Malicious PDF — malware analysis report

Static analysis result for SHA-256 659c88a7974b61ad…

MALICIOUS

PDF

46.5 KB Created: 2020-08-14 00:10:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e7a3954e907c25467151cc6184a5dc61 SHA-1: 702c2a92da4cbd0636d37d00371a1618d95cac0a SHA-256: 659c88a7974b61add1dd21fcdd9e4a1d36b7bdcadf050ab7775de36abadc85bf
202 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, many pointing to redirector infrastructure like 'ttraff.cc', which is flagged as malicious. The document body text and heuristics indicate a 'download button' lure, suggesting a phishing or scam attempt. The presence of multiple SEO-optimized PDF links further supports a link farm strategy to distribute malicious content.

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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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/pify?keyword=button+type+submit+form+action In PDF document text
    • http://files.kenpodvd.com/uploads/1/3/2/6/132695329/nisufer-wefefifotedepe-webavolugajilo-judigalijer.pdfIn PDF document text
    • http://files.ecocaregreen.com/uploads/1/3/1/3/131384468/pavefofat.pdfIn PDF document text
    • http://files.yourlushgarden.com/uploads/1/3/0/7/130740068/03036.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/1/0436/0850/6531/files/61239882421.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9318/1087/files/vufavizujilirimunetigejag.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4135/7973/files/19435142549.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0451/4581/7253/files/materiales_dentales_conocimientos_basicos_aplicados_gratis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2022/1607/files/62052645578.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0448/1276/3298/files/aprendizaje_auditivo_visual_y_kinestesico.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/32823332632.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4253/6598/files/guide_to_understanding_personal_finance.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8795/4073/files/one_page_business_plan_template.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9755/5093/files/stored_procedure_mysql.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 8

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_off00006d25.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6D25 5420 bytes
SHA-256: fd2e46ce26aa60c570586cb71863108c00a0684af72ac7134d8110976bd25e09
font_01_sfnt_off00007f82.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7F82 14608 bytes
SHA-256: 5e92896c147bdd37fe0d6df6fbf17755dfa1ce6c6f6f69c3674371a41ede36dd

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