Malicious PDF — malware analysis report

Static analysis result for SHA-256 782e91077bfc1581…

MALICIOUS

PDF

49.9 KB Created: 2020-08-23 21:12:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 565f7d5418ef9c9cd8bcf4e6ad109cf5 SHA-1: fcc286503c1966f23b40cbb7dca0b31623dd15d1 SHA-256: 782e91077bfc158172a462b9ae36bc79b93a781f146ca49e1516e0df93ed1e2b
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1203 Exploitation for Client Execution

The PDF contains embedded links that point to a malicious redirector, identified by the heuristic PDF_MALICIOUS_REDIRECTOR_LINK. The document body, though heavily obfuscated, contains a reference to 'payroll management software free' and the malicious URL, suggesting a phishing or scam lure. The ML classifier also strongly indicated maliciousness.

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.ru/pify?keyword=payroll+management+software+free In PDF document text
    • http://files.wesleyantheology.com/uploads/1/3/1/1/131164156/jilow.pdfIn PDF document text
    • http://tajebiwe.tessacase.co.uk/uploads/1/3/1/4/131407241/ecffad.pdfIn PDF document text
    • http://files.donaghtruaghcommunityemployment.com/uploads/1/3/1/1/131163540/4ec11493.pdfIn PDF document text
    • http://pawat.xcores.org/uploads/1/3/0/8/130814229/zozegixasu.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/1/0437/1320/0278/files/sufulugatodafilefafobu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0450/3309/5326/files/uses_of_computer_in_different_fields_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5679/9647/files/consequentialism_and_non_consequentialist_ethics.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7973/8278/files/fitawozenaxejobirog.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9227/1519/files/27964825706.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0563/9836/files/vevoterixizeneperasapu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5158/1591/files/velakepitunuxe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/tovaje.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 8

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_off000071f8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x71F8 5280 bytes
SHA-256: 78baf08ae1f7028da374d641f6ed7b34ff5e18849381752a0e1ab50b9016e555
font_01_sfnt_off000083ee.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x83EE 9800 bytes
SHA-256: 10a181e6ada3dce382498c39bb4adaa6cd1e70955ce9e6f91983d39c6825b2f7
font_02_sfnt_off0000a5b0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA5B0 16144 bytes
SHA-256: 764fe263e68fd20aff2bbd96e69f5a400d440299d02096befa162391f913c7cf

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