Malicious PDF — malware analysis report

Static analysis result for SHA-256 7b6582596d3bb94b…

MALICIOUS

PDF

64.7 KB Created: 2020-08-06 20:55:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 198cf97144a5d2b395ae4adb3ba6a02b SHA-1: b2847a77c586657b6f49262b41a04b1b84a8a554 SHA-256: 7b6582596d3bb94b6ba0e7c60acdb90363bc6855fbb56cdc2d573d1769a7ddbd
194 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to a redirector service (ttraff.com) that is known to host malicious content. The document body itself contains the malicious URL, suggesting an attempt to lure users into clicking it for a supposed download. No scripts were extracted, but the presence of numerous links and the ML classifier's high confidence indicate malicious intent.

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=angularjs+tutorial+javatpoint+pdf In PDF document text
    • http://files.mclennancostume.com/uploads/1/3/0/7/130776514/vibave.pdfIn PDF document text
    • http://files.ejacts.com/uploads/1/3/1/3/131384018/givebivusunilujogoj.pdfIn PDF document text
    • http://files.pvd.tech/uploads/1/3/2/6/132682051/zekorowevig.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/1/0439/3598/9915/files/antony_hamilton_freedom.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0450/6284/8664/files/hey_angel_one_direction_mp3.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7977/0019/files/revupubawavofomawobufoz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2945/5271/files/101_ways_to_transform_your_life.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9105/1161/files/african_union_agenda_2020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2052/5469/files/81670963297.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3178/1791/files/jibekuzitamo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6636/8935/files/lecture_notes_on_data_structures_and_algorithms_using_c.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3884/2779/files/52375605694.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2182/0313/files/alcatel_one_touch_user_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9374/5046/files/30550617366.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6286/0699/files/suxuniboneju.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/0633/4888/files/castrol_edge_turbo_diesel_titanium_5w_40.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_off0000b181.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB181 5336 bytes
SHA-256: d726da17f610d3b0839c7aed950a5d522b7f37b8713a81a33d9eba059b89e9f2
font_01_sfnt_off0000c3cb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC3CB 16028 bytes
SHA-256: 943170a7d2cd4e0189ef39e45dba01e3c5ca0f0be0d5278644ab53670f89e089

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