Malicious PDF — malware analysis report

Static analysis result for SHA-256 2989761ce91a1a4a…

MALICIOUS

PDF

45.2 KB Created: 2020-10-03 01:35:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-17
MD5: 299224f7d646c487c9093edd26f62f54 SHA-1: df5032f11ad2caed497a4dbeb33d0e57e4cb65cb SHA-256: 2989761ce91a1a4addf4c18a338c4a17759db0f4308c7115f60cfed643aeeb5f
194 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://ttraff.club/pify?keyword=life+of+pi+summary+by+chapter In PDF document text
    • https://site-1036661.mozfiles.com/files/1036661/49288868258.pdfIn PDF document text
    • https://site-1041084.mozfiles.com/files/1041084/notuzexajivafoxi.pdfIn PDF document text
    • https://site-1037889.mozfiles.com/files/1037889/worusesobovonikaza.pdfIn PDF document text
    • https://site-1037082.mozfiles.com/files/1037082/guzijivavulisexeti.pdfIn PDF document text
    • https://site-1036625.mozfiles.com/files/1036625/35396411986.pdfIn PDF document text
    • http://xudip.sherriobermark.com/uploads/1/3/1/4/131438111/7669385.pdfIn PDF document text
    • http://tuvipifa.ibisregalia77.com/uploads/1/3/1/4/131407080/465666.pdfIn PDF document text
    • http://files.sctaci.com/uploads/1/3/2/3/132302710/5626417.pdfIn PDF document text
    • http://files.stemariefaithformation.com/uploads/1/3/1/1/131164399/9c13a1db72e32ea.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0496/2988/8676/files/sevitawirune.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8270/1214/files/dual_xpr82d_installation.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3491/0618/files/tijata.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0481/6591/2729/files/62934586372.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4514/9079/files/dewalt_miter_saw_parts_dw706.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0485/3301/2635/files/9988626359.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000741d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x741D 5408 bytes
SHA-256: cfc7ea321502017a7122c191699a0484e239b33da876e07323caef56668d3790
font_01_sfnt_off0000865b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x865B 9952 bytes
SHA-256: 21c8a3404ce37a70cafa148532389c9af4adec520ba29fab3640cba743af8694

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