Malicious PDF — malware analysis report

Static analysis result for SHA-256 5d3589fea766b06f…

MALICIOUS

PDF

60.6 KB Created: 2020-10-28 01:11:53 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-02-19
MD5: 7e590c255d4d184a76c2388af9f23d3f SHA-1: efe263aa024b1d3b56502ccce7a481daf5fa486c SHA-256: 5d3589fea766b06f9c261856213ce02bd98ba76fb0c5ce223c22fe62dd61ca4a
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.me/123?keyword=d-con+ready+mix+bait+bits+lowes In PDF document text
    • https://nipaxibovaj.weebly.com/uploads/1/3/1/3/131379211/8cc936ab6.pdfIn PDF document text
    • https://xifobosakup.weebly.com/uploads/1/3/2/8/132815359/musajozumifek.pdfIn PDF document text
    • https://dedodewoluxo.weebly.com/uploads/1/3/4/4/134402612/redeberojitozuxej.pdfIn PDF document text
    • https://dojarugakafep.weebly.com/uploads/1/3/4/4/134471698/44ab2f76f3.pdfIn PDF document text
    • https://wefamojugibe.weebly.com/uploads/1/3/1/1/131164519/lotinumedamup.pdfIn PDF document text
    • https://nukubutoti.weebly.com/uploads/1/3/2/3/132302768/fivogapu.pdfIn PDF document text
    • https://pepisukuwen.weebly.com/uploads/1/3/1/6/131606293/5029ff21.pdfIn PDF document text
    • https://judemozosuduj.weebly.com/uploads/1/3/4/3/134306717/cd444063f1a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4376101/normal_5f93d733c6182.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4376875/normal_5f8b7ca3c283f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4386849/normal_5f9591d9d5dd9.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/834c54c8-3b1c-4ff0-b4c0-d768f7c5c821/73247376118.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/91c8874e-3eb5-4291-abc3-88e963838437/5399496611.pdfIn PDF document text
    • https://s3.amazonaws.com/fasanag/black_widow_marvel.pdfIn PDF document text
    • https://s3.amazonaws.com/jivuxo/namakam_chamakam_in_english.pdfIn PDF document text
    • https://s3.amazonaws.com/jamokaroxoj/sda_church_heritage.pdfIn PDF document text
    • https://s3.amazonaws.com/potofaw/teronaputajitetoju.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ac92.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAC92 5520 bytes
SHA-256: 6040eb6ec1a451f027a918c16fd6301f33bdb087e59ad28c329c4993918d2c70
font_01_sfnt_off0000bf58.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBF58 11660 bytes
SHA-256: 24dc1b323faee6a6a2c6dd5d902d4093c5794bca8175bad36febd49ce2a5815e

Open this report in the interactive analyzer, or submit your own file for analysis.