Malicious PDF — malware analysis report

Static analysis result for SHA-256 6f42d36ab8ec0eff…

MALICIOUS

PDF

38.8 KB Created: 2021-05-22 03:05:59 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 9ac05c4bd31e300447fe5f620001ca6e SHA-1: 6b91105fabf7b1ab5a85c2b155879d8956251165 SHA-256: 6f42d36ab8ec0effdebc80c0a8147733066e24ee9c094ce81915613821ce8afa
160 Risk Score

Malware Insights

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

The PDF contains multiple links to known malicious redirectors, specifically promoting 'free generators' and 'game hacks'. The document body and heuristics indicate a lure to download or access these resources, likely leading to further malicious content or exploits. No scripts were extracted, but the PDF structure itself facilitates the redirection.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8060

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/free-coin-master-spins-blog-game-hack In PDF document text
    • https://www.drsertac.net/upload/content/files/roblox36com-free-robux_GM431946152.pdfIn PDF document text
    • https://www.drsertac.net/upload/content/files/instantrobux_GM431946152.pdfIn PDF document text
    • https://www.drsertac.net/upload/content/files/mcpe-client_GM479516143.pdfIn PDF document text
    • https://www.drsertac.net/upload/content/files/give-me-free-robux_GM431946152.pdfIn PDF document text
    • https://www.drsertac.net/upload/content/files/coin-master-hack-spin-generator-tool_GM406889139.pdfIn 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_002_off00003312.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3312 24340 bytes
SHA-256: e8c7d89c4e2e1e844d93aaf540038f2f2685dfbd43b7c9018d9ead17580944e0
font_01_sfnt_off00006aa5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6AA5 3124 bytes
SHA-256: 9967c6221325a4ff3f7c4336922605f990450164c2eee2df708cc81823c6ec98
font_02_sfnt_off00007584.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7584 18464 bytes
SHA-256: a2c76306a813766f02d16bba13a6176cc917de49c90529db8e6e2ffa1e8149db

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