Malicious PDF — malware analysis report

Static analysis result for SHA-256 200b05f436617242…

MALICIOUS

PDF

51.8 KB Created: 2020-09-11 07:30:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 027934619995af0b14c50a8426ffb28b SHA-1: e0b512bbbdd6e84a897be0745d7febc755b28e18 SHA-256: 200b05f436617242fa529430f74b4cc2488baeea9ec02cd0bf31217ca9ee1313
194 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to external PDF files, suggesting a link farm or SEO poisoning tactic. One critical heuristic identified a link to known malicious redirector infrastructure. The document body, though partially corrupted, contains text related to a 'John Deere 325 skid steer service manual', which is likely a lure to encourage users to click the malicious link. No scripts were extracted from this sample.

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.cc/wb?keyword=john%20deere%20325%20skid%20steer%20service%20manual In PDF document text
    • http://files.brookespatol.com/uploads/1/3/0/7/130738928/nuriwedi_xikodezafetifas_beruxirududo_bixeg.pdfIn PDF document text
    • http://fazipixa.benbibleinsta.com/uploads/1/3/1/4/131453870/659092.pdfIn PDF document text
    • http://files.rinsart.com/uploads/1/3/1/4/131411688/3706162.pdfIn PDF document text
    • http://files.charmcitypetcrematory.com/uploads/1/3/2/7/132740352/jodilosorelew-tifirukulamul.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/1/0463/7717/3147/files/tizunovedibasevukoxu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8651/9195/files/70167397004.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6635/8934/files/35396825313.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4612/6247/files/antivirus_avira_pro.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0985/1048/files/bugokaxiz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3245/3015/files/danivunigegudojewo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2528/5791/files/dukuwilugepewulizibexanu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8942/8637/files/mubupovukewapipibemi.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 4

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_off000085b8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x85B8 5712 bytes
SHA-256: e8ef890acb772c9f9b2c532b81956ae25fb1bb4da3a9717df5d752f24d020214
font_01_sfnt_off000098f9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x98F9 13236 bytes
SHA-256: 345f7d09bf6de06d93c203752e8daff2da30b49d915b8329e94eecc7873e5f5c

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