Malicious PDF — malware analysis report

Static analysis result for SHA-256 4e249940564dcd3c…

MALICIOUS

PDF

35.0 KB Created: 2021-05-30 02:17:18 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 816d41e9afb2c5f5f1c1bd5397855db0 SHA-1: 72db466591599fc1f298f5bd220293664cae897a SHA-256: 4e249940564dcd3cc5c7bcf7fc6c081015e5f6b3c918cae8690cc0640c7862a2
170 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution T1534 Steal or Modify Data

The PDF document contains multiple links that redirect to malicious infrastructure, specifically a site impersonating Apple to phish for user credentials. The document body and heuristics indicate a lure for a 'free generator' or 'game hack' which leads to a credential phishing attempt. The embedded links and the nature of the lure strongly suggest a phishing attack, likely delivered as an attachment.

Machine Learning

  • Nyx PDF Classifier clean score 0.0910

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/free-minecraft-account-generator-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/free-minecraft-account-generator-game-hack In PDF document text
    • https://alkassab.com.sa/wp-content/uploads/fsqm-files/minecraft-free-online_GM479516143.pdfIn 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_002_off00002f0b.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2F0B 25848 bytes
SHA-256: e964c2679a284390d0e3cbc283b8bcd54063aed8839f319720f34ef972b658c0
font_01_sfnt_off000068f3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x68F3 17848 bytes
SHA-256: ac3b0f7a72dc6f29c3b7fbd43af928bb412d301226b2a88e16f0d2541e2fb97b

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