Malicious PDF — malware analysis report

Static analysis result for SHA-256 aa8290d735f68550…

MALICIOUS

PDF

45.6 KB Created: 2020-10-28 18:09:29 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-06
MD5: a12ad53c505ac3b6976a725b7cd618fb SHA-1: f92c03d5a89933de5a12677176505b9e235257f9 SHA-256: aa8290d735f6855081275f893766151843b437547d1fd0fdfa9e39b1f8d19284
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://ggtraff.ru/wb?keyword=atrocity%20act%202015%20in%20marathi%20pdf In PDF document text
    • https://tifubevova.weebly.com/uploads/1/3/4/4/134458665/mirasoso.pdfIn PDF document text
    • https://rozolabo.weebly.com/uploads/1/3/0/8/130814594/2867588.pdfIn PDF document text
    • https://bizetuxerupa.weebly.com/uploads/1/3/0/8/130873791/8743761.pdfIn PDF document text
    • https://gimejexoxixaza.weebly.com/uploads/1/3/1/8/131872185/kirorafagosox.pdfIn PDF document text
    • https://pavowojavujide.weebly.com/uploads/1/3/1/3/131398322/zezosalera_dawamisu_xegiduj_sabar.pdfIn PDF document text
    • https://powizosiki.weebly.com/uploads/1/3/4/0/134041047/logusir.pdfIn PDF document text
    • https://jagozuru.weebly.com/uploads/1/3/4/3/134360529/mazubapi.pdfIn PDF document text
    • https://nipaxibovaj.weebly.com/uploads/1/3/1/3/131379211/2881863.pdfIn PDF document text
    • https://jibotofixox.weebly.com/uploads/1/3/4/5/134502829/b5a6ff831e648.pdfIn PDF document text
    • https://lewejasolon.weebly.com/uploads/1/3/1/4/131437246/bitusibo-narerilubuz-finimibotepogo-wopivurelituda.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/pazifetanegapu/27868033678.pdfIn PDF document text
    • https://s3.amazonaws.com/kavitokolezub/ordering_fractions_and_decimals_from_least_to_greatest_worksheet.pdfIn PDF document text
    • https://s3.amazonaws.com/xanebavifamopez/levasefazedebib.pdfIn PDF document text
    • https://s3.amazonaws.com/vopadofugon/rageselugipepisazirub.pdfIn PDF document text
    • https://s3.amazonaws.com/wibedubosateg/brevini_gearbox.pdfIn PDF document text
    • https://s3.amazonaws.com/kewuxejikiwe/diac_arbitration_proceedings_rules_2018.pdfIn PDF document text
    • https://s3.amazonaws.com/felasorarabipis/xiporusipe.pdfIn PDF document text
    • https://s3.amazonaws.com/tadovu/analytical_reasoning_questions_in_hindi.pdfIn PDF document text
    • https://s3.amazonaws.com/wilugugo/2185744643.pdfIn PDF document text
    • https://s3.amazonaws.com/felasorarabipis/html_to_api_free_php.pdfIn PDF document text
    • https://s3.amazonaws.com/wiwuxot/notice_of_termination_of_lease_agreement_template_south_africa.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

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006417.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6417 5396 bytes
SHA-256: 0d7be7597813c36c143a5e24666336012c918961d72e57568b23d98a4aa8f5e5
font_01_sfnt_off00007644.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7644 10652 bytes
SHA-256: 1c2db94636f95e49a30ec5454ad66acb19d6499f3979b14247f7b5a9e3fdf977
font_02_sfnt_off00009ad8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9AD8 4324 bytes
SHA-256: d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378

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