Malicious PDF — malware analysis report

Static analysis result for SHA-256 8282102c1e035a92…

MALICIOUS

PDF

71.2 KB Created: 2020-12-31 11:18:56 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-31
MD5: 7dc50db6459bdb2c98019128a67becd0 SHA-1: 1189fe08ed21efb380cd36874cdadef81a615ec1 SHA-256: 8282102c1e035a92c6585652a47e6a396465c77f248b473fdfad008ba05245d8
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a heuristic firing for a malicious redirector link pointing to 'traffine.ru', which is also listed as an IOC. The ML classifier and ClamAV detection strongly indicate malicious intent. Although no scripts were explicitly extracted, the PDF structure and the presence of a malicious URL suggest it's designed to redirect users to a phishing or malware download site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9747

Heuristics 3

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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.
  • 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://traffine.ru/strik?utm_term=funny+ringtones+free+download+pagalworld In PDF document text
    • https://cdn-cms.f-static.net/uploads/4406166/normal_5f9add2d78762.pdfIn PDF document text
    • https://cdn.sqhk.co/lapitobexeva/Y4hfVia/a_little_warped_by_annette_marie.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366000/normal_5fa34347f30fe.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4416805/normal_5fb90fcad8cdd.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4401517/normal_5f961f9b2aa12.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413369/normal_5fa1177cbd869.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4495526/normal_5fd7160835f63.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4478947/normal_5fe7c9dd70105.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/galinikagopit/bunny_hop_game.pdfIn PDF document text
    • https://s3.amazonaws.com/badodemebo/fontspring_demo_font_free.pdfIn PDF document text
    • https://s3.amazonaws.com/gomakobez/9573914308.pdfIn PDF document text
    • https://s3.amazonaws.com/bofake/osrs_clue_scroll_guide_reldo.pdfIn PDF document text
    • https://s3.amazonaws.com/dusubonifu/phantom_of_the_opera_movie_pics.pdfIn PDF document text
    • https://s3.amazonaws.com/fonibinaraj/20629512231.pdfIn PDF document text
    • https://s3.amazonaws.com/jemazejodep/zuvuxozime.pdfIn PDF document text
    • https://s3.amazonaws.com/mipeboro/thomas_calculus_10th_edition_solution_manual_part_2.pdfIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e97a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE97A 5360 bytes
SHA-256: 019b00b62049e8499f96f22e5bbc6f30a35405cfe60e82efda93c257a1da5edd
font_01_sfnt_off0000fbe7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFBE7 10404 bytes
SHA-256: 8531db03c5e8db9345b1f9c6efbe3d0e7e0597c96968d05e02139301e7bb6a44

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