Malicious PDF — malware analysis report

Static analysis result for SHA-256 b1deb73c0042c598…

MALICIOUS

PDF

36.1 KB Created: 2020-06-05 06:38:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2020-09-07
MD5: 5376b29b9e80c4622dddae40e826846f SHA-1: 60294dfb4f13c8ad953884f9c73a8ac4ddb4a91c SHA-256: b1deb73c0042c598aad9e3f7fe05ce0d4a2a94feec6620d0c3f15fc2acb868ba
104 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a large number of external links, identified as a link farm, with the heuristic 'PDF_SEO_LINK_FARM' firing. The 'SE_INVOICE_LURE' heuristic suggests the document's content is designed to trick users into clicking these links, possibly for phishing or malware distribution. The document body contains text related to 'Best xp farm minecraft' and includes several URLs, reinforcing the lure. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

Heuristics 5

  • 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.
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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 http://bilunjii.trevelle.com/uploads/1/3/0/6/130621818/130621818.html#best+xp+farm+minecraft PDF link annotation
    • http://cdntreasurehunter.com/uploads/1/3/0/3/130324027/kalirogef_xujepiri.pdfIn PDF document text
    • http://dx3dlt.co/uploads/1/3/0/6/130604148/sukiguwojepumogob.pdfIn PDF document text
    • http://koshareeagleconsulting.com/uploads/1/3/0/5/130588913/318555.pdfIn PDF document text
    • http://cadezaris.com/uploads/1/3/1/3/131398241/2c4c13db77c0fff.pdfIn PDF document text
    • http://oconnorpropertyservices.org/uploads/1/3/0/5/130550681/998620.pdfIn PDF document text
    • http://bilunjii.trevelle.com/uploads/1/3/0/6/130621818/terms.htmlIn PDF document text
    • http://bilunjii.trevelle.com/uploads/1/3/0/6/130621818/dmca.htmlIn PDF document text
    • http://bilunjii.trevelle.com/uploads/1/3/0/6/130621818/policy.htmlIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://wafadonob.files.wordpress.com/2020/06/dezotonalubapirux.pdfIn PDF document text
    • https://kexedijufud518971457.files.wordpress.com/2020/06/31603946489.pdfIn PDF document text
    • https://janavitim807994190.files.wordpress.com/2020/06/97487956462.pdfIn PDF document text
    • https://pamogori.files.wordpress.com/2020/06/76936188220.pdfIn PDF document text
    • https://dizosolon.files.wordpress.com/2020/06/31618918104.pdfIn PDF document text
    • https://viribufefun175059619.files.wordpress.com/2020/06/venaputekoza.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

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_off000060f7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60F7 10576 bytes
SHA-256: afcdb5f252cf24112419bd8c7dcd6ad018ed5cc2be57c3ce4f3a8a3dd40f312f

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