Malicious PDF — malware analysis report

Static analysis result for SHA-256 ea08f780dc8b1dac…

MALICIOUS

PDF

42.1 KB Created: 2021-04-24 17:05:30 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-18
MD5: f866d437a362cc913f5cc497fd353c1d SHA-1: 805c54375c44beb527a6c3fd41103228fd9242d1 SHA-256: ea08f780dc8b1dacc00d0b56598076dda1a18296223ceaeb6397e689c8ab0fa6
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. It uses an urgency-based lure. 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 0.9941

Heuristics 5

  • 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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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/roblox-dinosaur-simulator-hack-script-game-hack PDF link annotation
    • https://sitecontabil.com.br/ckfinder/userfiles/files/get-free-robux-on-roblox-with-coputer.pdfIn PDF document text
    • https://sitecontabil.com.br/ckfinder/userfiles/files/hacking-roblox-thumbnail.pdfIn PDF document text
    • https://sitecontabil.com.br/ckfinder/userfiles/files/roblox-ninja-animation-free.pdfIn PDF document text
    • https://sitecontabil.com.br/ckfinder/userfiles/files/roblox-hack-mad-city-guns.pdfIn PDF document text
    • https://sitecontabil.com.br/ckfinder/userfiles/files/how-to-inspect-hack-roblox-robux-redeem.pdfIn PDF document text
    • https://sitecontabil.com.br/ckfinder/userfiles/files/unlimited-jump-hack-roblox.pdfIn PDF document text
    • https://sitecontabil.com.br/ckfinder/userfiles/files/how-to-get-roblox-coins-for-free.pdfIn PDF document text
    • https://sitecontabil.com.br/ckfinder/userfiles/files/roblox-sand-simulator-hack-for-android.pdfIn PDF document text
    • https://sitecontabil.com.br/ckfinder/userfiles/files/free-robux-no-verification-no-email.pdfIn PDF document text
    • https://sitecontabil.com.br/ckfinder/userfiles/files/addmin-comands-in-roblox-hacking.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
stream_003_off000043a9.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x43A9 26852 bytes
SHA-256: f553b9c68d4981fc61fcce1dd48686b2eb3df608e537c914c96a01d1e821161b
font_01_sfnt_off00008072.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8072 19152 bytes
SHA-256: 0ad325bdf049f08d3f0651e51af277242cb97c6077a7cff504033c9811b46834

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