Malicious PDF — malware analysis report

Static analysis result for SHA-256 32e213bcb1fbdbb7…

MALICIOUS

PDF

42.9 KB Created: 2020-11-07 17:55:50 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-02-23
MD5: 37bd870dd41a7ea84b9d6b3c48bcd0e1 SHA-1: 1668918034a2319d48540ef585d7a51ca376ec73 SHA-256: 32e213bcb1fbdbb7c65647be02aa6d42adf11ff07e5c43c5d6dbe69b71686455
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://traffking.ru/aws?keyword=black+++decker+grass+hog+xp+manual In PDF document text
    • https://jemajodelevo.weebly.com/uploads/1/3/4/3/134394711/9728566.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4426812/normal_5fa4d4594fbbc.pdfIn PDF document text
    • https://fiwatinizajof.weebly.com/uploads/1/3/0/8/130874156/cf345ca819.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/lonozote/2096458460.pdfIn PDF document text
    • https://vesorezi.files.wordpress.com/2020/11/58806760399.pdfIn PDF document text
    • https://s3.amazonaws.com/pukiza/43526437695.pdfIn PDF document text
    • https://s3.amazonaws.com/turip/mizafa.pdfIn PDF document text
    • https://firomikodow.files.wordpress.com/2020/11/sixemotomukomozoxogituno.pdfIn PDF document text
    • https://s3.amazonaws.com/bepukuba/xixenonobojuwanado.pdfIn PDF document text
    • https://s3.amazonaws.com/zetare/94447225574.pdfIn PDF document text
    • https://mezesodumeli.files.wordpress.com/2020/11/88904628373.pdfIn PDF document text
    • https://pukatof.files.wordpress.com/2020/11/nukexaxidomowuferaje.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_off00006269.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6269 5668 bytes
SHA-256: 16bc8e9a4b4f96c0456378b2d198223dbf4388ba1ceaa2783ecb3148f19bedbf
font_01_sfnt_off00007591.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7591 12696 bytes
SHA-256: 8659ee75c3bf96c47da70c5a819f122cfd107c10997c75a93aaf5085f33c2cf7