Malicious PDF — malware analysis report

Static analysis result for SHA-256 5293dcc5c7553471…

MALICIOUS

PDF

41.7 KB Created: 2020-11-04 15:25:00 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-02
MD5: 9bed474d5a786dc31c79c805e65b27b2 SHA-1: d2d1077df84497deaff852ac7b9b3702c6273a2e SHA-256: 5293dcc5c75534715c9a0d4b228faf6c1b328696867742727183a784047f972f
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://gettraff.ru/strik?keyword=opera+omnia+tier+list In PDF document text
    • https://pitimonajavigo.weebly.com/uploads/1/3/1/3/131383860/7657470.pdfIn PDF document text
    • https://vuxozajuje.weebly.com/uploads/1/3/1/3/131379873/9653445.pdfIn PDF document text
    • https://gafanotode.weebly.com/uploads/1/3/4/5/134576189/ec9080728b515e.pdfIn PDF document text
    • https://babikovinemixe.weebly.com/uploads/1/3/1/8/131856339/1925348.pdfIn PDF document text
    • https://dujopoda.weebly.com/uploads/1/3/0/7/130739119/wikox_wabufaxu_negasekevef_lofavoxowoxiv.pdfIn PDF document text
    • https://vugilove.weebly.com/uploads/1/3/4/2/134234765/liwumolopo-nilisiwod.pdfIn PDF document text
    • https://kivofijola.weebly.com/uploads/1/3/4/3/134309380/3223779.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/vukusa/48431226359.pdfIn PDF document text
    • https://s3.amazonaws.com/remufuzu/sorakuwefajuvajinulibo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ad50f4c0-53d1-49df-a0e9-bf1119a9fa55/tuboziponomur.pdfIn PDF document text
    • https://s3.amazonaws.com/fizaxo/differences_between_assessment_and_evaluation.pdfIn PDF document text
    • https://s3.amazonaws.com/webipejonavuv/66626398536.pdfIn PDF document text
    • https://s3.amazonaws.com/vatakefojunib/rcp_wall_thickness_hanson.pdfIn PDF document text
    • https://s3.amazonaws.com/falufusu/33744125086.pdfIn PDF document text
    • https://s3.amazonaws.com/lijopavexanuse/widemepimetoxok.pdfIn PDF document text
    • https://s3.amazonaws.com/salosibejodod/anime_like_toradora_dubbed.pdfIn PDF document text
    • https://s3.amazonaws.com/gadumagabusodel/96167377344.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_off000063e9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x63E9 4992 bytes
SHA-256: f2e2dc6e728d21fe3fe0e95f69312c719d7c709674baf5b7332842f5bf0c1111
font_01_sfnt_off000074c4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x74C4 11040 bytes
SHA-256: 213641c2bc31e2a30ceba972c5cc6e36e07c220f58bc9a285282b0590218786b

Open this report in the interactive analyzer, or submit your own file for analysis.