Malicious PDF — malware analysis report

Static analysis result for SHA-256 b04f05d7012c8dd6…

MALICIOUS

PDF

44.6 KB Created: 2020-08-12 14:49:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-17
MD5: e4c0369406cb52e86d769902b0354784 SHA-1: 3a75475541ecbe5fa3b7961055336952e55389e3 SHA-256: b04f05d7012c8dd6a59449bce85685cd29ccb7fd24143ca1ff4ebd6bb3b089bd
194 Risk Score

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=shri+asharamayan+path+new+pdf In PDF document text
    • http://sefewegiv.keeperofthemountains.org/uploads/1/3/1/4/131453133/d766790.pdfIn PDF document text
    • http://files.montgomerychurch.com.au/uploads/1/3/1/8/131857544/gerubepe_kudeliraji_mifegovisijag.pdfIn PDF document text
    • http://files.citizenkenn.com/uploads/1/3/1/4/131438541/xoveriboje-sozukib-vemomizo-jivorixubek.pdfIn PDF document text
    • http://gofeviz.midviewband.com/uploads/1/3/0/8/130874359/tifutes_siwowadev_tuwen_lesusoji.pdfIn PDF document text
    • http://jowituli.msjanestutoring.com/uploads/1/3/0/7/130739693/e14b2d8c1.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/1/0434/1379/9064/files/46019909122.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3663/0422/files/50538934718.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8568/5153/files/the_flower_of_life_book_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/8170/9206/files/pobejoloxomiwugotulon.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0301/0468/files/76662505142.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0017/6544/files/43139495529.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8501/1871/files/zegoketowojodibox.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0844/0990/files/jeguzam.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9970/9855/files/tamilnadu_anganwadi_application_form.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5429/3402/files/mododediwutolaxapibov.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2135/2606/files/zamomevo.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 5

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_off000070f5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x70F5 5548 bytes
SHA-256: 14ab7bd6436390f2c32024e105fbe2512d345603bc84df2b77638ad048023cfe
font_01_sfnt_off000083c3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x83C3 9908 bytes
SHA-256: 1fa443e2e3623700021222155659856007f240bdd72738f126779ff3740e2358

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