Malicious PDF — malware analysis report

Static analysis result for SHA-256 6be4b32cb8c82ee0…

MALICIOUS

PDF

72.2 KB Created: 2020-11-24 09:50:17 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-14
MD5: 5fb1b5f1643054cf2b48ebcca39dcaa2 SHA-1: b93ebaaca42a3b13c58d63f458ba8a4b48a2ebdb SHA-256: 6be4b32cb8c82ee062bd59c4a64809d931c291d1747d47691c0a652d20d8277b
156 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF was flagged by ClamAV as 'Pdf.Phishing.Trojan' and a machine learning classifier indicated a high probability of maliciousness. It contains numerous external links, including one to 'traffset.ru', suggesting a phishing or malicious redirection attempt. The document body, though heavily obfuscated, contains metadata indicating it was generated by wkhtmltopdf, a tool often used to create PDFs from web content, further supporting the idea that it's a lure.

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 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://traffset.ru/strik?utm_term=teresa+de+lauretis+technologies+of+g PDF link annotation
    • https://liwevapazu.weebly.com/uploads/1/3/1/0/131071299/gesovezifomemajedik.pdfIn PDF document text
    • https://towajusuw.weebly.com/uploads/1/3/4/5/134521237/mutijofesizeliv_jifawa_logiridasezow.pdfIn PDF document text
    • https://naxedomabaxa.weebly.com/uploads/1/3/1/6/131606472/wexufuvaximis.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365553/normal_5f87c2d248b2a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4489041/normal_5fb982e4586bf.pdfIn PDF document text
    • https://femevidawivuk.weebly.com/uploads/1/3/1/0/131071063/53ef91cec69bef.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/liwafo/template_desain_kalender_2020_cdr.pdfIn PDF document text
    • https://s3.amazonaws.com/libowebujakux/77545725829.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e2c15454-2479-4cd1-92bd-9c35673e808f/sijuxolagunonela.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fc4339c6-c916-48c2-abbc-a3d907bc1e63/rank_list_2016.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b3ba1e91-acd9-4257-894a-2afbaf563072/nursing_scholarships_for_fall_2020.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c9697f20-e3f4-4cd8-b580-0bba0c85e47a/64247606753.pdfIn PDF document text
    • https://s3.amazonaws.com/jeponowon/zabaresovarakedimekevo.pdfIn PDF document text
    • https://s3.amazonaws.com/dukajevo/website_scope_of_work.pdfIn PDF document text
    • https://s3.amazonaws.com/fizup/52440891681.pdfIn PDF document text
    • https://s3.amazonaws.com/genukopapovixo/quotation_acceptance_form_template.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/457d8ed7-8a49-446e-bce3-25e022e55596/49486766984.pdfIn PDF document text
    • https://s3.amazonaws.com/petikamov/british_english_grammar_and_composition-_anglo_hindi.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_off0000cf75.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCF75 5116 bytes
SHA-256: 1a777eefd13e419ab75eaab78dab86d4eb4d03345c45ba3128237a4b9b0f97c6
font_01_sfnt_off0000e0c9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE0C9 11008 bytes
SHA-256: ec41fe5720972f879ec399136357f5321b95925a772ef6c63508867b1c452f0a
font_02_sfnt_off0001050e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1050E 4324 bytes
SHA-256: cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34

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