Malicious PDF — malware analysis report

Static analysis result for SHA-256 df207c44114ea339…

MALICIOUS

PDF

44.4 KB Created: 2020-07-30 12:30:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 5e941d95877770bd664919679bb0dede SHA-1: 95121ca23202a6751c1bb76a989148ae58cab5f3 SHA-256: df207c44114ea339687b67e2f2f5946ba8ae28d6bf26ed1eb419a45cf0b8c9c1
194 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, pointing to 'ttraff.com'. The document body, though heavily obfuscated, contains text related to 'vocabulary test questions and answers pdf', likely a lure to entice users to click the malicious link. The file also contains a large number of embedded links, many pointing to Shopify domains, suggesting a link farm or SEO manipulation tactic to distribute the malicious URL.

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=vocabulary+test+questions+and+answers+pdf In PDF document text
    • http://files.vine-tiquewoodproducts.com/uploads/1/3/1/4/131437636/sasetakariku.pdfIn PDF document text
    • http://files.topnotchfrenchies.com/uploads/1/3/1/3/131398235/7640084.pdfIn PDF document text
    • http://files.greenkeyconcreteforms.com/uploads/1/3/1/3/131380146/sidisoguse.pdfIn PDF document text
    • http://files.vinylspec.com/uploads/1/3/1/6/131637021/dimar-xezukenevodepo-xezawore.pdfIn PDF document text
    • http://files.labradoodledelightsoflot16.com/uploads/1/3/0/7/130776855/wiremidorejis.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/1/0433/3237/0590/files/timunafuvusaxugak.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2750/4024/files/23429660274.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6688/4250/files/74159100865.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0792/5654/files/41398482324.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5481/7690/files/39826788602.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2362/9477/files/53284852296.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/4304/2966/files/3469587171.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1329/9620/files/6145859437.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0857/9993/files/jugaxifawosofijisuvebibuz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0047/9391/files/bijezatumizuja.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1343/0686/files/sugagosamudopub.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0047/0438/files/16918220159.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1763/3949/files/sodiremajuwivudovinidetes.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 6

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_off00006d0e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6D0E 5456 bytes
SHA-256: 7273e99c28dc902e8d1f1e17800d146ccd4ef4757da68337cf4b3107f02d70b2
font_01_sfnt_off00007fac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7FAC 11296 bytes
SHA-256: 538517ebd305f8f5384a28f60cc212d1832b8640e4419ea27b4833cd47aa0576

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