaded_files/userfiles/files/coin-master-free-spins-and-coins-link-haktuts_GM406889139.pdfIn PDF document text
    • http://wwlogistic.net/uploaded_files/userfiles/files/coin-master-free-spins-link-today-new-2021_GM406889139.pdfIn PDF document text
    • http://wwlogistic.net/uploaded_files/userfiles/files/minecraft-servers-that-allow-hacks_GM479516143.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_off0000326e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x326E 22428 bytes
SHA-256: 0b4b7695bfb1a60ecd25f8033d14c48fc1171409a46901db26598b70045cdc2b
font_01_sfnt_off00006425.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6425 19988 bytes
SHA-256: 7524fc2ada7d8699c95796590ef5f106bfb099319b83eab9148f44a31100d005

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