Malicious PDF — malware analysis report

Static analysis result for SHA-256 c045210e6778a6d0…

MALICIOUS

PDF

41.5 KB Created: 2020-08-10 21:36:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-02-23
MD5: d654bb5400f627483dc628e1d82d86fd SHA-1: 56d0ac8332069460a3b05779e91fe97b5197136d SHA-256: c045210e6778a6d090f65200dbefa687c88136987e4e41ca284aac318ce519df
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.cc/pify?keyword=fundamentals+of+astrodynamics+and+applications+2nd+edition+pdf In PDF document text
    • http://files.meganartandphoto.com/uploads/1/3/1/4/131453124/6829396.pdfIn PDF document text
    • http://jawalul.cosplayinkfactory.com/uploads/1/3/1/8/131857054/73437ebb76b4.pdfIn PDF document text
    • http://files.atssbregion16.com/uploads/1/3/0/9/130969825/478773.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/1/0434/5744/6041/files/zawinakovasadez.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7061/1861/files/a_primer_of_abstract_mathematics_ash.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1243/1770/files/25874460330.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1571/6513/files/52208353350.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/nudukesobiji.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0833/4744/files/58559161998.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2412/9946/files/mezepewegodu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9715/3943/files/learning_french_language.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6845/7122/files/nodafikudamejute.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7056/3239/files/joxipanup.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9122/0887/files/logelajunagawi.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000053fa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x53FA 3964 bytes
SHA-256: 8980e09ef5b67ce8b750f0b6c2f613f53556dd262dc9b724fe0cdb989015c3e3
font_01_sfnt_off0000621b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x621B 5488 bytes
SHA-256: 6bfbe86add870953cbaf6654c20e0353d186c88ceb31a91a29fd19e1d51405d5
font_02_sfnt_off000074bd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x74BD 9816 bytes
SHA-256: be7af7c1424f4089fe0b575e3c95bd68130ac49fcdf85409519c55c646c8092f

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