Malicious PDF — malware analysis report

Static analysis result for SHA-256 3805a07308f7882e…

MALICIOUS

PDF

56.5 KB Created: 2020-11-07 01:39:04 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-01-11
MD5: 7d0fcf3f53824fbb7685a5e046fb95f7 SHA-1: fb1015c07a9ead152b613ec00524555165d27e5a SHA-256: 3805a07308f7882eda362edbdb66e95463d801b8d664ebb985ded71a281a0bbf
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://traffset.ru/aws?keyword=how+to+get+to+cinnabar+island+red+version PDF link annotation
    • https://wefamojugibe.weebly.com/uploads/1/3/1/1/131164519/baxabusojuv.pdfIn PDF document text
    • https://dutitujazekap.weebly.com/uploads/1/3/0/8/130814390/zikarab.pdfIn PDF document text
    • https://rurusoweloxefug.weebly.com/uploads/1/3/3/9/133989150/6804219.pdfIn PDF document text
    • https://vekaluledezo.weebly.com/uploads/1/3/4/2/134235689/3160876.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/248f182c-2bac-4b77-9b50-518629c384dc/prop_examen_college_kahuta.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/050f5ec0-e057-4c51-afd9-aad44e7b2751/guwuloroxanesabamobof.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8d19adec-0402-42ed-86f0-16695a87e146/adler_orchestration_workbook.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/066af4f5-418d-45ca-8e49-1598f2fcb5c9/75315715062.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ca694237-d6b8-497c-9b0c-991d62eca2cb/crash_course_psychology_worksheets_free.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d0b64a7a-e5a2-49b5-9b88-a1f1d544530f/nimilumoxiwebemitevim.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3ca42e6c-10b9-4c36-af5b-e895f5a5cd00/nigade.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fec1965e-c09d-4232-9f6d-67167a4f0f1e/fnaf_world_halloween_edition.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/08afef5b-a223-4831-bb71-3790c7a19f7c/71059494283.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c8a984e5-e520-43ef-8309-24ba32ed2f10/past_perfect_simple.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_off00009d8b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9D8B 5360 bytes
SHA-256: e80fdd42eb063e701210dbf91011b55cf5ac057c9a4d8d380095ebd9b28b2d08
font_01_sfnt_off0000afeb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAFEB 10844 bytes
SHA-256: 044dde3235bbd53ef105462f3db7e681373d68d723a3e5a8da7147276400dc70

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