Malicious PDF — malware analysis report

Static analysis result for SHA-256 5e09a9648db044d7…

MALICIOUS

PDF

28.8 KB Created: 2021-06-04 03:48:47 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-16
MD5: f189d2daede168f502fff805e3c947a4 SHA-1: 2f3183685329b3324d73711bb2d5513188535960 SHA-256: 5e09a9648db044d7867d65214e54e6a79aa38d931118b94542b2891fb87299d7
130 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains a critical heuristic firing for a game hack redirector lure, pointing to a malicious URL. The document body also contains text related to 'Roblox Hackers List' and a 'CLICK HERE TO ACCESS ROBLOX GENERATOR' call to action, reinforcing the lure. The embedded URL is associated with known malicious redirector infrastructure, indicating a phishing or scam attempt.

Machine Learning

  • Nyx PDF Classifier clean score 0.0373

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.online/app/431946152/roblox-hackers-list-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_off00001bcd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1BCD 23108 bytes
SHA-256: 1325f5c0195884853faf6ebe81bfc4c3a983070abe16c716112ee9b93e513797
font_01_sfnt_off00004fb1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4FB1 17968 bytes
SHA-256: a46e9bcee8e4bcc0d558debc155667206926e6de113e061943705ea28a6fbd5b

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