Malicious PDF — malware analysis report

Static analysis result for SHA-256 a270a78da03787c6…

MALICIOUS

PDF

72.1 KB Created: 2021-06-07 06:47:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-25
MD5: c96ea6e88a5a7af503588a9d62872672 SHA-1: 2c75b6e7f89e929e77dc6ccc8acdc978af205622 SHA-256: a270a78da03787c66798253f177c0332601c81d0ce69c13b35d3fe36421cd02b
154 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. 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 suspicious score 0.4980

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://crysiq.ru/pbw?utm_term=nociones+de+derecho+positivo+mexicano+ricardo+soto+perez+pdf+gratis PDF link annotation
    • https://sixanatol.weebly.com/uploads/1/3/4/6/134631849/7298da63.pdfIn PDF document text
    • https://dojeviwenos.weebly.com/uploads/1/3/4/4/134491393/tabenexudekelezinoki.pdfIn PDF document text
    • https://tufelonidozuwux.weebly.com/uploads/1/3/2/6/132681512/7591789.pdfIn PDF document text
    • https://nigelatadumave.weebly.com/uploads/1/3/4/6/134615228/kupijulerifiruv-fuxufipunur-kogojukal-rimenupome.pdfIn PDF document text
    • https://kuvuwivozud.weebly.com/uploads/1/3/6/0/136091804/motowaruzu_mosemivolat_rilelu.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/04c63a86-83d9-4717-933f-636912b672a0/somijefijuliwanemad.pdfIn PDF document text
    • http://lewiwebula.pbworks.com/w/file/fetch/144752535/12416230084.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/aa8dfdba-5683-4e12-8da4-d38b524b41d2/berexolekugojagujakaru.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/20ee62ab-67ea-4d00-9de9-8ab651e8c4bb/pitugebupevonobebefe.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9c3f3340-2bbf-4a89-9165-8d5a8689cdde/suxividixumufux.pdfIn PDF document text
    • http://fotikeralo.pbworks.com/w/file/fetch/144443814/pimizuref.pdfIn PDF document text
    • http://gogoporiwo.pbworks.com/f/30327798516.pdfIn PDF document text
    • http://didaneguk.pbworks.com/w/file/fetch/144427905/jagotekuwidixaza.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/02655df3-1ad2-45d4-8ac9-46dc2e30f2ec/29172673681.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f5aef8e6-5fbd-4354-bb40-4ada661d19cd/nubejofexalevizavus.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/13dd216b-b60b-4a4a-a1bb-e150c6d081b8/45993940331.pdfIn PDF document text
    • http://bovojigu.pbworks.com/f/pivixusimefepowos.pdfIn PDF document text
    • http://jujupaw.pbworks.com/w/file/fetch/144534342/71633189101.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/249e263b-8111-4383-850e-22ebd7346dcc/xodakufigukisituvuki.pdfIn PDF document text
    • http://mevuteled.pbworks.com/w/file/fetch/144751392/74638162904.pdfIn PDF document text
    • http://sikovifif.pbworks.com/f/23697655169.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ec9a623e-9343-4852-bcf7-19a023f62383/deremiwu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7d0bf614-decd-4458-8001-e9e241a03e62/63536287435.pdfIn PDF document text
    • http://lulimogosan.pbworks.com/w/file/fetch/144509982/how_to_pair_earbuds_to_each_other.pdfIn PDF document text
    • http://wiwedano.pbworks.com/w/file/fetch/144427248/jidelimeterodugitet.pdfIn PDF document text
    • http://gatasulupu.pbworks.com/f/arm_template_dependson_resource_group.pdfIn PDF document text
    • http://jiboduxoguv.pbworks.com/f/91458048676.pdfIn 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 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f867.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF867 5684 bytes
SHA-256: 56154975ca76ecccad7e542e3187bfb2153b39b3b5540ffd72af710b9cc0e1ac

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