Malicious PDF — malware analysis report

Static analysis result for SHA-256 80f3eb5ebe41c476…

MALICIOUS

PDF

43.3 KB Created: 2020-10-07 20:22:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-19
MD5: 94224cd3c5ce7a4920e990aaf4b11c4e SHA-1: 7ced5e20cfb8a0e15c1a6d07322a57d5b098dbc4 SHA-256: 80f3eb5ebe41c476582c6ec2590068753bf8b40b2b2df890a49bb79151d1de20
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.link/pify?keyword=organization+of+the+periodic+table+worksheet+answers In PDF document text
    • http://files.flcsoemae605.com/uploads/1/3/0/8/130873828/4143501.pdfIn PDF document text
    • http://mizon.themodernretro.co.uk/uploads/1/3/1/8/131856919/zisumasip.pdfIn PDF document text
    • http://files.missdabbeekeh.com/uploads/1/3/0/8/130873802/zasun_belajiwunan_sijujepibokavom_wagariwina.pdfIn PDF document text
    • http://files.interporcspain.org/uploads/1/3/1/0/131070883/8325484.pdfIn PDF document text
    • https://site-1037005.mozfiles.com/files/1037005/47062137276.pdfIn PDF document text
    • https://site-1043769.mozfiles.com/files/1043769/24510059766.pdfIn PDF document text
    • https://site-1037902.mozfiles.com/files/1037902/ximepazovitutazevon.pdfIn PDF document text
    • https://site-1037920.mozfiles.com/files/1037920/48729160660.pdfIn PDF document text
    • https://site-1039721.mozfiles.com/files/1039721/62512720817.pdfIn PDF document text
    • http://files.brazilian-samba.com/uploads/1/3/1/4/131407226/6522991.pdfIn PDF document text
    • http://mekupivaz.everydaythread.com/uploads/1/3/2/7/132712324/nuvagasixuxik.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/1/0483/4944/6307/files/juxat.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6153/3089/files/ikea_pax_instructions_sliding_doors.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0487/9581/2005/files/namerasidesuforofure.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/3173/9033/files/boys_in_the_boat_questions.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_off0000694a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x694A 5792 bytes
SHA-256: 4065f7c9b69fc60db36188c92c98fb90bd915de5a9a59f5f4b23b7331221af1d
font_01_sfnt_off00007d10.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7D10 10248 bytes
SHA-256: 0ef8b34f1410805257bda51793b6e761e191b5adb28f6ed9182f02869670e841

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