Malicious PDF — malware analysis report

Static analysis result for SHA-256 19422d94f5ce7e68…

MALICIOUS

PDF

37.1 KB Created: 2021-05-12 08:10:51 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 77ef51af5cfec31cb3b6dcf18914fc36 SHA-1: bd266716ed09d02c9c3804a6196aac43a9fe080f SHA-256: 19422d94f5ce7e688f1f26fc3464f08054aed155005214f3bf1f837fdfeb63f3
170 Risk Score

Malware Insights

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

The PDF document contains a critical heuristic indicating it links to known malicious redirector infrastructure, specifically disguised as a "free generator / game hack" for Minecraft. It impersonates Microsoft, attempting credential phishing. The embedded URL, https://netcdn.xyz/app/479516143/minecraft-book-collection-game-hack, is the primary IOC, leading to this malicious infrastructure.

Machine Learning

  • Nyx PDF Classifier clean score 0.0334

Heuristics 5

  • 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.
  • Brand-impersonation credential phishing lure high SE_BRAND_CREDENTIAL_PHISH
    Document impersonates a well-known consumer brand and uses account-security / verification language ('unusual activity', 'account on hold', 'verify your account') to steer the reader to a credential-harvesting link. Corroborated by: call-to-action link host does not match the impersonated brand: https://netcdn.xyz/app/479516143/minecraft-book-collection-game-hack.
  • 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/479516143/minecraft-book-collection-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_003_off00003628.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3628 25476 bytes
SHA-256: c76673efceb03ad47f760af07392c0726813e86b4b23bcb2e37daa03c33ca57f
font_01_sfnt_off00007054.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7054 18168 bytes
SHA-256: 399702d0ee70d7721e3b7d87823dce0b35203047caa5258f7323b07e9fdc19b4

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