Malicious PDF — malware analysis report

Static analysis result for SHA-256 87087963e508c7e7…

MALICIOUS

PDF

49.0 KB Created: 2020-10-18 13:51:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-17
MD5: fa215406e48895057061934cafb7a211 SHA-1: 6a01388dc5654fa6f5ffb86695555a0151b6483d SHA-256: 87087963e508c7e7e6b3b472b10bc6f5609b7e443c5e696cba29c77d5feb0fc3
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://gettraff.ru/123?keyword=nrl+draw+pdf+2020 In PDF document text
    • https://tenabawik.weebly.com/uploads/1/3/2/7/132710661/tomirexabefunonumas.pdfIn PDF document text
    • https://sibakixode.weebly.com/uploads/1/3/2/8/132814768/be9d745.pdfIn PDF document text
    • https://kesevaze.weebly.com/uploads/1/3/1/3/131383297/2624916.pdfIn PDF document text
    • https://bebamewikirebu.weebly.com/uploads/1/3/0/8/130874540/3135347.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368501/normal_5f883c5938272.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4375894/normal_5f8bec838f255.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369781/normal_5f8c11a93b618.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/1/0431/4998/3905/files/81304947821.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0484/9159/3889/files/vewelevonipisevo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0503/0563/0404/files/microeconomics_class_12_chapter_1.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4973/8650/files/37406849300.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0499/6680/9241/files/sevowelumoriteviramuk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0499/2394/8719/files/45800725199.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0468/8320/9373/files/final_fantasy_nes_guide_book.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0498/7401/0273/files/p90x2_total_body_calories_burned.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0318/2231/files/neseriwowof.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0501/1154/5509/files/hilti_impact_driver_sid_18-a.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0496/6200/1301/files/makevudukikonebogaxebo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0486/4249/0526/files/air_fryer_ribs_keto.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0497/1518/3777/files/fotemarowofotopifaber.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0479/4440/1052/files/buvojusuxesabubavo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9118/2243/files/gijogidemuwawogigagiwip.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 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_off00008254.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8254 5192 bytes
SHA-256: 2a8de97f925073b61e2a46cbdeb01fe196ce6eaf42b019e6d30695de5f8d9721
font_01_sfnt_off00009422.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9422 10112 bytes
SHA-256: 26e83ec50fe6c8f4a318c997e6f320b683d831a87d99bd1212c71fa41f4e1397

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