Malicious PDF — malware analysis report

Static analysis result for SHA-256 2334bafac07f0877…

MALICIOUS

PDF

37.9 KB Created: 2020-08-04 01:29:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c6860dedbd886b2023566457da322282 SHA-1: f6ebc7f880429d2da29cbc7f8cfd605ed1d807f5 SHA-256: 2334bafac07f0877f7e85ddaa232dbfe78f2ee62718c49035ae86d419678e3f4
194 Risk Score

Malware Insights

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

The PDF contains a link that redirects to a malicious URL, disguised as a free download for a popular book. This is further supported by heuristics indicating a malicious redirector link and a PDF link farm, suggesting an attempt to drive traffic to potentially malicious content. The document body contains text related to the search query and the redirector URL, reinforcing the lure.

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.com/pify?keyword=the+righteous+mind+pdf+free+download In PDF document text
    • http://files.texasbestbrushes.com/uploads/1/3/1/4/131437306/38dba0aabd20.pdfIn PDF document text
    • http://files.bsbdemocrats.org/uploads/1/3/1/1/131164398/wexukegeba-jitazofogu-kozetujojosu-gifukizetero.pdfIn PDF document text
    • http://files.mydiyplace.com/uploads/1/3/0/7/130739883/b630d4e00f.pdfIn PDF document text
    • http://files.theriversedgeranch.org/uploads/1/3/2/6/132695668/monitogusufoxale.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/1/0437/7749/1098/files/89489721805.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9957/8773/files/kibofedinolekelefutobil.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3583/6059/files/sadolemukinuvikinawumi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0130/6526/files/dokizujibuvuzadaxapap.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4405/9806/files/36079332054.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2666/8952/files/ropako.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9866/9220/files/32750887673.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5473/4241/files/67258598920.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5318/7221/files/ziwetuvavarevunep.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9496/6436/files/56860964219.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_off00005391.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5391 5496 bytes
SHA-256: 3240e0593a37be704db65006b89a2c2d5a5ec6ea517e8f00a1c939526485a3f2
font_01_sfnt_off0000662a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x662A 10248 bytes
SHA-256: 5f62cb048f10a264e2623eae4024e81e6aff7fd1b074c3e577d15d0002c4b663

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