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)
MD5: a01ce42733557c9c9a523d53ec987d8c SHA-1: 0fb4f57b4d0123d0c98d5bd3847449caee8c2e99 SHA-256: f8b13ca92ad8fa219e45edc22fff81463d519d015f61c99d169a5ac72052c598
150 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 3

  • 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.
  • 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
    • http://files.romboproductions.com/uploads/1/3/1/4/131452922/dovamogozegukuw_dilitutewono_masedor_jaxafenebuke.pdf
    • http://files.ipcest.com/uploads/1/3/1/6/131636825/nedak.pdf
    • http://foweneva.texxinternational.com/uploads/1/3/1/4/131406717/2464103.pdf
    • https://cdn.shopify.com/s/files/1/0430/3123/2675/files/koxabitisurobaleruded.pdf
    • https://cdn.shopify.com/s/files/1/0438/0311/5680/files/wejifape.pdf
    • https://cdn.shopify.com/s/files/1/0434/3093/6733/files/77056964297.pdf
    • https://cdn.shopify.com/s/files/1/0434/8857/5638/files/biodata_hd.pdf
    • https://cdn.shopify.com/s/files/1/0434/2353/1158/files/garafekagiwex.pdf
    • https://cdn.shopify.com/s/files/1/0432/5287/5424/files/vinelusabizomibapitite.pdf
    • https://cdn.shopify.com/s/files/1/0430/7006/2754/files/89007190733.pdf
    • https://cdn.shopify.com/s/files/1/0432/5392/4004/files/pifirum.pdf
    • https://cdn.shopify.com/s/files/1/0427/6482/8838/files/8919923855.pdf
    • https://cdn.shopify.com/s/files/1/0432/4756/7010/files/pmbok_guide_5th_edition_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0435/9946/2558/files/14817839730.pdf
    • https://cdn.shopify.com/s/files/1/0431/8812/5857/files/8603224946.pdf
    • https://cdn.shopify.com/s/files/1/0437/7421/4306/files/adjudication_process.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000662c.bin
dd478d54a9512ca3eb8adcc9b16792696f0976f1a0ae9a1bf1b0ab64a8389129		 pdf-font-stream PDF embedded font (sfnt) at offset 0x662C 5332 bytes
font_01_sfnt_off0000783f.bin
6df6d5dfeb5b7a0c1111d4eefb8fc62237d78e661a5c18397c55f4239617df1b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x783F 14196 bytes

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