Malicious PDF — malware analysis report

Static analysis result for SHA-256 ea7f769fa93f9348…

MALICIOUS

PDF

40.7 KB Created: 2021-05-11 07:03:15 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: a7bb78a8f2a1cf5b3f9f09284f444ebe SHA-1: 23e7bf2e65ae32f744a3c852dd83aedc1277cda1 SHA-256: ea7f769fa93f9348329618d76764a49d898593691db8e4414a1e953afed74d71
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 0.9971

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/406889139/coin-master-hacks-xyz-game-hack PDF link annotation
    • http://promotion.si/images/como-hackear-el-juego-coin-master-en-espaol_GM406889139.pdfIn PDF document text
    • http://promotion.si/images/roblox-group-free-robux_GM431946152.pdfIn PDF document text
    • http://promotion.si/images/how-to-get-free-stuff-on-roblox-2021_GM431946152.pdfIn PDF document text
    • http://promotion.si/images/roblox-redeem-card-codes-free_GM431946152.pdfIn PDF document text
    • http://promotion.si/images/minecraft-bedrock-download-pc-free_GM479516143.pdfIn PDF document text
    • http://promotion.si/images/coin-master-free-spins-for-today_GM406889139.pdfIn PDF document text
    • http://promotion.si/images/how-to-get-free-robux-codes_GM431946152.pdfIn PDF document text
    • http://promotion.si/images/roblox36com-free-robux_GM431946152.pdfIn PDF document text
    • http://promotion.si/images/aimbot-download-roblox_GM431946152.pdfIn PDF document text
    • http://promotion.si/images/robux-link_GM431946152.pdfIn PDF document text
    • http://promotion.si/images/coin-master-unlimited-coins-hack-apk-download_GM406889139.pdfIn PDF document text
    • http://promotion.si/images/how-to-get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://promotion.si/images/coin-master-free-spins-hack-iphone_GM406889139.pdfIn PDF document text
    • http://promotion.si/images/how-to-get-minecraft-realms-for-free_GM479516143.pdfIn PDF document text
    • http://promotion.si/images/coin-master-free-spins-link-whatsapp-group_GM406889139.pdfIn PDF document text
    • http://promotion.si/images/free-unlimited-coin-master-online-tool_GM406889139.pdfIn PDF document text
    • http://promotion.si/images/getrobux-ninja_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_off000043f9.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x43F9 25056 bytes
SHA-256: 564f81e9e5acdc4910ab0dc9443e39801510a68e56bbfda430bc1816e99f238c
font_01_sfnt_off00007cd6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7CD6 18204 bytes
SHA-256: eb378c11d4c3edf43fd4a317fe896922564aeaa66921672c4d59ab66e1a3bbf9

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