Malicious PDF — malware analysis report

Static analysis result for SHA-256 0b5c30560f035be3…

MALICIOUS

PDF

71.4 KB Created: 2021-02-12 03:45:44 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: b51d6267c810818ea0661144fd06e1ec SHA-1: c609531a8c7fdbc9523f943b7773e260623239ac SHA-256: 0b5c30560f035be3c78558a3316cdd4d7cbad29c28f8e60c34f0e38b552fc02d
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://maypoin.ru/wix?keyword=mineral+springs+hotel+nj PDF link annotation
    • https://lidimegofomizut.weebly.com/uploads/1/3/1/3/131380930/dixej.pdfIn PDF document text
    • https://cdn.sqhk.co/puwidebudojo/ibidic0/defender_2_mod_apk_1._4._6.pdfIn PDF document text
    • https://cdn.sqhk.co/gegenosuzun/7O66PuB/sijorarajedonoxabega.pdfIn PDF document text
    • https://puwoposujol.weebly.com/uploads/1/3/0/9/130969317/6251590.pdfIn PDF document text
    • https://cdn.sqhk.co/guzamuvi/jeihIhi/color_harmony_generator_adobe.pdfIn PDF document text
    • https://cdn.sqhk.co/nedabuke/hicltuX/words_for_fun_that_start_with_cool.pdfIn PDF document text
    • http://instacopyrightcenter.com/badoo_superpowers_hack_apk_2018q8uto.pdfIn PDF document text
    • https://devopududifuwet.weebly.com/uploads/1/3/2/6/132696325/5683720.pdfIn PDF document text
    • https://sinekamawo.weebly.com/uploads/1/3/0/7/130776883/zekupewobifizasebidu.pdfIn PDF document text
    • https://zosotise.weebly.com/uploads/1/3/5/3/135393527/2d07be2f91c95.pdfIn PDF document text
    • https://xegoratan.weebly.com/uploads/1/3/2/7/132712572/9718635.pdfIn PDF document text
    • http://waystep.site/ansi_150_flange_dimensions_in_mm9sz75.pdfIn PDF document text
    • http://vseti.life/skyrim_race_compatibilityyka9h.pdfIn PDF document text
    • https://cdn.sqhk.co/jusitufugaf/ahahdib/rulapodalavolatudixoj.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://lotidasifiteg.epizy.com/gowewewadamifup.pdfIn PDF document text
    • http://jemibare.epizy.com/gretna_guide_newspaper.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_off0000dbbf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDBBF 5164 bytes
SHA-256: d9e399e014592749528cee80ea2c2f33c6c4f68fb8e0c215ceed77ea538870cf
font_01_sfnt_off0000ed52.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xED52 10476 bytes
SHA-256: 38c86177dfbb4ea016bfbd2505cd9de3dc84e0de9e3a6349eca9eee24737a483