Malicious PDF — malware analysis report

Static analysis result for SHA-256 5ddc31db18e34e1a…

MALICIOUS

PDF

36.5 KB Created: 2020-08-09 03:35:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 66fd0190127cbee8ecd38266c9fbb1f7 SHA-1: c30ff43596a1729af880cc5e6f61d0df4ac5b2ce SHA-256: 5ddc31db18e34e1aa0a810af12e38baa1ed3de6f77b18f56b05ab8e67d0aa81c
194 Risk Score

Malware Insights

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

The PDF contains multiple heuristics indicating malicious redirector links and a link farm, suggesting a phishing or scam attempt. The embedded document body text and extracted URLs point to a lure for a 'relay manual' which redirects to the malicious domain ttraff.com. While no scripts were explicitly extracted, the PDF structure and link farm behavior are indicative of malicious intent, likely to lead the user to a compromised site or download further malware.

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.com/wb?keyword=7sj600%20relay%20manual In PDF document text
    • http://files.marzipan-media.com/uploads/1/3/1/8/131856184/7584706.pdfIn PDF document text
    • http://kefewojik.kennypughmusic.com/uploads/1/3/0/7/130776760/butimilekuzoxe-mosamozaf-jinuxurati-zobonev.pdfIn PDF document text
    • http://jiboxul.tarafergusonphd.com/uploads/1/3/0/8/130813612/1912900.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/1/0433/4478/9653/files/3045831514.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9459/8047/files/honeywell_ademco_6148_keypad_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6888/3098/files/modern_abc_chemistry_book_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2754/5757/files/fetitegubovaz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2017/3983/files/81258189023.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7514/0761/files/elementary_probability_theory.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4462/5822/files/17749604492.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8488/0798/files/pure_mathematics_books_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4747/7667/files/77058187664.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6983/2342/files/range_rover_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6895/6565/files/8263109845.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5693/1751/files/33987396275.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_off00005228.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5228 5288 bytes
SHA-256: 0e282f9edf2b299087079e3d052fdb22249afe48218c16b47a3505155b9beab7
font_01_sfnt_off0000641a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x641A 9868 bytes
SHA-256: d7da68ca486a78b03f4035aa3c956caf765b553de5904c186da08945fa6dca4d

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