Malicious PDF — malware analysis report

Static analysis result for SHA-256 b057f153f627221d…

MALICIOUS

PDF

41.3 KB Created: 2020-07-22 07:14:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 7b9e86b270fb8267283ebaaa1df86bbf SHA-1: 1324523b758c7961581002c6fbb13e697d1fd6d3 SHA-256: b057f153f627221dc7e668473e9488f99de58d58d2974a932b17fa3d7d4020b6
194 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded URLs, with a critical heuristic firing for a 'PDF_MALICIOUS_REDIRECTOR_LINK' pointing to 'ttraff.ru'. Another critical heuristic, 'PDF_SEO_LINK_FARM', indicates a large number of external PDF links, with 'cdn.shopify.com' being a dominant host. The document body is heavily obfuscated and appears to be mostly binary data, making it difficult to ascertain the exact lure. However, the sheer volume of links and the presence of a malicious redirector strongly suggest an attempt to lure users to malicious content.

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/wb?keyword=manolito%20gafotas%20pdf%20completo In PDF document text
    • http://files.mowmylawnonline.com/uploads/1/3/0/7/130775969/39394aca.pdfIn PDF document text
    • http://files.interiorwellbeing.com/uploads/1/3/1/1/131164386/eb7fcb5638834.pdfIn PDF document text
    • http://files.rrmusicclub.com/uploads/1/3/0/7/130738984/124dc5.pdfIn PDF document text
    • http://files.advancedanaerobics.com/uploads/1/3/0/9/130969555/davam.pdfIn PDF document text
    • http://files.pinchpennythreads.com/uploads/1/3/2/6/132681954/1c7b840.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/1/0428/4976/3494/files/pixuruwa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7133/2767/files/karazawakuwujolowofo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6539/2804/files/35346588589.pdfIn PDF document text
    • https://xibupaxip.files.wordpress.com/2020/07/10245328643.pdfIn PDF document text
    • https://pubexakaja.files.wordpress.com/2020/06/teloboluwawiw.pdfIn PDF document text
    • https://bowekama.files.wordpress.com/2020/06/dujoviwalibabiso.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0453/4692/files/popugolodizi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0024/2077/files/konisasalazatemife.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4827/9957/files/butuxavibuxarazisub.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5987/9841/files/46032371541.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8015/5290/files/33064475244.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0778/6651/files/safox.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6365/7119/files/27695960132.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8085/2383/files/kebozagubijirugu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7996/6628/files/602857967.pdfIn PDF document text
    • https://doi.org/10.26512/belasinfieis.v8.n3.2019.15269In 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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006336.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6336 5172 bytes
SHA-256: 6a4e41f1ed573b5a2a7ef0b1812619267027b3574a7f598ca88b890f64bc73f0
font_01_sfnt_off000074c4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x74C4 10348 bytes
SHA-256: 1d129f4681d164cc0c0098b3e069537e8f4dfe80bbe8a78f1683af05e440b516