Malicious PDF — malware analysis report

Static analysis result for SHA-256 1178830628294f37…

MALICIOUS

PDF

45.2 KB Created: 2020-07-31 05:53:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: f9aef0c95eccd9009c203342cfb34d28 SHA-1: 6ee5314c79988f56873b91141f34ea7045a6e921 SHA-256: 1178830628294f37613aaa702ef7392ede7b3550d5abaeb59ab8d2aa1909bfc1
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a link farm and redirects to a known malicious infrastructure, indicating a phishing or scam attempt. The ML classifier strongly suggests maliciousness. The embedded link 'https://ttraff.cc/pify?keyword=calendario+2020+argentina+con+feriados+pdf' is a critical indicator of malicious redirector activity.

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=calendario+2020+argentina+con+feriados+pdf In PDF document text
    • http://files.africangoodwillnetwork.com/uploads/1/3/0/8/130874543/8430650.pdfIn PDF document text
    • http://files.lehoangbichphuong.com/uploads/1/3/0/8/130873894/wobesaritaniwus_wimevezozobos_nivesemapuruke_gufejin.pdfIn PDF document text
    • http://files.hotspurschoolofdefence.com/uploads/1/3/2/6/132696080/3912319.pdfIn PDF document text
    • http://files.peacefulthoughtstherapy.com/uploads/1/3/1/3/131398099/ginevelul-xedanezamedep-wumusimuvixi.pdfIn PDF document text
    • http://files.jchschoir.com/uploads/1/3/1/4/131409442/cb594a7.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/1/0430/6812/9431/files/kidudixasojuwikijetudekam.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4525/6352/files/12257108924.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5824/9376/files/rirogidorupasajoxi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7430/6719/files/44141858526.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/3464/6440/files/gubiluw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7623/1063/files/6234341778.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8828/9694/files/30981442758.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7432/9507/files/ketulemurapadom.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7089/7824/files/15701729291.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6783/4517/files/17950502785.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8857/6661/files/xoxepugamuxigo.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_off000070a7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x70A7 5408 bytes
SHA-256: 7de02d7f07abae0bf0105f2c4d323432e0d2697e293a1ac44916454d496bb079
font_01_sfnt_off0000831b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x831B 10600 bytes
SHA-256: 146ee363a1e1bd9e17e1bc6f941d386d49b2febd744c18f6381f0a8597c333de

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