Malicious PDF — malware analysis report

Static analysis result for SHA-256 6e70ecb77165ee02…

MALICIOUS

PDF

53.7 KB Created: 2020-08-26 02:08:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 03944d0922adb760ecbddb20a6171578 SHA-1: dec6ad77b3979f6384c75c8a6c03b40f69c1c2d8 SHA-256: 6e70ecb77165ee0285c704f7fce1d0864a49b4ce4ad6ce9790788a044fe54e1c
194 Risk Score

Malware Insights

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

The PDF contains numerous links, many pointing to a redirector service (ttraff.cc) which is flagged as malicious. The document body, though heavily obfuscated, contains the same malicious redirector URL and benign-looking Shopify URLs, suggesting a lure to a phishing or malware distribution site. The ML classifier also strongly indicated maliciousness.

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/pify?keyword=reading+comprehension+passages+pdf+5 In PDF document text
    • http://files.marymartinharper.com/uploads/1/3/2/7/132741535/mixatojakatofer_jajodisa_vawokibexusef.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/1/0437/8784/5790/files/grass_cutting_contract_template.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0451/3490/5498/files/java_programming_tutorial.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8468/5224/files/bhai_bhai_garba_song_pagalworld.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2717/6344/files/punevumekefefarug.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1353/7951/files/95950911286.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1209/4109/files/91237031431.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6946/4991/files/vopanefobizidubobo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5942/0063/files/dakozokodawegozuxetes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9462/1862/files/zadedudebinug.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0636/0725/files/remimibor.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9807/0426/files/php_display_image.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000093a0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x93A0 5668 bytes
SHA-256: 86acff03afc667ab72311c76f38c86b398d742480fb0026551c53bc2b86f2a89
font_01_sfnt_off0000a6bb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA6BB 10408 bytes
SHA-256: 346921585e30ba584418f849f7decd1f3587abed0b3f6cfbcc1a6642e8d1ea58

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