Malicious PDF — malware analysis report

Static analysis result for SHA-256 85dcbc739e4fbde0…

MALICIOUS

PDF

38.1 KB Authoring application: Inkscape First seen: 2020-09-24
MD5: e45136cbdb08a55d8ffd2e9a50cc8542 SHA-1: c65a433895b3d0c494d368ffaae5af728952c7d8 SHA-256: 85dcbc739e4fbde0aa83432ac0d03c066a7c30fe88ce2448ff756a45bd12fc98
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains a large number of embedded URLs pointing to external PDF documents, identified by the PDF_SEO_LINK_FARM heuristic. This suggests a tactic to manipulate search engine results or distribute content through a link farm. The ClamAV detection and ML classifier further support its malicious classification, likely related to phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 3

  • ClamAV: Pdf.Phishing.TtraffRobotInstall-7605656-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.TtraffRobotInstall-7605656-0
  • 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.
  • 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://maison-bois-hietala.com/uploads/1/3/0/6/130640133/5909382.pdf In PDF document text
    • http://silbanamyphilosophy.com/uploads/1/3/0/7/130775596/f95235c5f44.pdfIn PDF document text
    • http://dibbledabblemedia.com/uploads/1/3/0/6/130639139/4574100.pdfIn PDF document text
    • http://amandajgordon.co.uk/uploads/1/3/0/6/130639537/23dda30a75.pdfIn PDF document text
    • http://thelevelupshow.com/uploads/1/3/0/6/130620602/dalufumosopelu_ruwagusativuje_kojudiga.pdfIn PDF document text
    • http://cathedraloaksnurseryschool.com/uploads/1/3/0/7/130738569/kusuvor_sazuweriwobev_dinup_menuvinegakuza.pdfIn PDF document text
    • http://drbarrnd.com/uploads/1/3/0/6/130622012/1512060.pdfIn PDF document text
    • http://agnesmusic.net/uploads/1/3/0/5/130544811/wexurugatasuk_popoxe_vogakagepetojep.pdfIn PDF document text
    • http://www.gigapro888.com/uploads/1/3/0/5/130588714/0f07b0801950ba.pdfIn PDF document text
    • http://amodernplace.com/uploads/1/3/0/2/130289577/7390597.pdfIn PDF document text
    • http://mail.voluntarysectorgateway.org/uploads/1/3/0/8/130874385/suwigifonunad.pdfIn PDF document text
    • http://michelledrumheller.com/uploads/1/3/0/4/130489247/9418268.pdfIn PDF document text
    • http://x0940502xstreamtravel.xsideas.com/uploads/1/3/0/9/130969580/130969580.html#lr%280%29+parsing+in+compiler+designIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://fedoraproject.org/wiki/Licensing/LiberationFontLicenseIn PDF document text

Related samples 8

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

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002dc8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2DC8 2864 bytes
SHA-256: 6dc6e07f93ae70488a19e8a398a1c6cda2f5723fc3d3cbe180c5afbb10c3611e
font_01_sfnt_off00003ab3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3AB3 8564 bytes
SHA-256: 55ed0d979a9552f57f63851f0fed423c4d3a499d5332845f5e5596c12e0ba87f

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