Malicious PDF — malware analysis report

Static analysis result for SHA-256 b482a8373d45661e…

MALICIOUS

PDF

42.5 KB Created: 2020-08-16 15:54:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 3b3ab2b53cb5df3a4d60aeea35cde056 SHA-1: f830bdad180824d1278879170f999f55c1d6ec15 SHA-256: b482a8373d45661e1394577db0de8ef71464c396fbd262528bfb9690fd82bc85
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a link that directs to a known malicious redirector, disguised with a plausible lure related to employee timesheets. The PDF also exhibits characteristics of a link farm, with numerous embedded links pointing to external resources, many of which are hosted on Shopify. The primary malicious link is https://ttraff.ru/pify?keyword=city+of+seattle+employee+self+service+timesheet, which is likely used to initiate a further malicious download or redirect.

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=city+of+seattle+employee+self+service+timesheet In PDF document text
    • http://files.charliescrusaders.org/uploads/1/3/0/9/130968963/tasuvepaxut.pdfIn PDF document text
    • http://petekifu.fliondess.com/uploads/1/3/0/7/130738848/2356251.pdfIn PDF document text
    • http://files.highlanderfootball.com/uploads/1/3/0/7/130775853/1c11a0d.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/1/0436/2466/1154/files/ziburivuwaxetufuma.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0440/3613/files/vebelubajewufidujalunib.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7030/0061/files/mejanowefarulogila.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1739/5611/files/58786336642.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6997/1363/files/76394912831.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/5100/5590/files/72535521076.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1008/8360/files/11097443081.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8212/9320/files/belize_passport_application.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0691/0887/files/64813116231.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 4

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_off000062b1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62B1 5324 bytes
SHA-256: 2dc8d982fbccd4a99d1e14ad9e36c5e9564a11c6df20a7160339e0ab64506235
font_01_sfnt_off000074b6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x74B6 12948 bytes
SHA-256: 43bcfe8ef59172db9e232fa43f730dd423fa774f17e743f309a642b6ec902d21

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