Malicious PDF — malware analysis report

Static analysis result for SHA-256 c3b922496347fa3b…

MALICIOUS

PDF

40.7 KB Created: 2020-08-28 11:54:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 05fc9d45773e1d0a8784613f20f94d13 SHA-1: a91d5c2c2dbd804b02954d059c5127d7eb7f3c64 SHA-256: c3b922496347fa3b3ed2843acecb4100d270b491b3f3974c753334043eb76740
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a high number of embedded links, many pointing to Shopify domains, but one critical link redirects to a known malicious infrastructure. The document body, though heavily obfuscated, contains the URL that triggers the malicious redirector. This suggests a link farm or SEO poisoning attack designed to funnel users to malicious content.

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.club/pify?keyword=chopsticks+piano+easy+sheet In PDF document text
    • http://files.ilonayoga.com/uploads/1/3/0/7/130776131/befapituwado.pdfIn PDF document text
    • http://juwinaza.nctreasurechest.org/uploads/1/3/1/3/131398140/8929553.pdfIn PDF document text
    • http://files.raglandwrites.com/uploads/1/3/1/3/131398143/9286165.pdfIn PDF document text
    • http://files.jasonleary.com/uploads/1/3/2/6/132683188/kavuf.pdfIn PDF document text
    • http://zuzigana.carolchallis.com/uploads/1/3/1/0/131070420/nalifezitawo.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/1/0438/8660/8552/files/kidzee_franchise_agreement.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0448/0398/1463/files/barter_system_advantages_and_disadvantages.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7208/6423/files/dark_side_of_charismatic_leadership.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1525/6738/files/mupupavorufubinetezu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9353/9482/files/77910116641.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4189/0208/files/3589734804.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/nelafujadodejofit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2422/0321/files/26414895325.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8904/3358/files/22798470834.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4260/2140/files/82777110863.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 8

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_off00006193.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6193 4964 bytes
SHA-256: 4e110f6f4f3625fc1c4d5cf4da879a316035e5f945c45013cf80b5d1dc8c9c35
font_01_sfnt_off0000727d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x727D 10384 bytes
SHA-256: 61b0ea83c2073b9a02ee63874458497b9ec7d0c6bbf782d4a0496eb5f6530705

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