Malicious PDF — malware analysis report

Static analysis result for SHA-256 2fcc2a0ff6e3362f…

MALICIOUS

PDF

46.1 KB Created: 2020-08-15 03:10:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 61b0e6d9dec659ba140e29d3619bedf6 SHA-1: 930fcb475706c83cb4e21caea41da0b36420d432 SHA-256: 2fcc2a0ff6e3362fc839e2eebc878f8ed72c4f88ddde6396128cd7d606d14d63
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/wb?keyword=system%20thinking%20approach%20pdf'. This indicates a phishing or redirection attempt. The document also exhibits characteristics of a link farm, with numerous embedded URLs, many hosted on Shopify, suggesting an attempt to obscure the malicious destination. No scripts were extracted from this sample, but the presence of the malicious redirector is sufficient evidence of malicious intent.

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/wb?keyword=system%20thinking%20approach%20pdf In PDF document text
    • http://files.intsangano.com/uploads/1/3/1/4/131483685/fojig.pdfIn PDF document text
    • http://files.myphotobookclub.com/uploads/1/3/0/8/130814774/ruputivarupetaw.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/1/0431/6502/4412/files/vida_y_doctrina_de_los_grandes_economistas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9052/5849/files/47243032529.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1330/6530/files/car_games_steering.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6230/5702/files/88943847297.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9791/5545/files/generic_statistical_business_process_model.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1986/0125/files/arithmetic_sequence_word_problems_with_solutions.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5318/7221/files/aditya_birla_health_insurance_form.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0413/3525/files/learning_spanish_basics.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6993/1673/files/metajebufun.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8143/3242/files/physics_formulas_for_class_9_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7641/8720/files/vubolekujo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4953/9989/files/saint_young_men_movie.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 3

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_off00007324.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7324 5808 bytes
SHA-256: 8b68ae140103671123d537e1d1d0c76a0a76643228703a3bcb7d953ead777e3a
font_01_sfnt_off000086c3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x86C3 10300 bytes
SHA-256: 2b81884b036fe7b8332da73a66db703bf41fa956e607396ad18e292cd0be7fbf

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