Malicious PDF — malware analysis report

Static analysis result for SHA-256 3f88346c3845e875…

MALICIOUS

PDF

51.1 KB Created: 2020-10-25 03:24:42 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2020-12-26
MD5: 2355a518e743a5685fdb0108e228e7e8 SHA-1: 056a252bd1c2e578b216fe38ef41d866886c09eb SHA-256: 3f88346c3845e8758252ec1cca810a813e7a559889284f4b01e0153583fcd829
124 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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 is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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.link/aws?keyword=du+b.+ed+entrance+exam+syllabus+pdf+download In PDF document text
    • https://cdn-cms.f-static.net/uploads/4368975/normal_5f883f3811b8e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4375070/normal_5f895f0cc23ca.pdfIn PDF document text
    • https://gozekukapitob.weebly.com/uploads/1/3/4/4/134443516/penuserevixejifidefa.pdfIn PDF document text
    • https://zoxuzuxebexot.weebly.com/uploads/1/3/0/9/130969059/pokobu-pidoror-pekirez.pdfIn PDF document text
    • https://jatorogerujew.weebly.com/uploads/1/3/2/7/132710569/sijuwoxujupid.pdfIn PDF document text
    • https://koxoganonigowup.weebly.com/uploads/1/3/1/4/131408343/9867142.pdfIn PDF document text
    • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off000080e2.bin)
    • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off000080e2.bin)
    • https://s3.amazonaws.com/bejeseja/blue_mountains_train_timetable.pdfIn PDF document text
    • https://s3.amazonaws.com/divelatoxa/tutorial_formulas_excel.pdfIn PDF document text
    • https://s3.amazonaws.com/kavitokolezub/74361680484.pdfIn PDF document text
    • https://s3.amazonaws.com/golepe/mawifowave.pdfIn PDF document text
    • https://s3.amazonaws.com/pibabopuduj/talufemasujunitawed.pdfIn PDF document text
    • https://s3.amazonaws.com/davawina/15397660023.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b26894b4-77ca-4b7a-8a5a-0304fa639bf5/13_reasons_why.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e1cdcb94-1fc7-4aab-a0cb-1ff18e9b5bfd/16679165520.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/20dbe3c2-da70-4990-86bb-5163f7c4000c/tilolibo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/02daf168-8c5c-4be4-bcb3-00945f9d648c/67594857052.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d0c33ae2-0160-4c06-9758-fd4e9d3d8546/nopopavuvogu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0492/9349/2380/files/mokibabupiwekatikibat.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0479/4276/2663/files/lipozene_side_effects_headache.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0499/5013/0331/files/66934639666.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1926/2363/files/the_first_noel_hymn.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 extracted file (font_00_sfnt_off000080e2.bin)

Related samples 8

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_off000080e2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x80E2 5736 bytes
SHA-256: 82bc4667c3609bd64a420f52ff0156faba8276ece81fe5ca34d5c4e5f5d8e770
font_01_sfnt_off0000946e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x946E 12760 bytes
SHA-256: d484fa9adad7e342d428936a7fb9880dd1879b58fd43a4c0a1d4a98af0aefbf4

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