Malicious PDF — malware analysis report

Static analysis result for SHA-256 00e3d86a12487b4b…

MALICIOUS

PDF

38.4 KB Created: 2020-09-18 16:00:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: acff0dc7acf0c40fe820eb86bf4adb4d SHA-1: 5b1f7706a2407b3ff3c3186d0196c2d67b233fd1 SHA-256: 00e3d86a12487b4b094688d7533b5def48ed8355289dd9f9a99dcc32844b5bb0
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple embedded links, with a primary redirector URL identified as malicious. The document body, though heavily obfuscated, contains the same redirector URL, suggesting an attempt to drive traffic to malicious infrastructure. The presence of numerous external PDF links points to a link farm or SEO manipulation tactic to disguise the malicious intent.

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.club/pify?keyword=national+alpaca+day+ireland In PDF document text
    • http://files.fibrechick.com/uploads/1/3/2/6/132681812/gedivuzexix_zukovelotewe_zelepev.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://c790d833-4993-47be-b654-542715577501.filesusr.com/ugd/f67134_ab63068a80704835be8fba31317de24e.pdf?index=trueIn PDF document text
    • https://ba80a160-7124-463f-ab93-677da9b96ac9.filesusr.com/ugd/a421e3_2a23640b728f4ab598e3287562d6815b.pdf?index=trueIn PDF document text
    • https://bb9e86e5-610d-4815-b0bf-b93a95217b8f.filesusr.com/ugd/3615fb_2d7b521bce3449a9b57c326d1b06f5a2.pdf?index=trueIn PDF document text
    • https://e542f732-5fb1-4646-8bf5-ee6cda885800.filesusr.com/ugd/9d66c7_76182f65712f402ba52967883094efd8.pdf?index=trueIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/wefudebavisizaku.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4977/1427/files/vosajewezixedukuzugeba.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/5064/5157/files/miwojibekepabose.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8456/2084/files/2671232817.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0769/7305/files/rolis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0531/2154/files/20861282756.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 1

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_off00004d0b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4D0B 4748 bytes
SHA-256: 451141c0ab446d61593b87d2739d71cbcb84b71175c1838b2682175bb90b7ca8
font_01_sfnt_off00005d31.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5D31 9984 bytes
SHA-256: 795fc11f7b5538b0425e10edd3240f5e14c338c99a2539c620315ee1cda0f45b
font_02_sfnt_off00007f4d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7F4D 4324 bytes
SHA-256: 9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2

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