Malicious PDF — malware analysis report

Static analysis result for SHA-256 1bb108aceca00534…

MALICIOUS

PDF

43.4 KB Created: 2020-08-23 07:46:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 51029e7aa10489876c830f52e7b18d36 SHA-1: bccb4d048b3fd5877fbef6c3f605046f5641cced SHA-256: 1bb108aceca005341674b1b6ad7a5296ec95ee4b991226ec80f6af414ca39dc2
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.cc/pify?keyword=java+jre+1.+7++archive In PDF document text
    • http://files.4elements1.com/uploads/1/3/1/3/131380297/libala.pdfIn PDF document text
    • http://files.stockela.com/uploads/1/3/1/4/131407921/mudego-tobolaros-sotiref-ruxene.pdfIn PDF document text
    • http://files.jeffreyprimeaux.com/uploads/1/3/0/7/130739043/5528905.pdfIn PDF document text
    • http://kigeled.hectorsshop.com/uploads/1/3/1/3/131379833/fd7a75.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/8901/7497/files/pobonikogun.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2990/6079/files/vuxonosevipinadog.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5570/1398/files/zorakapepolakesebejewuboj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1002/1787/files/navuloxuxodeletasowon.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6371/3690/files/define_audio_visual_aids.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2553/0005/files/31794907553.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1204/6491/files/98454773611.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/sividejujim.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5144/1560/files/98904595548.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0070/9791/files/14034029037.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6458/1525/files/bunelovowenoxomave.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6535/1073/files/gejediwusarufufepusarilo.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_off000064e3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x64E3 4964 bytes
SHA-256: 90dd029b6b13664edbfcca4e3876604d0732f215a120a86806d733a38ee490fb
font_01_sfnt_off000075e0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x75E0 13660 bytes
SHA-256: 0046562ff12557e49d90a3744321c69d6f6229b722043f520018c9031025ec75

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