Malicious PDF — malware analysis report

Static analysis result for SHA-256 dee684b66124bd86…

MALICIOUS

PDF

43.3 KB Created: 2020-08-05 14:31:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: bd795ed9b288506e815df19770626c9f SHA-1: 8f107f4e761badc536e875958b7d875843907f6f SHA-256: dee684b66124bd86820bcd2eb2b9296892f8dfcea8cfee18ebd629269f592789
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to ttraff.cc. The document body, though heavily obfuscated, also contains this URL. The presence of numerous external PDF links, many hosted on Shopify, suggests a link farm or SEO poisoning tactic to distribute the malicious content. The primary malicious IOC is the redirector URL, which is likely used to funnel victims to further malicious sites.

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/pify?keyword=active+and+passive+voice+formula+for+all+tenses+pdf In PDF document text
    • http://files.cardconnectscal.com/uploads/1/3/1/4/131455463/4056291.pdfIn PDF document text
    • http://nenuvuwut.lorenasantacruz.com/uploads/1/3/2/6/132681556/bewuviradit.pdfIn PDF document text
    • http://files.stclairslsc.org/uploads/1/3/0/8/130874524/zazaxekasovirugukew.pdfIn PDF document text
    • http://files.la-fll.org/uploads/1/3/0/9/130968935/2817256.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/1/0435/2871/6439/files/xofumuwotusixisevisul.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5296/6812/files/42814516828.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1699/4466/files/29842996953.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0413/2508/files/multiplication_and_division_worksheets_for_grade_3.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7623/1063/files/nafikopej.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0449/8885/8536/files/honeywell_th8320u1008_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/86477918810.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7833/7187/files/53657368727.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6404/1373/files/givifazerezukavapagagirid.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0477/2000/files/31577608367.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0655/7347/files/belajar_trading_cryptocurrency.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1327/5811/files/64330535225.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0304/3230/files/46904513353.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_off000069bc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x69BC 5352 bytes
SHA-256: 3eb862df18ab856802e4ec3272e55ceb28254aa72029f40aa8b50d1aea783489
font_01_sfnt_off00007be5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7BE5 11008 bytes
SHA-256: e8e3bc5729123412d72821761229272a98176716bdc1b9a59f0e8c52b70fe5c8

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