Malicious PDF — malware analysis report

Static analysis result for SHA-256 ea0ceadbe74a4020…

MALICIOUS

PDF

40.5 KB Created: 2020-08-02 22:54:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e0164679df6999f52796fd1189c2867e SHA-1: 23416eeadd847a98096f0be63327d16ce2f8352f SHA-256: ea0ceadbe74a40205fd27728d4667f00593b184b9efc0949500616fc7440380f
194 Risk Score

Malware Insights

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

The PDF contains a link farm with 30 external links, including a redirector to 'ttraff.cc' which is flagged as malicious. The document body mentions 'Amazon redeem gift card', suggesting a phishing lure. The ML classifier also strongly indicated maliciousness. The primary malicious IOC is the redirector URL.

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=amazon+redeem+gift+card In PDF document text
    • http://files.namtokkitchen.com/uploads/1/3/1/3/131398246/4e8cbf2c30bf.pdfIn PDF document text
    • http://files.petermaxwellslattery.com/uploads/1/3/1/1/131164079/859521.pdfIn PDF document text
    • http://files.mariongrp.com/uploads/1/3/0/8/130814715/4459690.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/1/0434/0069/1879/files/vogavisivodujegova.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5099/0753/files/juwudafeja.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8977/2187/files/leatherworker_leveling_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1373/3533/files/fujafavoximuvupura.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3064/2837/files/7720463566.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6657/2452/files/31022830464.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/zugazad.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6150/0309/files/69605477534.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8032/7076/files/motinoxi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6042/8962/files/ropezuxuvojisamukezu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4383/1464/files/67847548262.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6797/4556/files/xadarozapupam.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000061a2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61A2 5172 bytes
SHA-256: 9873f640a29f90b26bbf3a67a2b902ad62de4cc12cf089aee8099f65f4f7f183
font_01_sfnt_off00007329.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7329 9960 bytes
SHA-256: 5f7f877b6cb6eb013dd2d7b1966256f3ba4354e59821b6de043fb23179c8b766