Malicious PDF — malware analysis report

Static analysis result for SHA-256 3279c7be1a708d93…

MALICIOUS

PDF

45.9 KB Created: 2021-05-13 18:06:32 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: ad9a674131649ac15b85fc74780c0cea SHA-1: aafb956f1081f94e7e1ead11b3b787ca27554613 SHA-256: 3279c7be1a708d93467fd23168592458a4806bba778fa556570893d24ff2a269
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains lures for advance-fee scams and visual download buttons, indicating a malicious intent to trick users. It embeds multiple URLs that likely lead to further malicious content or phishing pages, such as the primary URL found in the document body. The ML classifier also flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8484

Heuristics 5

  • Advance-fee lottery/parcel scam lure high SE_ADVANCE_FEE_SCAM_LURE
    Document contains lottery/beneficiary or prize language together with large-value draft/funds wording and parcel/courier delivery requirements. This is a classic advance-fee fraud document shape.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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/431946152/how-to-get-free-robux-without-doing-anything-game-hack
    • http://pastoraldapessoaidosa.org.br/images/free-robux-without-downloading-apps_GM431946152.pdf
    • http://pastoraldapessoaidosa.org.br/images/games-on-roblox-that-give-you-free-robux_GM431946152.pdf
    • http://pastoraldapessoaidosa.org.br/images/free-robux-hacker-us_GM431946152.pdf
    • http://pastoraldapessoaidosa.org.br/images/how-to-hack-roblox-games_GM431946152.pdf
    • http://pastoraldapessoaidosa.org.br/images/free-coins-coin-master-no-human-verification_GM406889139.pdf
    • http://pastoraldapessoaidosa.org.br/images/blogspot-coin-master-free-spins_GM406889139.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00003e79.bin
b1638fdb1049c3e09306b77274ae3f69ae9df83b43c9a4465e847937db050f37		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3E79 28776 bytes
font_01_sfnt_off000080fc.bin
885102689e5ec3972a09761381270a7fb302f772ec5935020d8d48e2508cff2a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x80FC 4120 bytes
font_02_sfnt_off00008e8a.bin
843e7c6de0628ecb74dfde19cdfb212261a67f0d6d996bc16e2547f6c0bce3d3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8E8A 19400 bytes

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