Malicious PDF — malware analysis report

Static analysis result for SHA-256 088b9b3b594436d5…

MALICIOUS

PDF

37.0 KB Created: 2021-05-25 08:31:44 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: ec125a0f5ae9588b99a9fb5e6af4a0ef SHA-1: b465596dcff0a9fc9a06567e455a10e8e3fa9141 SHA-256: 088b9b3b594436d5b85d64664ecafdc81d988d3c9f43ef6aa9c66291f9a02036
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links, with a primary focus on a 'free generator / game hack' lure for Robux. This suggests a phishing or scam attempt designed to redirect users to potentially malicious websites. While no scripts were explicitly extracted, the PDF structure and embedded URLs strongly indicate a social engineering tactic to trick users into visiting a compromised or malicious domain.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9447

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector high 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.
  • 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/431946152/how-to-get-free-robux-easy-game-hack PDF link annotation
    • https://www.e-learningmin10jakarta.com/__statics/gudangsoal/files/best-site-for-free-coin-master-free-spin-link_GM406889139.pdfIn PDF document text
    • https://www.e-learningmin10jakarta.com/__statics/gudangsoal/files/mine-minecraft-games-for-free_GM479516143.pdfIn PDF document text
    • https://www.e-learningmin10jakarta.com/__statics/gudangsoal/files/i-want-free-robux_GM431946152.pdfIn PDF document text
    • https://www.e-learningmin10jakarta.com/__statics/gudangsoal/files/roblox-com-free-robux_GM431946152.pdfIn PDF document text
    • https://e-learningmin10jakarta.com/__statics/gudangsoal/files/coin-master-free-spins-ios_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_off00003369.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3369 25956 bytes
SHA-256: 9d284b44fe54d4514171a0e44bda1c65b7e375dbdef4fe6f3920b5784264f122
font_01_sfnt_off00006e14.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E14 18688 bytes
SHA-256: afa93f6b5b78c11c56913a3e0021d293f85f1b4278f41e2b8713ad9a89f051de

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