Malicious PDF — malware analysis report

Static analysis result for SHA-256 1ef6ff98a84296e4…

MALICIOUS

PDF

94.1 KB Created: 2020-08-03 19:15:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d5107e2594f7a0ce4af2f5264ef4de85 SHA-1: cc1baaee3312249d51659bf974ea900b7e26691b SHA-256: 1ef6ff98a84296e463747188e18768838156996695aa15432b34ee80b2e768a9
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a heuristic firing for PDF_MALICIOUS_REDIRECTOR_LINK, indicating it points to known malicious infrastructure. Additionally, PDF_SEO_LINK_FARM suggests a link farm strategy, with many embedded URLs pointing to various domains, including the primary malicious redirector. The ML classifier also strongly flagged this PDF as malicious. The document body contains text related to 'Warhammer fantasy lizardmen army book pdf' and the malicious URL, suggesting a lure to download a fake PDF.

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=warhammer+fantasy+lizardmen+army+book+pdf In PDF document text
    • http://files.minilivestock.com/uploads/1/3/2/7/132740415/38a223c.pdfIn PDF document text
    • http://files.cubabarbers.com/uploads/1/3/1/4/131453555/7cab8e9f2dea.pdfIn PDF document text
    • http://files.sheroamswild.com/uploads/1/3/1/4/131438389/4677316.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/1/0437/0271/4533/files/jusuzuwew.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3077/2901/files/wibejadudag.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3287/7976/files/muzopu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/79265304831.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7673/0528/files/rovovamodolesasatol.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/livoxigugefeguvon.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8974/0441/files/74502403444.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8370/3206/files/luvutalanopijomakel.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9806/2501/files/98848029112.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5393/0904/files/87221929311.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5309/5844/files/bulovufosukara.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_off000133df.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x133DF 5648 bytes
SHA-256: c1554a73745a24c06eef6cfeb0903aac3f4062fc11fe2f1b61e3fa55555f19e7
font_01_sfnt_off00014703.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14703 10440 bytes
SHA-256: c0d8010d9428d67e7a6ba6e4341c144f99f39e369972d781f4e5ca89b80cd5d1

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