Malicious PDF — malware analysis report

Static analysis result for SHA-256 3e53ad84e14adcdb…

MALICIOUS

PDF

63.3 KB Created: 2020-12-09 12:33:51 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2022-06-20
MD5: 556a0821284abcf14803325065d8a010 SHA-1: 1a23bf21a21c10562239bae73b844040b475f945 SHA-256: 3e53ad84e14adcdba14fca61f1e4cb754f9c27db22fafb007c51370d6dc02a1f
194 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • 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.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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://gettraff.ru/strik?utm_term=law+firms+in+roseland+nj In PDF document text
    • https://static.s123-cdn-static.com/uploads/4454171/normal_5fcd82e1a0b07.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4488102/normal_5fb41f1314497.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4468296/normal_5fbe295de0c4d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4385422/normal_5fa846cf65528.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4483362/normal_5fbf3d2c5da93.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369143/normal_5f9a33606ec94.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/nijosinizo/pozerisipemogafanaj.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbdf8b8bc819f1cf49e55ee/1606285497354/circle_of_dreams_druid_xanathars.pdfIn PDF document text
    • https://s3.amazonaws.com/fadedosi/merikeje.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/86244a8e-d4e9-4ced-856c-c3dcfbe766a1/65252776700.pdfIn PDF document text
    • https://s3.amazonaws.com/xesigeze/new_international_business_english_student_s_book_free_download.pdfIn PDF document text
    • https://s3.amazonaws.com/wusigipufuvowix/viziwoduredunugozax.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5f3e0842-5c44-4d9a-98fd-50cea3766226/63332064611.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc303af3dfdd95b60e2e35b/t/5fcac0dd192cc11d4f7b4180/1607123165511/62162370240.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/de4f2d31-a777-4a19-b275-875662bdc487/earthbound_manual_snes.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In 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_off0000baf4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBAF4 5160 bytes
SHA-256: 7b369c6b91568b4a665650472befdd84df8be2a4e39b4e839770de7ffa09fb8b
font_01_sfnt_off0000cc88.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCC88 10464 bytes
SHA-256: 3241135888bbabc97af4cfefe616b67e435443684fd9951a2326d1bf0282e615

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