Malicious PDF — malware analysis report

Static analysis result for SHA-256 da8a7c5158e6c5f6…

MALICIOUS

PDF

34.3 KB Created: 2021-06-27 14:45:20 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-07
MD5: 62eb24a1eed9ee95346e038d4b37c693 SHA-1: f440793f5047cd86a388139f4312e49dfec0ec8f SHA-256: da8a7c5158e6c5f67387dba5c0c73fe3d8f60312a300ae5b2a4ca88c98102673
100 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains embedded links that redirect to known malicious infrastructure, specifically promoting free Robux and Coin Master spins. The ML classifier also flagged this PDF as malicious. The presence of a visual download button and the lure of free in-game currency suggest a phishing or scam attempt designed to lead users to malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 3

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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
  • 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 http://netcdn.co/app/431946152/how-to-get-free-robux-with-gudd.info-game-hack In PDF document text
    • http://pustaka.bbppketindan.info//repository/get-2021-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/coin-master-free-spins-deutsch-download-2021-link_GM406889139.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/hacks-for-roblox-mobile_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/free-roblox-premium_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/how-to-hack-thru-premium-houses-in-roblox-pacifico_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/roblox-free-rthros_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info//repository/roblox-hack-scripts-pastebin_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/coin-master-unlimited-free-spins-link-2021_GM406889139.pdfIn PDF document text
    • http://pustaka.bbppketindan.info//repository/links-to-get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://pustaka.bbppketindan.info//repository/how-to-get-free-coins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/roblox-cuffs-free_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/coin-master-hacking-news_GM406889139.pdfIn PDF document text
    • http://pustaka.bbppketindan.info//repository/www-roblox-com-free-robux_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/coin-master-free-cards-link-2021-today_GM406889139.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/how-to-hack-paintball-on-roblox_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/coin-master-free-cards_GM406889139.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/how-to-do-attack-seed-hack-roblox_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info//repository/free-robux-no-verification-no-survey_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/raidoijh-games-hack-for-roblox-fee_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info//repository/minecraft-pe-apk_GM479516143.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_off00002f97.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F97 21676 bytes
SHA-256: 2e868284cc81bb34750ec5d884af8109d3b546be218381a70a843cf2e2071abf
font_01_sfnt_off00005eea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5EEA 19708 bytes
SHA-256: b4679d0fbfa4e15e444bec938f86c257f8533ec44fa67bb8d004e7cd8fce4a72

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