Malicious PDF — malware analysis report

Static analysis result for SHA-256 456b6006b38f495e…

MALICIOUS

PDF

39.6 KB Created: 2020-11-03 10:14:33 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-01-23
MD5: b52aa57dc055b6762897b6e14d5dd712 SHA-1: dca1799dbd7181cbd79783fb3ce6e0c593589a25 SHA-256: 456b6006b38f495ee3f3a0cfacc4f3029dda8a49aa57630e845b8fedd07c3ad8
134 Risk Score

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.
  • 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://gettraff.ru/aws?keyword=walter+m+kennedy+pell+city+al In PDF document text
    • https://pesodubebugi.weebly.com/uploads/1/3/4/2/134234841/611053.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5289/1298/files/lolodibixawalipizezojajod.pdfIn PDF document text
    • https://s3.amazonaws.com/bevekizadoxuj/zatetusajek.pdfIn PDF document text
    • https://s3.amazonaws.com/somamere/schlitterbahn_new_braunfels_tickets_prices.pdfIn PDF document text
    • https://s3.amazonaws.com/nawosineromigi/jowuxikezobilom.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0483/9191/3632/files/urine_therapy_testimonials_hiv.pdfIn PDF document text
    • https://s3.amazonaws.com/tamobalasu/probability_statistics_and_queuing_theory_download.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0fbff35f-7047-4583-a613-5d9c5eae17fd/dojetat.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5399/6442/files/glowing_putty_gels__slime_kit_instructions.pdfIn PDF document text
    • https://s3.amazonaws.com/retobifulipo/go_math_grade_4_answer_key_chapter_10.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004e4d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4E4D 4900 bytes
SHA-256: bc322885567ae05a8a41f9b959b56b54163ef9cdfaa36bb030c9a2261a105689
font_01_sfnt_off00005ee2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5EE2 10732 bytes
SHA-256: a1e1b3a47a98b969976bc2262b5acbc8ea1da87aa8c2423e4be5dc6824aa129e
font_02_sfnt_off000083a8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x83A8 4324 bytes
SHA-256: d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378