Malicious PDF — malware analysis report

Static analysis result for SHA-256 7dc2775189b86067…

MALICIOUS

PDF

37.6 KB Created: 2020-08-22 01:04:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 52ad3893a3e09e69d19bc9e4aafb9d5c SHA-1: 819ac53e2918ce4f2a9c6124cdd4a444052ec822 SHA-256: 7dc2775189b86067a54985105730c6ef2fa248a5be2bcdc7aa333dfa6d0367d3
194 Risk Score

Malware Insights

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

The PDF contains embedded links that redirect to malicious infrastructure, specifically a redirector at `ttraff.cc`. This redirector is likely used to obscure the final destination, which is probably a phishing page or malware download. The document body, though heavily obfuscated, contains the same lure text and URLs, indicating a deliberate attempt to trick users into clicking the malicious link. 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=monster+dichotomous+key+worksheet+answers In PDF document text
    • http://mivute.676kittyhawk.com/uploads/1/3/1/0/131069935/7278050.pdfIn PDF document text
    • http://files.oprpac.org/uploads/1/3/0/7/130776795/vidulegopaxoze-gaguvavujat-sufikanonerak-xagugevo.pdfIn PDF document text
    • http://files.theroute92.com/uploads/1/3/0/8/130873973/zuguxizamuri.pdfIn PDF document text
    • http://files.sandysfashionsformen.com/uploads/1/3/0/8/130814055/lilig-pipenatatoxodal-guvajatomerov-busojafigoj.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/1/0434/8765/8141/files/95741491204.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2380/9187/files/wovore.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2412/9952/files/goxozaluzezukuzolamimiwin.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/3032/1051/files/vulkan_vs_dx12.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6037/9286/files/bozotudepejefixin.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7372/4825/files/1999_subaru_legacy_outback_owners_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/0267/2798/files/81896035583.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9874/3719/files/vewema.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6563/0102/files/96717557910.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5594/6645/files/modetorudexijumukoxera.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000045ec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x45EC 5292 bytes
SHA-256: 5f726bf3feec9841a2cb7c91efd824de2fe63bb83cf701d0193dfc26da6a4fe5
font_01_sfnt_off000057d8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x57D8 10404 bytes
SHA-256: 641e5e4ba12235abee67e76c83c56233663196c0a74fd0ca2326e161cb0b3cf5
font_02_sfnt_off00007b56.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7B56 4324 bytes
SHA-256: b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c

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