Malicious PDF — malware analysis report

Static analysis result for SHA-256 974e79609b2daae2…

MALICIOUS

PDF

69.0 KB Created: 2020-07-27 18:51:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: bf48c598c9f3b624f7c625633a901391 SHA-1: b04f3929fd358022d1750bc04e1af6744742a26b SHA-256: 974e79609b2daae293613c5a26d2e83cfdc296d21d074dc97a4cbed2938465ff
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains numerous links, including one pointing to a known malicious redirector at 'ttraff.com'. The document body, though heavily obfuscated, suggests a lure related to 'parasites'. The heuristic firings indicate the PDF is designed to redirect users to malicious infrastructure, likely as part of a phishing or malware distribution campaign.

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/wb?keyword=par%C3%A1sitos%20intestinales%20pdf In PDF document text
    • http://files.sastinson.com/uploads/1/3/1/4/131452867/d434e0b887604.pdfIn PDF document text
    • http://files.deepintheheartcrafting.com/uploads/1/3/2/6/132682542/jovegozarubite.pdfIn PDF document text
    • http://files.juliehoy.com/uploads/1/3/2/6/132682048/womevobewe.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/1/0431/6617/1285/files/99474823277.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5221/1099/files/57626249404.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3651/5224/files/57751604345.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3236/3676/files/wipobimubomaxaka.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/zijilo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5928/1061/files/rejexamutobozodor.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7036/5602/files/13150786737.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1238/1079/files/83722358347.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1370/9730/files/weduw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5123/7022/files/71934205230.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4599/4146/files/15528676564.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_off0000d062.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD062 5060 bytes
SHA-256: 96dc1fe9465951f29803c68c2dd3acb87af4f289e995700a3377c95eea1bad96
font_01_sfnt_off0000e107.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE107 11000 bytes
SHA-256: 38bafcbc93b6dbd199b6c8e401f13159eaf197056f9a325f3b9ebc6095fa7c93

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