Malicious PDF — malware analysis report

Static analysis result for SHA-256 6734cb9af73f151f…

MALICIOUS

PDF

45.8 KB Created: 2020-11-08 02:14:18 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-01-11
MD5: 54d1e84509e6670ec09dfc3b8068faf3 SHA-1: ed23b35cdf5a0057fa9f073c5e67cca755956593 SHA-256: 6734cb9af73f151f1786124ca736ad81828d6417f0b92bc483846447c159a668
66 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • 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=bubble+witch+saga+3+apk+download PDF link annotation
    • https://rixijufufapug.weebly.com/uploads/1/3/4/4/134497528/binulobak.pdfIn PDF document text
    • https://suzokixuvajix.weebly.com/uploads/1/3/0/7/130776208/fetagedef-pudutonezizelep.pdfIn PDF document text
    • https://tenagudewujuga.weebly.com/uploads/1/3/1/1/131164273/2776395.pdfIn PDF document text
    • https://kubupukadumu.weebly.com/uploads/1/3/1/3/131382740/mokitegowaf.pdfIn PDF document text
    • https://pituluwo.weebly.com/uploads/1/3/1/4/131437949/xuwepeve.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/915cd62e-4e55-4399-9a68-ce8d6aa47b40/is_potato_a_vegetable.pdfIn PDF document text
    • https://rotadenig.files.wordpress.com/2020/11/82236523173.pdfIn PDF document text
    • https://zedapakaxivi.files.wordpress.com/2020/11/systems_analysis_and_design_10th_edition.pdfIn PDF document text
    • https://s3.amazonaws.com/febopa/descriptive_analysis.pdfIn PDF document text
    • https://pupirod.files.wordpress.com/2020/11/sagob.pdfIn PDF document text
    • https://xajawut.files.wordpress.com/2020/11/savojabanawide.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_off00007300.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7300 5748 bytes
SHA-256: ae8d94628b4145be2b67aadfdd7e105cb0ee20ac19050c4e18972c56480ea91c
font_01_sfnt_off000086ab.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x86AB 10464 bytes
SHA-256: e3466a6fdb3f0f278828ace0de178afec53d3220539bd1f1df748c6fd88391f1

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