Malicious PDF — malware analysis report

Static analysis result for SHA-256 85dda0d3a199320c…

MALICIOUS

PDF

48.8 KB Created: 2020-08-08 22:49:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 2efe21d35096bb820a700d774818084e SHA-1: f38d0c4975fc2981e86ea9a92342e8b8928d0711 SHA-256: 85dda0d3a199320cf80cb70ba8aba1cb2c50dc85c158b8f7d62d9bec738f10b4
154 Risk Score

Malware Insights

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

The PDF contains embedded links, with one prominently pointing to 'ttraff.com', identified as a malicious redirector. The document body, though heavily obfuscated, contains text related to 'Manual/self-winding automatic movement' and the malicious URL, suggesting a lure for phishing or a scam. The ML classifier also strongly indicated maliciousness.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • 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/wb?keyword=manual/self-winding%20automatic%20movement In PDF document text
    • http://files.bibleverseshelp.com/uploads/1/3/1/4/131407737/pumopupunonij.pdfIn PDF document text
    • http://davoguju.watchwordediting.com/uploads/1/3/0/7/130775934/faladajesevam.pdfIn PDF document text
    • http://files.thebeautycat.com/uploads/1/3/1/3/131384635/2528483.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/1/0445/8138/8452/files/pig_dissection_diagrams.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9380/2646/files/29914145123.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5719/2853/files/56565613010.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9627/6128/files/81984099682.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9785/8972/files/kingdom_hearts_2_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/riginijulu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2012/3285/files/siluzovogetefixiti.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8974/6337/files/hematology_book_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6909/3541/files/ruluzofuzobitizafanezu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2023/8503/files/32066137987.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8901/1612/files/bus_eireann_109_timetable.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 3

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_off0000809c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x809C 5472 bytes
SHA-256: 6702304279bee380a4c9e946bf647c8b391cb849518387912e4a798cf7d3b57a
font_01_sfnt_off00009363.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9363 10152 bytes
SHA-256: 7aa307e840971805a1cd3a389759a220617f40f9eec120c45033cd36b53d65c0

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