Malicious PDF — malware analysis report

Static analysis result for SHA-256 3b34dba2a2dad7ed…

MALICIOUS

PDF

45.8 KB Created: 2020-10-08 09:31:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-17
MD5: 6483b335a0e81bcb6acce19bc1cee6e7 SHA-1: db38c251e86772c16bd2e947e62bb2b6696625d1 SHA-256: 3b34dba2a2dad7edccdaad0e5fe9b47e486c93f51d605c423ab8719b2414df83
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://ttraff.link/pify?keyword=hotspot+shield+vpn+elite+apk+full+crack In PDF document text
    • https://site-1038770.mozfiles.com/files/1038770/2214425922.pdfIn PDF document text
    • https://site-1039661.mozfiles.com/files/1039661/sonowero.pdfIn PDF document text
    • https://site-1048574.mozfiles.com/files/1048574/josazaper.pdfIn PDF document text
    • https://site-1042100.mozfiles.com/files/1042100/20755492752.pdfIn PDF document text
    • https://site-1037251.mozfiles.com/files/1037251/78712290053.pdfIn PDF document text
    • http://files.lakeshoreacademy.org/uploads/1/3/2/6/132681536/vosoru.pdfIn PDF document text
    • http://wagidoke.agnesherczeg.com/uploads/1/3/0/7/130775181/mumebosemam.pdfIn PDF document text
    • http://files.ryangardnerjewelry.com/uploads/1/3/1/6/131606789/9161699.pdfIn PDF document text
    • http://giwata.stellarlanes.ca/uploads/1/3/1/4/131483128/zemib.pdfIn PDF document text
    • http://files.glp-lawyers.com/uploads/1/3/2/8/132815008/jiwovemesijeta.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/2bf57d58-0485-4c73-aa81-aa8c2f4e5d72/ditibeji.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0487/9797/4693/files/bye_bye_foundation_powder.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0457/4425/9228/files/12364704598.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0500/2054/8758/files/wafokibivuwexarasex.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3165/6605/files/what_is_the_factor_label_method.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0494/3049/5399/files/my_strange_hero_kdrama_download.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006bcd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6BCD 5328 bytes
SHA-256: f889b12412b11536fb9f42b6bb8be11b3ca35c586e8f80186114bbee88b97b0b
font_01_sfnt_off00007de2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7DE2 1800 bytes
SHA-256: daad3f347a4f42f432ee9983e619a7c063e36761dba5934b469418034847e28e
font_02_sfnt_off00008670.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8670 10352 bytes
SHA-256: 949cafc8ac7d9003973f98b949d61311841cab54f85cb707c2fdb27b1d352c5f

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