Malicious PDF — malware analysis report

Static analysis result for SHA-256 ecd82189ad4b6d90…

MALICIOUS

PDF

40.6 KB Created: 2020-08-23 17:44:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ce63dd2150ef11ccafe88b7996717941 SHA-1: 400f91a071a9bcab22c22c94adbf1825bc9ace0b SHA-256: ecd82189ad4b6d9016cb7c977200750f409f90431837e0976e3e1db5a1c59992
194 Risk Score

Malware Insights

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

The PDF contains embedded links that redirect to malicious infrastructure, specifically identified as a redirector for phishing or malware distribution. The document body, though heavily obfuscated, contains text suggesting it's a lure for an 'Edexcel candidate declaration form'. The presence of numerous external links, many pointing to Shopify, suggests an attempt to create a link farm for SEO manipulation or to host malicious content. No scripts were extracted, but the primary attack vector appears to be social engineering via a malicious link.

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=edexcel+candidate+declaration+form In PDF document text
    • http://files.virlinafuture.org/uploads/1/3/1/3/131378993/manot_forigore.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/1/0435/5106/4228/files/67211733254.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5573/4166/files/15378168891.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0463/1825/6288/files/73748223351.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1304/5398/files/37220918612.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6195/0117/files/apache_tomcat_8._5._37.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7031/4903/files/jayco_owners_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7873/7302/files/rastafarian_history_pdf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4184/1575/files/vizekudori.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2965/9797/files/korodexul.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2312/3100/files/complete_tutorial_of_ms_office.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8014/6339/files/faralasut.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7084/9181/files/libipiwu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9814/4932/files/callese_y_venda_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/6244/2661/files/rawoborozo.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_off00006194.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6194 5016 bytes
SHA-256: c182d139e1d4cfcc34e9f07d1a6695cd6f0d0a3c3cdd5e83951a7f9037083eb8
font_01_sfnt_off0000728a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x728A 10172 bytes
SHA-256: a302a81480c757c79d34e2a00cdab019d4a564e3e9a06d9259ac4e117a0856b2

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