Malicious PDF — malware analysis report

Static analysis result for SHA-256 a68310b2b696a273…

MALICIOUS

PDF

42.2 KB Created: 2020-08-08 13:04:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 1dd142cda9cf45adf59c4cfba11af123 SHA-1: 176da0778ccc82ecddf6a75a3790b56cf6d2d7a2 SHA-256: a68310b2b696a273e1a49601fa6456dd04defd1ea22bdbcccd56779cfd3bad36
194 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, ttraff.com, which is disguised with keywords related to Christmas crafts. The document body, though heavily obfuscated, contains the same lure text and URLs. The presence of a link farm heuristic further indicates a malicious intent to distribute links, likely for phishing or malware delivery.

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=ornamente%20de%20craciun%20din%20hartie%20facute%20manual In PDF document text
    • http://nafeno.19th-light-dragoons.ca/uploads/1/3/0/7/130738970/zusonirozarotuxo.pdfIn PDF document text
    • http://files.comedianambrosejones.com/uploads/1/3/1/4/131406337/bivanovavu.pdfIn PDF document text
    • http://files.worcesterdogs.co.uk/uploads/1/3/0/7/130775063/3019835.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/1/0433/4354/4488/files/zokirane.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6092/8405/files/dodureti.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3240/4380/files/81151968162.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2454/0071/files/xilebozena.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4746/1788/files/nedugoduzugokik.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6393/5129/files/participle_adjective_exercises.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8863/2213/files/21530177252.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7578/8188/files/verizon_annual_report.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5467/7662/files/fotizinifidaxela.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4659/1903/files/adverb_of_place_and_time_worksheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5412/1635/files/nepupexojobufadazexur.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0780/2518/files/cantares_de_gesta_definicion.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 6

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_off000064c8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x64C8 5112 bytes
SHA-256: 6a6fdbd01b52fa49ad0915a2e7e05551d30816eda813fb6327fa5eb5380be639
font_01_sfnt_off00007600.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7600 10972 bytes
SHA-256: 1c82a98db816230b73b8196231c8dabf92a5df79297918f9dd74164d12fa178b

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