Malicious PDF — malware analysis report

Static analysis result for SHA-256 610e50e134c01eeb…

MALICIOUS

PDF

42.4 KB Created: 2020-08-23 11:26:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: dd512ba58ccd57049a7bd2b01643e8c5 SHA-1: b18bf2bfd4b4576ead872a42244ff456fc1692b9 SHA-256: 610e50e134c01eeb09beab8361755ef7eb55d9ad4c7aa2dc4d401852aad10717
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1204.002 Malicious Link

The PDF contains multiple heuristics indicating malicious redirection and a link farm, with a critical finding of a link to known malicious redirector infrastructure. The document body, though partially obfuscated, contains the text 'Grim stroke hero guide' and the malicious URL 'https://ttraff.ru/pify?keyword=grim+stroke+hero+guide', suggesting a lure to a phishing or malware distribution site. The presence of numerous PDF links, many pointing to Shopify, further supports the link farm and redirection attack pattern.

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=grim+stroke+hero+guide In PDF document text
    • http://files.dakeynediscengine.com/uploads/1/3/2/6/132695734/buvoradipipeko_vinutikixibases_xipugofomawezo_sozikove.pdfIn PDF document text
    • http://files.blackberrycreek.org/uploads/1/3/0/9/130969645/822703.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/1/0433/6254/9910/files/ancient_history_books_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0327/3628/files/29892589186.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/8590/3525/files/81289655613.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8451/3440/files/pipijerase.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6019/1651/files/vupabilokinudejufe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7093/8533/files/23481800161.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2702/9400/files/swing_power_generators.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4077/6090/files/72873846066.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/4518/0824/files/3266014175.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 2

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_off00006a75.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6A75 5092 bytes
SHA-256: 8e6bc6c69d39c2804401b30800c16828ada98da5f2aa75831da6869f222a8a6a
font_01_sfnt_off00007ba7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7BA7 9852 bytes
SHA-256: 41eed3b15b2de58d7c1c59deae50ae5761f1116893e268ca9b891f0cdb0d884c

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