Malicious PDF — malware analysis report

Static analysis result for SHA-256 d29715946d25de1a…

MALICIOUS

PDF

42.3 KB Created: 2020-11-04 15:21:51 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-03-31
MD5: cab489613098950a5ab5a4438f894b5f SHA-1: 573386313f4eccd9e2abe496f9a65094c09e98a1 SHA-256: d29715946d25de1a7507103933c57a9f3d4facf8a86c7b185f5562ee0a0612fa
134 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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?keyword=uva+ticket+office+phone+number In PDF document text
    • https://cdn-cms.f-static.net/uploads/4383805/normal_5f99588826aa9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366045/normal_5f8d02907aa86.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365655/normal_5f8894beb8ea5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4393348/normal_5f9ca78ea384e.pdfIn PDF document text
    • https://mazovibodekimiv.weebly.com/uploads/1/3/4/3/134398511/wofuseberuviki.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374689/normal_5f8908905f005.pdfIn PDF document text
    • https://javogukurajukip.weebly.com/uploads/1/3/4/2/134235542/wepateropazuva.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4380700/normal_5f8ea8bb73bb2.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/xuxifuzituwu/1036043262.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0488/3821/3797/files/jawuvasipelubukux.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fe153ab4-f291-428e-ac83-b4b4cc8e6208/20976635276.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0497/7783/6193/files/46469069927.pdfIn PDF document text
    • https://s3.amazonaws.com/bofake/popular_concert_tours_2020.pdfIn PDF document text
    • https://s3.amazonaws.com/memul/mopuriwopeselusaruxuv.pdfIn PDF document text
    • https://s3.amazonaws.com/jenisozazewubo/sim_tower_2.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e6016e1b-71eb-49eb-b962-f7f36fa293a8/8972223737.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_off0000666c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x666C 5300 bytes
SHA-256: 942471492647289068023f4d21ce1158a42a989cd1db00657deeb6f010407c3b
font_01_sfnt_off00007861.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7861 10560 bytes
SHA-256: 884c4ed0fb1809c51d44727ad0046568e4fdf0d0da29a06082e1c2806b50f114