Malicious PDF — malware analysis report

Static analysis result for SHA-256 5dd8b85e8868b442…

MALICIOUS

PDF

39.2 KB Created: 2020-08-24 20:04:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4753d9c15ea99d77374f0e1dafbb6306 SHA-1: 54d39636273f16663325b4dc636f9dd5afd3b74c SHA-256: 5dd8b85e8868b442fdad94dade09697f205d3c2a0735b362f93ad2940327ac72
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a link farm and a redirector URL, indicating a phishing or scam attempt. The embedded URLs and the document body suggest a lure for a 'corporate ownership structure template'. The ML classifier and critical heuristics strongly indicate malicious intent, likely to redirect users to malicious sites or download further payloads.

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=corporate+ownership+structure+template In PDF document text
    • http://jaketafa.hairymosquito.com/uploads/1/3/0/9/130969690/bofoz.pdfIn PDF document text
    • http://tawesu.theallinallministries.com/uploads/1/3/1/3/131380183/kokap.pdfIn PDF document text
    • http://files.roaming.studio/uploads/1/3/1/3/131383775/wikojisadoxutabuk.pdfIn PDF document text
    • http://tilopif.poloprague.com/uploads/1/3/1/6/131636664/saxarunos.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/1/0433/0687/7080/files/73470001672.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8249/0791/files/second_shift_arlie_hochschild.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0657/4240/files/preservation_of_archival_materials.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6678/5949/files/makkar_ielts_speaking_2020_download_september_to_december.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2004/1886/files/siwop.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2698/7680/files/fimutidoletotogesuji.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5663/5816/files/77146313655.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5078/5173/files/autoestima_definicion.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9201/6280/files/dukorusijebowapadapezipom.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_off00005e84.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E84 5172 bytes
SHA-256: dd281c58d590801c15c34ad3f0046ecc37621fb6bcbdd2e4b315c5d83b54a58b
font_01_sfnt_off00006ff3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6FF3 9452 bytes
SHA-256: a3cd717a2ee8be8bfbaebe6d5caf4a5afb292f17e0ce8d300b22328f82bfcdd9

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