Malicious PDF — malware analysis report

Static analysis result for SHA-256 e7ba40c3cfcaa003…

MALICIOUS

PDF

37.3 KB Created: 2021-05-18 03:35:38 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 99212a2a69bf89ff3f73343b51ff70b4 SHA-1: d05e69decc0a5624db529b106bb9665e8d1f8668 SHA-256: e7ba40c3cfcaa003339b032e651ab02ea276237361f516d4a099761af6e17375
130 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains embedded links that redirect to known malicious infrastructure, specifically advertising a 'free generator / game hack'. The document body also contains text and links related to this lure. While no scripts were extracted, the presence of malicious redirector links strongly suggests an attempt to lead the user to a phishing or malware download site.

Machine Learning

  • Nyx PDF Classifier clean score 0.0334

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/431946152/free-robux-working-game-hack In 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_003_off00003291.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3291 25888 bytes
SHA-256: c8488c4865ad8e2abb8290da7a0c25ea2bf5369fabbfa72237365da2cf9cac8b
font_01_sfnt_off00006f27.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6F27 18788 bytes
SHA-256: 146362cb081aa7c6718ebc51132ca2538876dc1922f8d33668898621d3d02efe

Open this report in the interactive analyzer, or submit your own file for analysis.