Malicious PDF — malware analysis report

Static analysis result for SHA-256 25c8550e2c64a677…

MALICIOUS

PDF

48.7 KB Created: 2020-08-19 22:16:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 3e597c325e292c4021bf4272b6cd861d SHA-1: 2edd224ceb291240fa1d434a683e5a6449e48a05 SHA-256: 25c8550e2c64a677c6db453bdbc11d02ab2b8efc2c2350666f8d068bfb2f09e6
194 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.cc/pify?keyword=ms+word+flyer+template'. This indicates the document's primary purpose is to trick users into visiting a potentially harmful site. The document also contains a large number of external PDF links, many hosted on Shopify, suggesting a link farm or SEO manipulation tactic to obscure the 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=ms+word+flyer+template In PDF document text
    • http://kaxobex.manssonmarketing.com/uploads/1/3/2/3/132303079/pumeruvikorim.pdfIn PDF document text
    • http://files.sylvanherskowitz.com/uploads/1/3/0/9/130969148/8db092b2b749.pdfIn PDF document text
    • http://files.thetorigroup.com/uploads/1/3/0/8/130813869/62f108ef.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1511/7727/files/combinatorial_topology_alexandrov.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3088/8094/files/80435321740.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7854/1722/files/99302621045.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2180/2404/files/xazuposozudiza.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0517/4179/files/52083895110.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/0631/0046/files/6283873598.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2418/5506/files/vewagekefivimeb.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5145/0519/files/limajeweximo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0699/9203/files/10139874376.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/60359225188.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 3

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000737f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x737F 5020 bytes
SHA-256: 8434cfccaea6b805146d2d8ac297676f6b7dbe7dfabb7a462736b5156ed212a7
font_01_sfnt_off000084b3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x84B3 10400 bytes
SHA-256: dd9e4501a789f447182010c2c8ccce819562fb40ef2eb9a2be83622f297ab02f
font_02_sfnt_off0000a830.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA830 4324 bytes
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f

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