Malicious PDF — malware analysis report

Static analysis result for SHA-256 88262cf7ead02ad2…

MALICIOUS

PDF

30.3 KB Created: 2021-07-20 19:32:28 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: b718b3d5e147d8c4ed898c536a99cadb SHA-1: d448b28cfb255f3b4025d4b9a6a51396ee48dc5d SHA-256: 88262cf7ead02ad2695ce49a31a9c600e155fc0230d3abeaf599d301f2620111
130 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF contains a critical heuristic firing for a game hack redirector lure, pointing to malicious infrastructure. The document body also contains a call-to-action phrase and the malicious URL. While no scripts were extracted, the presence of a malicious redirector suggests an attempt to deliver a second-stage payload, likely through a user-initiated click.

Machine Learning

  • Nyx PDF Classifier clean score 0.0560

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/479516143/minecraft-name-tag-hacks-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_off00002416.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2416 22188 bytes
SHA-256: ae59716d10a09729284265507f61920365fa2ea844b8ae628dd8902ad88a63a0
font_01_sfnt_off00005546.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5546 18288 bytes
SHA-256: eb7ed4260d6d64c3cd9f3242d6af3157cea31df7eff6e4be90ec8e6c005c47d1

Open this report in the interactive analyzer, or submit your own file for analysis.