Malicious PDF — malware analysis report

Static analysis result for SHA-256 c182e2829d018cd6…

MALICIOUS

PDF

34.8 KB Created: 2020-08-23 00:48:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: 98b69d7396a18668a840e1b384075bc4 SHA-1: f456b72c3086ae32a7c9887b5cb38efbb42b2d3e SHA-256: c182e2829d018cd6c06401601761b51a722d91294a77b4127919673061a834d5
194 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, with a critical heuristic firing indicating it points to known malicious redirector infrastructure. The document body itself is largely obfuscated but contains a URL that matches the redirector. The presence of a large number of external PDF links, many hosted on Shopify, suggests a link farm or SEO manipulation tactic, potentially to obscure malicious destinations. No scripts were extracted, limiting the analysis of direct payload delivery mechanisms.

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=lagu+nusa+dan+rara+bulan+hijriyah In PDF document text
    • http://sufub.katarinaclairecorner.com/uploads/1/3/1/3/131383791/susupad.pdfIn PDF document text
    • http://files.losalamitosunit716.org/uploads/1/3/2/6/132683135/pigaxuvamilesat.pdfIn PDF document text
    • http://files.kristinahooverfineart.com/uploads/1/3/1/4/131454699/dowoxaw.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2072/2080/files/nezefaludibomubomigip.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1569/1675/files/bloomsbury_group.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/wudivilijekeroleve.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9832/4640/files/botswana_tourism_organisation.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2627/6775/files/guidelines_for_colonoscopy_2018.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7335/5419/files/daguzo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3670/2870/files/xadetarojoj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7539/3946/files/rahul_jain_tu_aashiqui_video_song.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4693/6482/files/robureziwobe.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 5

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000040d0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x40D0 4920 bytes
SHA-256: 8f9b27760da4249b785e08836cac06b25ef90931ff1422480c38f610c64ea082
font_01_sfnt_off00005168.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5168 9144 bytes
SHA-256: 3416107fd409761bb00f2b08548ee1a936904bb3563a746dcb0fbcfe4ce870cc
font_02_sfnt_off000070b3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x70B3 4324 bytes
SHA-256: ce7e2e230a41ba6fc2d7d2240890c8289d67876d84a3d076d67c0b48111c8230

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