Malicious PDF — malware analysis report

Static analysis result for SHA-256 099ac572e2c00e64…

MALICIOUS

PDF

74.6 KB Created: 2021-02-25 12:04:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 1a28d47da2dce1bd969d569da8177dff SHA-1: 552834531476b6a3af48fd88bd173807cfd94eaa SHA-256: 099ac572e2c00e648f7e12eb8ebdb076ca446e905309dc3e5a486dfef5adb223
254 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://crophysi.ru/123?utm_term=best+lean+ux+book In PDF document text
    • https://duzigolanulemo.weebly.com/uploads/1/3/2/6/132680867/59d0b2d354.pdfIn PDF document text
    • http://vipadobotisituz.mygamesonline.org/rival_8706-new_6_quart_electric_ice_cream_maker.pdfIn PDF document text
    • https://jezemubo.weebly.com/uploads/1/3/6/0/136094449/e8d45cdb118c41d.pdfIn PDF document text
    • http://rumurel.mywebcommunity.org/tatifogutosafixusa.pdfIn PDF document text
    • https://texapusozos.weebly.com/uploads/1/3/1/4/131407592/megopex-wedafasarokad.pdfIn PDF document text
    • https://xitapazutirubej.weebly.com/uploads/1/3/4/8/134882608/purekejupuj.pdfIn PDF document text
    • https://zikagedatudupoz.weebly.com/uploads/1/3/4/2/134266226/jiwal.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/zufaxepixiguxax/free_dispersion_action_for_photoshop_cs6.pdfIn PDF document text
    • https://s3.amazonaws.com/fisulefajow/chrysler_grand_voyager_2001_service_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/lefemijip/13737305334.pdfIn PDF document text
    • https://s3.amazonaws.com/poguvelefa/48841567425.pdfIn PDF document text
    • https://s3.amazonaws.com/kugelilizibuwum/vofefosovediburiv.pdfIn PDF document text
    • https://s3.amazonaws.com/widiku/69627901383.pdfIn PDF document text
    • https://s3.amazonaws.com/nolarifaforuxop/calcolo_cemento_armato.pdfIn PDF document text
    • https://s3.amazonaws.com/minabiwa/65785225597.pdfIn PDF document text
    • https://s3.amazonaws.com/fedufiporara/sujowux.pdfIn PDF document text
    • https://s3.amazonaws.com/sefiwegegagu/jivoz.pdfIn PDF document text
    • https://s3.amazonaws.com/kubafezin/waco_texas_crime_report.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ea09.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEA09 4904 bytes
SHA-256: 1f5c62f9f5e0b97338834b3b7c301b23596a2b490bb896a6ba8be5296bf3d976
font_01_sfnt_off0000fad5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFAD5 10236 bytes
SHA-256: 8de4068ae660eb2ee3b98ab4117b2eae86a4361b59c03ab81929057426a821c6

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