Malicious PDF — malware analysis report

Static analysis result for SHA-256 7fe09b49a3ea00d0…

MALICIOUS

PDF

42.1 KB Created: 2020-08-21 16:01:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-17
MD5: 8a8912130cb16b26a92290673a7629f5 SHA-1: 674573a1f9a1079d019fbc6774c5b9f68f6e919a SHA-256: 7fe09b49a3ea00d0a83c05d6740f030d3c410778ecd8eea705ade29cd5d72fbd
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.com/pify?keyword=angularjs+template+inject+html In PDF document text
    • http://files.bearlakecounty.info/uploads/1/3/1/8/131856158/3b151aa.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/1/0432/2213/9041/files/butopulemofebeg.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7537/0136/files/98912556557.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8361/9736/files/xupotovomunewupezog.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8507/8423/files/53072767784.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7346/1669/files/zugajawinodulilosudetiti.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0193/0143/files/bd_bank_job_book.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7909/0855/files/smoothie_recipe_for_weight_loss.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0462/4872/2583/files/25666427746.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5646/3014/files/wobamusili.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/fapodepemiretewuroraga.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/9843/7784/files/certificate_design_template_word.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0881/0398/files/99174573901.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/72619586694.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 5

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005a66.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5A66 5412 bytes
SHA-256: 667d867806093cb363b474970c0f5146cdc631bf54116787ff018865aa906521
font_01_sfnt_off00006ca5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6CA5 15040 bytes
SHA-256: bfc6a1d08fc5b91ceddf17f335d6ade41b83f153c2ad1c56bb3cf286db6b9e06

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