Malicious PDF — malware analysis report

Static analysis result for SHA-256 1a6259c52e9f70db…

MALICIOUS

PDF

41.5 KB Created: 2020-08-05 06:51:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 62c97300fcd34a3e69d827e7c2832570 SHA-1: 29bde371c908bf989d25064a9266b08c2fb14673 SHA-256: 1a6259c52e9f70dbe1e13e628b0bbfd1b9cfc5b2f17e9d8c2b9c680160bf9a63
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.ru/pify?keyword=brand+audit+pdf In PDF document text
    • http://files.angeliquemichaudphotographie.com/uploads/1/3/1/4/131437530/465aecb3230f9cf.pdfIn PDF document text
    • http://files.designdome.net/uploads/1/3/2/3/132302833/9742496.pdfIn PDF document text
    • http://files.lifeofabusymommy.com/uploads/1/3/1/4/131407767/pixotanik.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/1/0434/6334/4294/files/toxicity_testing_in_cosmetics.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1795/3702/files/21104590962.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2381/9175/files/78089183867.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4492/0726/files/70046899465.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5515/3303/files/14700493127.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1958/3133/files/boxulojimilunosipotejiba.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5372/7394/files/8557719593.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6510/6847/files/81847351079.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5597/2501/files/86223998102.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9569/5266/files/sidakiveporakesezokejel.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8794/6143/files/harley_service_manual.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_off000066cd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x66CD 4872 bytes
SHA-256: 5f3177a14c4d35853772143dc9ded74bb3e2f99a0355b633d82eb95945c8a5d2
font_01_sfnt_off00007771.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7771 10076 bytes
SHA-256: cf165cfbbec3d13d886a8d7f3629cad15f832006f44ff02c8dd8590d4a53762d

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