Malicious PDF — malware analysis report

Static analysis result for SHA-256 ed30672338a0a362…

MALICIOUS

PDF

86.0 KB Created: 2021-01-26 11:02:51 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-17
MD5: d597bea3bdbdbf8af41262139475d6e6 SHA-1: 13404806639c2818541b7564a595739c16302fc4 SHA-256: ed30672338a0a36252323564f90ce30abd35a4f285d11fee842541a4fddddecf
126 Risk Score

Malware Insights

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

The PDF contains multiple embedded URIs, with one pointing to a suspicious domain that is likely part of a phishing campaign. The ML classifier and ClamAV detection strongly indicate malicious intent. While no scripts were explicitly extracted, the PDF structure and embedded links suggest it's designed to redirect users to malicious content.

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://trafficel.ru/123?utm_term=alabama+board+of+education+meeting PDF link annotation
    • https://lurofigugibax.weebly.com/uploads/1/3/4/6/134686006/jiwumifonidebas.pdfIn PDF document text
    • http://zumedemuruva.22web.org/forma_de_acesso_bradesco_net_empresa.pdfIn PDF document text
    • http://lovelid.xyz/wopirenejobugawepaz5a5pb.pdfIn PDF document text
    • https://vuzodafolo.weebly.com/uploads/1/3/4/7/134732359/4995471.pdfIn PDF document text
    • https://mikudope.weebly.com/uploads/1/3/5/3/135305195/8095878.pdfIn PDF document text
    • http://doporujela.iblogger.org/76334662100.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://meganisaniwo.rf.gd/lapesakojelujuzoxemexowis.pdfIn PDF document text
    • http://gurimufibefuw.rf.gd/7013870266.pdfIn PDF document text
    • https://s3.amazonaws.com/wegemebufojafak/ardaas_karaan_film_songs.pdfIn PDF document text
    • http://getetir.epizy.com/63517701679.pdfIn PDF document text
    • http://kuwoguki.epizy.com/34422083166.pdfIn PDF document text
    • http://fomobiwudaz.rf.gd/witefewenozemuvot.pdfIn PDF document text
    • https://s3.amazonaws.com/wisuw/lagu_aku_dan_dirimu_rabel.pdfIn PDF document text
    • http://mejitakofiragi.epizy.com/programming_analyst_interview_questions_and_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/towakog/ascvd_guidelines_algorithm.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_off00011553.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11553 5292 bytes
SHA-256: 7798f345b59e4517f755a3b2a96f839b9c615e07db0d575a8f1d3d6622fe3d3d
font_01_sfnt_off0001273e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1273E 10488 bytes
SHA-256: c7b1644315410fe59ec4ce4c903d30e192e97c285262ed6bbe8b9fc77b3ff71c

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