Malicious PDF — malware analysis report

Static analysis result for SHA-256 fa513922ae527964…

MALICIOUS

PDF

38.2 KB Created: 2020-05-16 17:23:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2020-09-24
MD5: 6c42817ab0e0f7e7b6960e36bb05dccc SHA-1: dbcadafcfa4d5dffad80a0bc0c16c98e917da8e5 SHA-256: fa513922ae527964c4387a5d578e784da4d4409455a4187371c435d566e28c10
96 Risk Score

Malware Insights

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

The PDF document contains a large number of embedded external links, identified by the PDF_SEO_LINK_FARM heuristic. These links point to various domains, suggesting a link farm or distribution network. The document body contains text related to a massage roller guide, likely a lure to disguise the malicious intent of directing users to these external resources. No scripts were extracted, limiting the analysis of direct payload execution.

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://oldkingpartners.com/uploads/1/3/1/6/131636872/131636872.html#gaiam+adjustable+massage+roller+exercise+guide PDF link annotation
    • http://adventure-financial.com/uploads/1/3/1/4/131408280/rigelanidizuterelaw.pdfIn PDF document text
    • http://geoffreyrafehall.ca/uploads/1/3/1/4/131453144/108297c148021d.pdfIn PDF document text
    • http://thestreetsmartproject.com/uploads/1/3/1/4/131482864/d0eafd1da461f.pdfIn PDF document text
    • http://graneroalcalapetshop.com/uploads/1/3/0/3/130313398/bejofuv.pdfIn PDF document text
    • http://wickedgumwest.com/uploads/1/3/0/7/130740427/pineparitukanije.pdfIn PDF document text
    • http://mclconsortium.org/uploads/1/3/0/7/130739978/85a0feac3.pdfIn PDF document text
    • http://angelsequinerescue.com/uploads/1/3/0/8/130813906/xafinowosaj.pdfIn PDF document text
    • http://domoliseo.com/uploads/1/3/1/3/131397981/kusenitajijomoki.pdfIn PDF document text
    • http://aaoflightfb.org/uploads/1/3/0/6/130621871/bezoded.pdfIn PDF document text
    • http://asoftanswer.org/uploads/1/3/1/4/131405927/fenobufamaxide_tesilo.pdfIn PDF document text
    • http://topdistribution2.net/uploads/1/3/0/2/130270808/rulonelana_xinefa.pdfIn PDF document text
    • http://morespacecondos.com/uploads/1/3/1/3/131384214/pabodokiw.pdfIn PDF document text
    • http://harnessyourbreath.com/uploads/1/3/0/6/130621791/tegenasoxovuluxifesi.pdfIn PDF document text
    • http://kidrealtor.com/uploads/1/3/0/7/130738786/d58c61f1476b40.pdfIn PDF document text
    • http://madcowstickers.com/uploads/1/3/1/4/131438157/zinozibev_bikejo.pdfIn PDF document text
    • http://burtonmill.com/uploads/1/3/0/6/130620778/1383548.pdfIn PDF document text
    • http://jkisom.com/uploads/1/3/0/6/130604375/nadinisel-ronosanenawos.pdfIn PDF document text
    • http://xn--sotaventclubnatacibadalona-itc.com/uploads/1/3/1/1/131164297/ropoji.pdfIn PDF document text
    • http://myhalerx.com/uploads/1/3/0/3/130313113/c7cebe7e18d89.pdfIn PDF document text
    • http://vdtvision.es/uploads/1/3/0/2/130289218/2ea2233ec55.pdfIn PDF document text
    • http://eliteairproductions.com/uploads/1/3/1/3/131379228/wituj.pdfIn PDF document text
    • http://blaytentbrew.com/uploads/1/3/0/4/130435697/mofefexil.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 5

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_off000069e8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x69E8 10152 bytes
SHA-256: 21835b68641a29c79359b94ed693d21aecc24d53098e73decf1b32b9fed5f904

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