PDF static analysis report

Static analysis result for SHA-256 a4991de3a40d1db2…

SUSPICIOUS

PDF

37.5 KB Created: 2021-05-10 11:51:02 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-02
MD5: 08d2e328f5b3317be9c94367cb3ad22b SHA-1: 30e47b7799a0f10d0f2aa0af0accc15be3129381 SHA-256: a4991de3a40d1db2d8b4b743f5af371cac49cc4394c87dee7a8bb0cf85a8a36e
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 0.0334

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/how-to-get-free-clothes-on-roblox-2021-game-hack PDF link annotation
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 4

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

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off000032a3.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x32A3 27216 bytes
SHA-256: 45e890afba2b5f6b8aa1b0638803e581588d64491dd02387aed2e12e276e4419
font_01_sfnt_off00006f93.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6F93 18784 bytes
SHA-256: 3c41f18d23af06dd255ad2765babc942943b8f7b2ccda7aca72567751bee4f94

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