Malicious PDF — malware analysis report

Static analysis result for SHA-256 667e12e072cbc395…

MALICIOUS

PDF

37.2 KB Created: 2021-05-24 08:53:38 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-25
MD5: d88d2f9722dc2e121a9c1d7b2a71596c SHA-1: 622207bd53536ab2cd9c0008946431319789c1ae SHA-256: 667e12e072cbc395654d4d36a8b4d6c99203234909e2d1c9dfb67b3eefc1fdf3
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF contains multiple links that redirect to malicious infrastructure, specifically advertising game hacks and generators. The primary lure URL is 'https://netcdn.xyz/app/431946152/roblox-hack-download-game-hack', which is associated with a game hack download. The document body and heuristics indicate a lure to download a 'Roblox Hack', suggesting a social engineering tactic to trick users into downloading potentially malicious files.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9447

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector critical 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. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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
  • 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/roblox-hack-download-game-hack In PDF document text
    • http://petrorang.com/admin-panel/products/images/files/minecraft-anarchy-server-no-hacks_GM479516143.pdfIn PDF document text
    • http://petrorang.com/admin-panel/products/images/files/how-do-you-hack-roblox_GM431946152.pdfIn PDF document text
    • http://petrorang.com/admin-panel/products/images/files/hack-coin-master-xyz_GM406889139.pdfIn PDF document text
    • http://petrorang.com/admin-panel/products/images/files/minecraft-ps4-free_GM479516143.pdfIn PDF document text
    • http://petrorang.com/admin-panel/products/images/files/coin-master-rewards-app_GM406889139.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_002_off000031af.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x31AF 26764 bytes
SHA-256: c9c80b35e5f065dd7c6c49522d82050a9dba8ef45f44bf50929fdc3f6f8f53d0
font_01_sfnt_off00006ebc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6EBC 18688 bytes
SHA-256: 777ecd9bf4cba19c66ac3b03e370a33bd01ed4cf882c145341853d771ac6f80e

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