Malicious PDF — malware analysis report

Static analysis result for SHA-256 45338120025b9415…

MALICIOUS

PDF

47.2 KB Created: 2020-08-20 08:49:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ff72d2a7a8b3496963f85fd42ca707f9 SHA-1: ef4ac2cdbf49e948b0c1d4559a0978e9197bd264 SHA-256: 45338120025b94155e24aac209cb6663612dfa3b831d716649828128a46ce571
194 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/pify?keyword=seismic+unix+file+format'. Additionally, it exhibits a PDF link farm pattern, with numerous external links, many hosted on cdn.shopify.com. The document body, though heavily obfuscated, contains references to the malicious URL and a benign-looking PDF filename, suggesting a lure to trick users into clicking the malicious link.

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=seismic+unix+file+format In PDF document text
    • http://files.westtxwinetours.com/uploads/1/3/0/8/130874030/jokuribajemevoxe.pdfIn PDF document text
    • http://files.texastechhumanfactors.com/uploads/1/3/1/4/131406885/topoxu.pdfIn PDF document text
    • http://tozenagim.whatthefluffstore.com/uploads/1/3/1/8/131858530/pidenove-linaximevot.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/1/0436/0785/1171/files/7567070882.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/vazakiliduvapi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0454/1726/7368/files/sec_cert_format.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9430/2117/files/xuminufunexulunejimop.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0996/4192/files/mobitiraxelosigotaluba.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4442/1282/files/93938835533.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/tokon.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8695/4140/files/22743297518.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0450/2552/5918/files/population_du_cameroun_2020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7294/5304/files/31383995731.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1646/2229/files/54696384040.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3043/6247/files/86365838973.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_off0000719e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x719E 5200 bytes
SHA-256: 1569be0ce28a82571c43e7bd2fb5f1f571afd9e3f6720cd45defca0ba17fb0a2
font_01_sfnt_off00008330.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8330 14216 bytes
SHA-256: e39f3effbca5fd057f5ea54060aa77c04867bcfb9c12486e5d97ca811219ef0f

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