Malicious PDF — malware analysis report

Static analysis result for SHA-256 1680bfab7db3b88a…

MALICIOUS

PDF

74.7 KB Created: 2021-02-17 14:05:25 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: c8ee7d81c2240cddd1d638e1f0d37ebd SHA-1: 904a772584ec759c0969626feb314b8aea4de536 SHA-256: 1680bfab7db3b88a05144cf699a59e9a074465822ae52b52e9d147d8e95524ae
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://baarspo.ru/123?utm_term=dandy+warhols+welcome+to+the+monkey+house+review PDF link annotation
    • http://kieverts.xyz/international_marketing_cateora_16th_edition0xfl2.pdfIn PDF document text
    • https://rezopagukivuru.weebly.com/uploads/1/3/5/3/135307961/xekasero_wibuse_wubam_fopazele.pdfIn PDF document text
    • http://rosovutuwonemis.iblogger.org/gps_garmin_nuvicam_lm.pdfIn PDF document text
    • http://getyourscore.info/arcane_quest_legends_freek20ar.pdfIn PDF document text
    • http://rentline.pro/new_market_wizardsaouob.pdfIn PDF document text
    • http://raliwoze.iblogger.org/fajawasu.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4444877/normal_5fc65be2db862.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4393752/normal_5fc5c3b31ed61.pdfIn PDF document text
    • http://bloodcraft.online/bored_pile_design_spreadsheetgy3kv.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4448743/normal_601127b5858d3.pdfIn PDF document text
    • http://yandex-delivery.cc/qualitative_research_versus_quantitative_research0leqd.pdfIn PDF document text
    • http://herss.space/41057235430o1udi.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://daguwirebumovo.epizy.com/tisuxejexajedumer.pdfIn PDF document text
    • http://zenejifawulo.epizy.com/kitexutaloligigo.pdfIn PDF document text
    • http://tasijojaludet.rf.gd/blurryface_live_dropbox.pdfIn PDF document text
    • http://jamurujitexezi.epizy.com/vugideto.pdfIn PDF document text
    • http://kikexufan.epizy.com/pifoseragelevotaxugurizu.pdfIn PDF document text
    • http://xisapedugifado.epizy.com/lagu_addinu_lana_syubbanul.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_off0000e7e5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE7E5 5496 bytes
SHA-256: e69e470a7462e0ae1d8b833698be753b24bec21c7ceff18036f2542d8b8fb38d
font_01_sfnt_off0000fa8d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFA8D 10520 bytes
SHA-256: 9b412988e6572bdfee01b2771de9dfcd263cc28c671a11c682f46062cba423cf