Malicious PDF — malware analysis report

Static analysis result for SHA-256 35e242153296c7f6…

MALICIOUS

PDF

37.3 KB Created: 2020-06-08 21:10:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2020-09-24
MD5: 8c8cb20980d3cb9e23176daaf7e4e861 SHA-1: 3f2b9551578ca9c829e4d484ba87362da5f2d548 SHA-256: 35e242153296c7f6f85c763f01846008962b842527926e769ed8eeea0a9c7791
96 Risk Score

Malware Insights

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

The PDF document contains a large number of external links, a common tactic for SEO poisoning and directing users to malicious sites. The document body, though partially corrupted, contains text related to 'Kali linux' and penetration testing, suggesting a lure to attract users interested in such topics. The heuristic 'PDF_SEO_LINK_FARM' confirms the presence of a link farm, indicating a malicious intent to distribute links to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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://sweetsavorysouthern.com/uploads/1/3/0/2/130291507/130291507.html#kali+linux+revealed+mastering+the+penetration+testing+distribution+pdf+espa%25C3%25B1ol PDF link annotation
    • http://thetowntart.ca/uploads/1/3/0/8/130874389/femewobag-vajujuwa-gekaramamuj-runaturujod.pdfIn PDF document text
    • http://alignon8th.com/uploads/1/3/1/4/131482988/watepikokeru.pdfIn PDF document text
    • http://enspirebrandcbd.com/uploads/1/3/0/2/130289198/milimix.pdfIn PDF document text
    • http://2inspireme.net/uploads/1/3/0/8/130874426/7c6d76f.pdfIn PDF document text
    • http://hireuswriters.com/uploads/1/3/1/0/131070618/pulunoze-rogonig-biponugewew.pdfIn PDF document text
    • http://thedresscodeca.com/uploads/1/3/1/3/131379248/ritakatulerezek_rugakesukikik_pataneg_rujodot.pdfIn PDF document text
    • http://madeiteazy.com/uploads/1/3/1/8/131871499/zogulo.pdfIn PDF document text
    • http://thekitchenshepherd.net/uploads/1/3/0/4/130488847/cf95c95923.pdfIn PDF document text
    • http://familychurchstevenspoint.com/uploads/1/3/0/6/130640032/jaxuruse-zadeg-mevujubixebe-matavitowi.pdfIn PDF document text
    • http://goprofessionalhr.com/uploads/1/3/1/6/131606487/2893912.pdfIn PDF document text
    • http://3x3.undesirable.us/uploads/1/3/1/4/131409127/gikokekuvo.pdfIn PDF document text
    • http://christiancounselorcooperative.com/uploads/1/2/9/1/129105865/129105865.html?canonIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://site82332.mywhc.ca/uploads/1/3/2/3/132303315/loguxuv-kevokenavizuf-jemabiju.pdfIn PDF document text
    • https://napokizi.files.wordpress.com/2020/06/54671391449.pdfIn PDF document text
    • https://vawupuv.files.wordpress.com/2020/06/navitosuzetuvagaw.pdfIn PDF document text
    • https://viledegup.files.wordpress.com/2020/06/63776360209.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 2

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_off00006286.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6286 10364 bytes
SHA-256: c5dd2d7bd48659d2d55a7ce77ef5f33e1806f6dff3e796c6d909b3a38cc1e2c8

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