Malicious PDF — malware analysis report

Static analysis result for SHA-256 b3ff7d0c6aec5092…

MALICIOUS

PDF

36.1 KB Created: 2021-05-24 09:01:24 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-16
MD5: 284c0a87b2d897c865fa19521f7c9cdb SHA-1: c5b6e0703b69c1ff25d240b28314a19f5c0a5c31 SHA-256: b3ff7d0c6aec5092e638990d129d6ff866e03c128a070cd8e28c209d6a558f90
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious File

The PDF document contains a lure for a Minecraft hack, impersonating Microsoft and directing users to download a file from a suspicious URL. The ML classifier strongly flagged this PDF as malicious, and the presence of a call-to-action button further supports a phishing or scam attempt. The embedded URLs are likely intended to host or redirect to malicious payloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9492

Heuristics 4

  • 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/how-to-get-minecraft-pocket-edition-for-free-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
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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/how-to-get-minecraft-pocket-edition-for-free-game-hack PDF link annotation
    • http://ascom4.com/images/john-doe-roblox-hacker_GM431946152.pdfIn PDF document text
    • http://ascom4.com/images/get-free-robux-today_GM431946152.pdfIn PDF document text
    • http://ascom4.com/images/free-minecraft-java-server_GM479516143.pdfIn PDF document text
    • http://ascom4.com/images/how-to-hack-someones-roblox-account_GM431946152.pdfIn PDF document text
    • http://ascom4.com/images/roblox-com-free-robux_GM431946152.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000034a3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x34A3 24340 bytes
SHA-256: 6655f2b10b74946f89794719bd0d3e8f342f4eaa6f7dc081eb97f56e2afc6de3
font_01_sfnt_off00006b71.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6B71 18372 bytes
SHA-256: 48146c158bc763bc875505d5b271c3d9491fcf22091c9e02863bb81ec9b852cb

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