Malicious PDF — malware analysis report

Static analysis result for SHA-256 96df5a688d45832c…

MALICIOUS

PDF

42.1 KB Created: 2020-08-13 22:19:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: f3046e43add7b946b8a35d87460b5395 SHA-1: 60fbb7f781ea575794a3775ac5528eb6d759a6a3 SHA-256: 96df5a688d45832c659b64469c7481594cb47b39e02105782eb9ec11328f06e3
194 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to SEO-optimized PDF files hosted on various domains. One of the primary links directs to a known malicious redirector at 'ttraff.ru'. This suggests the document is part of a link farm or SEO poisoning campaign designed to drive traffic to malicious infrastructure.

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=winter+colouring+sheets+for+kindergarten In PDF document text
    • http://files.plainfieldgirlscouts.org/uploads/1/3/0/8/130813692/julodelarukat-kadovejexabo-fefuwiw.pdfIn PDF document text
    • http://kutuvez.talesfromthenursinghome.com/uploads/1/3/1/1/131164462/5d38b0bf628867d.pdfIn PDF document text
    • http://files.marrakechguidedtours.com/uploads/1/3/0/7/130739947/nitavipij_kajutirudo_gimofe_duwez.pdfIn PDF document text
    • http://files.crossfamilystudio.com/uploads/1/3/0/7/130739693/3423159.pdfIn PDF document text
    • http://files.luangprabanglibrary.com/uploads/1/3/1/4/131411896/5873156.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/1/0432/8371/0117/files/98663569554.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9289/3093/files/amplifier_repair_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9159/1317/files/emerald_tablets_of_thoth_deutsch.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6954/7431/files/cardiopulmonary_bypass_principles_and_practice.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8250/5628/files/45070940433.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6217/3604/files/architectural_drawing_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1307/0238/files/87172296848.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2031/2991/files/38206757874.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4241/4487/files/calendario_2020_para_imprimir_chile.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0276/4184/files/nekepakev.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6674/4220/files/zojaxobes.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_off0000672c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x672C 5360 bytes
SHA-256: d21a15a5d09a168eecf541b6252b3053a44b0ea181d0eaa39d19811a08a41467
font_01_sfnt_off00007968.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7968 9976 bytes
SHA-256: 3f16856f29984445177e2577fa2f4890c45223fd36d62adfa0994dd86cfa65c8

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