Malicious PDF — malware analysis report

Static analysis result for SHA-256 026014077fc28856…

MALICIOUS

PDF

71.1 KB Created: 2021-05-08 14:45:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-07
MD5: e58f7943031ada330b3cf14c91345180 SHA-1: 1619e3a23bc6076e773859b9671f6cde97ece483 SHA-256: 026014077fc288568c6331c373ae5a86e265f9d8f48a758683ba87cceb647f7e
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous external links, a common tactic for phishing or redirecting users to malicious sites. The ClamAV detection and ML classifier strongly indicate malicious intent. While no scripts were explicitly extracted, the PDF structure and embedded links suggest it's designed to lead the user to a compromised or malicious domain.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 5

  • 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.
  • 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://kuzutuzo.ru/strik?utm_term=chamberlain+universal+garage+door+keypad+program PDF link annotation
    • http://komaxinatobofe.medianewsonline.com/zuzawadupumikojaxa.pdfIn PDF document text
    • http://tdsevsvet.ru/what_affects_conduction_velocity_of_an_action_potentialcyfnc.pdfIn PDF document text
    • http://bionatur.space/24298126570bf6j2.pdfIn PDF document text
    • http://fisujerekuvij.getenjoyment.net/renefuvusazav.pdfIn PDF document text
    • http://ligugiban.scienceontheweb.net/goluf.pdfIn PDF document text
    • http://tokio-2020.fun/wosomop93f81.pdfIn PDF document text
    • http://pedugubugof.mywebcommunity.org/29596191457.pdfIn PDF document text
    • http://paselon.getenjoyment.net/32364811951.pdfIn PDF document text
    • http://xobilosusi.sportsontheweb.net/53347935585.pdfIn PDF document text
    • http://buyfastedcircle.xyz/gabriels_oboe_guitaro2d6x.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cf587a47-7c2f-4f55-8bbb-21a4c73503f7.filesusr.com/ugd/8ea597_dd560cb65deb492ab321b846754fbad8.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/bulikowexunepov/dugabiwumorolilo.pdfIn PDF document text
    • https://s3.amazonaws.com/bejikefowu/html_css_bootstrap_admin_templates.pdfIn PDF document text
    • https://6c49ff76-e13b-46da-8354-2e633d56f736.filesusr.com/ugd/211c2d_2a705b710c4c498b8a63ae202481b588.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/bagokiko/28713289591.pdfIn PDF document text
    • https://s3.amazonaws.com/zuxime/piriformis_pain_in_buttocks.pdfIn PDF document text
    • https://s3.amazonaws.com/lemerisinivum/exo_cbx_blooming_days_full_album.pdfIn PDF document text
    • http://ladurabazidema.onlinewebshop.net/career_guidance_after_10th_chart.pdfIn PDF document text
    • https://s3.amazonaws.com/tobobowu/bluestacks_for_windows_8._1_1gb_ram.pdfIn PDF document text
    • https://s3.amazonaws.com/defujo/tesij.pdfIn PDF document text
    • https://fac30f9c-1bc3-4ff6-ac40-7ced1d2a170b.filesusr.com/ugd/3b7182_5d0887e6577e42359846a30159c67cb9.pdf?index=trueIn PDF document text
    • http://kosezofejesuxef.atwebpages.com/68337813696.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_off0000d6bd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD6BD 5644 bytes
SHA-256: 4aa53bd0c333cf7d036de065251f0a9920610393088176cb7c3b75ddec904eb4
font_01_sfnt_off0000e9c3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE9C3 10400 bytes
SHA-256: 913a38ef91a73f2d0fcd9a48b0a61af1df6469686e2a3b5d44711aa0a7f8cf8d

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