Malicious PDF — malware analysis report

Static analysis result for SHA-256 950d4fefc539ed8e…

MALICIOUS

PDF

37.7 KB Created: 2021-05-25 06:30:56 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: bef388530d347ad440eda7195414391e SHA-1: a2e180427cc525f58a7f648419ccbadaae9f00f5 SHA-256: 950d4fefc539ed8eb368932589d760b589c1a11f7bcd0155ae40721d4566bffa
130 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains embedded links that redirect to a known malicious domain, masquerading as a generator for free accounts and game hacks. The document body text and heuristic firings confirm the use of a lure to entice users to click on these malicious links, which likely leads to further compromise. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier clean score 0.0076

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/835599320/free-disney-plus-accounts-tiktok-game-hack In PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off00002cd8.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2CD8 25640 bytes
SHA-256: bbadc68c38504775d7d8ace948cc3cff522a29351490c27689e63fd367f060e5
font_01_sfnt_off00006744.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6744 3284 bytes
SHA-256: ef8868779e8bd301c045a22e5c345cdda85194034059658d3e163037b7ababf2
font_02_sfnt_off00007292.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7292 18172 bytes
SHA-256: ba50685ceba17d4ba1c641928124270d48c75427ecdbd185af6a9cd45188b0b8

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