Malicious PDF — malware analysis report

Static analysis result for SHA-256 07a3b9f3a1d2bd5d…

MALICIOUS

PDF

39.8 KB Created: 2020-08-04 18:05:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 8deb091f7f76b6a4ac57e48526f111ce SHA-1: 3ab99bda80a894c4d2e3cd133464067f15bb3e7e SHA-256: 07a3b9f3a1d2bd5d46f86244e66edd84fa911f479cf015b603b8206b2a33bce1
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, many of which point to a redirector service (ttraff.com) that is flagged as malicious. The document body, though heavily obfuscated, contains text related to 'A4 business card template pdf' and a URL that appears to be part of a link farm designed to attract users. The ML classifier strongly indicates maliciousness, and the heuristic firings confirm the presence of malicious redirector links and a link farm.

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.com/pify?keyword=a4+business+card+template+pdf In PDF document text
    • http://files.chemungfire.com/uploads/1/3/1/3/131382696/vevedutepipu.pdfIn PDF document text
    • http://files.fumcsaranaclake.org/uploads/1/3/0/7/130739835/fekijini.pdfIn PDF document text
    • http://files.socialsolutions4autism.com/uploads/1/3/1/3/131383045/d68ea142f2e99a0.pdfIn PDF document text
    • http://files.southashlandumc.org/uploads/1/3/1/8/131858287/771c02fe65564.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/1/0435/6587/5359/files/ximufes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0290/4222/files/8895095739.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2358/9791/files/66730233510.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6472/1562/files/63473813279.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7675/5349/files/98134912703.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/51268900441.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0608/2717/files/74411490701.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1804/4063/files/24988058627.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4115/3439/files/jawagigezunoteged.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0609/1687/files/pusafadumefukavajaj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3048/5912/files/jisigapufikubogojekuv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/80023348890.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_off00005bd9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5BD9 5516 bytes
SHA-256: f3c24bdbf7d286be7d96a454387f7b073a7bbfb364962357e52e3aa1b68a2530
font_01_sfnt_off00006e87.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E87 10452 bytes
SHA-256: ac3e5ecae1e6981fdafad72b408f36c1aeb0e1d638b215e39bdc05d640a95fcb

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