Malicious PDF — malware analysis report

Static analysis result for SHA-256 8183b3d10bcbbaad…

MALICIOUS

PDF

41.7 KB Created: 2020-08-13 03:10:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 7a2388851e3810660360421c2998e4d5 SHA-1: a2a38a6d96fe3983914c5a0266a065f55fd1a789 SHA-256: 8183b3d10bcbbaad40214ecf5b1e4bfad84a98ce0ec68c89f7220ed8f5fcf371
194 Risk Score

Malware Insights

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

The PDF file contains a link farm and a malicious redirector URL, disguised as a list of Ivorian senators. The primary malicious URL, https://ttraff.com/wb?keyword=liste%20des%20senateurs%20ivoiriens%20pdf, is designed to lure users into clicking it. The ML classifier strongly indicated maliciousness, and the presence of numerous external links suggests a phishing or scam attempt.

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=liste%20des%20senateurs%20ivoiriens%20pdf In PDF document text
    • http://files.danielspero.com/uploads/1/3/0/8/130874325/koxopilekikifuwuso.pdfIn PDF document text
    • http://files.cdestem.com/uploads/1/3/2/6/132695887/notanijilefuko.pdfIn PDF document text
    • http://files.edharwoodmemorialclassic.com/uploads/1/3/2/7/132740598/fajan-xufas-korejuwojukuguk.pdfIn PDF document text
    • http://files.wildlifehabitatecologylab.com/uploads/1/3/1/4/131414561/turevutujememudep.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/1/0431/7223/3380/files/96518859051.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2177/0656/files/bird_table_plans.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5010/6018/files/49140839385.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6448/2202/files/15840319190.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5390/8117/files/70207383491.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3049/4878/files/senamewo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7994/2812/files/design_strategies_in_architecture_baker.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8072/1311/files/backhaul_telecomunicaciones.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3615/5809/files/60862598572.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7106/8565/files/sijuxudobasujo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3504/0664/files/44464108508.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0962/2687/files/571435512.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9165/6855/files/rejejisepuwuse.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 2

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_off0000617e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x617E 5004 bytes
SHA-256: 3f49970838c026c5c0c23d65eb838ff76da688b88a1604f58c9b5005c3953c3f
font_01_sfnt_off00007298.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7298 11780 bytes
SHA-256: c911f7db21be495cf07a6b89be792c14faadb29f835f0d3bbb434389003b2954

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