Malicious PDF — malware analysis report

Static analysis result for SHA-256 8ae60bde9d876055…

MALICIOUS

PDF

43.7 KB Created: 2020-08-01 19:34:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6c4f65e951b4b5a353ff89ed92235105 SHA-1: e5e954cd2018245b312e8615c3b52632274989c0 SHA-256: 8ae60bde9d8760553ddbd613bdbcefffcadff3e2ac0ca3733cd3561a9cdfe3e0
194 Risk Score

Malware Insights

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

The PDF file contains a high number of embedded links, many of which point to a link farm. One prominent URL, https://ttraff.ru/wb?keyword=nlp%20representational%20systems%20test%20pdf, is identified as a malicious redirector. The document body, though heavily obfuscated, contains references to the same URL and other benign-looking Shopify links, suggesting a lure to a malicious site under the guise of providing information.

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=nlp%20representational%20systems%20test%20pdf In PDF document text
    • http://files.literallyanythingmovies.com/uploads/1/3/0/7/130775134/zosase.pdfIn PDF document text
    • http://files.greengateolivegrove.com/uploads/1/3/0/7/130739204/335d30.pdfIn PDF document text
    • http://files.rvmaverick.com/uploads/1/3/0/7/130775635/dfac4eaf501.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/1/0431/0204/4316/files/how_to_push_project_to_github.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4214/3388/files/wesixunubuxutiwuxutex.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3651/5221/files/43533787000.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1566/6840/files/pajejiwelojerosizopek.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7420/8415/files/29298305593.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5331/8306/files/popaledegele.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8762/5369/files/kusotajagu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5183/5801/files/petapibigegugugukoken.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/44240048578.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7066/8453/files/serepibomanufomami.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6590/9160/files/minunuguxava.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4448/6824/files/16728865368.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 8

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_off00006bdf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6BDF 5256 bytes
SHA-256: 73cf48c9bc23372b8fbf65a51b112bd6330e9227682658c898e1719c0537cb76
font_01_sfnt_off00007dba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7DBA 10552 bytes
SHA-256: 9b4674460dadd603a60eadcb1fed4d4df4cfa04049d1f9e926808384cee04640

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