Malicious PDF — malware analysis report

Static analysis result for SHA-256 5fbe7ab835106a7f…

MALICIOUS

PDF

42.4 KB Created: 2020-07-30 09:06:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 7ad33a1538ed0799af7ca9299b54e496 SHA-1: 90cd1a923baa1eb9848a1fd52aaefddaf1f6c573 SHA-256: 5fbe7ab835106a7f936c7feac2be889ca95b67ef21c7d959fa322e1245b60579
194 Risk Score

Malware Insights

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

The PDF contains multiple heuristics indicating malicious redirector links and a link farm, suggesting a phishing or malware distribution attempt. The primary malicious URL identified is a redirector that leads to further malicious infrastructure. While no scripts were explicitly extracted, the PDF structure and embedded links strongly suggest an attempt to trick the user into clicking through to a malicious site.

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=nps+annexure+s5+form+pdf In PDF document text
    • http://files.danielseager.com/uploads/1/3/2/7/132741334/9b2554437f5.pdfIn PDF document text
    • http://files.flyintofirstgrade.com/uploads/1/3/2/6/132681415/534598.pdfIn PDF document text
    • http://files.mdsolutions1.com/uploads/1/3/2/6/132682882/mozuwose-xopisupamo-xomexisozabuvex.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/1/0439/2674/9339/files/1027715056.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8648/7455/files/xovipufovimoxovonugumonul.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2937/2821/files/11478320828.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0538/6647/files/44777030748.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0760/5923/files/disurezipa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/63537272249.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/4923/6118/files/88433178849.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1889/6038/files/69017066188.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3236/3676/files/bajapadogiwolokob.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3573/7764/files/5606389990.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9684/9051/files/35256165118.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9378/6791/files/vebusonepadibiniduw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0982/7231/files/todozekefoxisusajareremo.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_off000069e5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x69E5 5072 bytes
SHA-256: 63317f6402e31d2048a6523cea7d60ec9e3b1d81406aaa8021c13adf20d891c1
font_01_sfnt_off00007b06.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7B06 9804 bytes
SHA-256: 30f1c29539c490dda658678bec973006979eae078d210f5e64f31e73f4e51864

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