Malicious PDF — malware analysis report

Static analysis result for SHA-256 5b5600d631b8530e…

MALICIOUS

PDF

58.2 KB Created: 2021-05-18 02:52:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: bf6efa3b5921c684333b7ecfc8db2f9d SHA-1: c616f407525be9660cfa47c19cb80e665fb6ec06 SHA-256: 5b5600d631b8530ed497ee83e2090b30eb6d455755fbdd8b56ec300d834c0746
124 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6078

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
  • 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
  • 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://lozipotod.ru/strik?utm_term=ielts+academic+reading+sample+pdf+with+answers PDF link annotation
    • http://rirarojafetojep.iblogger.org/surah_mulk_full_bangla.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4378390/normal_6046f549294e8.pdfIn PDF document text
    • http://pozesex.iblogger.org/69852130956.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4484805/normal_5feb08bc0fd1f.pdfIn PDF document text
    • https://xufetujada.weebly.com/uploads/1/3/4/7/134745175/fdcb4b.pdfIn PDF document text
    • http://dejojikeresofo.iblogger.org/how_to_calculate_number_of_years_experience_in_excel.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4464542/normal_6002e7c972cd4.pdfIn PDF document text
    • https://vumirexow.weebly.com/uploads/1/3/2/7/132740730/vegorugobowadu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379477/normal_601f94a503725.pdfIn PDF document text
    • https://sufixekanol.weebly.com/uploads/1/3/4/7/134712322/jisagilili.pdfIn PDF document text
    • https://pidoruna.weebly.com/uploads/1/3/5/9/135966994/zuwamewoki.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4474719/normal_60245c5b2cabf.pdfIn PDF document text
    • http://ponoxavar.iblogger.org/widudaxibotesaxigure.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379491/normal_60414dcc9ba49.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4461509/normal_603bd4480baa1.pdfIn PDF document text
    • https://s3.amazonaws.com/laradusa/syllabication_worksheets_for_grade_1.pdfIn PDF document text
    • http://dajaxul.epizy.com/50460840208.pdfIn PDF document text
    • https://s3.amazonaws.com/sedowedi/beste_samsung_telefoon_onder_de_200_euro.pdfIn PDF document text
    • https://s3.amazonaws.com/kotidox/the_highwaymen_movie_cast.pdfIn PDF document text
    • http://kodireso.epizy.com/ags_beers_criteria.pdfIn PDF document text
    • http://nesuvumuvugelo.epizy.com/57437073936.pdfIn PDF document text
    • https://s3.amazonaws.com/gomakobez/86564021631.pdfIn PDF document text