Malicious PDF — malware analysis report

Static analysis result for SHA-256 366b389f1d195487…

MALICIOUS

PDF

40.7 KB Created: 2020-05-22 09:43:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2020-07-24
MD5: 51a4b6cfa989ebd4f5d093a7855e820c SHA-1: b080d4a45624f3f5b3f0b4b7fba8b627b61b3990 SHA-256: 366b389f1d1954872630e21992e4d402f3dd890aa2e6146b967728c98e0bf04d
96 Risk Score

Malware Insights

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

The PDF document contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic. The document body itself is heavily obfuscated but contains a reference to the URL http://smithsjoinery.com/uploads/1/3/0/2/130273624/130273624.html#concepto+de+planteamiento+del+problema+segun+autores, which is also listed as an embedded URL. The primary purpose appears to be directing users to a network of unrelated websites, likely for SEO spam or to host further malicious content.

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://smithsjoinery.com/uploads/1/3/0/2/130273624/130273624.html#concepto+de+planteamiento+del+problema+segun+autores PDF link annotation
    • http://gofreshcleaner.com/uploads/1/3/0/2/130270941/wokerefanizug.pdfIn PDF document text
    • http://alabamagamewarden.com/uploads/1/3/1/6/131637372/fenamofita.pdfIn PDF document text
    • http://albiruniinc.com/uploads/1/3/0/6/130620729/wivadiwafo_sarikubola_nifobitir_masakediz.pdfIn PDF document text
    • http://gayatrigaia.com/uploads/1/3/1/8/131856432/e27554c716d97a0.pdfIn PDF document text
    • http://familytreeslamaze.com/uploads/1/3/0/3/130323268/7403957b07a16f.pdfIn PDF document text
    • http://vivremaintenant.com/uploads/1/3/0/8/130874358/91e99546a1.pdfIn PDF document text
    • http://sewdivinecreations.com/uploads/1/3/0/6/130604522/dowuxixefavipu_teposow_gusedug.pdfIn PDF document text
    • http://bendavidsonministries.com/uploads/1/3/0/4/130435737/7445212.pdfIn PDF document text
    • http://rescreenmoble.com/uploads/1/3/0/7/130739061/e841a305.pdfIn PDF document text
    • http://cowinfo.org/uploads/1/3/1/8/131871894/1128898.pdfIn PDF document text
    • http://garagedoorrepairsanmarino-ca.com/uploads/1/3/0/9/130969796/nidud.pdfIn PDF document text
    • http://coolsculptingsonomamarin.com/uploads/1/3/0/3/130379371/2865854.pdfIn PDF document text
    • http://collabor8.london/uploads/1/3/0/6/130621409/62c63c1ffbaf930.pdfIn PDF document text
    • http://mainemilestonesspeechtherapy.com/uploads/1/3/1/4/131413603/buvapogojapizitavov.pdfIn PDF document text
    • http://lhugginslawllc.com/uploads/1/3/0/9/130969430/jiduwet.pdfIn PDF document text
    • http://resilience-ventures.com/uploads/1/3/1/3/131384544/47cc7f814a.pdfIn PDF document text
    • http://montagebau.org/uploads/1/3/0/4/130489371/1809866.pdfIn PDF document text
    • http://tuckermaplefarm.com/uploads/1/3/0/6/130621119/sixatopefivufawexiru.pdfIn PDF document text
    • http://jasonis40.com/uploads/1/3/0/2/130272937/rozeba-wagerurapagadaw-xobese-wuxarijozasujat.pdfIn PDF document text
    • http://thelongevityclock.com/uploads/1/3/1/1/131164552/2752097.pdfIn PDF document text
    • http://patagoniabajoceroexpediciones.com/uploads/1/3/1/6/131606803/vikudoxadexasoz-lasexudatuxo.pdfIn PDF document text
    • http://technolgytransfer.com/uploads/1/3/0/7/130776632/3413224.pdfIn PDF document text
    • http://shopfromscratch.com/uploads/1/3/1/4/131453463/3126098.pdfIn PDF document text
    • http://erniespad.com/uploads/1/3/0/6/130620443/37e59a6500318.pdfIn PDF document text
    • http://teamaudioeye.com/uploads/1/3/1/8/131856907/kasipowufi.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 1

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_off00006ef8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6EF8 11412 bytes
SHA-256: 5a275181af0d3124087514f7ddf58b64cb0387b5d195dab64d3f73bb7f3b4fdc

Open this report in the interactive analyzer, or submit your own file for analysis.