Malicious PDF — malware analysis report

Static analysis result for SHA-256 0e3f80a1945273de…

MALICIOUS

PDF

41.1 KB Created: 2021-05-13 17:02:49 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-08-25
MD5: 1a349ecc87efc0b846a20857c9656bd7 SHA-1: 71b36e7851df47f05c9e9db5beb670eea2be7307 SHA-256: 0e3f80a1945273deda0c577402cbf328cb33cbb5ab2df14075214f0afcfb7249
130 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links pointing to known malicious redirector infrastructure, specifically designed to lure users with promises of game hacks or generators. The document body includes phrases like 'CLICK HERE TO ACCESS ROBLOX GENERATOR', reinforcing the deceptive nature of the lure. The embedded URLs are the primary indicators of malicious activity, suggesting a phishing or scam attempt.

Machine Learning

  • Nyx PDF Classifier clean score 0.0223

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/robux-game-com-game-hack In PDF document text
    • https://www.interfaceventos.com.br/imagens/files/how-to-get-free-hair-on-roblox_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000354f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x354F 27864 bytes
SHA-256: ae78e6a25255ccd5f32d60c8a265ecad756964e449ed9783cda2e939e7e922ee
font_01_sfnt_off0000750f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x750F 2840 bytes
SHA-256: 3fb127b764b9d10f5525bc4de5ec8316de704409ccb0cf21cff3ad8a30d11676
font_02_sfnt_off00007ec1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7EC1 18340 bytes
SHA-256: c3384937c05d12942e5ee2f32f048a43efe3336dc3e7ac7a8d2adf4ff389f548

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