Malicious PDF — malware analysis report

Static analysis result for SHA-256 f08863601cc15112…

MALICIOUS

PDF

66.2 KB Created: 2021-02-27 01:15:31 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: fd572488a1e2b5cd9ecd16f9fb53e14c SHA-1: b6ca90c537580c882b6e2ca46498c563c55872ae SHA-256: f08863601cc15112e7c08927a7917d2793580979e9b2ea89d7b2853140d2e72c
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://xezojetit.ru/award?keyword=big+green+egg+extra+large+table+cover PDF link annotation
    • https://lonexababite.weebly.com/uploads/1/3/1/1/131163854/9940939.pdfIn PDF document text
    • http://gakmancreatures.ru/blank_ingoing_condition_reporthcx2q.pdfIn PDF document text
    • https://cdn.sqhk.co/faroziwe/15hfbmp/vejawegusizavuwidere.pdfIn PDF document text
    • https://cdn.sqhk.co/vilubofi/IgfhhZv/traffic_run_online_unblocked.pdfIn PDF document text
    • http://ionatr.space/50089318540i9oia.pdfIn PDF document text
    • http://pearhaidhr.fun/jufugoxukaxegugorob5tlc.pdfIn PDF document text
    • https://cdn.sqhk.co/nojedajoze/jwEgdfW/geometry_dash_subzero_download_pc_no_emulator.pdfIn PDF document text
    • https://cdn.sqhk.co/remowiwa/hbha0X1/21578647356.pdfIn PDF document text
    • http://vknacruckalaikov123.xyz/download_limitless_movie_in_hindiw2eqh.pdfIn PDF document text
    • https://sozazoje.weebly.com/uploads/1/3/1/1/131164180/4688881.pdfIn PDF document text
    • https://kasezikibojeg.weebly.com/uploads/1/3/1/8/131871727/9797703.pdfIn PDF document text
    • http://zuxenegobepejij.22web.org/93403815158.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://tikimolanevi.rf.gd/41317847572.pdfIn PDF document text
    • https://s3.amazonaws.com/wujodibu/misupodosesa.pdfIn PDF document text
    • https://s3.amazonaws.com/wazagidonux/34285987990.pdfIn PDF document text
    • http://fujesotes.epizy.com/apink_luv_dance_practice_mp4.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_off0000c5ef.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC5EF 5108 bytes
SHA-256: 8534cf145383d6b7c8366fcdb2aaa7fed99823664a491d9064e8ac7945ddfdc1
font_01_sfnt_off0000d76c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD76C 10636 bytes
SHA-256: 104090913da4812a602bef92e0fb4d2fdb5b5ad453d908bf9cdf810bb6888d74