Malicious PDF — malware analysis report

Static analysis result for SHA-256 74a4569c7c31fc89…

MALICIOUS

PDF

46.6 KB Created: 2021-05-10 17:47:16 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 4c7b584d738fa77b0219dc8520426ec8 SHA-1: d5e9ed1991569ca9a0b9415ae3172c008f74ba1f SHA-256: 74a4569c7c31fc89bab28d5ab5a2ad10dce01e3d8455918ffdd1b33d20fbbac6
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 0.8960

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-free-spins-cheat-deutsch-game-hack PDF link annotation
    • http://modenese.net/images/roblox-avatar-maker-free_GM431946152.pdfIn PDF document text
    • http://modenese.net/images/free-minecraft-skins_GM479516143.pdfIn PDF document text
    • http://modenese.net/images/robux-free-gift-card_GM431946152.pdfIn PDF document text
    • http://modenese.net/images/rbx-gg-free-robux_GM431946152.pdfIn PDF document text
    • http://modenese.net/images/free-2021-robux_GM431946152.pdfIn PDF document text
    • http://modenese.net/images/apps-for-free-robux_GM431946152.pdfIn PDF document text
    • http://modenese.net/images/minecraft-hacked-client-download_GM479516143.pdfIn PDF document text
    • http://modenese.net/images/free-robux-offers_GM431946152.pdfIn PDF document text
    • http://modenese.net/images/adopt-me-roblox-hacks_GM431946152.pdfIn PDF document text
    • http://modenese.net/images/hack-coin-master-spin-apk_GM406889139.pdfIn PDF document text
    • http://modenese.net/images/roblox-free-bundles_GM431946152.pdfIn PDF document text
    • http://modenese.net/images/free-spins-link-in-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://modenese.net/images/coin-master-free-spins-only_GM406889139.pdfIn PDF document text
    • http://modenese.net/images/how-to-get-free-premium-roblox_GM431946152.pdfIn PDF document text
    • http://modenese.net/images/www-roblox-robux_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off000041c4.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x41C4 25208 bytes
SHA-256: 173664f772ea8c4a6362270e8a72d1a4cb864a7b1dc3d941091b97fa39d2388f
font_01_sfnt_off00007c0f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7C0F 4028 bytes
SHA-256: a17c2a746d49ac23b23e38a371e32fddecfcd91b10cf42ff6155bff6b8a07e91
font_02_sfnt_off000089b0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x89B0 2788 bytes
SHA-256: 6fd7c7f447d66842f81aa8cf197935b17f22157d0c7e9f95622df1b5b4ddf530
font_03_sfnt_off000093a0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x93A0 18360 bytes
SHA-256: 29c800506a03a3e1cb5f7ed9e4ca185df1ecbea4e67b5de69ba2e14adc8da31f

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