PDF static analysis report

Static analysis result for SHA-256 918ddfe690b43dab…

SUSPICIOUS

PDF

36.8 KB Created: 2021-05-13 23:43:12 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-18
MD5: ef4c3f59984b7d5f8b78d5645b3ffa27 SHA-1: a98f0cfa13f457e5703b26d9e8374e2eaa4ecda0 SHA-256: 918ddfe690b43dab32658eac123a8aecd0c5bd1c0dc3e07c6b8b85264c72b4eb
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/479516143/minecraft-book-collection-game-hack PDF link annotation
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00003609.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3609 25040 bytes
SHA-256: 671fadecc1c8152f23c2c4784b931e68259df2e08f7fd71c0a6fe2aeaf79bf3c
font_01_sfnt_off00006f21.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6F21 18168 bytes
SHA-256: 399702d0ee70d7721e3b7d87823dce0b35203047caa5258f7323b07e9fdc19b4