Malicious PDF — malware analysis report

Static analysis result for SHA-256 a89c7a0e01b9c5ba…

MALICIOUS

PDF

43.3 KB Authoring application: Scribus First seen: 2020-09-24
MD5: 687083ae9842218e2994e0df1d9839f7 SHA-1: c3d1e681feaffefea533411a1ad3db876b01c428 SHA-256: a89c7a0e01b9c5baffdd13be19e6abee80af7570a91a669ae0fb83ce67e2fc72
152 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded URLs pointing to other PDF files, indicating a link farm. This is strongly suggestive of SEO manipulation or a distribution network for malicious content. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports a phishing or traffic redirection intent. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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://southerncottongoldenretrievers.com/uploads/1/3/0/6/130639148/topake-jijide.pdf In PDF document text
    • http://companiesandmarkets.com/uploads/1/3/0/2/130270863/3fb0d5774.pdfIn PDF document text
    • http://healthcannabis.com/uploads/1/3/0/7/130776130/76ba20.pdfIn PDF document text
    • http://no-naturopaths.org/uploads/1/3/0/7/130738963/fopitavinagor.pdfIn PDF document text
    • http://topshamfinearts.com/uploads/1/3/0/2/130270937/552048.pdfIn PDF document text
    • http://hostmaster.herskovitzwynn.com/uploads/1/3/0/7/130775413/046c0.pdfIn PDF document text
    • http://nharmonymusic.com/uploads/1/3/0/3/130323738/ragopaxamujadu.pdfIn PDF document text
    • http://hostmaster.johnwilsherpaintings.co.uk/uploads/1/3/0/5/130539496/lolexoxefotise.pdfIn PDF document text
    • http://deadbikerssociety.org/uploads/1/3/0/5/130542977/gexunet_tetubikatezova_bunaxekupegafes_ruledad.pdfIn PDF document text
    • http://phytocapital.com/uploads/1/3/0/5/130539016/jexav.pdfIn PDF document text
    • http://www.vegasvoicelessons.com/uploads/1/3/0/6/130621495/130621495.html#atlas+de+anatomia+pernkopf+pdf+descargarIn PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 3

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_off000039fa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x39FA 10768 bytes
SHA-256: 4d5b23bc33cac71180bd29138ccd64312c7708af594c39dad44760d0e4b9aad5
font_01_sfnt_off00005a1b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5A1B 16084 bytes
SHA-256: cd6e2214da57f5b11be58045a259cadbf00e25d96f42fa7f3a4e452f21d7d3e2

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