Malicious PDF — malware analysis report

Static analysis result for SHA-256 0e3b592d6c433997…

MALICIOUS

PDF

90.2 KB Created: 2021-03-25 00:31:14 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-25
MD5: d804adac35ba20add9ee77ef8e2c698e SHA-1: 0eeb5e6419ee3da6d8d6d145b7cdbc916d38239e SHA-256: 0e3b592d6c4339976f9a13a62c6f3fa7190112d6bc0b733f7099c331c65a15cc
184 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of external links, many hosted on disposable domains, suggesting a link farm or SEO manipulation tactic. The ClamAV detection and ML classifier also indicate malicious intent, likely related to phishing or malware distribution. While no scripts were explicitly extracted, the PDF structure and embedded URLs point towards an attempt to redirect users to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7693

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 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.
  • 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://leonvi.ru/award?keyword=arbitration+act+sri+lanka+pdf PDF link annotation
    • https://sobidoduwipiver.weebly.com/uploads/1/3/1/4/131406433/4635558.pdfIn PDF document text
    • https://vuzavadakugodo.weebly.com/uploads/1/3/4/8/134857872/5752749.pdfIn PDF document text
    • https://zanonolupurezo.weebly.com/uploads/1/3/3/9/133997165/kevanolopugi.pdfIn PDF document text
    • https://varovugunigode.weebly.com/uploads/1/3/4/4/134480676/acfa9.pdfIn PDF document text
    • https://pisubemiduburor.weebly.com/uploads/1/3/1/3/131380627/kotulamofu.pdfIn PDF document text
    • https://funofumid.weebly.com/uploads/1/3/4/8/134886651/2438199.pdfIn PDF document text
    • https://fusavufotopos.weebly.com/uploads/1/3/4/6/134634064/dinefotabetu_gapunotipok_kiribunozizov.pdfIn PDF document text
    • https://cdn.sqhk.co/nilesatu/jagelju/kindergarten_animals_activities.pdfIn PDF document text
    • https://cdn.sqhk.co/daborofus/agjthg0/i_love_my_planet_earth_essay.pdfIn PDF document text
    • https://nuguzawopaji.weebly.com/uploads/1/3/4/0/134040365/b220300.pdfIn PDF document text
    • https://63f3b980-df56-4d16-8c75-de9131d8e0d8.filesusr.com/ugd/b7fdcf_6592b2f051364e2c9623fa747e1b48f6.pdf?index=trueIn PDF document text
    • https://96a9e3af-f0c3-4048-9e6c-0ad8da3c6018.filesusr.com/ugd/15d534_9439a555ae31432c97d349c30a246f91.pdf?index=trueIn PDF document text
    • https://59e5a08b-0d8d-455f-a3a7-35a3b781ab3e.filesusr.com/ugd/784815_d9c8484537754ad98613a4f7918c0907.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/113b530b-edb1-4d46-91e4-8bcbdcd4ef32/conceptos_de_derechos_humanos_y_sus_autores.pdfIn PDF document text
    • https://s3.amazonaws.com/biwuwukesazef/wobidajegesonamofif.pdfIn PDF document text
    • https://s3.amazonaws.com/poresi/b_p_m_full_form.pdfIn PDF document text
    • https://6440a9f6-5e82-4153-977b-4ffe9374ec4a.filesusr.com/ugd/7182f3_3f54e6460bee4bfaa6f152acd214332e.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/dowavelaxam/nosogirakanigameb.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5c2da061-4dc6-44fc-947a-37cf01471c83/pixabexuwaxiposefuduguz.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b18057a8-c244-4b68-b975-ca94982a9062/97626406348.pdfIn PDF document text
    • https://6e229dea-1f83-4be8-8cd3-388eabd4f5e3.filesusr.com/ugd/1cfe37_889acd12ca164ccf92510ea7fe2d2c33.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/tozaduliwubega/manualidades_para_halloween_nios.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/953c43f9-d6e3-4365-9285-2b30bfae42aa/78254639671.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/afa7cb5e-95df-4979-9d66-12ee8d5d56a9/90937111150.pdfIn PDF document text
    • https://s3.amazonaws.com/xaliwalufoguni/85515684985.pdfIn PDF document text

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