Malicious PDF — malware analysis report

Static analysis result for SHA-256 6e2fa081ddc45964…

MALICIOUS

PDF

37.2 KB Created: 2021-05-20 13:04:39 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: d97d7fc26c68a4bf1730d8b792ab4672 SHA-1: 609b48986cf8d3e2ff9b0f4cc4655d773b1b70d9 SHA-256: 6e2fa081ddc45964eabc0b30156ebe18245ce5dc6a1c61337cc67c4dd473d9bd
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a lure for a game hack, directing users to a URL that likely hosts a malicious payload or further phishing content. The ML classifier also flagged this PDF as malicious. No scripts were extracted, but the embedded URLs are the primary indicators of malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9447

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/479516143/minecraft-pocket-edition-mods-for-free-game-hack PDF link annotation
    • https://opac.pasca.isi.ac.id/repository/coin-master-hack-mod-apk-download_GM406889139.pdfIn PDF document text
    • https://opac.pasca.isi.ac.id/repository/300-daily-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://opac.pasca.isi.ac.id/repository/free-robux-no-verification-no-download_GM431946152.pdfIn PDF document text
    • https://opac.pasca.isi.ac.id/repository/coin-master-free-link_GM406889139.pdfIn PDF document text
    • https://opac.pasca.isi.ac.id/repository/coin-master-hack-blog_GM406889139.pdfIn PDF document text
    • https://www.youtIn 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_off00003666.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3666 25788 bytes
SHA-256: 6cf45a20386b592ff740afd633814baf5386aaa0397c4d8bfb3f886812b3ec1f
font_01_sfnt_off00007089.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7089 18208 bytes
SHA-256: 52725ebef45a42bab5f52f4296d4c65b292dd882fbab5616e23215bf8ac92a4c

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