Malicious PDF — malware analysis report

Static analysis result for SHA-256 62b0cc434915875b…

MALICIOUS

PDF

35.8 KB Created: 2020-10-29 18:48:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2020-12-26
MD5: 37aa78253984bebd763d4522da118b9b SHA-1: bd59c5ebb2d1f1c9c2e875faf5f72325cf1df34e SHA-256: 62b0cc434915875ba95c42c2c10c0a3ab7bc8cc1f851cbd9b9aa3e47ca972214
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=john+deere+54+mower+belt+diagram In PDF document text
    • https://vawotitalu.weebly.com/uploads/1/3/2/7/132710714/xekamowerupudo-zasusasizix-gobemigora.pdfIn PDF document text
    • https://xikewewojan.weebly.com/uploads/1/3/4/0/134095915/dilizefekasufo.pdfIn PDF document text
    • https://nitetezelimon.weebly.com/uploads/1/3/1/4/131438651/poxupimilaz-tezozulafor.pdfIn PDF document text
    • https://talapilodegopez.weebly.com/uploads/1/3/0/9/130969507/lizurovaxini_mupuku_fetezowemisi_fokote.pdfIn PDF document text
    • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off00004c80.bin)
    • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off00004c80.bin)
    • https://cdn.shopify.com/s/files/1/0486/5274/6920/files/microsoft_ergonomic_keyboard_wireless_instructions.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0501/9690/6174/files/64566273423.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0500/9562/0253/files/8632474444.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/17dd83e5-8789-4d0c-aa63-6a727348c01b/45062980051.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0505/6652/9218/files/card_design_app_android.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7744/9366/files/weathershield_car_cover_washing_instructions.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0493/7059/5487/files/89085402967.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/09a8e18a-0ded-4c77-99df-8e86eaa7af5e/jokotijujepatofaku.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_off00004c80.bin)

Related samples 5

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_off00004c80.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4C80 5492 bytes
SHA-256: 5b17579026f043681b3f5b6ad1b4ae3b0322a8d5366d3f8482720a22c64d22b1
font_01_sfnt_off00005f1b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F1B 10372 bytes
SHA-256: efa33a136f6e85c19c0e775eadf7237478e8adc56234ea345f4e1b6403cb5ba5

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