Malicious PDF — malware analysis report

Static analysis result for SHA-256 950a50c4dfa553bf…

MALICIOUS

PDF

60.8 KB Created: 2020-07-25 20:30:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4fe1b8f1e7b375e89ba699fbc1a30178 SHA-1: b93f9ca5bdcd68063017bca034689390494de484 SHA-256: 950a50c4dfa553bfc510d9d93c2d6a9cb32fc1cf75f232447a44402666e9a0d5
194 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for PDF_MALICIOUS_REDIRECTOR_LINK, indicating it points to known malicious infrastructure. Additionally, PDF_SEO_LINK_FARM suggests a large number of outbound links, likely for SEO manipulation or to host further malicious content. The document body, though heavily obfuscated, contains text related to 'child protection nsw reporting', which is likely a lure to encourage users to click the embedded 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=child+protection+nsw+reporting In PDF document text
    • http://files.theitalianbridge.com/uploads/1/3/0/9/130969825/77f2113.pdfIn PDF document text
    • http://files.albionhca.org/uploads/1/3/2/8/132815063/dadomajewikur-jaridudilifefow.pdfIn PDF document text
    • http://files.theblinddogranch.com/uploads/1/3/0/7/130740429/8591422.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/1/0430/7514/1794/files/pelogejelijosijeloto.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5296/6812/files/65790967126.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4504/4892/files/supexewozapad.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3802/3592/files/gimiz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/78046530146.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1350/3133/files/salinudezavegujo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7981/1750/files/19609406275.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4420/8797/files/45413501883.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0201/1548/files/2947324879.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5673/4109/files/38015903866.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7539/3944/files/95975902284.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 4

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_off0000b213.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB213 5028 bytes
SHA-256: c523beb84dced72a657b99a9e8d85a6329f3ce5b126035107bc13e51b4210db0
font_01_sfnt_off0000c337.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC337 10096 bytes
SHA-256: 08b7f7ad27ce1c265a1e255c57624743e33f954cc7d4f0a52f9ecb64deb0b95a

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