Malicious PDF — malware analysis report

Static analysis result for SHA-256 6768dcd4e95ebebe…

MALICIOUS

PDF

45.0 KB Created: 2020-10-28 15:49:42 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-16
MD5: 1d5dfd0d5c2b993fb0bc66f2cc6bf10b SHA-1: e8821796bb2366d5287f9b7b9d3648031da2985c SHA-256: 6768dcd4e95ebebe8e5eef47ed3a9aa57bfd84a46f4abd77716593bcc0a8c0b5
154 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains embedded links that redirect to known malicious infrastructure, specifically a URL containing 'ttraff.me' and a link farm of other PDFs. The document body, though heavily obfuscated, contains a URL that appears to be part of the lure. The presence of numerous external PDF links suggests an attempt to distribute further malicious content or engage in SEO manipulation for malicious purposes.

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://ttraff.me/123?keyword=unblocked+everything+pokemon In PDF document text
    • https://risimapi.weebly.com/uploads/1/3/4/3/134321435/wagozoriludetatajo.pdfIn PDF document text
    • https://winomumamo.weebly.com/uploads/1/3/1/0/131070375/dawam_dalexiveba_xasatujivawo_warefozi.pdfIn PDF document text
    • https://bebamewikirebu.weebly.com/uploads/1/3/0/8/130874540/140ee7bea4786c7.pdfIn PDF document text
    • https://xibogunef.weebly.com/uploads/1/3/1/3/131398295/rilumokoguwa-natovuja.pdfIn PDF document text
    • https://rajomiluti.weebly.com/uploads/1/3/2/6/132682989/4499465.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/9f92fb2a-4d30-42ec-9d8f-a1c0602c1884/lorebapafiwavakineka.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6838/1591/files/12297677680.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9231/1206/files/download_comic_time_reader_apk.pdfIn PDF document text
    • https://s3.amazonaws.com/jefobexapulow/bachelor_thesis.pdfIn PDF document text
    • https://s3.amazonaws.com/palikuvexake/yajur_veda_mantras_tamil.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4ff7f0e0-c496-4aa1-90b9-046d69ad856a/descargar_libros_sobre_lenguaje_corp.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0484/0541/4045/files/google_drive_apk_android.pdfIn PDF document text
    • https://s3.amazonaws.com/felasorarabipis/50205616479.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0485/9910/5701/files/open_country_dehydrator_bananas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8856/7706/files/37525145985.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0497/9094/3381/files/80386516341.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0499/2060/6360/files/wopaligogopilorit.pdfIn PDF document text
    • https://s3.amazonaws.com/kibavutibeved/anemia_hemolitica_en_el_recien_nacido.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0495/6520/4636/files/57440906022.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_off00006eaf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6EAF 5456 bytes
SHA-256: f38a43bd1b8a2656f1c4d806502e5535bbaaee041bed550ede03e415993949cf
font_01_sfnt_off00008126.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8126 11132 bytes
SHA-256: 29ed6ad24e1ba8cd5bc8879c8405fa1e69a3560820325e8a1d8e6f18e60e3bd5

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