Malicious PDF — malware analysis report

Static analysis result for SHA-256 9b945c288482a82f…

MALICIOUS

PDF

43.4 KB Authoring application: ImageMagick First seen: 2020-08-10
MD5: 1c41782253f953da0306241802a46dd8 SHA-1: fb0795d90806caacbab477c2b384c7b2b61ceb55 SHA-256: 9b945c288482a82f2e17d4afd868fa9b130012638f842ca42e91d35657e20b01
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.001 PowerShell

The PDF was flagged by ClamAV as 'Pdf.Phishing.TtraffRobotInstall-7605656-0' and a critical heuristic detected a mass external PDF link farm. The embedded URLs point to various PDF files, suggesting a phishing or SEO spam campaign. No scripts were extracted, limiting the analysis of direct malicious actions.

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://nupu.cheriben-site.com/uploads/2020/01/28/ruwopati.pdf In PDF document text
    • http://motion-sickness.com.au/uploads/1/3/0/4/130488780/diweref.pdfIn PDF document text
    • http://cecilyeiferle.com/uploads/1/3/0/3/130313466/pubefoniko_nuziz_xebasivemober.pdfIn PDF document text
    • http://bobbodagreen.com/uploads/1/3/0/2/130273733/semumakumop.pdfIn PDF document text
    • http://kellerpestpros.com/uploads/1/3/0/2/130270792/3210695.pdfIn PDF document text
    • http://theheroinesclub.com/uploads/1/3/0/6/130639948/eaf8679fe880.pdfIn PDF document text
    • http://soque.net/uploads/1/3/0/2/130270887/130270887.html#mhw+dragon+kinsectIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn 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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001249.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1249 8244 bytes
SHA-256: 4a9c066e1d4e5949bb2899a693aaa97911a50ead5bd1d3c63eabb0a88f228d76
font_01_sfnt_off000059d2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x59D2 16068 bytes
SHA-256: 6db2f878e0fd57d3a351d0d81a5ccd7b58f68df6728dadc3aee3ebeb1a1d6e60
font_02_sfnt_off00006e20.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E20 2860 bytes
SHA-256: 4d9ec2aec8f1ca6bebe1b56492fd55a77bba3a6e98efb76508c1b835d4eb9912

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