Malicious PDF — malware analysis report

Static analysis result for SHA-256 17679fa68fdace6c…

MALICIOUS

PDF

46.3 KB Created: 2020-10-16 16:08:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-19
MD5: 1fa0c5c636c15ffb85950173dc6d23c5 SHA-1: 5de2a4fada0fbf41253b5bd32d4d376b66d57224 SHA-256: 17679fa68fdace6c58c5bc3e955c15a8daf40679ef71d0d22b9791247d4d1f4c
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://ggtraff.ru/123?keyword=free+airplay+receiver+android+tv In PDF document text
    • https://kuromazu.weebly.com/uploads/1/3/2/6/132695519/zifezem.pdfIn PDF document text
    • https://bedizegoresupa.weebly.com/uploads/1/3/1/3/131379398/lukuxaluk.pdfIn PDF document text
    • https://dutitujazekap.weebly.com/uploads/1/3/0/8/130814390/5371308.pdfIn PDF document text
    • https://takijotirodone.weebly.com/uploads/1/3/1/6/131637658/85c53.pdfIn PDF document text
    • https://nipufijupetobug.weebly.com/uploads/1/3/1/4/131482996/74025b5babe.pdfIn PDF document text
    • https://lifagixuwemup.weebly.com/uploads/1/3/0/9/130969738/4b30b9f7ae9.pdfIn PDF document text
    • https://juzugimigiroteg.weebly.com/uploads/1/3/2/3/132302883/05478bdc4.pdfIn PDF document text
    • https://povutepumik.weebly.com/uploads/1/3/2/7/132741486/vasutanajive.pdfIn PDF document text
    • https://fanawilixu.weebly.com/uploads/1/3/1/4/131408209/tisijipeb.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/1/0432/1270/1854/files/go_math_grade_4_chapter_2_extra_practice_answer_key.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2969/9482/files/nerexelebifirek.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1246/4550/files/donaxamozuvikedojokonawuz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2737/3981/files/nedomagiwataxipuvajajado.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0496/0744/2584/files/grand_summoners_wiki_jp.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9644/8917/files/marine_corps_op_order_example.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9212/2527/files/nalorug.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5008/1183/files/kusivetabepupi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/73d7f739-5482-4ccf-a131-8ca62d0c9919/xilotuxalamotute.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/86552a58-8fa5-4288-955f-6afbd6f9121e/vadujozisolobevuwenaj.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f89df84c-90de-44e4-816a-1da96b530019/45826979993.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4babc21e-7948-4b82-8173-49161d6a987b/liresabatiri.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f68e4799-cce1-40c6-b9e6-30d1c4f64037/xudobosuxilujibapaw.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_off00007793.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7793 5008 bytes
SHA-256: b9bb9a8e4dd873c1929d64ba954591805618872fc207923de6ef62ecd43f1298
font_01_sfnt_off000088b4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x88B4 10296 bytes
SHA-256: 8a193af9546a97ee523ab0cb5f03b56c3ad2e79e3a863f41e175a8a6ba89c9cd

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