Malicious PDF — malware analysis report

Static analysis result for SHA-256 17d7ee55981b9ddd…

MALICIOUS

PDF

45.6 KB Created: 2020-08-03 19:49:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 63621455449160a86fee56c75ab0b529 SHA-1: 470ea755576b6cd0498ef180eda061b214c78bcd SHA-256: 17d7ee55981b9ddd1d6ff3f4ebf4e0c0fdc5cac6615769c0ed5ceca102781f65
194 Risk Score

Malware Insights

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

The PDF contains numerous links, many pointing to a redirector service, suggesting a link farm or SEO abuse for phishing. The primary redirector URL is https://ttraff.ru/pify?keyword=descriptive+language+worksheets+pdf, which is flagged as malicious. The document body, though heavily obfuscated, also contains this URL and other Shopify links, indicating a lure for users to download potentially malicious content. No scripts were extracted, but the PDF structure and embedded links strongly suggest a malicious redirection attempt.

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=descriptive+language+worksheets+pdf In PDF document text
    • http://files.theharbourcc.ca/uploads/1/3/1/4/131437680/cbc217.pdfIn PDF document text
    • http://files.seanjmnewman.com/uploads/1/3/2/7/132712508/salolumadojilinij.pdfIn PDF document text
    • http://xorunepir.tyingtheknotonyourbestdayever.com/uploads/1/3/1/4/131453323/038a2ff852434.pdfIn PDF document text
    • http://files.misfitcrusaders.com/uploads/1/3/0/8/130814672/634f8e.pdfIn PDF document text
    • http://files.c4leaders.org/uploads/1/3/0/7/130740257/wubonesawikepazis.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/1/0438/2218/6656/files/31036363907.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1699/3440/files/girotuditenosel.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8421/8521/files/9653893947.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1136/6309/files/32754859533.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1405/4300/files/xetuzupawavile.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1067/9206/files/34339195753.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3849/8198/files/wawobugisi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/30617095305.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3826/0899/files/puxazuvexebuvog.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7546/0515/files/76403596568.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3159/2092/files/bose_wave_music_system_iii_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7235/6509/files/57322887304.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7763/2154/files/woresojepupu.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006598.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6598 5516 bytes
SHA-256: e0bbd12e28144e00c10ba873858e3e30592bd8ec1a7d9bf2f71309a9e3094be3
font_01_sfnt_off00007867.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7867 10072 bytes
SHA-256: e910ad918a015344d3b3420f420bcf8b42fbb44919b28733f94d6b27c46a2cdb
font_02_sfnt_off00009af6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9AF6 4324 bytes
SHA-256: ce7e2e230a41ba6fc2d7d2240890c8289d67876d84a3d076d67c0b48111c8230