Malicious PDF — malware analysis report

Static analysis result for SHA-256 cba01d588c9428e9…

MALICIOUS

PDF

39.5 KB Created: 2021-05-23 02:47:22 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 533a9fe74d574498e736f59811bddd8c SHA-1: c0349eda8efefdce22b648b15a68a0cef3a37f72 SHA-256: cba01d588c9428e90d44d3d809fc8b66457d157cbc7133f0d35a435b9ef54e6f
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to external websites, including one identified as a malicious redirector for a 'coin master game hack'. The document body and heuristics indicate a lure to download or access a generator, likely leading to malware. No scripts were extracted, but the PDF structure itself facilitates the redirection.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8060

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/406889139/coin-master-daily-free-spins-game-hack In PDF document text
    • http://www.peterbarsony.com/userfiles/files/how-to-get-free-tiktok-followers-no-human-verification_GM835599320.pdfIn PDF document text
    • http://www.peterbarsony.com/userfiles/files/coin-master-32-hack-apk-download_GM406889139.pdfIn PDF document text
    • http://www.peterbarsony.com/userfiles/files/coin-master-daily-free-spins-and-coins_GM406889139.pdfIn PDF document text
    • http://www.peterbarsony.com/userfiles/files/daily-coin-master-free-spin-apk_GM406889139.pdfIn PDF document text
    • http://www.peterbarsony.com/userfiles/files/free-robux-websites-that-actually-work_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
stream_002_off0000324d.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x324D 26440 bytes
SHA-256: 1cc33e86d0fec2bfbbdb88960c4c0bed0ce4ff2bd4e685de14c4243aede957b6
font_01_sfnt_off00006f23.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6F23 2840 bytes
SHA-256: 3fb127b764b9d10f5525bc4de5ec8316de704409ccb0cf21cff3ad8a30d11676
font_02_sfnt_off000078d4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x78D4 18308 bytes
SHA-256: e42bde5f0ce420544e36e42831a39ceefa2103814e02a0c87b67b282abd28734

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