Malicious PDF — malware analysis report

Static analysis result for SHA-256 d9ce9c30b66c4783…

MALICIOUS

PDF

51.2 KB Created: 2020-06-06 11:40:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-01-23
MD5: 927367a9bab3e3a20bd9dca24ec9f695 SHA-1: 32deabbe2caf41f7125d118fcbf6912e5f2245e4 SHA-256: d9ce9c30b66c4783ffad0dfffdfc7328b1df18561b938640417b6fbe723fed3e
184 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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 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.
  • 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.cc/wp3?keyword=le+48+leggi+del+potere+pdf#le+48+leggi+del+potere+pdf In PDF document text
    • http://loveatnewbeginnings.com/uploads/1/3/0/7/130740205/4738295.pdfIn PDF document text
    • http://actbyvidal.ca/uploads/1/3/0/5/130588670/686980.pdfIn PDF document text
    • http://mx.paulyeonlee.com/uploads/1/3/1/3/131379390/0b193a.pdfIn PDF document text
    • http://coysmarine.com/uploads/1/3/1/3/131383721/damomod.pdfIn PDF document text
    • http://emiliawkorte.com/uploads/1/3/1/3/131383823/notoze.pdfIn PDF document text
    • http://topgrouptravel.voyagerwebsites.com/uploads/1/3/0/5/130546415/efdacb59fc5e.pdfIn PDF document text
    • http://dragitelespectatori.com/uploads/1/3/1/6/131636758/dezafixomape-vogodutakusa.pdfIn PDF document text
    • http://christmasinnb.com/uploads/1/3/0/7/130740213/7d8285708.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://vidisufonub.files.wordpress.com/2020/06/zewule.pdfIn PDF document text
    • https://xafelemotu.files.wordpress.com/2020/06/14673795260.pdfIn PDF document text
    • https://nudokux.files.wordpress.com/2020/06/vegikidigexa.pdfIn PDF document text
    • https://simesodut.files.wordpress.com/2020/06/69914697238.pdfIn PDF document text
    • https://xoxovim.files.wordpress.com/2020/06/69737224526.pdfIn PDF document text
    • https://rozebasez.files.wordpress.com/2020/06/85748264697.pdfIn PDF document text
    • https://rigadiwototu.files.wordpress.com/2020/06/79567056794.pdfIn PDF document text
    • https://korovite.files.wordpress.com/2020/06/63630042536.pdfIn PDF document text
    • https://fowomavopil899143489.files.wordpress.com/2020/06/61250967835.pdfIn PDF document text
    • https://kitogap914674357.files.wordpress.com/2020/06/zatara.pdfIn PDF document text
    • https://wordpress.com/tos/In PDF document text
    • https://wordpress.com/dmca.htmlIn PDF document text
    • https://wordpress.com/policy.htmlIn 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 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00009f81.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9F81 10292 bytes
SHA-256: cdc2f79ce10579210638c149556bb7d62ac66006ec8e4016609861fcb4138a04

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