Malicious PDF — malware analysis report

Static analysis result for SHA-256 de2b49ea64aaf986…

MALICIOUS

PDF

40.0 KB Created: 2020-08-12 18:12:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 656f81f5ebff1ee59472238c18558a79 SHA-1: b9ecb17cc7f465b23bddd66f2d7118c63ed26470 SHA-256: de2b49ea64aaf98631a9e42801b37871879b4eb629a2b9d8639f4b00977dd0d9
194 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to suspicious domains. One critical heuristic identified a link to a known malicious redirector infrastructure. The document body, though heavily obfuscated, contains a URL that appears to be the primary lure, directing users to 'https://ttraff.com/pify?keyword=cathy+o+brien+transformation+of+america+pdf'. This suggests the document's purpose is to redirect users to malicious content.

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=cathy+o+brien+transformation+of+america+pdf In PDF document text
    • http://rusifuzez.opalthestabyhoun.com/uploads/1/3/1/3/131383664/0edead199.pdfIn PDF document text
    • http://tajuv.drdavidmilanovich.com/uploads/1/3/1/6/131606289/dccfc5.pdfIn PDF document text
    • http://radon.oldfieldtubeamps.com/uploads/1/3/2/6/132681862/wutafosixiguvuw.pdfIn PDF document text
    • http://files.ormansite.com/uploads/1/3/0/7/130775362/tarov-reriluzaniv.pdfIn PDF document text
    • http://tubokobe.musicianarchive.com/uploads/1/3/0/9/130969953/668de39cc.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/1/0428/9540/9311/files/94884647836.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/jegatakufiritejat.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6818/6015/files/can_you_be_tracked_with_a_vpn.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9495/0556/files/gadom.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8068/7520/files/vewulozavi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3990/6197/files/gavedegikapiwugorugefa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1778/0896/files/18846675217.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3193/6674/files/11430272290.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7758/0453/files/cardinal_vowel_system.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/4162/6011/files/log_and_antilog_table_file.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 2

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_off00005d97.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5D97 5512 bytes
SHA-256: 7b265cb9785921d26fb18f0a452992db90433257dcf3ecaf3302eb1b21817fdf
font_01_sfnt_off00007028.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7028 10276 bytes
SHA-256: 83f4ccead0db8a003191b1da4a3ba4aea192f44e7b57dbbd4e4f39fdae57d566

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