Malicious PDF — malware analysis report

Static analysis result for SHA-256 811cbe7744c0a7a3…

MALICIOUS

PDF

73.4 KB Created: 2020-08-06 09:17:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 85c1ef45279a67bcb237500c4e9efd8b SHA-1: e124b6467474adcba6e594254fb4146ead8510fc SHA-256: 811cbe7744c0a7a3fd3a3f83442a6afb6b47109bfabd59ac000b759412075c30
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links pointing to a redirector service, which is a common tactic for phishing and malware distribution. The document body and heuristics indicate a lure for a "cracking the genesis code pdf" which likely leads to a malicious download. 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.cc/pify?keyword=cracking+the+genesis+code+pdf In PDF document text
    • http://files.gillettebikeshop.com/uploads/1/3/1/4/131438044/43e5c67a0f5ad5c.pdfIn PDF document text
    • http://files.allbacksosteo.com/uploads/1/3/2/6/132681863/wejil.pdfIn PDF document text
    • http://penokuma.migidamusica.org/uploads/1/3/0/7/130775169/9527569.pdfIn PDF document text
    • http://files.spiritofthefiddle.ca/uploads/1/3/2/6/132681698/e2c6edddbe3b8.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/1/0431/6502/4416/files/70102816096.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6327/1833/files/78492184060.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9903/7595/files/10322983978.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4614/2114/files/2072579388.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1222/6200/files/pipujomesubitus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/9825/7048/files/78724725113.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1356/0727/files/visawegepevemosom.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0549/9801/files/dafobiterasodanokagosi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5404/7137/files/mugogugomoxiwadifenopuwuv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1141/5962/files/zijuxenirizanidip.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2880/6808/files/54114007678.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6891/4838/files/suzuzela.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_off0000e417.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE417 5352 bytes
SHA-256: 309dfa0d213e599124fde9960f685b69462b45861bb5141e642bd31617017343
font_01_sfnt_off0000f642.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF642 10088 bytes
SHA-256: a0aac27e9623e46a401689e3473d1f5ea2338921fb623a2b0b1641260c1e7609

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