Malicious PDF — malware analysis report

Static analysis result for SHA-256 1e339318600895ce…

MALICIOUS

PDF

48.2 KB Created: 2020-10-08 08:03:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-17
MD5: 37b0c466218e1785269df0443c8e3a5a SHA-1: 9213162a8d0f85d9afc9b0dbb5d9279b6cbf1324 SHA-256: 1e339318600895ce34187124035f23d50bd18f87bd7ae4be24e9e9c048c0e689
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://cctraff.ru/strik?keyword=hydrothermal+carbonization+pdf In PDF document text
    • http://files.handystansplumbing.com/uploads/1/3/0/7/130776490/5474087.pdfIn PDF document text
    • http://files.professorwillis.com/uploads/1/3/0/9/130969819/3536095.pdfIn PDF document text
    • http://lizuj.emilysarahmatthews.com/uploads/1/3/1/0/131071277/70784.pdfIn PDF document text
    • http://files.bigcreekbulldogs.com/uploads/1/3/1/4/131453595/056aca8.pdfIn PDF document text
    • http://jekat.southerndutchgirlart.com/uploads/1/3/1/0/131070227/963dbad69667956.pdfIn PDF document text
    • https://site-1040341.mozfiles.com/files/1040341/nidapukutofugolubosikamim.pdfIn PDF document text
    • https://site-1040663.mozfiles.com/files/1040663/1038838330.pdfIn PDF document text
    • https://site-1037048.mozfiles.com/files/1037048/56198381786.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6463/1189/files/timawajegujenowe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9869/4042/files/xelatadorifalikove.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0479/1146/9220/files/bebexisoxasunotedapolu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9423/7593/files/russell_stover_candy_sugar_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0496/4945/1161/files/63318012192.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e3a74ff6-1bc4-4dfd-a7e3-ee8575f68b6c/vesovusoredit.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3b4b436b-1487-4a2b-a1a1-03b234c72af3/26823990432.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006e74.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E74 5260 bytes
SHA-256: 4e70007db057bc31c12619f3e36451626b7e569f98f45f8f6a9ee03d0d132b3b
font_01_sfnt_off00008034.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8034 11132 bytes
SHA-256: b35b25f313125829de36b03269c050ed1243499abacf13b51dc38a6dae96fc3c
font_02_sfnt_off0000a5e4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA5E4 4324 bytes
SHA-256: cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34

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