Malicious PDF — malware analysis report

Static analysis result for SHA-256 493d9de59fe5569b…

MALICIOUS

PDF

41.1 KB Created: 2020-09-22 10:36:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d356008b2e2d1d7829d86b0a45e4fd75 SHA-1: 6a839e57515ca51974a09dd5ea9608db8a2a3604 SHA-256: 493d9de59fe5569b23c76865ce5400854d7a0093445c2ace23019a8569ab45c0
194 Risk Score

Malware Insights

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

The PDF contains multiple embedded URLs, with one identified as a malicious redirector. The document body, though heavily obfuscated, also contains the same malicious URL. This suggests the primary purpose is to redirect the user to a potentially harmful website, likely for phishing or malware delivery. The ML classifier strongly supports the malicious nature of this 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.link/wix?keyword=admiral+picard+habbo+white+house In PDF document text
    • http://fisidud.idahodea.org/uploads/1/3/1/6/131606345/9918673.pdfIn PDF document text
    • http://files.kansascityamprepair.com/uploads/1/3/1/3/131379510/nazuxop-kewimevavuxabuv.pdfIn PDF document text
    • http://lusaj.eatforliving.ca/uploads/1/3/1/8/131856979/fifujaxubig_judatilalo_jobokapowav_mirexuti.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/1/0432/5349/8019/files/principios_de_quimica_atkins_descargar_gratis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9964/3297/files/best_cheap_android_phone_canada_2018.pdfIn PDF document text
    • https://574f4f87-acbc-4a16-b74d-9f7f4bec16bb.filesusr.com/ugd/610d21_fbed94e43cad498d8611ec1bb1b93314.pdf?index=trueIn PDF document text
    • https://8aef0fa1-9598-4af0-b220-833f4151bffb.filesusr.com/ugd/b9801a_8fd5a34e028d47e59269ec8d897aa825.pdf?index=trueIn PDF document text
    • https://30dcb0aa-a50e-4e3d-ab90-30a7c4301f04.filesusr.com/ugd/113e89_f7bf0ec200364aea95ddc385cf93aaef.pdf?index=trueIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6009/2309/files/47725232900.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2761/1295/files/vewuzudopobafofoforujinez.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2750/4031/files/pimuxojomibigaka.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8070/4405/files/61517102320.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 6

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_off0000628e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x628E 5532 bytes
SHA-256: 3047519658af7cd0b18ca9bfc0d60f888bb90b57582264e1818fe346b639dce5
font_01_sfnt_off00007538.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7538 10128 bytes
SHA-256: f07bffce3a5fe92b659b794290ac7d64aa5fb1ce5f5f26b227c3378c86df728a

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