Malicious PDF — malware analysis report

Static analysis result for SHA-256 04f6cd292caf6449…

MALICIOUS

PDF

83.7 KB Created: 2021-03-22 15:14:50 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-20
MD5: 95f6cb27a43fc53319002fc807c101c0 SHA-1: c13279bb4f63f42abf7cfdcfbbcbdf93b09f6558 SHA-256: 04f6cd292caf64493c2cff05843600810b2a25c0e5dbf09402f43ce363e1c809
96 Risk Score

Malware Insights

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

The PDF file was detected as malicious by ML classifiers and ClamAV, specifically flagged as Pdf.Phishing.Trojan. The presence of an external URI pointing to 'bologen.ru' suggests a phishing or malware distribution attempt. Although no scripts were explicitly extracted, the PDF structure and the nature of the URL indicate a malicious intent to trick users into visiting a potentially harmful site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://bologen.ru/award?keyword=ashrae+handbook+fundamentals+pdf PDF link annotation
    • http://fejuxit.iblogger.org/is_black_and_decker_any_good.pdfIn PDF document text
    • http://dulomagukide.22web.org/southwest_lost_baggage_claim_form.pdfIn PDF document text
    • http://life-news.tech/sikamobimisixosegusumijkum.pdfIn PDF document text
    • http://antileqphh.site/lg_g_pad_7.0_troubleshooting0hn4k.pdfIn PDF document text
    • http://fexodubavilukub.22web.org/craftsman_12_inch_radial_arm_saw_parts.pdfIn PDF document text
    • http://contact-git.top/photography_changes_everything_marvin_heiferman6rety.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/a4a979f4-64e7-4ad3-8f16-41b8b0550287/what_is_a_good_birthday_quote.pdfIn PDF document text
    • https://s3.amazonaws.com/rivazixexuguri/finance_manager_interview_questions_and_answers.pdfIn PDF document text
    • http://koxogulu.rf.gd/phishing_email_template.pdfIn PDF document text
    • https://s3.amazonaws.com/rizijubovapuk/cosmic_gate_fire_wire.pdfIn PDF document text
    • http://defozuwonig.rf.gd/42420163010.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/553e8941-cdd3-4407-997a-8be95d1d8a4b/zunubilikidebunuwefejati.pdfIn PDF document text
    • https://s3.amazonaws.com/difigomisosak/blood_composition_worksheet.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/27573235-5e86-4aa3-8d7d-02e305426ded/sarah_plain_and_tall_skylark_full_movie_online_free.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/09e2b543-1ff8-4fc5-becf-4ae75b2fd336/pinepu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0653e43b-ce9e-4ab4-8364-ec426eda37b6/fogemomadidapuzofe.pdfIn PDF document text
    • https://s3.amazonaws.com/xakajoziwibi/xaxiv.pdfIn PDF document text
    • https://s3.amazonaws.com/tapelu/japolatupubo.pdfIn PDF document text
    • https://s3.amazonaws.com/jizubisetebof/77530250984.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9be724d1-f3df-49cb-968d-9e7653e09dd8/can_python_be_used_for_data_analysis.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/78b0197c-b2de-403c-a1bb-677176fa3017/dumavukuxeludolexuludafeb.pdfIn PDF document text
    • https://s3.amazonaws.com/gisujubolidine/zoxoz.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_off0000fe15.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFE15 5472 bytes
SHA-256: d45552e50c0dc666cf4984f5f697a6004f87b359ea5e07cf4baccba3b9181f0b
font_01_sfnt_off0001107e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1107E 22108 bytes
SHA-256: 95b999641e5a13f36099c57fa55949cf0b5b08048bbe24dae9cbcde6ba5f4c28

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