Malicious PDF — malware analysis report

Static analysis result for SHA-256 706e25e8a9b4d0f3…

MALICIOUS

PDF

113.6 KB Created: 2021-04-23 04:54:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-24
MD5: 2115fe6a7382ee5dde3aa05052209703 SHA-1: 9350a6f479e23dbdb53cc8d9781a7361a223a65c SHA-256: 706e25e8a9b4d0f353711318b35b0c0a659e3454a4e9a5c3689ffd9151447ec0
126 Risk Score

Malware Insights

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

The PDF contains numerous links to external websites, many of which are hosted on disposable domains and appear to be part of a link farm. The ML classifier and ClamAV detection strongly indicate malicious intent, likely phishing or malware delivery. While no scripts were explicitly extracted, the PDF structure and embedded URLs suggest it's designed to redirect users to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9981

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://botokaw.ru/strik?utm_term=the+complete+book+of+birthdays+august+13 PDF link annotation
    • http://junumidutuzakox.getenjoyment.net/46999538917.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4413019/normal_5fc864a0cbb9b.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4413016/normal_5ff91dde539bb.pdfIn PDF document text
    • http://vifezitenof.getenjoyment.net/colors_name_in_english.pdfIn PDF document text
    • http://dipunag.getenjoyment.net/68659850002.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4489740/normal_601d4fdfbe372.pdfIn PDF document text
    • http://dokakepitizix.medianewsonline.com/best_thriller_novels_in_english.pdfIn PDF document text
    • http://marifivelaj.mygamesonline.org/kidonesi.pdfIn PDF document text
    • http://duwinijuj.mypressonline.com/metepudepajofixupize.pdfIn PDF document text
    • http://xagixowedobosab.medianewsonline.com/85540024448.pdfIn PDF document text
    • http://posurazatux.mypressonline.com/gene_keys_and_human_design.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4446263/normal_601b9a7cda72a.pdfIn PDF document text
    • http://xomutukegadoj.mypressonline.com/vezozagezalevomutupevi.pdfIn PDF document text
    • http://xofebuledat.scienceontheweb.net/ipr_biosafety_and_bioethics_book.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://tevaluzax.atwebpages.com/runob.pdfIn PDF document text
    • http://vidugozu.atwebpages.com/kodafovusema.pdfIn PDF document text
    • http://fawipiro.rf.gd/bidarazegoj.pdfIn PDF document text
    • http://fovuxux.rf.gd/example_answer_to_hud_complaint.pdfIn PDF document text
    • http://nedizilunok.myartsonline.com/how_to_make_buffer_solution_ph_7.pdfIn PDF document text
    • http://junaken.onlinewebshop.net/39801175601.pdfIn PDF document text
    • http://wozitoso.atwebpages.com/belinizezodokabetol.pdfIn PDF document text
    • http://kenesowozowojaw.myartsonline.com/5401555905.pdfIn PDF document text
    • http://fujexadegog.rf.gd/juvukokenezumebir.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00014fae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14FAE 13084 bytes
SHA-256: 5631bfc25f3b78e2a4aec07896cc24100ecefafbfa596ae55e7febf830189692
font_01_sfnt_off000179a5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x179A5 6040 bytes
SHA-256: d3640a30f0c90526c5ed4f57fe63d0d91d55e59b424e06d7646a0d5c711a2f38
font_02_sfnt_off00018e15.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x18E15 14024 bytes
SHA-256: 790dd4aa27960ba0b499a01c8c79eab2e00461845652eb3b00fa9c0eb61b035a

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