Malicious PDF — malware analysis report

Static analysis result for SHA-256 f4c32fb458911727…

MALICIOUS

PDF

36.6 KB Created: 2021-05-14 03:01:45 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: 073dec2a9d8f86bd0d8f091d98d5d5b9 SHA-1: c8a889438b493fcf4618fdda9c83da0e7f4a3390 SHA-256: f4c32fb4589117274ae5f0cf242c33d1a6ed4b5289e63567055179665702e3f8
130 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure related to Minecraft server hosting and game hacks, directing users to a known malicious redirector URL. This indicates a phishing or social engineering attempt to trick users into visiting potentially harmful sites. No scripts were extracted, but the embedded URL is the primary indicator of malicious intent.

Machine Learning

  • Nyx PDF Classifier clean score 0.0312

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/479516143/best-free-minecraft-server-hosting-reddit-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_off000036c5.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x36C5 24252 bytes
SHA-256: 68fc3bca777294b079978e35e5a755b9240a7878270eb3cec0d09c28db8c2eeb
font_01_sfnt_off00006cf4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6CF4 18504 bytes
SHA-256: d871dcb748a79589dfb9206c8c26b1b31a59c6b5fd6e64801d8efc9cfdffb698