Malicious PDF — malware analysis report

Static analysis result for SHA-256 c2d057192adf07c1…

MALICIOUS

PDF

91.0 KB Created: 2021-04-01 20:05:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-20
MD5: e2ab4b79021280c71848560155d9e2a6 SHA-1: 9ffd3563e1dfcc8b02db70c9ecd57c154928c54e SHA-256: c2d057192adf07c1cb4807a5d810ed1fce81ab20489ce72f2ccf66f821b435c4
126 Risk Score

Malware Insights

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

The PDF document contains numerous embedded URLs, many of which point to disposable domains and are flagged as part of a link farm. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or distributing further malware. While no scripts were explicitly extracted, the PDF structure and embedded links are indicative of a malicious lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9994

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 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/strik?utm_term=leadership+development+program+testimonials PDF link annotation
    • http://idealica-italy.site/zokurozawevtvzs.pdfIn PDF document text
    • http://xojuxelase.medianewsonline.com/71290228907.pdfIn PDF document text
    • http://jushq.club/vilijeloycq8h.pdfIn PDF document text
    • https://cdn.sqhk.co/jiwonukunav/egHibLp/35223110299.pdfIn PDF document text
    • http://gemajesubon.22web.org/soramusebaxojo.pdfIn PDF document text
    • https://cdn.sqhk.co/sorifalemuj/rhfFS62/tallahassee_dream_defenders_petition.pdfIn PDF document text
    • http://punavuvipufov.sportsontheweb.net/warcraft_3_reign_of_chaos_key_generator.pdfIn PDF document text
    • http://zebrait.fun/mississippi_firearms_permit_renewal_form2av8z.pdfIn PDF document text
    • http://gimatadokij.mygamesonline.org/vozakidenejudez.pdfIn PDF document text
    • https://cdn.sqhk.co/goxupolofodi/gfihRje/yandex_imap_settings_thunderbird.pdfIn PDF document text
    • http://josamaduxano.22web.org/wetisidesakosadalelif.pdfIn PDF document text
    • http://rujawobezixevib.iblogger.org/pubiwakosufidigovisefit.pdfIn PDF document text
    • http://discount50it.pro/5936482821684oy9.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/pazatuv/twin_bed_sheet_size_in_meters.pdfIn PDF document text
    • https://f579be4a-c2ec-451d-94ee-532237c06880.filesusr.com/ugd/9f6a24_35af7706e9854be5b2335b58e161f4aa.pdf?index=trueIn PDF document text
    • http://konoxebajokebu.rf.gd/56193383585.pdfIn PDF document text
    • http://mobukug.myartsonline.com/corsair_cx750m_cable_kit.pdfIn PDF document text
    • https://s3.amazonaws.com/paropabaru/plato_republic_summary_book_2.pdfIn PDF document text
    • https://s3.amazonaws.com/liwafo/70574982154.pdfIn PDF document text
    • https://s3.amazonaws.com/gapuruxumeg/can_you_control_amazon_fire_tv_with_alexa.pdfIn PDF document text
    • https://b54663a3-ff9d-4122-b75c-69b71428c9b0.filesusr.com/ugd/cfa91a_776997c9351347fb865ad4f8b1f3e9cb.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/dugibabafod/que_es_un_estudio_de_prefactibilidad_de_un_proyecto.pdfIn PDF document text
    • https://a5a7f18c-b887-48a0-80cc-3627c14345d5.filesusr.com/ugd/609f59_e7405d8a55ed4494a8b2adc4c3c06b27.pdf?index=trueIn 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_off000128ee.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x128EE 5376 bytes
SHA-256: fbb41c645b5bb3e38df4d0331be3c56ac8d9d339e66a899a38c64c53b0fc2a50
font_01_sfnt_off00013b15.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13B15 10804 bytes
SHA-256: 30ce4e6f664ed1c332c523526212afcbdf0979e1e1bb19d9e354e543a10e998b

Open this report in the interactive analyzer, or submit your own file for analysis.