Malicious PDF — malware analysis report

Static analysis result for SHA-256 832366dd800895e7…

MALICIOUS

PDF

33.0 KB Created: 2020-08-24 07:21:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 8fe020e0a107362e948f1a4904aa8647 SHA-1: 9ccb9ac11d3cfe94c705d95c699502e6d56145eb SHA-256: 832366dd800895e7885f605be2176e6eec3a4e5752d2baaaaa26c09879cf8c4b
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous embedded links, many of which point to redirector infrastructure identified as malicious. The document body, though heavily obfuscated, contains a URL that is also flagged as a malicious redirector. This suggests the primary purpose is to redirect users to malicious sites, likely for phishing or malware distribution.

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=present+perfect+and+past+perfect+worksheet In PDF document text
    • http://files.thequietcone.com.au/uploads/1/3/1/0/131071137/xezerufi.pdfIn PDF document text
    • http://files.inniscarraparish.com/uploads/1/3/2/7/132712358/c05830050c5de.pdfIn PDF document text
    • http://devativ.adolescentidentities.com/uploads/1/3/2/6/132681862/64b925.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/1/0431/4755/9067/files/euro_symbol_latex.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0446/6461/9171/files/lagamifinidixavamoket.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6557/3537/files/44314025525.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9892/2403/files/aadhaar_card_portal_app.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0737/6546/files/chemistry_brown_12th_edition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5308/7911/files/xolexemumet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1251/4204/files/lost_city_osrs_quick_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/2289/8584/files/rita_status_report.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9187/0375/files/luvabilavagokuwafojeni.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7050/2550/files/35715576456.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1918/1978/files/13072601362.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/0900/4952/files/naughts_and_crosses_online.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 3

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_off0000445f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x445F 5368 bytes
SHA-256: 0b491cab74c70a83fb80fd24135885eec788bbb3242079957978339fb2b0b037
font_01_sfnt_off000056a3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x56A3 9484 bytes
SHA-256: d8888524b16be30eda241ff315b9d6d2784be4b160f018a59cf82cb5ea0a2eec

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