Malicious PDF — malware analysis report

Static analysis result for SHA-256 4ae571010d4a6478…

MALICIOUS

PDF

31.6 KB Created: 2020-05-21 21:22:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2020-09-24
MD5: 8c7ab02b37ed0bb02045641324d92b09 SHA-1: b0802f714bfd3f05364efa55e27b474e982e791f SHA-256: 4ae571010d4a6478e04974814af9562791448541b2a02c4722933afb1c495436
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic. The document body, though heavily obfuscated, contains one of these URLs, suggesting the primary purpose is to direct users to a network of websites. The specific content of the links points to various domains, indicating a link farm or SEO manipulation scheme rather than a direct payload delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

Heuristics 4

  • 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.
  • 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://condoinbiloxi.rentals/uploads/1/3/0/9/130969259/130969259.html#i+refuse+five+finger+death+punch+lyrics PDF link annotation
    • http://dublintactical.com/uploads/1/3/0/6/130604324/tobiraralibena_fivajoru_jifojetedudejit.pdfIn PDF document text
    • http://shawsxvisuals.com/uploads/1/3/1/3/131379034/88dbeb4.pdfIn PDF document text
    • http://smartliftvest.net/uploads/1/3/1/6/131606818/a9d51df.pdfIn PDF document text
    • http://devevo.net/uploads/1/3/0/7/130739802/02cee8032.pdfIn PDF document text
    • http://clt-stories.com/uploads/1/3/1/8/131856649/2355682.pdfIn PDF document text
    • http://10-30screenplaycontest.com/uploads/1/3/1/1/131163533/4195026.pdfIn PDF document text
    • http://impressionismwithanedge.com/uploads/1/3/1/4/131406300/mepojizodop.pdfIn PDF document text
    • http://vanoorspronkadvies.nl/uploads/1/3/0/8/130874085/7416235.pdfIn PDF document text
    • http://naomijoart.com/uploads/1/3/1/4/131452817/1e0e05a9be4890.pdfIn PDF document text
    • http://boabadealuna.com/uploads/1/3/0/6/130639216/9180886.pdfIn PDF document text
    • http://msdocumentaries.org/uploads/1/3/0/3/130379474/sajujofukizuwip.pdfIn PDF document text
    • http://cpanel.luciferianwatch.com/uploads/1/3/0/2/130291884/3838820.pdfIn PDF document text
    • http://gheenproperties.com/uploads/1/3/1/4/131406222/verogubowokepifitul.pdfIn PDF document text
    • http://sjmarketingco.com/uploads/1/3/0/2/130291572/gasozedew.pdfIn PDF document text
    • http://nutritionalpowdersplus.com/uploads/1/3/0/2/130288326/8c9df6.pdfIn PDF document text
    • http://vangchoua.com/uploads/1/3/0/5/130589047/a0f71.pdfIn PDF document text
    • http://chanio.com/uploads/1/3/0/3/130324241/254375.pdfIn PDF document text
    • http://tsayfw.net/uploads/1/3/1/6/131607185/4db7190aab.pdfIn PDF document text
    • http://karlhicksmodernwood.com/uploads/1/3/1/6/131607119/d391e1854f2a4.pdfIn PDF document text
    • http://bankownedhomesidaho.com/uploads/1/3/0/4/130476318/daxikibamosu.pdfIn PDF document text
    • http://cchsgradnight.com/uploads/1/3/0/9/130969706/tudagisafe_suviniwewat_rekawiwupup_tewudivomeraf.pdfIn PDF document text
    • http://wranglerlocating.net/uploads/1/3/1/3/131379503/d1b1549d3c.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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 4

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_off0000536d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x536D 9120 bytes
SHA-256: 60463c1a7400fc55ba72ac6265db7d15fdffe3d368cb048aba3185d41d675f9e

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