Malicious PDF — malware analysis report

Static analysis result for SHA-256 1b200211cff00c99…

MALICIOUS

PDF

40.4 KB Created: 2020-10-30 13:49:55 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-01-02
MD5: 187bc73f64bd5244a9747eee6e879625 SHA-1: 259bc2ad86ee367888a809c0209ad2e35e094814 SHA-256: 1b200211cff00c996b2a6cd0b6b00ec81c64ff2f31168b9968404b541d5b5b82
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=665+credit+score+good In PDF document text
    • https://gimejexoxixaza.weebly.com/uploads/1/3/1/8/131872185/3731638.pdfIn PDF document text
    • https://rixokofumi.weebly.com/uploads/1/3/1/3/131380985/kanizol.pdfIn PDF document text
    • https://vodipewelo.weebly.com/uploads/1/3/1/6/131637384/141db76b1ae66f.pdfIn PDF document text
    • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off00006015.bin)
    • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off00006015.bin)
    • https://cdn.shopify.com/s/files/1/0507/9924/7557/files/54873167078.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0482/2197/8778/files/download_zanti_3.0_apk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0502/7853/1255/files/walmart_google_wifi_router.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0502/1876/2415/files/58393795261.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0480/3664/2975/files/kozilek_the_great_distortion_edh.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/0676/8798/files/li_ching-yuen_birth_and_death.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4964/7270/files/heart_of_darkness_study_guide_questions.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9f04f836-7dbf-40e6-8b94-7592cab8d863/juzejifajaga.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0485/2452/5730/files/emf_2018_nombre_de_personne.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0499/8669/9415/files/11838405061.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c262df02-fe3d-4bff-8549-459538707f67/25403343106.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5843/0106/files/vovobom.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b336a5a9-3552-48cd-9d9a-b6f31a50b8d8/wawakudawamuj.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_off00006015.bin)

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_off00006015.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6015 5048 bytes
SHA-256: 34d7b8e9792b9568572a02cfdf989d771e35e3251ddc6a8882b48664df0911a2
font_01_sfnt_off00007153.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7153 10388 bytes
SHA-256: 0788cd201d2b04ab09460f4a84799b52c89fbc201942ca36e55165920939772a

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