Malicious PDF — malware analysis report

Static analysis result for SHA-256 3ce0c1af392f11d7…

MALICIOUS

PDF

41.5 KB Created: 2021-05-14 14:01:00 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: e5b8c61cae19e2251b34f46aa04e8f31 SHA-1: dfb223da150676150f3f3420782b12d30cab4b8a SHA-256: 3ce0c1af392f11d74c38ecbf9185f98dd20401c6bd81d8bbdf6973df21426b56
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 0.9971

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 https://netcdn.xyz/app/406889139/coin-master-hack-spins-and-coins-unlimited-free-game-hack PDF link annotation
    • https://www.sauvonsleclimat.org/images/roblox-demon_GM431946152.pdfIn PDF document text
    • https://www.sauvonsleclimat.org/images/roblox-font-free_GM431946152.pdfIn PDF document text
    • https://www.sauvonsleclimat.org/images/coin-master-hack-download-ios_GM406889139.pdfIn PDF document text
    • https://www.sauvonsleclimat.org/images/free-minecraft-client_GM479516143.pdfIn PDF document text
    • https://www.sauvonsleclimat.org/images/free-bling-bling-card-coin-master_GM406889139.pdfIn PDF document text
    • https://www.sauvonsleclimat.org/images/roblox-speed-hack_GM431946152.pdfIn PDF document text
    • https://www.sauvonsleclimat.org/images/roblox-hack-download_GM431946152.pdfIn PDF document text
    • https://www.sauvonsleclimat.org/images/coin-master-100-spin_GM406889139.pdfIn PDF document text
    • https://www.sauvonsleclimat.org/images/coin-master-twitter_GM406889139.pdfIn PDF document text
    • https://www.sauvonsleclimat.org/images/free-robux-no-survey-or-human-verification_GM431946152.pdfIn PDF document text
    • https://www.sauvonsleclimat.org/images/get-me-free-robux_GM431946152.pdfIn PDF document text
    • https://www.sauvonsleclimat.org/images/minecraft-gun-games-free_GM479516143.pdfIn PDF document text
    • https://www.sauvonsleclimat.org/images/free-robux-website_GM431946152.pdfIn PDF document text
    • https://www.sauvonsleclimat.org/images/free-robux-no-verification-2021-ios_GM431946152.pdfIn PDF document text
    • https://www.sauvonsleclimat.org/images/game-give-free-robux_GM431946152.pdfIn PDF document text
    • https://www.sauvonsleclimat.org/images/free-coin-master-links_GM406889139.pdfIn PDF document text
    • https://www.sauvonsleclimat.org/images/coin-master-free-spons-apk-2021_GM406889139.pdfIn PDF document text
    • https://www.sauvonsleclimat.org/images/coin-master-fan-page_GM406889139.pdfIn PDF document text
    • https://www.sauvonsleclimat.org/images/coin-master-free-spins-link-today-blogspot_GM406889139.pdfIn PDF document text
    • https://www.sauvonsleclimat.org/images/how-to-get-minecraft-coins-for-free_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
stream_003_off00004856.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4856 23856 bytes
SHA-256: b5e0a2b004d68f52d3c386ad5e111d6cdba013167ff9aea413a4a2b18ceadb6f
font_01_sfnt_off00007eb9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7EB9 18752 bytes
SHA-256: 9894c068b10d635aa02e8d25afb59d141e90fd875449b50e52c6a3fbfc43112a

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