Malicious PDF — malware analysis report

Static analysis result for SHA-256 032d580292993b9d…

MALICIOUS

PDF

41.8 KB Created: 2020-10-08 02:16:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 020253052b501c808e6f438a201cc003 SHA-1: aac7ced5a580a8002741a257e95becac375fb161 SHA-256: 032d580292993b9dc652b7429ec70e5ada80813d98807694eb0d2ce97eb801ad
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://ttraff.link/pify?keyword=11+minutos+de+paulo+coelho+pdf In PDF document text
    • http://fosureso.harmonyhillaussies.com/uploads/1/3/1/8/131871426/9354224.pdfIn PDF document text
    • http://files.livinglearninglandscapes.com/uploads/1/3/1/3/131380733/3064355.pdfIn PDF document text
    • http://files.grainnebradyfiddle.com/uploads/1/3/2/3/132303189/81462fb5c.pdfIn PDF document text
    • http://files.trustedfinancialpro.com/uploads/1/3/2/6/132695994/7b4f872b56f96d.pdfIn PDF document text
    • http://povedu.blend-boutique.com/uploads/1/3/0/8/130814479/7a112.pdfIn PDF document text
    • http://files.debbieklein.org/uploads/1/3/1/3/131379266/kiretixu.pdfIn PDF document text
    • http://files.willselman.com/uploads/1/3/2/6/132682851/ponirafa.pdfIn PDF document text
    • http://gugif.pnba-artists.org/uploads/1/3/2/6/132681947/wuvoju.pdfIn PDF document text
    • https://site-1042204.mozfiles.com/files/1042204/63255636831.pdfIn PDF document text
    • https://site-1038910.mozfiles.com/files/1038910/18473396494.pdfIn PDF document text
    • https://site-1037176.mozfiles.com/files/1037176/zufunubobuzawutomiki.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/d6ae90b9-0b9c-452b-afca-780be1680b9d/16589996831.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_off0000603c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x603C 5256 bytes
SHA-256: afd2124a0d7e25c79d720cc86bc4ecda0046c4660879ea32538722dc1b105c8d
font_01_sfnt_off000071fa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x71FA 12404 bytes
SHA-256: 9cfb813141e9fae7dbc97992b833ffa02420580aeb4d3aace2b2b2fe85a7337c