Malicious PDF — malware analysis report

Static analysis result for SHA-256 41e6487d9d6dbddf…

MALICIOUS

PDF

48.7 KB Created: 2020-08-14 19:33:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 2206365f31f27b30b190e1ed42de38f8 SHA-1: eb102636a698571d6146f92a039c1bd478c43252 SHA-256: 41e6487d9d6dbddfd93ed2708ced2776aff92ce3e32b6090d50048f535274b56
202 Risk Score

Malware Insights

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

The PDF contains a mass external link farm, with many links pointing to Shopify domains and one critical link to a known malicious redirector. The document body, though heavily obfuscated, contains text related to 'blank promissory note template pdf', aligning with the SE_INVOICE_LURE heuristic. The primary malicious IOC is the redirector URL, which likely leads to further malicious content.

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=blank+promissory+note+template+pdf In PDF document text
    • http://jirigu.mranselm.com/uploads/1/3/1/4/131453114/a2dcfdb55.pdfIn PDF document text
    • http://files.stonypointfarm.com/uploads/1/3/2/6/132680827/dabesubufomafalugibi.pdfIn PDF document text
    • http://files.novadesignandbuild.com/uploads/1/3/0/7/130740044/lofidogovubebad-fanijopeve-zogew-mobezovobo.pdfIn PDF document text
    • http://files.midatlanticgsmdc.com/uploads/1/3/1/3/131381720/gaxamenanamaw_vojirom_noxoj_notikisudojipu.pdfIn PDF document text
    • http://files.membraneemulsification.com/uploads/1/3/1/4/131483020/4952308.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/1/0429/7208/6435/files/node_base64_encode.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/2964/0854/files/27197210423.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3169/1421/files/80380520467.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0668/1497/files/64461285196.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1903/5033/files/57995324010.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7321/6411/files/tamutedizoj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8129/3221/files/zunoniresasapikuf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6470/4665/files/ranger_5e.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0448/2092/2528/files/circuito_integrado_cd4017.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5328/4519/files/sony_ericcsson_w580i.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8790/4411/files/nepilojakesujojidonufil.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_off00007fa8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7FA8 5404 bytes
SHA-256: d254629dd933d2787512619f8f1d9c993c572545ee4ac4bb44a437b3f688dcab
font_01_sfnt_off000091f7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x91F7 10548 bytes
SHA-256: 4c3a3b13da9a2a76fc94ba27d4b845f734630929f3f65c5e9f122544af077ede

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