Malicious PDF — malware analysis report

Static analysis result for SHA-256 c1eeddaa3aef5cd2…

MALICIOUS

PDF

44.3 KB Created: 2020-08-22 09:16:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 053eefd3caf4876d1ac5cb1ae1134705 SHA-1: 25bb1de96494928e91e95a523e0020632dfe7180 SHA-256: c1eeddaa3aef5cd25127e0aa5691a38309a6b15541958cd7cc40c2cad1b0b236
194 Risk Score

Malware Insights

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

The PDF contains a significant number of embedded links, with a critical heuristic firing indicating a link farm pointing to a known malicious redirector. The primary malicious URL identified is https://ttraff.ru/pify?keyword=baruuk+build+0+forma. The document body contains garbled text and references to 'wkhtmltopdf', suggesting it was generated programmatically. The presence of numerous links, including those hosted on Shopify, indicates an attempt to distribute malicious content or redirect users to phishing or malware download 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=baruuk+build+0+forma In PDF document text
    • http://files.breedingforthefuture.com/uploads/1/3/2/6/132681566/sutavumuz.pdfIn PDF document text
    • http://files.simmons4house53.com/uploads/1/3/0/7/130740571/0f92152285bd6.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/1/0439/2170/3067/files/22234932434.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6443/3566/files/nakudonebetixapuxaje.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/9786/3832/files/wezarozowatovaj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5847/0822/files/38935735507.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8624/0162/files/aprender_a_leer_espanol.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0128/2719/files/the_duff_kody_keplinger.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8793/7179/files/36064608732.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9558/9013/files/6311871197.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5936/3488/files/hymns_piano_sheet_music_with_letters.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 8

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_off00005b9e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5B9E 5268 bytes
SHA-256: f3ab44023ebfdd6b326790721611ddb9b0b19d741f71b68a9c37a375c406377a
font_01_sfnt_off00006d76.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6D76 10020 bytes
SHA-256: 998c139fa0260fb4c50499da71336bf08c9a3f8df43a118cfe631350d1d8cd22
font_02_sfnt_off00008fec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8FEC 16108 bytes
SHA-256: 6bf102e3b6f02edc66f81286f32fa0ce54e16db93fea414d2817afcdfc2f2ec8

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