Malicious PDF — malware analysis report

Static analysis result for SHA-256 e61f641a1d072865…

MALICIOUS

PDF

45.2 KB Created: 2020-08-25 03:41:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4264b2b84b395b68760a1053694c20e2 SHA-1: 5c507d2f918853b3a3424fc2fb4a44cab28e0500 SHA-256: e61f641a1d07286553c604f56061d0699ed6e7775ca43f48fb2339026d8dd4a0
194 Risk Score

Malware Insights

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

The PDF file contains a mass of external links, many of which point to a link farm designed for SEO manipulation. One prominent link, 'https://ttraff.cc/pify?keyword=procurement+management+plan+template+excel', is identified as a malicious redirector. This suggests the document's primary purpose is to lure users into clicking this link, likely leading them to a malicious site or download. No scripts were extracted, but the heuristic firings strongly indicate a social engineering attack leveraging a fake document lure.

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.cc/pify?keyword=procurement+management+plan+template+excel In PDF document text
    • http://ribifefes.bigredlocksmiths.com/uploads/1/3/1/4/131453950/6f41299.pdfIn PDF document text
    • http://files.brookesstreetkindynambour.com/uploads/1/3/1/4/131453284/buvaradepew.pdfIn PDF document text
    • http://files.leelyte.com/uploads/1/3/0/9/130969478/wedekaxunive_rovobipifedan.pdfIn PDF document text
    • http://files.ridgeap.com/uploads/1/3/2/7/132741339/2238836.pdfIn PDF document text
    • http://files.islandromer.com/uploads/1/3/0/7/130775978/5663768.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/1/0428/2109/1484/files/97313932809.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7433/0517/files/85675159732.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/8298/7158/files/37563319234.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/3625/2072/files/asahi_beer_nutrition_information.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1827/2423/files/71657703332.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7808/0925/files/htaccess_cache_control.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7764/1116/files/13184169956.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7217/3733/files/molarijupevub.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4116/8283/files/aphis_ppq_form_505.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6651/3818/files/lipuw.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 5

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_off00007364.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7364 5144 bytes
SHA-256: 9f762ac2621630a8a6b31c9f3f447efd1cdce7301a32bbc162663b8f5fedea6c
font_01_sfnt_off000084d1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x84D1 10256 bytes
SHA-256: b065f87221d148569e8a5532a3ac5424f7a9c12f09377c4cac56705a714fddea

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