Malicious PDF — malware analysis report

Static analysis result for SHA-256 000de60534e813e3…

MALICIOUS

PDF

74.4 KB Created: 2020-11-18 06:02:30 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 1900c42215a5c2d8b44ff8baac27eea4 SHA-1: da6bd23ffbac55a69fdf3888ea1d1f479e17ebdd SHA-256: 000de60534e813e30fdec161674075053dcccc0ca34e713414ac6f3f8c6187d6
214 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 and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm and routes users through malicious redirector infrastructure. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://gettraff.ru/strik?utm_term=nj+licencia+de+pesca+de+la+trucha In PDF document text
    • https://cdn-cms.f-static.net/uploads/4450337/normal_5fae308850922.pdfIn PDF document text
    • https://nutifikidejuz.weebly.com/uploads/1/3/4/3/134347692/mepepuroxinifax.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369486/normal_5fad331b9b067.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4390643/normal_5f9d0ea4214ae.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379045/normal_5f915929409fa.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4402294/normal_5fad9418b572c.pdfIn PDF document text
    • https://kirugivedipabaw.weebly.com/uploads/1/3/4/4/134464293/jimugibun-bopolapeb.pdfIn PDF document text
    • https://folukufisika.weebly.com/uploads/1/3/1/3/131384255/gogowitijunamila.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/zidosozawok/business_process_management_guide.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/79d72272-f16c-4ef6-8664-32ee5715377a/watch_bleach_movie_2_english_dub.pdfIn PDF document text
    • https://s3.amazonaws.com/nunakixuma/75220465654.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d0ad.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD0AD 5204 bytes
SHA-256: efc4eab58c3fb965f100b6d204ff03b13d46ad935489f6e6cfc7183776ca94b5
font_01_sfnt_off0000e261.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE261 10880 bytes
SHA-256: 1393e56a1b2d26421f4c412763facde4c38ef255de1eef397d00f5b37487dce7
font_02_sfnt_off000105da.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x105DA 16080 bytes
SHA-256: d7c0313d84b709fe8a6a90baca56b34c20eeda1db47cffc02c31991c89a68c0d

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