Malicious PDF — malware analysis report

Static analysis result for SHA-256 0ddcb4c483149e12…

MALICIOUS

PDF

39.2 KB Created: 2020-08-18 13:29:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ec4a77a4061d0e0d7f4ec56c1c4309b3 SHA-1: 1dae3b7f74048916e706d8db8170215483f8a0c6 SHA-256: 0ddcb4c483149e1229e9669bf0490a625ec84a230b081580e1268464b8e710bd
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, many of which point to a redirector service known for malicious activity. The document body, though partially obfuscated, includes the URL 'https://ttraff.cc/pify?keyword=statutory+auditors+report+format+2019', suggesting a phishing or scam lure. The ML classifier also strongly indicated maliciousness.

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=statutory+auditors+report+format+2019 In PDF document text
    • http://files.ammsband.org/uploads/1/3/0/7/130740211/dowivupidopi_jikejoz_xoposobuweganuz.pdfIn PDF document text
    • http://papex.wanderlens.ca/uploads/1/3/0/7/130775934/6149353.pdfIn PDF document text
    • http://files.thoroughlymodernmaker.com/uploads/1/3/1/6/131606330/jidaf.pdfIn PDF document text
    • http://files.firetrailers.com/uploads/1/3/0/8/130814043/venokiwekosotatutu.pdfIn PDF document text
    • http://mezisu.seanodonnellartworks.com/uploads/1/3/0/8/130873851/566ad0e6574e49.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/1/0430/7389/6602/files/kikukakezo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2539/8945/files/algebra_questions_by_abhinay_sharma.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7375/7603/files/38912300883.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2469/4939/files/96704014675.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/19189676900.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0452/3737/1037/files/programming_abstractions_in_c_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7545/2569/files/booking_revolution_wrestling.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/3651/4216/files/pudoradijeborozepefeg.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4162/8053/files/31501644431.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1513/3605/files/gilawogefixilazavezuxodos.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_off00005ada.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5ADA 5844 bytes
SHA-256: 27941e608d99371ca396ecc24f013c3f7cdd589f1ae9083cbd1332528712b047
font_01_sfnt_off00006eaf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6EAF 9736 bytes
SHA-256: 5c259032a0a40617300b328ec9b7b8b25c94d805cbdcd6fe07a571c6412c3c97

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