Malicious PDF — malware analysis report

Static analysis result for SHA-256 b7fa7cb9df2fe3a1…

MALICIOUS

PDF

37.4 KB Created: 2020-08-13 16:41:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4012f9a3d7cb28c19e48b65eb842c6ea SHA-1: b01913375a974a9ae614a17eedcded54e3b07227 SHA-256: b7fa7cb9df2fe3a11486a0cacf549b3b0f3ef00a63a9a0d19d784e1dc2ea1b36
194 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'ttraff.com'. The document body, though heavily obfuscated, contains the same URL and keywords related to PDF manipulation, suggesting a lure. The presence of numerous other links to PDF files hosted on Shopify, while some are benign, indicates a link farm strategy to obscure the malicious redirector. The primary intent appears to be redirecting the user to a malicious site.

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=make%20all%20pages%20same%20size%20pdf In PDF document text
    • http://files.scriptwriters-houston.org/uploads/1/3/0/7/130776120/xomazuwutaruse.pdfIn PDF document text
    • http://files.phyto5.com.au/uploads/1/3/1/4/131412032/wuwaduli-puzebikofen.pdfIn PDF document text
    • http://files.ameridragonsports.com/uploads/1/3/0/8/130813663/290909.pdfIn PDF document text
    • http://files.changemakersbusinessacademy.com/uploads/1/3/1/6/131606431/6fdae1.pdfIn PDF document text
    • http://files.joshuaiserhoff.com/uploads/1/3/0/8/130873876/3968640.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/1/0428/1407/9143/files/lewiwidaxojuse.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8641/3985/files/sivupemawanujolujixo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0751/5558/files/bullet_journal_ryder_carroll.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5207/2089/files/wuvonadof.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6533/5190/files/sovural.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3284/5207/files/gopoxufafaxagefozeg.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0418/2173/files/62428554344.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0094/7103/files/antenna_design_parameters.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/mowelikuzamutaj.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 6

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_off0000547c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x547C 5384 bytes
SHA-256: dc56c2bcbbd4ce6b25faab9da0b59eafc431f1802897dae05e4f4e2d8b4f84dd
font_01_sfnt_off000066d8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x66D8 10000 bytes
SHA-256: b1cd8c6855cc3add9fc2db876e5c96bff26199db8fa991e590f38bf75d678878

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