Malicious PDF — malware analysis report

Static analysis result for SHA-256 ef6efe8b79c14b92…

MALICIOUS

PDF

38.4 KB Created: 2021-05-22 11:07:08 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 88cc3ebfc32565c887ebd17286e661bf SHA-1: c9fe080ada1557d592960fcaa1801a85ba02cbae SHA-256: ef6efe8b79c14b9270283b8d1bf1d00620bb5232a62b1e605cae34bc7025cf29
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7268

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/835599320/tiktok-viewer-free-game-hack PDF link annotation
    • http://glll.de/images/how-to-download-minecraft-for-free-on-iphone_GM479516143.pdfIn PDF document text
    • http://glll.de/images/mcmaster-club-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://glll.de/images/minecraft-free-download_GM479516143.pdfIn PDF document text
    • http://glll.de/images/free-robux-instantly_GM431946152.pdfIn PDF document text
    • http://glll.de/images/how-to-hack-roblox-accounts-2021_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off00003215.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3215 24864 bytes
SHA-256: 7d3deca546d7913e1efe6b1e7a8727c679164431e7ff3c510817969042e6db2b
font_01_sfnt_off00006b6c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6B6C 3056 bytes
SHA-256: 0432d15cacd13b5a5bf0bf04f3d71617a106c5603bf9a3bf3700862b55413bdd
font_02_sfnt_off000075e3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x75E3 17752 bytes
SHA-256: 03cae80738042903ed7303e5923c2b1ca7393d04b72c6adefe1e53c55c9a8aab

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