Malicious PDF — malware analysis report

Static analysis result for SHA-256 32a63533cd3e92ba…

MALICIOUS

PDF

37.6 KB Created: 2020-03-20 13:04:49 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6) First seen: 2020-09-24
MD5: f95c5d38f381ad71e82bd4fb2404f47d SHA-1: 016ee6887d1231dfb24aab5e5cf603f6dfa7d632 SHA-256: 32a63533cd3e92ba2201f5ba1fa9c50e8a50417d77a9df6999b21d55edb483f0
96 Risk Score

Malware Insights

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

This PDF file was flagged by an ML classifier as malicious. It contains a large number of external links, identified as a PDF SEO link farm, pointing to various domains. The primary purpose appears to be directing users to a multitude of external websites, likely for SEO manipulation or to host further malicious content. No scripts were extracted from this sample.

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://evokefitness.net/uploads/1/3/0/8/130814758/130814758.html#que+es+una+exponente+en+algebra PDF link annotation
    • http://joescafebrighton.com/uploads/1/3/0/5/130588487/bisirizowez_senad_penajonabikisel_tuvifaxegetorok.pdfIn PDF document text
    • http://ciceroroofrepair.com/uploads/1/3/0/8/130874262/felaxoloruxebanov.pdfIn PDF document text
    • http://murraybrotherscreations.net/uploads/1/3/1/0/131070356/bonadowugopunuz_puwapuruj.pdfIn PDF document text
    • http://thedesignerswife.com/uploads/1/3/0/5/130590653/serew.pdfIn PDF document text
    • http://endurancemedics.com/uploads/1/3/0/2/130291572/xipiba.pdfIn PDF document text
    • http://houseofsteezy.net/uploads/1/3/0/7/130738978/185e9402418f.pdfIn PDF document text
    • http://freshtakepr.com/uploads/1/3/0/8/130873864/nubevutafowibed_jemaganinutavas_xeniwepadejeped.pdfIn PDF document text
    • http://projectindigo.co/uploads/1/3/0/5/130551366/5280581.pdfIn PDF document text
    • http://beaconclean.com/uploads/1/3/0/6/130622000/desupixadilop-pawikex.pdfIn PDF document text
    • http://littlebernie.com/uploads/1/3/0/4/130436089/d84c610fac3fe74.pdfIn PDF document text
    • http://getmyrefundfast.com/uploads/1/3/0/5/130550830/vudewidukos_zarofatapa.pdfIn PDF document text
    • http://en-bici.com/uploads/1/3/0/4/130490250/zedaforo-fazokomiziza.pdfIn PDF document text
    • http://www.vaultdoll.com/uploads/1/3/0/2/130271177/7f276f30210215.pdfIn PDF document text
    • http://datingwithdaniella.com/uploads/1/3/0/6/130605034/badevupufezowogaguk.pdfIn PDF document text
    • http://library.imgacademics.com/uploads/1/3/0/2/130291676/3421e.pdfIn PDF document text
    • http://www.zetasetas.com/uploads/1/3/0/9/130969056/212f527bf71.pdfIn PDF document text
    • http://northhaledontreeexperts.com/uploads/1/3/0/5/130544379/pulubekurolug.pdfIn PDF document text
    • http://trueeleganceofnapa.com/uploads/1/3/0/5/130546244/1811275.pdfIn PDF document text
    • http://www.pacxo.us/uploads/1/3/0/6/130604566/zejasugeke_kukaw_kewasikalo.pdfIn PDF document text
    • http://www.rebeccamguzman.com/uploads/1/3/0/5/130588333/7632158.pdfIn PDF document text
    • http://calciomaestro.com/uploads/1/3/0/5/130540104/lojoxuvapi_tusolujukusupo.pdfIn PDF document text
    • http://tetheredteas.com/uploads/1/3/0/2/130291373/wenobedebugetukega.pdfIn PDF document text
    • http://collectifcontraceptionliege.com/uploads/1/3/0/6/130621387/9336042.pdfIn PDF document text
    • http://mymlmbiz.com/uploads/1/3/0/6/130621280/gojapu.pdfIn PDF document text
    • http://musica-bellaria.de/uploads/1/3/0/5/130545627/lodudivipizi.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

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_off00006906.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6906 8092 bytes
SHA-256: 7c70397bbfb5b5687c5b66ae54aa9b4bba2cb88de6456c8f12f7ade2e578b074

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