Malicious PDF — malware analysis report

Static analysis result for SHA-256 684318726b59fe77…

MALICIOUS

PDF

43.1 KB Created: 2020-08-03 05:20:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6d00b219e323cad0551b93312fbe2a3b SHA-1: 68aa215e57b2690e575366d598e726cbb4f9332b SHA-256: 684318726b59fe7774eef4e37296064be09e8ea46b96792c547c2323e52b2829
202 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous links, many of which point to a redirector infrastructure designed for SEO spam and phishing lures. The primary redirector URL, 'https://ttraff.ru/pify?keyword=windows+7+repair+disk+download', suggests a pretext for downloading files. The ML classifier strongly indicated maliciousness, and the presence of a link farm further supports a malicious intent to drive traffic to potentially harmful content.

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=windows+7+repair+disk+download In PDF document text
    • http://files.canyonridgepta.org/uploads/1/3/0/9/130969681/82bda9caed5.pdfIn PDF document text
    • http://files.speculos.ca/uploads/1/3/0/9/130969334/5438137.pdfIn PDF document text
    • http://files.yes-to-adventure.com/uploads/1/3/0/7/130775368/marevam-mozebedu.pdfIn PDF document text
    • http://files.pflagladylake.net/uploads/1/3/0/7/130775679/walidupapewux.pdfIn PDF document text
    • http://files.churchilltimberworks.com/uploads/1/3/1/4/131408954/lekinuxid_kixor_davuzalesugo_vonedibuv.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/1/0438/9899/4856/files/63349835138.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7399/3890/files/67659413242.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9394/0641/files/89313120643.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6607/1971/files/genie_pro_88_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8370/1151/files/gorofivik.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7510/7992/files/rename_a_column_in_r.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8693/7253/files/xolanu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/nulanevu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3997/1736/files/16655443343.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8037/5704/files/laxexalujavuninigaxunusu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7204/2661/files/xeletuwejotu.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 6

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_off00006b09.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6B09 5200 bytes
SHA-256: 1b814f01e0cd7ab528b75656e2af3d93dcd65f2eb71b2186ded790b2a61549f1
font_01_sfnt_off00007ce7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7CE7 10456 bytes
SHA-256: 644061313478c1994ebf287f789fcc81282fffca3dd2a6287c5d65514d5090ad

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