Malicious PDF — malware analysis report

Static analysis result for SHA-256 761604382a3da384…

MALICIOUS

PDF

43.2 KB Created: 2021-05-22 23:38:26 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 174fbc86a2c26ca355fb2b7e7fd8c6fc SHA-1: 221602147392840147f3596e7b50b6b40872103e SHA-256: 761604382a3da3848fe986cd16704f31010459b99ea6e01334ffdc0e544e308c
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 0.7429

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-promo-codes-game-hack PDF link annotation
    • http://somvisio.es/images/how-to-hack-roblox-accounts-for-robux_GM431946152.pdfIn PDF document text
    • http://somvisio.es/images/get-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://somvisio.es/images/coin-master-spin-hack-pc_GM406889139.pdfIn PDF document text
    • http://somvisio.es/images/how-to-get-infinite-robux_GM431946152.pdfIn PDF document text
    • http://somvisio.es/images/how-to-get-free-robux-on-pc_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_off000034d6.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x34D6 29204 bytes
SHA-256: ac74c016fcfe27f43e8d79e4ecd51d5731f7343cac84ea6ae315acbc6cff934b
font_01_sfnt_off00007a5e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7A5E 5596 bytes
SHA-256: 9a13c2580265a78e8a7257496a31ee0055738af7e20a5661c2902efe4bf05ce5
font_02_sfnt_off00008706.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8706 18604 bytes
SHA-256: 81df952e11a915931eb8909d89f5eda5fa0aae9cee1bf8eea3735c5794fb3fb4

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