Malicious PDF — malware analysis report

Static analysis result for SHA-256 54c7390719132763…

MALICIOUS

PDF

66.7 KB Created: 2020-03-24 02:21:21 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6) First seen: 2020-09-24
MD5: baeb022508c6da3f6025f8f945b7580f SHA-1: 4142229a336ef5218b9c5954d92d6bcc92340d92 SHA-256: 54c73907191327637bd95624093c08bc9b4653625ab975c664891d8b969691bd
96 Risk Score

Malware Insights

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

The PDF file contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic. The primary purpose appears to be directing users to a vast network of websites, likely for SEO manipulation or to serve as a landing page for further malicious activity. No scripts were extracted from this sample, and the document body contained mostly garbled text and URLs.

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://hypnose-kinderwunsch.com/uploads/1/3/0/7/130776452/130776452.html#liberalismo+politico+e+economico+wikipedia PDF link annotation
    • http://lucycolquhoun.com/uploads/1/3/0/7/130776516/jubuximarezogarexun.pdfIn PDF document text
    • http://blzzr.com/uploads/1/3/0/7/130776381/6962615.pdfIn PDF document text
    • http://www.twathletics.com/uploads/1/3/0/6/130639042/dofotiwozilap.pdfIn PDF document text
    • http://uslugimedyczne.com/uploads/1/3/1/0/131070674/dagupisuvupivopif.pdfIn PDF document text
    • http://bbailey24.com/uploads/1/3/0/4/130489152/4cead831ec955.pdfIn PDF document text
    • http://www.radiantmothermassage.com/uploads/1/3/0/8/130813887/libeve-bunijerit-nibolagasajesa.pdfIn PDF document text
    • http://cornerofficeinsights.com/uploads/1/3/0/4/130490181/rinisekujefipisapuja.pdfIn PDF document text
    • http://theaterofsoul.com/uploads/1/3/0/7/130738940/f01365.pdfIn PDF document text
    • http://mysteryplus.nl/uploads/1/3/0/8/130814681/fitab.pdfIn PDF document text
    • http://www.lunasunstar.net/uploads/1/3/0/2/130270742/5960037.pdfIn PDF document text
    • http://ackblankets.com/uploads/1/3/0/2/130272582/bubuxaxapamojarubun.pdfIn PDF document text
    • http://wendymckechnie.com/uploads/1/3/0/2/130287923/ketasefozatakev_xiwifuripodeve.pdfIn PDF document text
    • http://clearviewbicyouth.com/uploads/1/3/0/5/130589449/duridegiwozete.pdfIn PDF document text
    • http://watch-new-movie.com/uploads/1/3/0/7/130738675/jegimukikan.pdfIn PDF document text
    • http://neworleansswamptours.org/uploads/1/3/0/7/130738506/veralona.pdfIn PDF document text
    • http://maryloulenhart.com/uploads/1/3/0/6/130620650/721bdfc6b7b5cb2.pdfIn PDF document text
    • http://luis-cunha.net/uploads/1/3/0/4/130490786/3821106.pdfIn PDF document text
    • http://bostonlasertech.com/uploads/1/3/0/5/130539108/polaxopamimesu.pdfIn PDF document text
    • http://anaheimlandscapedesign.com/uploads/1/3/0/2/130272388/mejojibumig.pdfIn PDF document text
    • http://nosborne.com/uploads/1/3/0/7/130776529/367269.pdfIn PDF document text
    • http://thegaragespringkings.com/uploads/1/3/0/6/130603783/fibador_pelubajovilitaf_mipabidet.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
    • https://fedoraproject.org/wiki/Licensing/LiberationFontLicenseIn PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000b891.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB891 9956 bytes
SHA-256: f7e7369b2ed537a7864f16660ec24e41647167ecefa578702bca23992dc1198b
font_01_sfnt_off0000dba2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDBA2 2652 bytes
SHA-256: e91619dfd4c72a85464d95ef1ba4e67df13020651c42071bafbe521a61d9f7fc
font_02_sfnt_off0000e509.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE509 16036 bytes
SHA-256: 779aa567746046747dac965df7fdfb06ff632674a0a99ce247a327bf89f0fa63

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