Malicious PDF — malware analysis report

Static analysis result for SHA-256 55e7d01af20476ef…

MALICIOUS

PDF

37.1 KB Created: 2021-05-23 20:07:48 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 1b8e625b01386d6441d6594fd7097f5e SHA-1: 73d7b4d546af264931c4df3c847a5b8d10d63da5 SHA-256: 55e7d01af20476efc86dbff38bd2561253c08e846ad5e980fe243cb1c836e304
200 Risk Score

Malware Insights

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

The PDF document contains multiple links that redirect to malicious infrastructure, masquerading as a 'free generator' or 'game hack' to trick users. It impersonates the Microsoft brand to enhance the phishing lure. The embedded links are designed to lead users to potentially harmful content or further malicious downloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9447

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-modded-minecraft-server-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-modded-minecraft-server-game-hack In PDF document text
    • https://marielyst-grundejerforening.dk/images/robux-generator-without-verification_GM431946152.pdfIn PDF document text
    • https://marielyst-grundejerforening.dk/images/roblox-com-www_GM431946152.pdfIn PDF document text
    • https://marielyst-grundejerforening.dk/images/earn-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • https://marielyst-grundejerforening.dk/images/minecraft-free-download-unblocked_GM479516143.pdfIn PDF document text
    • https://marielyst-grundejerforening.dk/images/public-enemy-sun-prairie-coin-master-free-spins_GM406889139.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
font_00_sfnt_off0000347c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x347C 26164 bytes
SHA-256: 897c1499eeaabd9797d43a89aeb8b51f41914577b5f2fdc3186f095eb31a307d
font_01_sfnt_off00007082.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7082 18000 bytes
SHA-256: 088756902f929cbb0d1c0fa5d7f6f3d7dd891fd3cb3329064cb278e0751f8302