Malicious PDF — malware analysis report

Static analysis result for SHA-256 9ddfe4cea9d0e75b…

MALICIOUS

PDF

27.4 KB Created: 2021-06-30 05:42:00 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: a053ff3b537cab6fc58278a7dfac05ce SHA-1: c8b854fd316ac97a5b7e57b2a9ae758609ec43bc SHA-256: 9ddfe4cea9d0e75b928efa1ea56d10b61c72d769e80a3c4cd22a2ecb8dfd8937
130 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains multiple heuristics indicating it is a lure for a 'free generator / game hack'. It embeds a URL that points to a known malicious redirector, which is likely intended to lead the user to a scam or malware download. The document body text reinforces this by mentioning 'Free Robux Hack' and a 'CLICK HERE TO ACCESS ROBUX GENERATOR'.

Machine Learning

  • Nyx PDF Classifier clean score 0.0522

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 http://netcdn.co/app/431946152/free-robux-hack-no-verification-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
font_00_sfnt_off00001619.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1619 22080 bytes
SHA-256: 0d92c5a6e4f000ee83267b474ecd7242aad0b5f415f340b9f6fe963289c6feba
font_01_sfnt_off000046a3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x46A3 19244 bytes
SHA-256: 96540bd7c84d60e769713d590412c745bf113fce47b0f54684cca50d2dde6ca8

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