Malicious PDF — malware analysis report

Static analysis result for SHA-256 350ce09c1e3a830f…

MALICIOUS

PDF

99.2 KB Authoring application: PDFBox First seen: 2020-09-24
MD5: 954317afbf3ba3b40094f98f30b5d6df SHA-1: 98b2d83888f6f5b3c573f5e7bc8a85ab7768e7a9 SHA-256: 350ce09c1e3a830f436cfae41c7f1c69940bcc778d0231c3e2e875de708ceb95
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a large number of embedded URLs pointing to external PDF documents, a technique often used for SEO manipulation or to host phishing lures. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports a malicious intent related to phishing or traffic redirection. No scripts were extracted from this sample, limiting the analysis of direct execution capabilities.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://applesjourney.org/uploads/1/3/0/7/130738578/764de8af2a.pdf In PDF document text
    • http://dropby2day.com/uploads/1/3/0/2/130270847/kebotosuburepuji.pdfIn PDF document text
    • http://cbschicago.org/uploads/1/3/0/3/130323932/mabokamab.pdfIn PDF document text
    • http://mylevelbest.org/uploads/1/3/0/4/130436125/fekujejotupa_buwumaxomufejun_nemaxegonezaxo.pdfIn PDF document text
    • http://adam-butler.net/uploads/1/3/0/6/130639336/siwadematapune_wumunoximipuz_gununinuno_vuxaw.pdfIn PDF document text
    • http://alangelfand.com/uploads/1/3/0/6/130620640/3109066.pdfIn PDF document text
    • http://dianehulsejewelry.com/uploads/1/3/0/3/130312919/kulijadosetuder.pdfIn PDF document text
    • http://superiorrailandawning.com/uploads/1/3/0/6/130620745/kurovowex.pdfIn PDF document text
    • http://tamparunningcoach.com/uploads/1/3/0/6/130639355/6109706.pdfIn PDF document text
    • http://circushive.com/uploads/1/3/0/6/130640110/17445.pdfIn PDF document text
    • http://nywfj.org/uploads/1/3/0/6/130620202/foluxeg-juraxesadun-kobudurifo.pdfIn PDF document text
    • http://moodstruk.com/uploads/1/3/0/2/130270864/c02088c064b20.pdfIn PDF document text
    • http://autodiscover.efg.de/uploads/1/3/0/2/130271098/70b46dd8b.pdfIn PDF document text
    • http://goodmorninghomes.ca/uploads/1/3/0/8/130874272/9416470.pdfIn PDF document text
    • http://mx.stampgeneral.com/uploads/1/3/0/7/130739280/130739280.html#ethnographic+research+design+meaningIn 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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007001.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7001 13796 bytes
SHA-256: 8406c0fb79c7255f9cbf7be4a73b5e7e17901e7893a60203e4d043fa78a7b681
font_01_sfnt_off000135e8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x135E8 3344 bytes
SHA-256: a824a0f9b9d7edfa1686c7c55cd21c4f9d9a79232c22b101dd03fbfee0129c7b
font_02_sfnt_off000140ed.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x140ED 16232 bytes
SHA-256: a6d7ecc0c704b1c0fe1ae26eacfb7b2b424273c076761d665e623b4216455af5