Malicious PDF — malware analysis report

Static analysis result for SHA-256 aa401e401d821e31…

MALICIOUS

PDF

45.6 KB Created: 2020-08-24 06:09:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 5e0d4d3eedce4edd5afeb436fc1bc0dd SHA-1: 1ea3b08fa68b2e1c5c57ff257bf0ff01f2799f2d SHA-256: aa401e401d821e31dc61e7c9d781dbd084fb07ee09dbee102f0514236d5fc1e4
194 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link pointing to 'ttraff.com'. Additionally, it exhibits characteristics of a PDF link farm, embedding numerous external links, many hosted on Shopify. The document body, though heavily corrupted, contains the same malicious URL and a benign-looking title, suggesting a lure. The primary malicious URL is likely used to redirect users to a phishing site or to 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/pify?keyword=free+colouring+sheets+for+christmas In PDF document text
    • http://gonapinu.leadingedgeequine.com/uploads/1/3/2/6/132680835/9241252.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/1/0434/0462/4021/files/great_is_thy_faithfulness_piano_solo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1827/2417/files/96231001404.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9717/0847/files/51802459722.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9807/1450/files/mewuw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2442/4853/files/67147550519.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0448/4435/1649/files/zagevajebuminafejodewivij.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8271/8107/files/bepuseweb.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8138/4604/files/50799764536.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6189/3534/files/kenyan_passport_application_form_online_in_kenya.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/4477/1739/files/critical_path_method_example_questions_and_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4669/9165/files/febenewanulotefexiva.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8456/2084/files/writing_chemical_formulas_and_naming_compounds.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/3196/2535/files/zodavabiluja.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 7

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_off000075e9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x75E9 5248 bytes
SHA-256: c3920207cf28da53890644420f6d6cfc2ea2f7662e8fe714236a0db6b313ad5c
font_01_sfnt_off00008792.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8792 9948 bytes
SHA-256: e015d6ec468403b024e41c5860633ef58215c323b70e9378d9127d710a0110a8

Open this report in the interactive analyzer, or submit your own file for analysis.