Malicious PDF — malware analysis report

Static analysis result for SHA-256 38b682ee31aefc3e…

MALICIOUS

PDF

38.4 KB Created: 2020-10-17 15:40:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-17
MD5: cd0f15b2b856dec4a62ea0dc01d2acbc SHA-1: f5ad032bbc9c7a53a28ace8fed63f8a6286b0f4a SHA-256: 38b682ee31aefc3ed54389ce7d0559817cff13ad098bbe90842cf5d2c5f36756
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=l+oeil+du+loup+questionnaire+reponse In PDF document text
    • https://dutitujazekap.weebly.com/uploads/1/3/0/8/130814390/1515306.pdfIn PDF document text
    • https://topodomero.weebly.com/uploads/1/3/2/6/132696018/16cac.pdfIn PDF document text
    • https://lupolaluxu.weebly.com/uploads/1/3/2/6/132681144/sojugirajirixor-japabipaf-matekejonibo-sirixokole.pdfIn PDF document text
    • https://viweposedijul.weebly.com/uploads/1/3/1/0/131070314/7451837.pdfIn PDF document text
    • https://nudopimiga.weebly.com/uploads/1/3/1/0/131070212/radodasiv.pdfIn PDF document text
    • https://buxivadoga.weebly.com/uploads/1/3/0/7/130740323/kugit.pdfIn PDF document text
    • https://vozunutav.weebly.com/uploads/1/3/0/9/130969695/faxenute.pdfIn PDF document text
    • https://pejopazuzaguwoz.weebly.com/uploads/1/3/2/8/132815183/5204409.pdfIn PDF document text
    • https://vozunutav.weebly.com/uploads/1/3/0/9/130969695/3274198.pdfIn PDF document text
    • https://fijojonibiw.weebly.com/uploads/1/3/2/6/132681787/jibigamefomoni.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/1/0483/8542/5557/files/mewekamopogojeb.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4318/2999/files/how_to_find_the_angle_between_two_vectors_given_dot_product_and_cross_product.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0492/1779/8310/files/35571923274.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0266/8625/9391/files/popeil_pasta_maker_recipe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0486/0752/7077/files/describe_a_person_esl_worksheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0483/2028/2787/files/foxizafa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0483/9905/7045/files/dimitubukijodun.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/2624/0920/files/dbz_episodes_and_movies_in_order.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4642/8062/files/fiber_optic_cable_splicing_training.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_off000054ef.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x54EF 5020 bytes
SHA-256: 27023fea9fbed4c1fab47edf25b3a89718d00b47e7ec562064931576b147bcec
font_01_sfnt_off00006607.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6607 11444 bytes
SHA-256: d319987242682d90d7f427b000a818c2264027a9fd74f1ea5366dc63d22d9839

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