Malicious PDF — malware analysis report

Static analysis result for SHA-256 890705933676e88a…

MALICIOUS

PDF

63.4 KB Created: 2020-08-06 01:15:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: dd0080c1629f18d1ca370f66585812c1 SHA-1: d0baa8a7a9aeb0fa6fa3f3e7cf3a15b4c77ad8e3 SHA-256: 890705933676e88a4e20eceda99e3ee164d72b3c2024bfcf7a767ee3fa82dc99
194 Risk Score

Malware Insights

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

The PDF contains multiple links to redirector domains, including 'ttraff.ru', which is flagged as malicious. The document body, though heavily obfuscated, contains the same malicious URL. The presence of numerous links to external PDFs suggests a link farm or SEO manipulation tactic to distribute malicious content.

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.ru/pify?keyword=anzus+treaty+pdf In PDF document text
    • http://files.vacationcarefun.com/uploads/1/3/1/0/131070030/8731600.pdfIn PDF document text
    • http://samexel.teresawriter.com/uploads/1/3/1/4/131407164/3d8473d84.pdfIn PDF document text
    • http://dewixuj.savitzsmith.com/uploads/1/3/0/7/130738799/3c9764f578b.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/1/0431/7950/7880/files/pixopi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/5823/1461/files/mesose.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0696/6429/files/nupogixawilug.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/12729031526.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1285/6731/files/throw_exception_in_java.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/bodadajigewodozisidezufe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6962/8828/files/61500239074.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2112/2208/files/6654994888.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/6653/8649/files/xanarutewidefipitoguj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9732/5732/files/rakikejojekax.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9334/3899/files/22614638038.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000bc2f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBC2F 5144 bytes
SHA-256: edbcf372c1315d82e8cd7a548e188578ef3c41d212840a7b9080e206c40a17a4
font_01_sfnt_off0000cdd5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCDD5 10248 bytes
SHA-256: 47b6a9038d94f90a3c3dd32571db299bd7f4f7557e96038918760318574d8efc