Malicious PDF — malware analysis report

Static analysis result for SHA-256 d571e517b3595962…

MALICIOUS

PDF

43.5 KB Created: 2020-08-08 04:43:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 7ad37f4fb0ae16e87bf8860a42204e48 SHA-1: 9cbc13575165a30318e56287e985114e0041e7e2 SHA-256: d571e517b359596230a27133ca4b36b988ac996a6aadeefdfb2b6d7f17c0aaca
194 Risk Score

Malware Insights

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

This PDF document contains numerous links designed to redirect users to malicious infrastructure, specifically identified by the heuristic PDF_MALICIOUS_REDIRECTOR_LINK. The document body text and embedded link data suggest a lure related to a "F b service department pdf" to entice clicks. The primary malicious IOC is the redirector URL, which is likely used to host or deliver a secondary payload.

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.com/pify?keyword=f+b+service+department+pdf In PDF document text
    • http://files.friendsnorthcreekforest.com/uploads/1/3/0/8/130813094/witawuzibeti.pdfIn PDF document text
    • http://dezuma.gregschroederwrites.com/uploads/1/3/1/0/131069934/tojaketap.pdfIn PDF document text
    • http://files.dorangoats.com/uploads/1/3/2/3/132302876/baramerinupow.pdfIn PDF document text
    • http://vopodin.outspokenmarket.com/uploads/1/3/0/8/130813834/4a9bac8.pdfIn PDF document text
    • http://files.owenstaxlouisville.com/uploads/1/3/1/4/131453633/fupexanigikun-nolasoboj-gadigenerawuz.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/1/0431/5293/3020/files/lileviwakemikekinor.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2598/7741/files/adenoma_hipofisario_tratamiento.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1725/6603/files/digeximipofezukozugex.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7892/7014/files/10166438354.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9484/3298/files/beregiromegakujos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5679/9648/files/bimaxejime.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5059/8562/files/96800217222.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1734/6965/files/genexirod.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1537/2953/files/6542674588.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8221/1733/files/sizefeza.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8580/7269/files/80386667862.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 6

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_off00006a82.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6A82 5424 bytes
SHA-256: 748f4aa7f10c93df57aaaf7046b904a6111595e7e7a08b295fa1250dae5866b3
font_01_sfnt_off00007cd8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7CD8 10704 bytes
SHA-256: c9312abd6295e6b0d7201dcc56777acf22df626686a2a87976e75dfa606a374c

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