Malicious PDF — malware analysis report

Static analysis result for SHA-256 a9917df7382bbd80…

MALICIOUS

PDF

35.6 KB Created: 2021-06-27 00:36:37 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15
MD5: 87dbbcd7c6154a0870f684ff6876bcf5 SHA-1: 82915cd0ef90963b439e556718a0d8476bb1ce6a SHA-256: a9917df7382bbd80f943253a2bf0f33eb348dee22c6c59171283d63943011b05
100 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains embedded links that are identified as malicious redirectors, specifically pointing to content related to game hacks and exploits. The document body and heuristics indicate a lure to download or access potentially harmful files, likely leading to further malware or credential theft. No scripts were extracted from this sample.

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/free-gamepass-roblox-scripts-site-v3rmillion.net-game-hack In PDF document text
    • http://pustaka.ust.ac.id/repository/free-roblox-accounts-walang-pin_GM431946152.pdfIn PDF document text
    • http://pustaka.ust.ac.id/repository/robux-hack-tools_GM431946152.pdfIn PDF document text
    • http://pustaka.ust.ac.id/repository/roblox-free-robux-hack_GM431946152.pdfIn PDF document text
    • http://pustaka.ust.ac.id/repository/roblox-hack-tool-no-survey-only-images_GM431946152.pdfIn PDF document text
    • http://pustaka.ust.ac.id/repository/free-roblox-card_GM431946152.pdfIn PDF document text
    • http://pustaka.ust.ac.id/repository/www-coin-master-hack-tk_GM406889139.pdfIn PDF document text
    • http://pustaka.ust.ac.id/repository/how-to-get-hacks-on-roblox_GM431946152.pdfIn PDF document text
    • http://pustaka.ust.ac.id/repository/how-do-you-download-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://pustaka.ust.ac.id/repository/hacked-roblox-game_GM431946152.pdfIn PDF document text
    • http://pustaka.ust.ac.id/repository/free-for-mobile-roblox_GM431946152.pdfIn PDF document text
    • http://pustaka.ust.ac.id/repository/roblox-help-free-robux_GM431946152.pdfIn PDF document text
    • http://pustaka.ust.ac.id/repository/how-to-get-a-free-krambit-in-roblox_GM431946152.pdfIn PDF document text
    • http://pustaka.ust.ac.id/repository/free-limiteds-roblox_GM431946152.pdfIn PDF document text
    • http://pustaka.ust.ac.id/repository/wurst-18_GM479516143.pdfIn PDF document text
    • http://pustaka.ust.ac.id/repository/coin-master-hack-com_GM406889139.pdfIn PDF document text
    • http://pustaka.ust.ac.id/repository/coin-master-free-spins-link-2021-twitter_GM406889139.pdfIn PDF document text
    • http://pustaka.ust.ac.id/repository/how-to-get-free-robux-100-real-2021_GM431946152.pdfIn PDF document text
    • http://pustaka.ust.ac.id/repository/robux-come_GM431946152.pdfIn PDF document text
    • http://pustaka.ust.ac.id/repository/roblox-redeem-codes-free_GM431946152.pdfIn PDF document text
    • http://pustaka.ust.ac.id/repository/roblox-invitations-free-download_GM431946152.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_off00003364.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3364 22152 bytes
SHA-256: 2914d00070df045c426073f985d6de9033bf1e6df35149fde9573d3245cd9d16
font_01_sfnt_off0000644d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x644D 19684 bytes
SHA-256: 49c4756dc655d762740607799e44cca5dd223630b86de8d4ecbb919664cd943a