Malicious PDF — malware analysis report

Static analysis result for SHA-256 6e94278ad832d164…

MALICIOUS

PDF

37.1 KB Created: 2021-05-16 05:03:23 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-07
MD5: dd861bbf3808733fa92fab148322e3d8 SHA-1: 8a4bfe6965fab234ddd7cd79ff1b3ef8db70c901 SHA-256: 6e94278ad832d164ac3665629f4a8e6cace87229bb514d74a93153bf12b8e606
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure for 'Free Robux Download' and a call-to-action button, directing users to a malicious URL. The ML classifier also flagged this PDF as malicious. The embedded URLs likely lead to a phishing or malware distribution site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9018

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/free-robux-download-game-hack PDF link annotation
    • https://www.stmik-time.ac.id/perpustakaan/repository/how-to-get-free-robux-easy-hack_GM431946152.pdfIn PDF document text
    • https://stmik-time.ac.id/perpustakaan/repository/how-to-get-free-robux-easy-hack_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
stream_003_off0000321e.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x321E 25968 bytes
SHA-256: 535ef6a6487a8e28497c6940e81f3f3512d87fd7eaba24053fd5011359e4012d
font_01_sfnt_off00006df4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6DF4 18824 bytes
SHA-256: 8406cb1c38774726d91b6a9fb5333918f35ff34bd7dcb56cd5a50b6af28a82ee

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