Malicious PDF — malware analysis report

Static analysis result for SHA-256 65a558f502e269aa…

MALICIOUS

PDF

42.5 KB Created: 2020-08-14 17:33:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c07dbbb4323f67e08b0c461bc83ddbd1 SHA-1: c85f397aa75e1067f5a5627e31282a861e335745 SHA-256: 65a558f502e269aafbc3c3fb52120247d417b7390820c980fcf1113168a9ae1d
194 Risk Score

Malware Insights

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

The PDF contains numerous links designed to appear as legitimate downloads, but they redirect to a malicious domain (ttraff.com). This is a common tactic for phishing or malware distribution, often delivered via spearphishing attachments. The ML classifier strongly indicates maliciousness, and the presence of SEO-optimized links suggests an attempt to broaden reach.

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=kptcl+assets+and+liabilities+format In PDF document text
    • http://files.charleskalick.com/uploads/1/3/1/4/131410952/kevozuxuwuvexu.pdfIn PDF document text
    • http://files.thejharrisdesigns.com/uploads/1/3/1/1/131163635/dekukovuxideda.pdfIn PDF document text
    • http://files.busylilbeefloral.com/uploads/1/3/1/6/131606346/9a9f3b.pdfIn PDF document text
    • http://files.deficientautobiographicalmemory.com/uploads/1/3/1/0/131070441/ccc83ff04.pdfIn PDF document text
    • http://gotidim.thecheesesteakplace.com/uploads/1/3/1/0/131070036/tafutulovesidewo.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/1/0439/4388/7016/files/list_of_adjectives_in_english.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7699/3702/files/chinese_characters_worksheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8079/4790/files/mukoworazaniwadip.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3810/3962/files/31706789656.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6284/4837/files/indeed_resume_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3264/9636/files/10486419908.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7469/8912/files/kutiziwewu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0192/1184/files/xodekavabodupo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/2606/9157/files/55310354559.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0446/6917/3923/files/82368722729.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_off00006802.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6802 5412 bytes
SHA-256: 119cbba00ca11380470e5a8c97c1d42e46a50cab6cd64ffa0eea07df36c89799
font_01_sfnt_off00007a45.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7A45 10080 bytes
SHA-256: a7bb3fb82429d10fcd7c3651551b356fe6da0f92eb122eb7410e656cbfaa9dbc

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