Malicious PDF — malware analysis report

Static analysis result for SHA-256 3564c49bc85a3ff0…

MALICIOUS

PDF

41.3 KB Created: 2020-10-06 21:46:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-17
MD5: 2ebdd0aebad1c989ad710f1a9f259c8b SHA-1: e5c0db8a45ae492a90f63ba63b91552fe0041292 SHA-256: 3564c49bc85a3ff052aab2cb158c75150d0f5ad71d76fa143e6a047e074d4550
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.link/pify?keyword=bowen+high+school+chicago+il In PDF document text
    • http://ditezeta.shiningstarva.com/uploads/1/3/1/6/131637372/4e5bda388.pdfIn PDF document text
    • http://batokax.athenalenawee.org/uploads/1/3/1/3/131380600/acf2a7c7.pdfIn PDF document text
    • http://files.galleryofhope.me/uploads/1/3/2/7/132741162/jexigo_vejidalidam.pdfIn PDF document text
    • http://voxupapi.vhendrix.com/uploads/1/3/0/7/130776445/zuzuzo-suloja-vafirelelinum.pdfIn PDF document text
    • http://files.cakesbygray.com/uploads/1/3/0/8/130814858/midemofurosim_robawub_mizeken.pdfIn PDF document text
    • http://files.zennergystudios.com/uploads/1/3/1/4/131453214/fa600d16456d5.pdfIn PDF document text
    • http://files.evelethheritage.com/uploads/1/3/2/3/132303371/buzegolevab.pdfIn PDF document text
    • http://kuxiro.miweddingpainter.com/uploads/1/3/2/8/132815806/7847985.pdfIn PDF document text
    • http://files.muskielakehideaway.com/uploads/1/3/0/8/130874253/6822924.pdfIn PDF document text
    • http://files.charleybearproductions.com/uploads/1/3/0/7/130775784/2529127.pdfIn PDF document text
    • https://site-1038707.mozfiles.com/files/1038707/xaxemikisejagiwivomasigu.pdfIn PDF document text
    • https://site-1036785.mozfiles.com/files/1036785/xaxojeguvapokep.pdfIn PDF document text
    • https://site-1037848.mozfiles.com/files/1037848/tavimiguwiwanaviburo.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/1/0488/3460/9317/files/rakivawuzigo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0958/0967/files/96319283262.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_off000062d7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62D7 5104 bytes
SHA-256: 73a524c4b8a8ea0e26899537ecd1c7621222c1b5fb65936c3e7fb36b63dc78cb
font_01_sfnt_off00007452.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7452 10652 bytes
SHA-256: 89d62c50df81331e145ed8b97a5aaa9dbfa74cbb4ab05189d47230f4310f6b5a