Malicious PDF — malware analysis report

Static analysis result for SHA-256 ac026f4b22935545…

MALICIOUS

PDF

40.9 KB Created: 2020-09-17 04:28:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 8ea5d64f89f8278ac4fb377ab3e003f0 SHA-1: 2c04d71ee67c6256cf8066218f116cc4e320698b SHA-256: ac026f4b22935545eb3d8bedf62e7da52423b86ff28c96d0a739f127df14b782
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a significant number of embedded links, with at least one identified as a malicious redirector. The heuristic 'PDF_SEO_LINK_FARM' indicates a mass of external PDF links, suggesting a link farm or SEO manipulation tactic. The presence of a link to 'ttraff.link' further supports the malicious intent, likely to redirect users to further malicious content or phishing pages.

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/wix?keyword=la+leyenda+de+korra+netflix+mexico In PDF document text
    • http://files.veenalifestyle.com.au/uploads/1/3/0/7/130739101/xekububumezogefi.pdfIn PDF document text
    • http://files.ajreisingerlab.com/uploads/1/3/0/7/130739232/jesizezutalumoremo.pdfIn PDF document text
    • http://befovu.dralisonpt.com/uploads/1/3/1/4/131406352/4de741ef8.pdfIn PDF document text
    • http://files.econatura.com/uploads/1/3/2/6/132681342/tabebisovixij_renuposeranibe_balekazoxuzeviz.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://144fcd81-ccb7-4fca-bd99-bb7f0f97e718.filesusr.com/ugd/9d869b_66a04f540b9c44f18e98794422edc97f.pdf?index=trueIn PDF document text
    • https://741186c2-acb8-4415-b86d-7f3f35c83dfe.filesusr.com/ugd/b1b3ad_6471db8d35e142d3a2f03983573f15fb.pdf?index=trueIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1151/3252/files/malayalam_kambi_kathakal_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/0034/6270/files/de_estrella_de_las_botas_metra_surik.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9159/0308/files/tuvazularesilolisevi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0486/2348/5096/files/6597065454.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3890/7288/files/42667912106.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/9034/9975/files/gantt_chart_template_with_dates.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5778/3718/files/ajuste_de_reacciones_quimicas_ejercicios_resueltos_2_eso.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5930/5880/files/rifijinilevisevokuposag.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006138.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6138 5164 bytes
SHA-256: 9d0ef7b2e7839dd1eb163d2a08f0b75e3ce193cbd5ee39845cba11a965e899fd
font_01_sfnt_off000072cb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x72CB 10400 bytes
SHA-256: 24015934c7ca32d9ccb72e2b9b48ad970038d102066cdb5615ef8c14a9f75f0c

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