Malicious PDF — malware analysis report

Static analysis result for SHA-256 43da665ffdffad8b…

MALICIOUS

PDF

41.8 KB Created: 2021-05-14 22:38:00 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: e47d43b11139de0636a0e1c5a3b7a72f SHA-1: 68641b5ca4f3a572f47b5bbd50be03066551788d SHA-256: 43da665ffdffad8b2e29db40d40d6a1a2039bf241a2bce53d8915584856e35fa
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/431946152/actual-free-robux-game-hack PDF link annotation
    • http://www.vpn-solutions.com.pe/ckfinder/userfiles/files/roblox-hackprogamers-com_GM431946152.pdfIn PDF document text
    • http://www.vpn-solutions.com.pe/ckfinder/userfiles/files/free-spin-hack-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://www.vpn-solutions.com.pe/ckfinder/userfiles/files/free-robux-no-verification-no-download-2021_GM431946152.pdfIn PDF document text
    • http://www.vpn-solutions.com.pe/ckfinder/userfiles/files/how-to-get-free-robux-on-roblox-2021_GM431946152.pdfIn PDF document text
    • http://www.vpn-solutions.com.pe/ckfinder/userfiles/files/how-to-get-free-robux-without-downloading-any-apps_GM431946152.pdfIn PDF document text
    • http://www.vpn-solutions.com.pe/ckfinder/userfiles/files/robux-websites-2021_GM431946152.pdfIn PDF document text
    • http://www.vpn-solutions.com.pe/ckfinder/userfiles/files/como-hackear-coin-master-ios_GM406889139.pdfIn PDF document text
    • http://www.vpn-solutions.com.pe/ckfinder/userfiles/files/minecraft-bedrock-edition-pc-free_GM479516143.pdfIn PDF document text
    • http://www.vpn-solutions.com.pe/ckfinder/userfiles/files/coin-master-hack-spins-apk-download_GM406889139.pdfIn PDF document text
    • http://www.vpn-solutions.com.pe/ckfinder/userfiles/files/roblox-apocalypse-rising-hack_GM431946152.pdfIn PDF document text
    • http://www.vpn-solutions.com.pe/ckfinder/userfiles/files/how-do-i-earn-robux_GM431946152.pdfIn PDF document text
    • http://www.vpn-solutions.com.pe/ckfinder/userfiles/files/100-hack-coin-master_GM406889139.pdfIn PDF document text
    • http://www.vpn-solutions.com.pe/ckfinder/userfiles/files/free-2021-robux_GM431946152.pdfIn PDF document text
    • http://www.vpn-solutions.com.pe/ckfinder/userfiles/files/minecraft-hacks-for-2b2t_GM479516143.pdfIn PDF document text
    • http://www.vpn-solutions.com.pe/ckfinder/userfiles/files/coin-master-free-coins-and-spins-link_GM406889139.pdfIn PDF document text
    • http://www.vpn-solutions.com.pe/ckfinder/userfiles/files/free-robux-cards_GM431946152.pdfIn PDF document text
    • http://www.vpn-solutions.com.pe/ckfinder/userfiles/files/coin-master-daily_GM406889139.pdfIn PDF document text
    • http://www.vpn-solutions.com.pe/ckfinder/userfiles/files/coin-master-400-spin-link_GM406889139.pdfIn PDF document text
    • http://www.vpn-solutions.com.pe/ckfinder/userfiles/files/minecraft-build-hacks_GM479516143.pdfIn PDF document text
    • http://www.vpn-solutions.com.pe/ckfinder/userfiles/files/get-free-spins-on-coin-master_GM406889139.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
font_00_sfnt_off0000475e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x475E 24952 bytes
SHA-256: 44358e0a6f4df25094404019ba68bd295bc555a870fabad1297c2bc6451d7597
font_01_sfnt_off000080a1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x80A1 18420 bytes
SHA-256: 37b67a04c59087902b42b65f26bec20808041b5185ddbc4d4c9e15973e68d0ef

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