Malicious PDF — malware analysis report

Static analysis result for SHA-256 258d4f7d54ad4647…

MALICIOUS

PDF

38.1 KB Created: 2020-08-24 00:08:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4042e72aa91ba3e0f307f41fee5683a5 SHA-1: b701498b8051debc9c16cd54ed0e2c2ddb186310 SHA-256: 258d4f7d54ad464795d4fa8c00c2e0cceea464f4c237ca2d0cb31326d0763750
194 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to external resources, indicating a link farm or redirection strategy. One critical heuristic identified a link to known malicious redirector infrastructure at 'https://ttraff.ru/pify?keyword=3rd+person+singular+worksheets'. The document body, though partially corrupted, also contains this URL and other Shopify URLs, suggesting a lure to external content. No scripts were extracted from this sample.

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=3rd+person+singular+worksheets In PDF document text
    • http://bederovi.fireantfestival.com/uploads/1/3/0/8/130814855/9659798.pdfIn PDF document text
    • http://files.wildrumpusphotography.com/uploads/1/3/0/7/130776110/943625.pdfIn PDF document text
    • http://files.thegreatlife.com.au/uploads/1/3/2/3/132303010/ed7414f14e6d641.pdfIn PDF document text
    • http://butemir.hydroaid.org/uploads/1/3/2/8/132814930/novikoni.pdfIn PDF document text
    • http://regisif.tammybiggsgymnastics.org/uploads/1/3/2/7/132741024/jobag.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/1/0437/7794/9848/files/lizaseniful.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2947/9072/files/wimidupafun.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1256/2849/files/56906016264.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/1555/8552/files/income_certificate_kerala_online.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0138/7936/files/fipiderokig.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0446/8034/7801/files/25296130859.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0725/4439/files/25829283639.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2286/7880/files/xekabawobibuwetaxoxebipus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6515/4463/files/63913468388.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0972/7912/files/45713116969.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2873/3352/files/11995091747.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7846/5176/files/lukorotepavefut.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 6

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_off0000560e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x560E 5448 bytes
SHA-256: ba1c6e6ab3fda9c0182dac35579e66b909302f3f55f6f3b3b92fc143ef402d11
font_01_sfnt_off0000689c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x689C 10216 bytes
SHA-256: 65a37605b87171cea1ec5d5f55b33416b40335a2a5c372fe19a62386e729b9a7

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