Malicious PDF — malware analysis report

Static analysis result for SHA-256 205c9dc7613b605e…

MALICIOUS

PDF

37.2 KB Created: 2020-11-05 02:41:23 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-07-20
MD5: 8d8eebd46f83c886704524dab1abfdea SHA-1: 8266fe6f2c03a0818a4434c5285f9a8a4d608007 SHA-256: 205c9dc7613b605eae9f8f26502b9367cd7956e8c631c32f65012351fbedb6d1
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://gettraff.ru/wb?keyword=tnx%20index%20graph In PDF document text
    • https://pejopazuzaguwoz.weebly.com/uploads/1/3/2/8/132815183/6b59573d6616c62.pdfIn PDF document text
    • https://s3.amazonaws.com/jebokizez/60521332701.pdfIn PDF document text
    • https://s3.amazonaws.com/zifozujiwi/kugezamofibajut.pdfIn PDF document text
    • https://totixibepetuter.weebly.com/uploads/1/3/4/3/134345693/vureka.pdfIn PDF document text
    • https://s3.amazonaws.com/nijosinizo/first_alert_co600_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/kisimujuk/american_bulldogs_johnsons.pdfIn PDF document text
    • https://dibozavo.weebly.com/uploads/1/3/4/5/134501923/numetanejujoj.pdfIn PDF document text
    • https://tevumusavobe.weebly.com/uploads/1/3/4/1/134108657/likok.pdfIn PDF document text
    • https://s3.amazonaws.com/xakapudakadu/pakiwebibu.pdfIn PDF document text
    • https://s3.amazonaws.com/metubevozisul/ancient_egyptian_prayers.pdfIn PDF document text
    • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off000045a1.bin)
    • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off000045a1.bin)
    • http://www.daltonmaag.com/In extracted file (font_02_sfnt_off00007ac3.bin)
    • 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 extracted file (font_00_sfnt_off000045a1.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000045a1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x45A1 4624 bytes
SHA-256: 4606329f57591e88dfbad0c6e6afbed221922ffcc24819e1ae8ada928f942239
font_01_sfnt_off0000553d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x553D 11032 bytes
SHA-256: a4a28347ecde6a61a0dcc7bfe6b4e5fbabfb7280e9b8a5cb50ce4584e5dc9f78
font_02_sfnt_off00007ac3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7AC3 4324 bytes
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e