Malicious PDF — malware analysis report

Static analysis result for SHA-256 07324197c8d5093d…

MALICIOUS

PDF

41.6 KB Created: 2020-11-05 16:59:39 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-02-23
MD5: 7078e1e2c676e732d4600174c4e34740 SHA-1: c500d40d1ac261348e8156cbb13b3045e5e4f6ed SHA-256: 07324197c8d5093da0cfffbff8f72a473f79d992788fd0b4719cb737434007ac
126 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.
  • 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://trafffi.ru/123?keyword=red+dawn+parents+guide PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4365653/normal_5f8c188f38b58.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368949/normal_5f90e93793bb0.pdfIn PDF document text
    • https://kogatakuzomaw.weebly.com/uploads/1/3/4/4/134444425/562d29b4b6c.pdfIn PDF document text
    • https://mefemanodi.weebly.com/uploads/1/3/1/4/131454269/bitosakuk_nitabexobidikuw_jazaxu_sulisodiza.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4393499/normal_5f9192203f749.pdfIn PDF document text
    • https://wojedebaroz.weebly.com/uploads/1/3/1/6/131637691/0e5aa94c67ff88.pdfIn PDF document text
    • https://sexanugujox.weebly.com/uploads/1/3/4/2/134266496/f0a6880fc183.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4421944/normal_5f989729bd50b.pdfIn PDF document text
    • https://rowurasivove.weebly.com/uploads/1/3/4/3/134357219/24138d6f3c7.pdfIn PDF document text
    • https://pasukanat.weebly.com/uploads/1/3/4/4/134474220/8851426.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370080/normal_5f9098a6cad6f.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4714/7925/files/at_t_employee_code_of_conduct.pdfIn PDF document text
    • https://s3.amazonaws.com/babuxufarizuxur/meropojamalisudusipimisex.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_off0000638b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x638B 5192 bytes
SHA-256: 08fdf470ab52c2d722653b261c6f7e4fc9e2c61a64564b3723b87e12585ccccc
font_01_sfnt_off0000755f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x755F 10716 bytes
SHA-256: 9d37f205eddbf3557fc15f54751fc16a62f7ea065c027fe1c226954048d3ca19