Malicious PDF — malware analysis report

Static analysis result for SHA-256 396e9b10ecc98aaf…

MALICIOUS

PDF

41.7 KB Created: 2020-08-24 16:26:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ee2559b67fe5243a024787e3edf58811 SHA-1: b3c2bc9658f0faf57d08eaf881a506fd1e875ffa SHA-256: 396e9b10ecc98aafb23ba2cbe023301106037166feba7f46d816708616142f40
202 Risk Score

Malware Insights

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

The PDF contains heuristics indicating it is a malicious redirector and part of an SEO link farm, designed to phish users. The document body, though heavily obfuscated, contains a URL that is also flagged as a malicious redirector. The primary attack vector appears to be a lure to click on a malicious link, likely for credential harvesting or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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=sds+please+answer+this+question In PDF document text
    • http://files.sinkpong.pub/uploads/1/3/1/0/131070459/vekugoruju-lumevutavejo.pdfIn PDF document text
    • http://files.mynttl.com/uploads/1/3/0/7/130740097/ruzisuneri_vunojudimopisan_doxiwodape_xuruxudiboril.pdfIn PDF document text
    • http://files.nanolab.info/uploads/1/3/1/3/131379749/befuraxigufero.pdfIn PDF document text
    • http://kubig.omorikuratau.com/uploads/1/3/1/3/131398091/mijutewisokifob.pdfIn PDF document text
    • http://jovewati.eunsooklee.org/uploads/1/3/2/8/132814930/lulemovuki-kidabubajejupew.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/1/0431/6859/6123/files/wuwukawivemuwiviro.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8996/0865/files/corolla_hatchback_manual_review.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2952/7719/files/comic_strip_template_free_printable.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7473/8586/files/sakepafasoneja.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0466/4459/2805/files/32096677593.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0083/9842/files/mozijoladifosajasemut.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8947/8307/files/punof.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/8516/6760/files/30708189735.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_off0000643b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x643B 5368 bytes
SHA-256: a75ca9d52b55ad313bc8f5e956c7ad183782f732b01f06d408afa7a41b3c5d09
font_01_sfnt_off00007678.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7678 10300 bytes
SHA-256: 916c673e2084eba28ec8779f2ed624813e21ee77f0676cd44dc08189f6565736

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