Malicious PDF — malware analysis report

Static analysis result for SHA-256 d3d61260b8735864…

MALICIOUS

PDF

53.5 KB Created: 2020-07-28 14:26:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 68423fa29584bfd3d9e376b5443a858b SHA-1: 4a25a259a2de9c98d98c7c8c2f893273f87eee85 SHA-256: d3d61260b8735864c7dcbaa1004b75a4768d4fa38f190825da8804e3a41969f2
194 Risk Score

Malware Insights

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

The PDF file contains a link that redirects to a known malicious domain, ttraff.ru. The document body, though partially corrupted, suggests a lure related to health guidelines. The heuristic firings confirm the presence of a malicious redirector link and a link farm within the PDF, indicating a phishing or redirection attempt.

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=new+guidelines+for+blood+pressure+in+seniors In PDF document text
    • http://files.ladyteeproductions.com/uploads/1/3/2/6/132682134/rivoxifeg.pdfIn PDF document text
    • http://files.minichangeyoga.com/uploads/1/3/1/3/131383775/7b510b.pdfIn PDF document text
    • http://files.mytridentestates.com/uploads/1/3/2/7/132712206/8239059.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/1/0428/4016/2470/files/26914237052.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1141/5965/files/notutubefibanafu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5034/4352/files/20272147859.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9437/5576/files/xozarawenomopimasixoto.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8716/7645/files/woruxazalukojetufax.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4325/0588/files/jojar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8658/5749/files/tobori.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/95181885481.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8450/5498/files/82391609017.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/3033/0016/files/78326072566.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2340/9057/files/pukomil.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0496/0676/files/14147297433.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 7

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_off000094eb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x94EB 5000 bytes
SHA-256: 1005a63bfa0f121c307aa8cbca8c96426ec2ab4e93cd48b6936c6e7c8db26191
font_01_sfnt_off0000a5fe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA5FE 10132 bytes
SHA-256: 6406204819320408fc90c272a6b76890bc37892f78e7f39f6c45958d2ff66791

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