Malicious PDF — malware analysis report

Static analysis result for SHA-256 a2727759513e3c2c…

MALICIOUS

PDF

42.3 KB Created: 2020-09-30 03:40:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-17
MD5: fea432e376e628036a7242db8ff3dc4f SHA-1: 62530b4734622e3d4fe99326317ac10659e0bcc9 SHA-256: a2727759513e3c2cb7d28db49629a1e4a845a575c158af1678218d7e3588b9a1
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://cctraff.ru/strik?keyword=mastering+astral+projection+90-+day+guide+to+out-+of-+body+experience+pdf In PDF document text
    • http://files.petpigeducation.com/uploads/1/3/0/7/130738892/683a8b7a69e3f3.pdfIn PDF document text
    • http://files.ironmadegym.com/uploads/1/3/0/7/130775729/vonazinuxerubop.pdfIn PDF document text
    • http://files.pltnutritionandfitness.com/uploads/1/3/2/6/132681763/vikonakulegarar.pdfIn PDF document text
    • http://files.grinterfriends.com/uploads/1/3/2/6/132682076/godutiwibe.pdfIn PDF document text
    • http://lavafume.reeseworship.com/uploads/1/3/0/8/130873851/jabawijowaxu_sewegu_gasubaju.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/066efecb-4b8c-4ea7-8247-370445a4ea0c/gexikugu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/78c6187f-820b-41d8-9c90-209479294140/31863553072.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a141d4c6-c993-4a3c-9528-1ba30fa279ef/zukajiritejegaw.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cf036b28-447c-4dfe-bdef-a5e14d27c7c0/mozegikerijutarikedibep.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4f93ad18-d611-4360-8ec9-07907676b096/dituzodezibevalip.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/63bac344-3162-4550-9b86-fe19be3e8f8c/wagakikagebugowexorusove.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e810d654-1399-45fb-81b9-b55efb19bc76/20729157765.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/010411b2-8d9b-45c2-bc63-96ca32e0ae6c/nepirik.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_off000063b3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x63B3 6044 bytes
SHA-256: 1e8a730fb74c62ae3fdd8a262fa5b81c786493f2d74770c400f724ee0397be84
font_01_sfnt_off00007873.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7873 10532 bytes
SHA-256: 342cee9680f33d8bb07772b8a51c07670778fd2eb08dcb5fee2ac2de38d808d0

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