Malicious PDF — malware analysis report

Static analysis result for SHA-256 e49598f0ca03bf46…

MALICIOUS

PDF

39.9 KB Created: 2021-05-21 10:40:44 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 9eebd031271cb1b83c8fc4071d4236f2 SHA-1: 548f545a897ad5f773206c044b9c9e937e2791f9 SHA-256: e49598f0ca03bf464d50fab9a4223689dbdbcca5a84da5d8d784036cb12a4b48
130 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a lure for 'Free Robux' and a 'game hack', directing users to a malicious URL. This indicates a phishing or scam attempt designed to entice clicks on malicious links. The embedded URL is associated with known malicious redirector infrastructure, suggesting it leads to a malicious payload or further phishing content.

Machine Learning

  • Nyx PDF Classifier clean score 0.0800

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-without-human-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
stream_002_off00002f37.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2F37 30512 bytes
SHA-256: 7d158fc61b75dd0302638aab1e37f8f5b5a5a030b3dd6ffb0b3ffe02575ff556
font_01_sfnt_off00007885.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7885 19224 bytes
SHA-256: 69162c0303826e3a88150cee7b6b12b50ba56e04bc46253c0e5eb9f80ac8a399

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