Malicious PDF — malware analysis report

Static analysis result for SHA-256 629f9f818e2d0b59…

MALICIOUS

PDF

40.6 KB Created: 2021-05-15 05:13:56 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 47ab2c2f3cf9020d3afa1fd3ff11dbaf SHA-1: e11524e0452e9be9c8058c8471091cd166dcfc4f SHA-256: 629f9f818e2d0b59fb7a8b2942849ecc80322d5f9a1ca09ea2fabcfe7b30157c
130 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a critical heuristic firing for a game hack redirect lure, pointing to a malicious URL. This URL is presented as a call-to-action within the document body, suggesting an attempt to trick the user into visiting a site that likely hosts a malicious payload. No scripts were extracted, but the embedded URL is the primary indicator of malicious intent.

Machine Learning

  • Nyx PDF Classifier clean score 0.0128

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/406889139/how-do-i-get-free-spins-on-coin-master-game-hack In PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00003555.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3555 27192 bytes
SHA-256: e54588b1756e5736b83d85cce5f07438d188bf7f8f5decaba534c74fa5d468a1
font_01_sfnt_off000073cb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x73CB 2812 bytes
SHA-256: fc92a80cefddbcc51cb4ecd7284aa73b746cbd66adcf1d96110f0323ec06b51f
font_02_sfnt_off00007d6c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7D6C 18216 bytes
SHA-256: 7b3dc5054b0587ec41e602859ac4e59ac97ec46c9406b1b4182074b4d7a08153

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