PDF static analysis report

Static analysis result for SHA-256 cba9cd4428d304e2…

SUSPICIOUS

PDF

40.0 KB Created: 2021-05-15 10:00:38 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: a8c42cbd39ea30a7a47fd379b68f9b82 SHA-1: df392a5b091723c1f6a11f41d120deca07069dd6 SHA-256: cba9cd4428d304e2738085056bd4fd2a7c08f28ad3a6df0cd29df30d78d0ad0a
52 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as suspicious. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier clean score 0.0128

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/431946152/free-robux-without-verification-or-survey-game-hack PDF link annotation
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off0000355d.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x355D 25116 bytes
SHA-256: a124ed3026c8ae6b9c603ad83deb687c8db2e62be57ade7a13c73b3c6691efa6
font_01_sfnt_off00006e28.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E28 2824 bytes
SHA-256: 94c1b019735d7e491765340abe50b2897410e2ec65ecf141c08bd9f2220897c4
font_02_sfnt_off000077d6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x77D6 19256 bytes
SHA-256: e141b644a4ecfde99000ea6fb335fe57c508717aca49a84e1609c2cc829300c4

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