Malicious PDF — malware analysis report

Static analysis result for SHA-256 6d1fee9a011abff6…

MALICIOUS

PDF

59.4 KB Created: 2020-08-19 22:25:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a0c0b8469ed56b60d76ffe80eed268ac SHA-1: dada9ea222f9fcb2c2513beeb31c8a687623d5b6 SHA-256: 6d1fee9a011abff6de4b9fdb57a0bdebb86b65be99ccb081420dce653770115a
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, many of which point to a redirector service (ttraff.ru). This indicates a likely attempt to direct users to malicious infrastructure, potentially for phishing or malware delivery. The presence of a link farm heuristic further supports this, suggesting the document is designed to generate traffic to external sites. While no scripts were explicitly extracted, the PDF structure and link farm behavior are strong indicators of malicious intent.

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=guidelines+helicobacter+pylori+eradication+2014 In PDF document text
    • http://files.inyourpacefitness.com/uploads/1/3/0/7/130739910/b2559417161d.pdfIn PDF document text
    • http://bavegike.lifebiblestudies.com/uploads/1/3/2/7/132740214/4850252.pdfIn PDF document text
    • http://files.backcourtballers.com/uploads/1/3/1/4/131483830/cb154c1f0ca93.pdfIn PDF document text
    • http://files.music4peace1.com/uploads/1/3/0/9/130969053/2100019.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/1/0439/0676/0856/files/vugotino.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2065/6545/files/93646826279.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5663/5816/files/bratz_games_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/63537272249.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5951/9387/files/3879477464.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6281/3084/files/wogewofo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3907/2161/files/47088064778.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0273/2448/files/43530761198.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3384/4119/files/13516946585.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1657/5383/files/arrl_repeater_directory.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7992/4893/files/microsoft_word_cracked.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8529/1937/files/wukotet.pdfIn PDF document text
    • https://medlineplus.gov/helicobacterpyloriinfections.htmlIn 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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00009a77.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9A77 5728 bytes
SHA-256: 05d3c252d01d53e57fb49ba796a40b15b4d86e428cea2ff47b0e90728dd8d88a
font_01_sfnt_off0000aded.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xADED 10652 bytes
SHA-256: b52d31f2bbf23931103e9ea1fa4dd30e474cd909e519bfe4592187adc504249a
font_02_sfnt_off0000d210.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD210 4324 bytes
SHA-256: ce7e2e230a41ba6fc2d7d2240890c8289d67876d84a3d076d67c0b48111c8230