Malicious PDF — malware analysis report

Static analysis result for SHA-256 0262a1c9db45c47e…

MALICIOUS

PDF

39.8 KB Created: 2020-08-18 19:46:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: 9aa04ac5e7b357314dc952412d8a7708 SHA-1: 0231e45fa85081fb8543efc8e9d76fab48c3192c SHA-256: 0262a1c9db45c47e4f0bafa1aac671b6a54b35df517ee3ffcbedc0b52a1d64d3
194 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, including a critical redirector link to 'ttraff.ru', which is flagged as malicious. The document body, though heavily obfuscated, contains text suggesting it is a 'Haltom city water quality report', a common lure for phishing or malware distribution. The presence of numerous external PDF links further indicates a link farm or SEO poisoning attempt to drive traffic to 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.ru/pify?keyword=haltom+city+water+quality+report In PDF document text
    • http://files.westaflearningcenter.com/uploads/1/3/1/6/131607374/zixedogipavepum-nasunuto-jonor-besutoxekokafeb.pdfIn PDF document text
    • http://xonufal.marleyboone.com/uploads/1/3/0/7/130740051/8747083.pdfIn PDF document text
    • http://rosopufi.allanimalclinichattiesburg.com/uploads/1/3/1/4/131437252/79efe5.pdfIn PDF document text
    • http://files.buckyd.com/uploads/1/3/1/4/131437689/1385741.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5563/5880/files/how_to_mod_rimworld.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6454/0835/files/66123410462.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9573/6988/files/koteborisuzo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1762/3957/files/durapifu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2042/7157/files/91564345257.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8825/5912/files/headache_classification.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/9442/3192/files/19273701369.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0288/7322/files/anticorpos_heterfilos.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 2

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005046.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5046 4956 bytes
SHA-256: bd0b4ec6385c92d3abd79e568884429f2456cf1714318a701098492d9c5d99dd
font_01_sfnt_off0000613d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x613D 10340 bytes
SHA-256: 51a9bbd40dfa593d478db6f0c5e209dbf36ed06d0397a532615ae80a887aa82c
font_02_sfnt_off0000846e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x846E 4324 bytes
SHA-256: cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34

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