Malicious PDF — malware analysis report

Static analysis result for SHA-256 796aaf757abcb661…

MALICIOUS

PDF

44.2 KB Created: 2020-08-16 21:30:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: aa219a2c3ff57123e34e4a9d6da27359 SHA-1: e264d4e2fb96ac5d593c3f9f508c2a28111b53ad SHA-256: 796aaf757abcb661f5721f0ef05041da0fd2e9d4fa80b36ee857c2f8c9ff52b8
194 Risk Score

Malware Insights

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

The PDF document contains numerous embedded links, many of which point to a redirector service (ttraff.ru) that is known to host malicious content. The document body and embedded link structures suggest a phishing or scam attempt, likely using the 'Bangladesh cricket team' keyword as a lure. The ML classifier strongly indicates maliciousness, and the presence of multiple SEO-oriented links points to a campaign designed to drive traffic to malicious sites.

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.ru/pify?keyword=bangladesh+cricket+team In PDF document text
    • http://files.guerasboutique.com/uploads/1/3/1/6/131636972/vuroluzelax.pdfIn PDF document text
    • http://files.artisanmadegemstones.com/uploads/1/3/1/8/131857540/9dc1300.pdfIn PDF document text
    • http://files.tantrapsychic.com/uploads/1/3/1/0/131070178/tosovomorulifasuk.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/1/0435/6295/8997/files/82882305681.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8150/5695/files/young_again_in_another_world_light_novel.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5045/8526/files/dunuzoviduvubuloduzetujez.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1714/2433/files/74539060057.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8702/8639/files/griffiths_electrodynamics_4th_edition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9474/6023/files/xumoxul.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7811/3690/files/43317738564.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/9969/0910/files/creative_writing_assignments_for_middle_school.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 5

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_off000062bc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62BC 5144 bytes
SHA-256: ac9918b3c900bfaa4f5ad1d9fbf44274b4c675f89e7f72338ecade1ec78e3c16
font_01_sfnt_off00007400.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7400 10088 bytes
SHA-256: 5bd61ba4069f9d2a28d185a7704a967577c379869ad203b51ce4f6e8c8246b01
font_02_sfnt_off0000966c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x966C 4324 bytes
SHA-256: 9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2

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