Malicious PDF — malware analysis report

Static analysis result for SHA-256 94b6d4724af9ddbe…

MALICIOUS

PDF

41.3 KB Created: 2020-08-11 03:10:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: caf218ae3d073f5db1c15c1eab654def SHA-1: e95332c9f6f3b81bac24df3f455edea5f3c48921 SHA-256: 94b6d4724af9ddbef9b7900c1a9eb88e18c7da88a9b6e748798f4b68693079b2
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with a critical heuristic firing indicating a link to known malicious redirector infrastructure. The document body, though heavily obfuscated, contains text related to 'payback period method example pdf' and includes the malicious URL. This suggests the document is designed to trick users into clicking the link, likely leading to a phishing or malware download site.

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=payback+period+method+example+pdf In PDF document text
    • http://lawusa.sunshinefamilyhealthcare.com/uploads/1/3/1/4/131452954/fiparuzekugope.pdfIn PDF document text
    • http://files.savejonesstateforest.com/uploads/1/3/1/6/131606122/sekuxovozegixo-demaxuwez-minagakege.pdfIn PDF document text
    • http://files.dx2hk.com/uploads/1/3/1/3/131383959/madozinaj.pdfIn PDF document text
    • http://files.xlsoftfruit.co.uk/uploads/1/3/1/4/131438353/fazimutopeto.pdfIn PDF document text
    • http://files.ladysarah.org/uploads/1/3/1/3/131398094/348c21100ea2.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/1/0427/8019/7031/files/zijazokojomujasi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2418/7555/files/mojirukedepojilagewop.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8638/0197/files/naturisirigot.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/30553092986.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4296/3613/files/foriwubexapozumodijisoxu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/1538/6789/files/xebejamarimezaraterazatok.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7777/1164/files/road_ranger_travel_trailer_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6055/9013/files/15355922456.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4293/9814/files/sas_zombie_assault_td.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9443/4207/files/bopitopibigulazotadu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1230/9671/files/angularjs_template_injection.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 8

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_off00006216.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6216 5592 bytes
SHA-256: 4a9225ab7546385b3ec9d4bcf293bf3545697bac283d8cff781fe09a8e7c506b
font_01_sfnt_off000074fa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x74FA 10352 bytes
SHA-256: 48aeb9dd8c39b13fb41f23445e49eaad71ee6fdfc33155a41b773cb03bdaa142

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