Malicious PDF — malware analysis report

Static analysis result for SHA-256 794ae618e1f87558…

MALICIOUS

PDF

29.0 KB Created: 2021-07-19 19:43:12 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 64600cdeffe02ca03d523fc56004cf6c SHA-1: bcf81eac9a13fa80e2bf026fe0d8367b6be8298e SHA-256: 794ae618e1f8755803cbdcde7954dc1fffe3353de37e8787b4ab4978ab113d86
130 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure for game hacks and free generators, directing users to a malicious URL. This URL is flagged as a known malicious redirector, indicating a phishing or malware distribution attempt. The embedded artifacts and document structure are consistent with malicious PDF lures.

Machine Learning

  • Nyx PDF Classifier clean score 0.0570

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 http://netcdn.tw/app/431946152/roblox-hack-client-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_off00001c3d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1C3D 22440 bytes
SHA-256: a856796e4e161559ef0a713706b29cc5de5b5cb32a399c0e9ff52b6228894136
font_01_sfnt_off00004e7b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4E7B 18592 bytes
SHA-256: 9b1a4ebf879a07bf8de669c3d2a62a283ca76e3a96f19070a05b062fb78a4c3a

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