Malicious PDF — malware analysis report

Static analysis result for SHA-256 975ba95cb1ea8c77…

MALICIOUS

PDF

40.2 KB Created: 2020-08-01 10:18:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 61d920df5f03bdbe1dc55471620e332b SHA-1: f9bdc39ec312fcfc11dd7b56da1d45b62d3b41a3 SHA-256: 975ba95cb1ea8c774c68574a49ea301e8939d893cace11bd508a3791836d38d0
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a large number of embedded links, with a critical heuristic firing for PDF_SEO_LINK_FARM indicating a link farm. One of the primary links, 'https://ttraff.ru/pify?keyword=john+deere+135', is flagged as a malicious redirector. The document body contains garbled text but also includes the suspicious URL, suggesting the document's purpose is to redirect users to malicious infrastructure through these numerous links.

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=john+deere+135 In PDF document text
    • http://files.safgeorgia.com/uploads/1/3/1/6/131606165/kowapudefafi-dagido.pdfIn PDF document text
    • http://files.carnelianpropertymanagement.com.au/uploads/1/3/0/8/130874295/rogubinit-jigufosowo-vofegezeviso-kujuwuxaki.pdfIn PDF document text
    • http://files.sitiaoceanides.com/uploads/1/3/2/6/132682639/664cb0ff5d.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/1/0428/6971/9196/files/54675802342.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7609/1045/files/winife.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8806/8254/files/teporadejigavo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4653/5322/files/xagoferelero.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4755/0119/files/ithaca_m_49.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1987/9068/files/10002208126.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4626/4213/files/xupefalas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/8584587797.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6574/5314/files/lafikuf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1266/1152/files/mikamizoduwu.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 3

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_off00006187.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6187 4824 bytes
SHA-256: 6931ad8b34f13df66f8ec9eed5826fa242565430f2155c4653fde701d8d9c845
font_01_sfnt_off000071f2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x71F2 10236 bytes
SHA-256: 058589bbc2ae412107a6139f92be0b056f993026f786ef99869ec0b8fab6b4ea

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