Malicious PDF — malware analysis report

Static analysis result for SHA-256 e8e29e0e7b8658a7…

MALICIOUS

PDF

42.2 KB Created: 2020-08-26 05:17:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 384dc756c49d4c181b64b0bcffe994aa SHA-1: 8e6f01b129ee87bf66985c2c10851503e3a94e29 SHA-256: e8e29e0e7b8658a738f5dab49397c86b34962f60c29d405f891faf629956137a
194 Risk Score

Malware Insights

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

The PDF contains a significant number of embedded links, with a critical heuristic firing for a malicious redirector. The document body, though partially corrupted, includes the URL 'https://ttraff.club/pify?keyword=reading+passages+for+college+student', which is also flagged as a malicious redirector. The presence of a large PDF link farm suggests an attempt to manipulate search engine results or distribute malicious content through seemingly benign links.

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.club/pify?keyword=reading+passages+for+college+student In PDF document text
    • http://dizalex.tfgcco.com/uploads/1/3/0/7/130776366/56dbc9b95d4c2.pdfIn PDF document text
    • http://vadek.kimtarrestaurant.com/uploads/1/3/0/7/130739017/vopot-robogazovunazu.pdfIn PDF document text
    • http://guvefap.ndsportschannel.com/uploads/1/3/1/3/131379478/wusogepesifefe-timevijatefa-tilijipozoki-xiwawaxariduki.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/1/0427/7927/9527/files/gakubosaka.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4488/1059/files/veteguwajexapaj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9201/7305/files/facebook_audience_network_android_tutorial.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7922/1927/files/vexutopozapub.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5547/1002/files/wuludebavukevavasij.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/4841/6933/files/ditokolibododawujelepodix.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5809/4495/files/1720167268.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8589/6609/files/xunipo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1418/3323/files/52950590012.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_off0000676a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x676A 5328 bytes
SHA-256: 4606417756f3eb9d54f4c8352e3d5e8a1351ee3b2f99c76f3bd1b6e100a6fae5
font_01_sfnt_off0000799b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x799B 10120 bytes
SHA-256: 981882f8749db854ad816af77da82759c6d016990be9504a858e1e7f84524e5b

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