Malicious PDF — malware analysis report

Static analysis result for SHA-256 dadcc2378de17ace…

MALICIOUS

PDF

47.5 KB Created: 2020-10-25 00:45:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-01-02
MD5: ceba4f80a5e2580e4f12e4f7611004a6 SHA-1: d8965f804ce8cf581427f760560ae5c9055c98b8 SHA-256: dadcc2378de17ace6be6773f8461b58a63ab4b0cf46aaaa5dff32978fb48882a
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://ggtraff.ru/pify?keyword=cape+woolamai+tide+guide In PDF document text
    • https://pejapuvurexoku.weebly.com/uploads/1/3/1/6/131636728/6227133.pdfIn PDF document text
    • https://vonubaxuted.weebly.com/uploads/1/3/1/4/131452839/0753b5c.pdfIn PDF document text
    • https://dutitujazekap.weebly.com/uploads/1/3/0/8/130814390/dolopitubolagu.pdfIn PDF document text
    • https://sadixudodexoz.weebly.com/uploads/1/3/4/2/134234615/5514886.pdfIn PDF document text
    • https://xesaranit.weebly.com/uploads/1/3/2/6/132696194/5ea28b89e4.pdfIn PDF document text
    • https://jawasolasazilem.weebly.com/uploads/1/3/1/3/131379174/zidebesirolabavo.pdfIn PDF document text
    • https://riwisasivituw.weebly.com/uploads/1/3/1/0/131070703/9d9610cc85aa5ce.pdfIn PDF document text
    • https://lagukekejase.weebly.com/uploads/1/3/0/8/130815031/vasudugetategugiw.pdfIn PDF document text
    • https://sepenunaxob.weebly.com/uploads/1/3/0/7/130776074/9463882.pdfIn PDF document text
    • https://wimolakerozer.weebly.com/uploads/1/3/4/4/134448160/8bfa828.pdfIn PDF document text
    • https://jirunemopisitex.weebly.com/uploads/1/3/4/3/134332051/5118020.pdfIn PDF document text
    • https://vuzevarezevarot.weebly.com/uploads/1/3/0/7/130740461/3a6af17.pdfIn PDF document text
    • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off00006ec5.bin)
    • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off00006ec5.bin)
    • https://uploads.strikinglycdn.com/files/f4fc1abc-4ba6-4f47-8084-fd73b7b58232/15086512110.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f6b5d4b4-7a5b-43ff-83ed-38c5dc48d78f/95690998032.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/53a2b14f-7f66-49eb-960b-3da53065a786/1848816856.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/196a64c1-74ea-49a0-b450-e3ed594a502e/naked_souls_full_movie.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0493/7108/7007/files/ronesegirixikotatero.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0495/2018/1414/files/17579456797.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0464/6948/0600/files/91923215933.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0501/9638/1871/files/49970412952.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0266/9137/1207/files/49904903665.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_off00006ec5.bin)

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006ec5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6EC5 5004 bytes
SHA-256: 1a243dc4069667c891931cd5a05ad9fd4490ed22ce002cf4bf954178c8d437df
font_01_sfnt_off00007fcb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7FCB 15752 bytes
SHA-256: 00ddf6c12ad379d83b5b99376341e9ae99438d82ce58601bc6656754a155d3e9