Malicious PDF — malware analysis report

Static analysis result for SHA-256 2160c4edfb36e85d…

MALICIOUS

PDF

40.8 KB Created: 2020-03-24 17:17:26 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6) First seen: 2020-09-24
MD5: 30ca64ceeee8138c6b7cb49619b59050 SHA-1: 64772e774b94675f3ed68205f226fd023c82e8e3 SHA-256: 2160c4edfb36e85d72707c3f832dd4bbf7b614df9fdde32c3cdcdf2ac84a2acd
176 Risk Score

Malware Insights

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

The PDF document contains a large number of external links, identified as a 'PDF_SEO_LINK_FARM' heuristic. The document body text and embedded URLs suggest a social engineering lure, promising 'Crows zero 2 english subtitle full movie' to entice users to click on the numerous links. The 'SE_BROWSER_INSTALL_LURE' heuristic further indicates that the document may prompt users to install software, a common tactic for malware delivery. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINK
    PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
  • Browser extension / update installation lure high SE_BROWSER_INSTALL_LURE
    Document tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
  • 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://ra-metals.com/uploads/1/3/0/2/130287285/130287285.html#crows+zero+2+english+subtitle+full+movie PDF link annotation
    • http://kevsonik.com/uploads/1/3/0/4/130477394/1447966.pdfIn PDF document text
    • http://timelessstx.com/uploads/1/3/0/5/130551338/3283e9.pdfIn PDF document text
    • http://thegoldenretrieverclubofnswinc.shop/uploads/1/3/0/5/130544385/4211485.pdfIn PDF document text
    • http://a1hourservice.com/uploads/1/3/0/5/130539336/tikanino.pdfIn PDF document text
    • http://modernwardrobestyle.com/uploads/1/3/0/6/130639945/dafuputonivutan_gobedo_lesanuwevato_gaviropikin.pdfIn PDF document text
    • http://rodrives.com/uploads/1/3/1/0/131070302/6b5dfe.pdfIn PDF document text
    • http://khayelitshagriefandlossproject.org/uploads/1/3/0/5/130550986/fitivil.pdfIn PDF document text
    • http://pamwhitnack.com/uploads/1/3/0/2/130288363/9688010.pdfIn PDF document text
    • http://msbiotechnologies.com/uploads/1/3/0/6/130603859/betub.pdfIn PDF document text
    • http://jesspray.com/uploads/1/3/0/5/130547924/8cc2de2a0a17f.pdfIn PDF document text
    • http://hostmaster.diled.eu/uploads/1/3/0/5/130551049/tugirevadadatoxav.pdfIn PDF document text
    • http://thebuntruck.com/uploads/1/3/0/7/130739401/livojodavegu.pdfIn PDF document text
    • http://hostmaster.bracecontractors.com/uploads/1/3/0/8/130874564/7920192.pdfIn PDF document text
    • http://statussweetlybroken.com/uploads/1/3/0/6/130620793/4496493.pdfIn PDF document text
    • http://famousonpurpose.com/uploads/1/3/0/7/130739039/nuwafojom.pdfIn PDF document text
    • http://wagtheworld.net/uploads/1/3/0/9/130969131/puzatijowaf_dasebezenitegag.pdfIn PDF document text
    • http://ianexplains.net/uploads/1/3/0/5/130540453/jubewuvukur-wirusazususirap-gimejuw-vogidajufibujis.pdfIn PDF document text
    • http://lerevepianos.com/uploads/1/3/0/6/130603810/negupokixo.pdfIn PDF document text
    • http://usf.graysbooks.com/uploads/1/3/0/4/130490053/aac57f5c96aa.pdfIn PDF document text
    • http://hostmaster.fresh-spaces.co.uk/uploads/1/3/0/3/130323835/gitazoxiruwafadozup.pdfIn PDF document text
    • http://ifs-online.com/uploads/1/3/0/6/130621857/1855b30ca6b3.pdfIn PDF document text
    • http://www.andrewspink.org/uploads/1/3/0/9/130969989/nujiteteri_femutu_kupalesix.pdfIn PDF document text
    • http://stonejodie.com/uploads/1/3/0/9/130969110/3919353.pdfIn PDF document text
    • http://www.imdb.com/title/tt2825120/In 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 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_off00007598.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7598 8188 bytes
SHA-256: ceefe5cfc4b4628dc94f18b9a10f308f23c1c721839f889b66b31fb51ad97537

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