Malicious PDF — malware analysis report

Static analysis result for SHA-256 dd9b9794b2ffe6dc…

MALICIOUS

PDF

44.2 KB Created: 2020-08-05 08:49:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 1c929172cb3dbffb13d8f71a59ea3806 SHA-1: 27d368c00a67093ab2f1a51e839661e7b85fff70 SHA-256: dd9b9794b2ffe6dcefaaabb9b96922ccb7523d7bc2387ea0665135ca365d980d
194 Risk Score

Malware Insights

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

The PDF contains a link farm pointing to numerous Shopify URLs, likely for SEO manipulation, and a critical redirector link to ttraff.ru. The ML classifier strongly indicated maliciousness. The document body, though heavily obfuscated, contains the URL https://ttraff.ru/pify?keyword=sales+agreement+letter+pdf, suggesting a lure to a malicious site. The primary attack pattern involves redirecting users to potentially harmful infrastructure.

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=sales+agreement+letter+pdf In PDF document text
    • http://files.jubeeleeglass.com/uploads/1/3/2/3/132303151/zofokexavevazelemew.pdfIn PDF document text
    • http://files.kristiepottertherapy.com/uploads/1/3/1/3/131380788/6a28560f6.pdfIn PDF document text
    • http://files.manishaanantharaman.com/uploads/1/3/1/4/131483154/viniwa.pdfIn PDF document text
    • http://files.rivercliffestates.com/uploads/1/3/1/4/131438499/7897259.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/1/0433/0127/3750/files/59506487200.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3640/8982/files/xibekalefuw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9575/2864/files/64865023199.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3893/3146/files/resabokivekapadetoru.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8259/6008/files/54332541022.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1619/1138/files/94582151149.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3519/7602/files/yamaha_dtxplorer_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7730/4484/files/vugubepiniwexisisijexupuj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0673/8079/files/wamojiforovigo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9671/7992/files/migikep.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7764/8027/files/vosoxavewubovuba.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8353/8333/files/82129701499.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9059/2422/files/56947000764.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 7

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_off00006cdb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6CDB 5464 bytes
SHA-256: 697b533f8dd43763747a42a26efc3be9cce50fd17915a983fd7218c2bee4d523
font_01_sfnt_off00007f5a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7F5A 10776 bytes
SHA-256: 498413c6d9c16b4447022af890a36d5c79bf1f842813aa6977262fffe9bd49dd

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