Malicious PDF — malware analysis report

Static analysis result for SHA-256 19b919422455e829…

MALICIOUS

PDF

80.6 KB Created: 2021-04-07 23:00:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24
MD5: 40ec0438cd1e59dbf079df051527296a SHA-1: 5b8167ee330346d749cf9ce934a761bcc67d40ba SHA-256: 19b919422455e829683d586a6c99c090557760a9b0bee35bd75c778d648f1b8d
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://resalured.ru/strik?utm_term=how+to+write+an+art+installation+proposal PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4426060/normal_604315c291d3e.pdfIn PDF document text
    • https://xasukibumit.weebly.com/uploads/1/3/4/7/134749231/rufafededeluba.pdfIn PDF document text
    • http://shopwithsale.website/22430512091s8ye8.pdfIn PDF document text
    • http://larts.digital/2015_junior_miss_pageant_nudist_contest3cxwo.pdfIn PDF document text
    • https://mitafewojoruwe.weebly.com/uploads/1/3/1/3/131381680/lajonobobasizotiw.pdfIn PDF document text
    • http://balegetiwep.mywebcommunity.org/464107354.pdfIn PDF document text
    • https://kamedewogivazu.weebly.com/uploads/1/3/4/0/134096977/783020.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4404292/normal_60168ae6987d3.pdfIn PDF document text
    • https://nilozirarita.weebly.com/uploads/1/3/4/4/134463528/lixanidifurosi.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/tarizirefevifab/arcgis_label_expression_number_format.pdfIn PDF document text
    • http://gavawekib.myartsonline.com/is_dark_alliance_backwards_compatible.pdfIn PDF document text
    • https://s3.amazonaws.com/vonutavekip/wazadezamuzenugulatunud.pdfIn PDF document text
    • https://s3.amazonaws.com/gafedupeba/30134080196.pdfIn PDF document text
    • http://fikojopetomex.rf.gd/romeo_and_juliet_act_1_scene_4_and_5_questions_and_answers.pdfIn PDF document text
    • http://gixiluvigatekij.atwebpages.com/selegidojexew.pdfIn PDF document text
    • http://gokobuvutojo.epizy.com/farepitiwexebapexose.pdfIn PDF document text
    • https://s3.amazonaws.com/mogipegi/walmart_new_baby_girl_clothes.pdfIn PDF document text
    • http://moxuzaridob.onlinewebshop.net/63587792925.pdfIn PDF document text
    • http://mojozore.myartsonline.com/why_excel_file_format_is_not_valid.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0001004f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1004F 4868 bytes
SHA-256: 9c8939403023d71ed8211a853a4de4c19e82a844f8d643cd3d9994f0327b002b
font_01_sfnt_off000110f4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x110F4 10600 bytes
SHA-256: 047cf03739b5963180986cb3df95e7cb9c5bc179caa38e3b07782d9ffb5105f6

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