Malicious PDF — malware analysis report

Static analysis result for SHA-256 0558e071dad938eb…

MALICIOUS

PDF

42.9 KB Created: 2020-08-13 03:04:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 867ae2b80114342f98c125acfd4b6a5f SHA-1: 4bedef731f4b327d1b46bd28a979761c3f93e82e SHA-256: 0558e071dad938eb054178729f3a0e9757dc00e12121eeac5a4631269d6f89ed
202 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file contains numerous links designed to redirect users to a link farm, likely for SEO manipulation or to host further malicious content. The primary redirector URL is identified as malicious. The document body, though heavily obfuscated, contains the primary redirect URL and several benign-looking Shopify URLs, suggesting a lure to a malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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.ru/wb?keyword=histamina%20en%20harina%20de%20pescado%20pdf In PDF document text
    • http://lakuw.marianwilde.com/uploads/1/3/0/9/130969472/baferesitesero.pdfIn PDF document text
    • http://files.globaltakeoverfx.com/uploads/1/3/1/4/131452935/4031279.pdfIn PDF document text
    • http://nedasizu.seanwebsterillustration.com/uploads/1/3/1/3/131379591/zomopejamo.pdfIn PDF document text
    • http://files.cgsource.net/uploads/1/3/2/7/132740234/vonezorelukir_kariwa_bawijirumuje.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/1/0433/1021/9422/files/tibofepogib.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9865/1288/files/beposamovorur.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8047/4014/files/netorowefijof.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4092/4063/files/multiplying_matrices_python.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6214/0840/files/21194763015.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4957/3784/files/gemineni.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3009/3728/files/21074284110.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4527/3251/files/python_plot_histogram.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3248/5799/files/dafotiluw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/0083/7782/files/19358945525.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0448/4779/2288/files/bharti_axa_insurance_policy_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7016/7967/files/101_science_experiments_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5208/9000/files/58337187166.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 1

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_off00005f23.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F23 5324 bytes
SHA-256: b2adab3f01fba08f951d1e559a64cc1495f32e7d564b539248149fcfa014eaa5
font_01_sfnt_off000070fe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x70FE 14380 bytes
SHA-256: c250c176f969ae3e7e2d1e972f7e38861d8aab89eed95f00b4f3d9e07a050b70

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