Malicious PDF — malware analysis report

Static analysis result for SHA-256 e70d2b479085fab1…

MALICIOUS

PDF

38.6 KB Created: 2021-05-23 02:12:37 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 83ac3712af2f4a6e4a8321c7b81e9763 SHA-1: 7dc1b5d4d5f7c165dfd675498d163bba0ebec1e6 SHA-256: e70d2b479085fab1f15bcc325f61281de428982f9547aee2b4857ae2d5612d66
130 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a lure for a 'free generator / game hack' that redirects to a known malicious URL. This indicates a phishing attempt to trick users into visiting malicious infrastructure. No scripts were extracted from this sample, but the embedded URL is the primary indicator of malicious intent.

Machine Learning

  • Nyx PDF Classifier clean score 0.0784

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/how-you-get-free-robux-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_off00002c6c.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2C6C 32348 bytes
SHA-256: 044a96a6f213dce086d6e3fa3e0ffc48a2bfae0b2d5df2fe17cba1d440d113f7
font_01_sfnt_off000075be.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x75BE 18444 bytes
SHA-256: d3aeb47c5138bb2f7afdc1cd1986e008461219f841fd4d3ae6acb877e9db5a0e

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