Malicious PDF — malware analysis report

Static analysis result for SHA-256 e513ded3a84afecd…

MALICIOUS

PDF

44.5 KB Created: 2020-08-13 07:42:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 834a32f5247d4e8220e41ea45e36a8f4 SHA-1: 5a48a9fcb9b2928e84cbb2bdbcde8661c36906d3 SHA-256: e513ded3a84afecd38e44b29c37ac40f4bae837c2231d5998737be25bb4e9a73
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, directing users to 'ttraff.cc'. The document body, though heavily obfuscated, also contains this URL, suggesting a lure to a malicious site disguised as a tutorial PDF. The presence of a large number of external links, many pointing to Shopify domains, indicates a link farm strategy, likely to improve SEO 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/wb?keyword=distributed%20dbms%20tutorial%20point%20pdf In PDF document text
    • http://files.shannonedwardsphotography.com/uploads/1/3/1/4/131453555/148161.pdfIn PDF document text
    • http://files.joantenenbaum.com/uploads/1/3/1/0/131070485/zamokijufizapi.pdfIn PDF document text
    • http://gumikuvip.teresastrachanwoventextiles.co.uk/uploads/1/3/1/3/131384714/fitarusud.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0360/0286/files/57700851715.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2568/6951/files/26467564989.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0087/3631/files/pelakivupejivopixuminoz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/8531/4715/files/storm_in_a_teacup_book_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4007/9005/files/lagopewuzugirila.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8733/9413/files/23611247091.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1903/3000/files/pugesa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7287/9773/files/human_anatomy_and_physiology_in_tamil.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5522/6773/files/safozukapolobinojese.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/bagubiginapir.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3258/4098/files/dosowamufubafojiribe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/4477/1739/files/33143839825.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 2

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_off0000634c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x634C 5208 bytes
SHA-256: f04c5ca872ebb700e3a2aeb69e4002e5b6c595d3246bfd1500471865d18091bb
font_01_sfnt_off000074d7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x74D7 9936 bytes
SHA-256: 5a9d47f97a04206fed4b30ce82cf7d1c36fed97c2858d4edd9373b2236786e42
font_02_sfnt_off000096d2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x96D2 4324 bytes
SHA-256: 1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361

Open this report in the interactive analyzer, or submit your own file for analysis.