Malicious PDF — malware analysis report

Static analysis result for SHA-256 22598e292dd3ddbb…

MALICIOUS

PDF

41.3 KB Created: 2020-08-24 05:56:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 531cb8d1791771900049153deb544f47 SHA-1: d3a400ff76215d7319ec250394828e0f673c25b3 SHA-256: 22598e292dd3ddbb4367967eef80e0034a7577ac7e68a70d99aa9681635a1566
194 Risk Score

Malware Insights

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

The PDF file contains a link farm and a specific URL that points to a known malicious redirector. The document body, though heavily obfuscated, contains text related to a 'Dallas county clerk assumed name form' and the malicious URL, suggesting a phishing lure. The presence of numerous external links, many hosted on Shopify, indicates a link farm designed to obscure the ultimate destination. The primary malicious URL is https://ttraff.cc/pify?keyword=dallas+county+clerk+assumed+name+form, which is flagged as a malicious redirector.

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=dallas+county+clerk+assumed+name+form In PDF document text
    • http://files.wellnesspluscharleston.com/uploads/1/3/1/3/131380493/9925352.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/1/0431/0210/9856/files/74010480289.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5720/9753/files/ffxiv_blacksmith_leveling_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9227/9445/files/worcester_24cdi_combi_boiler_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0448/6601/1298/files/phylum_hemichordata.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6877/5841/files/brain_gym_teacher_s_edition_revised_2020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0448/3537/3213/files/aosp_extended_launcher_apk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6422/2101/files/formato_de_certificado_de_preparatoria.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0451/5568/0410/files/exercices_orthographe_ce2.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0080/7070/files/mobutezuvusulozizif.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0993/1424/files/17524224797.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6623/7852/files/xadoxovopeduronikuwoxa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9058/3464/files/kowoto.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 1

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_off00006225.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6225 5332 bytes
SHA-256: a7b0b72e267919db86df80da38eaf3f04e391ab5e985b42d8d279d81cf0b4aff
font_01_sfnt_off0000743b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x743B 10592 bytes
SHA-256: 9e93507ea76806d80c1096d0498f749e0a461f9ffb1f7b437095a39435f04755

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