Malicious PDF — malware analysis report

Static analysis result for SHA-256 bd5be954560f33f0…

MALICIOUS

PDF

59.9 KB Created: 2020-11-09 04:05:00 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-01-23
MD5: 7d5bc9655efe84193eedf2a75447eabc SHA-1: 6e53ca3cd2e3028ea06afe864a12f69a88c33f0d SHA-256: bd5be954560f33f0e3143a9fcf41addc96c2c05c2f7690a51c6a5dded21744cf
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://traffking.ru/aws?keyword=elms+golf+course+massillon In PDF document text
    • https://zunenora.weebly.com/uploads/1/3/4/7/134713213/pafodumowaj.pdfIn PDF document text
    • https://puxolulif.weebly.com/uploads/1/3/4/3/134356270/4558364.pdfIn PDF document text
    • https://lokixesope.weebly.com/uploads/1/3/1/6/131607163/593ed135.pdfIn PDF document text
    • https://folemazilepi.weebly.com/uploads/1/3/1/1/131164248/daganuke-mewodubelufib.pdfIn PDF document text
    • https://tilobumofiraji.weebly.com/uploads/1/3/4/4/134492377/juwutojevixoz.pdfIn PDF document text
    • https://fuparududewon.weebly.com/uploads/1/3/1/8/131856041/rilalivolemo-gijaka-zanukupajusu.pdfIn PDF document text
    • https://temazojirilezin.weebly.com/uploads/1/3/2/3/132302863/8993817.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/8888f3ea-8b08-4e35-955c-3ad8bf29295d/83400291220.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1751f080-b035-4078-ac9d-0332211d96b5/gorexumixes.pdfIn PDF document text
    • https://japizofupof.files.wordpress.com/2020/11/31080887476.pdfIn PDF document text
    • https://s3.amazonaws.com/voxulija/somapunewutijotade.pdfIn PDF document text
    • https://s3.amazonaws.com/kudowo/all_pet_locations_of_pets_in_castle_crashers.pdfIn PDF document text
    • https://s3.amazonaws.com/kavitokolezub/el_autoestima_libros.pdfIn PDF document text
    • https://s3.amazonaws.com/tofizo/spotify_premium_apk_para_pc_2019.pdfIn PDF document text
    • https://s3.amazonaws.com/gebukil/clinton_animal_hospital_clinton_md.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://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_007_off0000b140.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0xB140 26304 bytes
SHA-256: 576ccf4abfdbfa88908deb1ddb12032f6eeba1a4ac20f394cb216a85f5b4e361
font_00_sfnt_off00006e4c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E4C 5160 bytes
SHA-256: 66daee3c7e809e82e656b268dd9933f14332699ff920fd8c688d43933c167126
font_01_sfnt_off00007fc0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7FC0 3256 bytes
SHA-256: 686593f43dcb645917a33134eed3b118f6a0c8a24ef4fbc81f8105adaa80de4d
font_02_sfnt_off00008cfc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8CFC 10488 bytes
SHA-256: b653618ce16d2b11a225d0406fffbb6eca302e19823cd3324203256255697ab4

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