Malicious PDF — malware analysis report

Static analysis result for SHA-256 22273020e1d1519f…

MALICIOUS

PDF

44.9 KB Created: 2020-09-10 12:01:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e572d340cb2e8c47bf3311fe1bd8f5b9 SHA-1: a05f2d8df0b6f6b351f0db7f3ca98053591b09fd SHA-256: 22273020e1d1519f694af3eaa1aa68a18610d1234231fec25f0cf0ab514010e6
194 Risk Score

Malware Insights

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

The PDF contains a high density of external links, many pointing to SEO-optimized PDF hosting sites, indicating a link farm or redirection strategy. The primary link, 'https://ttraff.link/wix?keyword=background+images+for+photoshop+cs6', is identified as a malicious redirector, suggesting the document's purpose is to lead users to malicious content. The ML classifier strongly supports the malicious nature of this PDF.

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.link/wix?keyword=background+images+for+photoshop+cs6 In PDF document text
    • http://files.zhanglabunl.org/uploads/1/3/1/6/131606630/moxaperimepulojusob.pdfIn PDF document text
    • http://files.victoriamossremoval.com/uploads/1/3/0/7/130738875/241ed5155d24.pdfIn PDF document text
    • http://files.chemotherapyresource.com/uploads/1/3/1/4/131453496/53a8c.pdfIn PDF document text
    • http://files.lyndahiggsphotography.com/uploads/1/3/1/4/131437322/1c28b9d98a.pdfIn PDF document text
    • http://vubop.aprilfairbrother.com/uploads/1/3/1/4/131438640/wipedijagaruvez_xodexitaki_velikitukokud_nezedi.pdfIn PDF document text
    • http://rasefotij.drjamesworling.net/uploads/1/3/0/7/130738714/18a9850ec016.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/1/0428/9835/8432/files/zenafepejeviwasi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3557/3919/files/20005992795.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2614/4670/files/swot_form_word.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/d4579c_d6e871f16d7c4825b6f5f03769bf878e.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/01e791_b8f9359e96d946d7a345ab52ab379bbe.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/9a242c_ffec6b39465b4d79bca2a7b6fa8f19e1.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/78daac_77b1ac894d26441583715f3cbe228fa7.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 8

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_off00005a15.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5A15 5804 bytes
SHA-256: 8303402bd3855af4c1706cf8e7db2c9909e93b07c2104e29fa6dae23970d263b
font_01_sfnt_off00006db8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6DB8 10208 bytes
SHA-256: 6f1d614ddd0f1abe74a90402392d8c5227f1cc1ca674afad399ba8e53747c2da
font_02_sfnt_off000090cc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x90CC 16388 bytes
SHA-256: 4189bb5d82d37c3b06c761c00ca3b3c8a7a7312639514cd6a20481e76712d457

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