Malicious PDF — malware analysis report

Static analysis result for SHA-256 1e0334fa689946e5…

MALICIOUS

PDF

45.5 KB Created: 2020-10-28 01:08:59 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2020-12-26
MD5: 236f5ffe6750d68bde01cbca8fe1596b SHA-1: 715e5d083ab8369e1fdbe8b371924046626cb2d5 SHA-256: 1e0334fa689946e5ed349aba66a937ddea8030d6d722ad73e42946469f1a74a3
134 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • 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/123?keyword=mathematics+of+personal+finance+sem+1+apex+answers In PDF document text
    • https://nipibodofabujid.weebly.com/uploads/1/3/4/2/134265940/2d391.pdfIn PDF document text
    • https://xumusiroti.weebly.com/uploads/1/3/4/3/134321309/607295a05c5df.pdfIn PDF document text
    • https://guwomenod.weebly.com/uploads/1/3/0/8/130873843/nukunuraki.pdfIn PDF document text
    • https://jovikuveditowe.weebly.com/uploads/1/3/0/8/130874612/vomuginazox-firakinut-suvawe-wefomigas.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366377/normal_5f95ae4dc6640.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387430/normal_5f8cf89bf37c2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387406/normal_5f94e99c8f177.pdfIn PDF document text
    • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off000071bf.bin)
    • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off000071bf.bin)
    • https://cdn.shopify.com/s/files/1/0427/6443/5612/files/gujorizomijibikopanuman.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0485/2478/7867/files/kumon_math_worksheets_addition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0504/6639/0176/files/mmoire_licence_ressources_humaines.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0486/7171/9574/files/risuzif.pdfIn PDF document text
    • https://s3.amazonaws.com/sugaguxagu/4058053281.pdfIn PDF document text
    • https://s3.amazonaws.com/felasorarabipis/basic_computer_network_objective_questions_and_answers.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b0022642-c230-4caf-9853-a6145ce356c5/32611534764.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/109b3a00-6d99-42c0-90a4-28d193f8e91a/vmware_esxi_6._5_hpe.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d60a0b8d-0d5b-4b5c-a0e3-488acd221ded/83960308303.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b4ab7a08-6dbf-4aad-b03e-ceee6b7da305/india_vs_sri_lanka_match_live_streaming_free.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b8533674-71ab-410a-9a14-be75fbcf331e/civil_engineering_reference_manual_f.pdfIn PDF document text
    • https://s3.amazonaws.com/jofunozuzof/beginning_reading_worksheets.pdfIn PDF document text
    • https://s3.amazonaws.com/foneniz/descargar_mapa_bilbao.pdfIn PDF document text
    • https://s3.amazonaws.com/sugaguxagu/55151798573.pdfIn PDF document text
    • https://s3.amazonaws.com/wogikokuzotaxa/handbook_of_water_and_wastewater_treatment_technologies_download.pdfIn PDF document text
    • https://s3.amazonaws.com/jazuravazaguz/88651047322.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 extracted file (font_00_sfnt_off000071bf.bin)

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000071bf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x71BF 5472 bytes
SHA-256: 6ee989fc6f77a7202dae45e561d6705daacbb8978a6ded81d82e1ff95b0076c1
font_01_sfnt_off00008459.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8459 10476 bytes
SHA-256: d41e238ab3e8860660631ca7ac8904aeb9d986b67aa09a30e3a582056326ddad