Malicious PDF — malware analysis report

Static analysis result for SHA-256 f9798bfb47bba5c1…

MALICIOUS

PDF

72.2 KB Created: 2021-03-20 09:27:42 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-23
MD5: 39fbfe3fbf61bf399fc97a9e0529df30 SHA-1: 27bac00033e7e52f1b2ce07d4033df61641da7ce SHA-256: f9798bfb47bba5c1cc00e6802d24b955eb70db8b302b2e4ebddd3aa66b055bf8
126 Risk Score

Malware Insights

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

The file is identified as malicious by ML classifiers and ClamAV, indicating it's a phishing or trojan PDF. It contains numerous embedded URLs, with a primary suspicious URL pointing to a domain likely used for phishing or malware distribution. The document body, though heavily corrupted, suggests a lure related to 'Lady Macbeth evil quotes act 2', which is likely a deceptive pretext to encourage user interaction with the malicious links.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://mezovuduw.ru/strik?utm_term=lady+macbeth+evil+quotes+act+2 PDF link annotation
    • http://kpovli.ru/excel_beginner_to_advanced7rmd2.pdfIn PDF document text
    • http://sesalon.xyz/8136580411rjr67.pdfIn PDF document text
    • http://boldly-grow.com/33255629007xmnq3.pdfIn PDF document text
    • http://urolog.xyz/how_to_set_time_on_american_hunter_feeder0o5q9.pdfIn PDF document text
    • http://vir-tus.com/can_samsung_s9_battery_be_replaced0ypzx.pdfIn PDF document text
    • http://supsun-aero.com/free_assured_tenancy_agreement_forma46nm.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4453908/normal_5fd965f62f7b4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4489725/normal_60247074af9c9.pdfIn PDF document text
    • http://fortysgjdk.fun/kadamban_movie_tamil_freeu07rq.pdfIn PDF document text
    • http://febisulel.22web.org/39088536200.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://kexabomatifub.epizy.com/38818580029.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/094629fe-3480-406d-8d08-e19b24a7187e/tutorialspoint_asp.net_interview_questions.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cac34163-bf9d-4abd-aef5-e4a60036dab3/67453411829.pdfIn PDF document text
    • http://firosuvidafodi.rf.gd/zotunerefasaxusukivi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/dc1ff326-25dd-4141-94cb-8727baf65497/3_pedal_unit_for_yamaha_dgx_660.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b63458de-6cc7-4649-a291-17cba16886b6/sims_3_64_bit_catalina.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/37a1115d-fadd-4d94-b70a-a3b2829f9615/financial_statement_analysis_icai.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/052623c6-c083-449b-8208-adef7ec895fa/3892250067.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_off0000dce7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDCE7 5584 bytes
SHA-256: 69f3d3a3f7f09b5e3494678960214a41dc50ef97bbf74585b43fa36b52cb4f2e
font_01_sfnt_off0000efd0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEFD0 10580 bytes
SHA-256: 7818866d7031f9728fb28f1f214bec091dbd82c331cca3b99cfcffbaa16ba691

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