Malicious PDF — malware analysis report

Static analysis result for SHA-256 c415568ad1c6f990…

MALICIOUS

PDF

47.8 KB Created: 2020-08-08 11:32:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 60dd0f05dd3165f6ebfed2250e0af9de SHA-1: 76b174d88b0312b3d045990a82b4ab4904c1349e SHA-256: c415568ad1c6f990e177b732560701d6504c95713a2666ee1a569b4346e07e60
202 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to ttraff.ru. Additionally, it exhibits characteristics of a PDF link farm, with numerous links to external PDFs, many hosted on cdn.shopify.com. The document body, though partially garbled, contains the URL that is also present in the malicious redirector. This suggests the document's primary purpose is to redirect users to malicious content via the ttraff.ru domain.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=cuales+son+los+derechos+humanos+laborales+pdf In PDF document text
    • http://files.darkwarlosgames.com/uploads/1/3/1/3/131379789/3861830.pdfIn PDF document text
    • http://files.riverwoodwinery.com/uploads/1/3/2/6/132695525/vadote-tiwibakoj-fusixowo-nofiwibevos.pdfIn PDF document text
    • http://pogumevek.missionpilgrims.com/uploads/1/3/1/6/131637881/74f8f313585135.pdfIn PDF document text
    • http://files.lizwalkerart.com/uploads/1/3/1/0/131071167/jopitarate.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/1/0433/6815/3253/files/80849609240.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9272/9246/files/xikuredizadafegazela.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2588/2518/files/36780449428.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4456/9242/files/21190256529.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6930/8061/files/34930604394.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6640/9638/files/78649311353.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0455/3277/4565/files/karmasangsthan_bengali_news_paper_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0386/1416/files/77895242537.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8032/7076/files/tuzabuwinufokisabiteza.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5679/9648/files/didixepogu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9213/2508/files/jisuxak.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_off00007b30.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7B30 5440 bytes
SHA-256: 7014b49f7b7195a840abbabc5220745f4c739a0ef41e4f0792811a890a5d57cc
font_01_sfnt_off00008d79.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8D79 10756 bytes
SHA-256: 27ff90053a987c89db56f664dc9e84802fec2eeb40207dd2d27bbfa16ba31bda

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