Malicious PDF — malware analysis report

Static analysis result for SHA-256 4647182c695df55f…

MALICIOUS

PDF

50.5 KB Created: 2020-09-02 00:28:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c3e8c7099c6547600a9ae3366d4cad3e SHA-1: 4a3d495e0e0df5b25faff357111869b0ccfdcb79 SHA-256: 4647182c695df55fd176ac30deee57db1d6d7bd5e9c3a5864975a4d7ee210a1e
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, pointing to 'https://ttraff.cc/wix?keyword=free+attendance+record+templates'. The document body, though heavily obfuscated, contains this same URL, suggesting it is the primary lure. The presence of a large number of external PDF links also indicates a link farm strategy, likely to improve search engine ranking for malicious content.

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/wix?keyword=free+attendance+record+templates In 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/1/0433/8938/6901/files/kefagitotisatomenarowotaz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1010/5255/files/67935376092.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0462/4112/0416/files/ableton_live_10._1_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6996/4439/files/certificate_of_identity_residence.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6009/1287/files/92414401119.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/964009_165cfe438ba04ee29bb17c3a64454448.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/57c819_e4c9009dddc644bdae394ef697736eb2.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/165585_fae6d066c636414aae817e3f4bfea93c.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/46429b_52dade5e54914ad4b52fc3b4167c22b9.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/ee6770_5ae5025fc8414bd59d2a19e46e47727d.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/40512e_4c26db8f42f241029c9372a8090e3243.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/0087/8488/files/verizon_canceling_contract.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9386/9223/files/11579887200.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/84312174386.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
🗂 Part of campaign: patelp.com 4 samples

Related samples 2

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_off00008868.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8868 5176 bytes
SHA-256: 3c246ae8659bc5ca98bf1de9eebaae94d27b2b7ac1eee453358e336825f38cd5
font_01_sfnt_off000099e9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x99E9 10244 bytes
SHA-256: afbd42270865e947b34a4a5d98f45788814a7dc2e5463e370ae4762bebf38257

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