Malicious PDF — malware analysis report

Static analysis result for SHA-256 f8b13ca92ad8fa21…

MALICIOUS

PDF

44.9 KB Created: 2020-08-05 03:30:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a01ce42733557c9c9a523d53ec987d8c SHA-1: 0fb4f57b4d0123d0c98d5bd3847449caee8c2e99 SHA-256: f8b13ca92ad8fa219e45edc22fff81463d519d015f61c99d169a5ac72052c598
194 Risk Score

Malware Insights

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

The PDF contains a link that redirects to malicious infrastructure, as indicated by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body, though heavily obfuscated, contains text related to a '2020 kia sedona manual pdf' and the malicious URL. The PDF_SEO_LINK_FARM heuristic suggests the PDF is part of a larger link farm, likely for SEO manipulation or to distribute malicious links.

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=2020+kia+sedona+manual+pdf In PDF document text
    • http://files.romboproductions.com/uploads/1/3/1/4/131452922/dovamogozegukuw_dilitutewono_masedor_jaxafenebuke.pdfIn PDF document text
    • http://files.ipcest.com/uploads/1/3/1/6/131636825/nedak.pdfIn PDF document text
    • http://foweneva.texxinternational.com/uploads/1/3/1/4/131406717/2464103.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/1/0430/3123/2675/files/koxabitisurobaleruded.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0311/5680/files/wejifape.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3093/6733/files/77056964297.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8857/5638/files/biodata_hd.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2353/1158/files/garafekagiwex.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5287/5424/files/vinelusabizomibapitite.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7006/2754/files/89007190733.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5392/4004/files/pifirum.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6482/8838/files/8919923855.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4756/7010/files/pmbok_guide_5th_edition_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9946/2558/files/14817839730.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8812/5857/files/8603224946.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7421/4306/files/adjudication_process.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_off0000662c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x662C 5332 bytes
SHA-256: dd478d54a9512ca3eb8adcc9b16792696f0976f1a0ae9a1bf1b0ab64a8389129
font_01_sfnt_off0000783f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x783F 14196 bytes
SHA-256: 6df6d5dfeb5b7a0c1111d4eefb8fc62237d78e661a5c18397c55f4239617df1b