Malicious PDF — malware analysis report

Static analysis result for SHA-256 703d9ac711c2bde8…

MALICIOUS

PDF

35.8 KB Created: 2021-06-19 06:07:55 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-11
MD5: 385af07d4aa642cb3b5785a43b8aae3c SHA-1: 2effc53d605f89caf5e625923331a303da5a5061 SHA-256: 703d9ac711c2bde8d8047b42b679e385965d7117ea278cc2be3cf3fdcfce9eb1
100 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a prominent link to a known malicious redirector, disguised as a lure for free Robux. The ML classifier also flagged this PDF as malicious. The presence of embedded URLs and the heuristic firing for a malicious redirector strongly suggest this document is part of a phishing or scam campaign designed to lead users to malicious content.

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-on-roblox-in-youtube.com-game-hack In PDF document text
    • http://perpus.i2s-learning.com/repository/coin-master-bonus_GM406889139.pdfIn PDF document text
    • http://perpus.i2s-learning.com//repository/coin-master-free-coins-twitter_GM406889139.pdfIn PDF document text
    • http://perpus.i2s-learning.com//repository/code-free-robux_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/coin-master-free-spins-2021-blogspot_GM406889139.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/free-spins-coin-master-links-2021_GM406889139.pdfIn PDF document text
    • http://perpus.i2s-learning.com//repository/roblox-mobile-hack_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/free-roblox-toys_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/minecraft-pocket-edition-free_GM479516143.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/free-robux-mobile_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/how-to-make-free-items-on-roblox_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com//repository/robux-gift-card-free_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com//repository/coinmaster-twitter_GM406889139.pdfIn PDF document text
    • http://perpus.i2s-learning.com//repository/how-do-u-get-robux_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/collect-robux_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/where-can-i-get-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/coin-master-spins-hack_GM406889139.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/how-to-hack-somone-roblox-unpachable_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com//repository/20210-free-spin-links-for-coin-master_GM406889139.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/how-to-get-free-minecoins-in-minecraft_GM479516143.pdfIn PDF document text
    • http://perpus.i2s-learning.com//repository/free-robux-with-no-survey_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_off000034f4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x34F4 22072 bytes
SHA-256: 2822c1318242fb6cdb51dc7aea114ace54ca836ca71d2685a078b05edf8d20de
font_01_sfnt_off000065ba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x65BA 19548 bytes
SHA-256: 973a4fb1594923df7651f186c39af43e28f550709ddcf140337f74433ee729c4

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