Malicious PDF — malware analysis report

Static analysis result for SHA-256 d14fdb47c92b9447…

MALICIOUS

PDF

43.6 KB Created: 2020-08-04 04:58:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 2363eb3049d7db7e3a025c300502ed7d SHA-1: 1383cbb1e7a0149a6ca15c2f45d5c9f97679dee7 SHA-256: d14fdb47c92b9447136905e7b61a8df66252beb6545b2b035660dac2ef23c868
194 Risk Score

Malware Insights

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

The PDF contains a link farm of numerous PDF files hosted on various domains, including a primary redirector URL. The ML classifier strongly indicates maliciousness. The document body, though obfuscated, contains the primary malicious URL and references to other PDF files, suggesting a lure to a malicious site designed to host further 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.ru/pify?keyword=estructura+de+la+administracion+publica+en+guatemala+pdf In PDF document text
    • http://files.ornamentsofexpression.com/uploads/1/3/1/4/131438260/94ea0ed.pdfIn PDF document text
    • http://files.wanderwellfitness.com/uploads/1/3/0/8/130813095/xojenojafepel.pdfIn PDF document text
    • http://files.nicecurb.org/uploads/1/3/1/4/131406181/guxudimedowo_sinijutupojozu_vimegejajix.pdfIn PDF document text
    • http://files.staccounting.co.uk/uploads/1/3/1/3/131397971/pisedegomeva.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/1/0428/9835/8432/files/69296453687.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2015/5037/files/58239168822.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8799/5814/files/fenagirunilirazamajixekis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/0787/2921/files/angular_ui_router_min_js.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7217/5781/files/xibegexola.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4560/0931/files/5273794016.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2166/3397/files/lanitaxanuvetikajosulofe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4916/5734/files/58301039255.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0159/3505/files/duxafile.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/5597/0454/files/candlesticks_patterns.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7079/1573/files/busedo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1962/4870/files/35674231759.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
🗂 Part of campaign: staccounting.co.uk 3 samples

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_off00006845.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6845 5572 bytes
SHA-256: c479e30d42f1e1371f0c965e8f0f06e3dd03d43fd49d999578afeadf0e53e558
font_01_sfnt_off00007b21.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7B21 11204 bytes
SHA-256: 79eeede395761afff21f1e4556512f7eb73c6bb7214fb8c7e900dbc7ff02b032

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