Malicious PDF — malware analysis report

Static analysis result for SHA-256 01781991901bd054…

MALICIOUS

PDF

56.3 KB Created: 2020-08-14 19:06:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6a842d45c378d4c4f5793be83beda3ac SHA-1: 300d4cedd69be853fb9468f08f579c068e2cce29 SHA-256: 01781991901bd054d3d7d88b66009f738015f6681caa8d712e1cf0de50b7af16
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous embedded links, many pointing to what appears to be SEO-optimized content farms designed to host malicious files. One prominent link, 'https://ttraff.ru/pify?keyword=am+law+100+list+pdf', is flagged as a malicious redirector. The ML classifier strongly indicates maliciousness, and the overall structure suggests a phishing or malware distribution scheme.

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.ru/pify?keyword=am+law+100+list+pdf In PDF document text
    • http://vavikolog.communicationculturehealth.org/uploads/1/3/0/9/130969352/8fd9211d665e.pdfIn PDF document text
    • http://files.belezasidinginc.com/uploads/1/3/0/8/130814052/meguwuvoxime.pdfIn PDF document text
    • http://files.cwimconference.ca/uploads/1/3/0/8/130814195/xeguwanojaworif_sijazuwipu.pdfIn PDF document text
    • http://files.sacredsalontahoe.com/uploads/1/3/0/7/130775979/voxojonap.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/1/0438/8411/8171/files/mobop.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0993/1426/files/89624418379.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/xekugoxozeritazol.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/bijuwosozawubuvenokuzi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7819/6129/files/fagufomisiwitazafuviduzax.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7401/9740/files/87884954739.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5067/2033/files/widegeti.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2511/2988/files/40119079625.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1230/9670/files/gokomefid.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/7699/1653/files/towosaxutukusegis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8424/3351/files/zizexetubijuxuxosukefuta.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 5

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_off000090f5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x90F5 5368 bytes
SHA-256: 98fb339685d5c931b971f3d2bbd89fb46c96f9d2c46d02e6368fa56b7a953b50
font_01_sfnt_off0000a339.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA339 16020 bytes
SHA-256: 02cfc38cafc25b1239603158e6a838cdcf052d0a51053123177c8d51d63e3321

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