Malicious PDF — malware analysis report

Static analysis result for SHA-256 00c4c1c16f58085d…

MALICIOUS

PDF

36.4 KB Created: 2020-11-06 14:57:25 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: b291bee05583f39eeb21cac142b33375 SHA-1: 120fa04ce5145a5ea67cdcbd6c8e06c3fa6315f8 SHA-256: 00c4c1c16f58085d74087857d2470964fdd507c1b6871056436465ab0137f313
154 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm and routes users through malicious redirector infrastructure. Specific URLs and indicators for this sample are listed in the indicators section.

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.
  • 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.
  • 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://cctraff.ru/123?keyword=owners+manual+for+2012+ford+focus+se In PDF document text
    • https://genigudepa.weebly.com/uploads/1/3/1/0/131070712/6023986.pdfIn PDF document text
    • https://xusegabisaxo.weebly.com/uploads/1/3/4/4/134463696/goronag_dijusiwotiralax_lijexevatifefu.pdfIn PDF document text
    • https://kuzaloxamuw.weebly.com/uploads/1/3/1/4/131406684/9164939.pdfIn PDF document text
    • https://kakezilek.weebly.com/uploads/1/3/4/4/134401463/badubobuv_busezanenafiv_wimipuwojidewo.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/punagilelabon/anime_fighting_jam_wing_controls.pdfIn PDF document text
    • https://s3.amazonaws.com/lumixi/41875722130.pdfIn PDF document text
    • https://s3.amazonaws.com/zurovajij/badovikimomupax.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fa438332-56cb-4724-b10c-8009a9dfdc13/75811617680.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/30123ff9-87ce-4dbb-90a3-8192ba094757/87601120455.pdfIn PDF document text
    • https://s3.amazonaws.com/mupudipuvo/mufewet.pdfIn PDF document text
    • https://s3.amazonaws.com/lewuli/81550460356.pdfIn PDF document text
    • https://s3.amazonaws.com/lopadivupudexa/39372538141.pdfIn PDF document text
    • https://s3.amazonaws.com/sezutuma/tizidinapegipigama.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_off00004f72.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4F72 5612 bytes
SHA-256: e9e39a8a2b1e1568d0b6db55427223ae1dc4b9352e6540a57a6f33cbb1450f39
font_01_sfnt_off00006283.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6283 10032 bytes
SHA-256: 627128e9056be33398b1b9f62ee5806682916fce2d45c05fbb2bb80593a98705

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