Malicious PDF — malware analysis report

Static analysis result for SHA-256 d2804a07600fc1de…

MALICIOUS

PDF

64.7 KB Created: 2021-02-24 16:00:37 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 0d3f7620a58b5d938bf5e78bd6f7c6b4 SHA-1: 50b52aae20c2f071437702adba9606d2b3916067 SHA-256: d2804a07600fc1de0911370f4fdc03d988616d8a14e3b4cbe8b152cdd91b638f
194 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://yafferge.ru/aws?utm_term=pratt+whitney+pt6+maintenance+manual In PDF document text
    • https://cdn.sqhk.co/wogefosa/5Jkgdhf/fofinuletuwalemawesejiker.pdfIn PDF document text
    • https://cdn.sqhk.co/woxemumi/hggx6jj/regal_cinemas_stock_graph.pdfIn PDF document text
    • https://cdn.sqhk.co/dutaxato/iimjajb/cross_stitch_dmc_thread_colors.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4416125/normal_6003239da0993.pdfIn PDF document text
    • https://cdn.sqhk.co/xororofomed/ihgggf3/ice_machine_repair_tampa.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4488102/normal_602602b1d7730.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4497650/normal_602d981ba5d65.pdfIn PDF document text
    • http://gepexoliv.medianewsonline.com/how_to_use_samsung_dishwasher_dw80r2031us.pdfIn PDF document text
    • https://cdn.sqhk.co/joduragenep/jii3gjs/bubble_drinks_near_me.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4405459/normal_602d690c3adf4.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/fajixe/4453119345.pdfIn PDF document text
    • https://s3.amazonaws.com/mefadedosuw/cuneiform_bone_fracture_x_ray.pdfIn PDF document text
    • https://s3.amazonaws.com/damerirazib/63676367525.pdfIn PDF document text
    • https://s3.amazonaws.com/jedobufudajewu/34201028400.pdfIn PDF document text
    • http://vibulowivez.epizy.com/chromebook_shortcuts.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_off0000bed7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBED7 5344 bytes
SHA-256: 8a1da364c554213b995bb00540c3ea89eabd035441572049d5828c6ec81e24a5
font_01_sfnt_off0000d0f3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD0F3 10896 bytes
SHA-256: c741b3186f09adc899ce904804558d3218df1209e9706c30a7b8592dfca3d1e4