Malicious PDF — malware analysis report

Static analysis result for SHA-256 3d55e398571b291a…

MALICIOUS

PDF

75.4 KB Authoring application: Solid Converter PDF First seen: 2020-09-07
MD5: f2ab802dddf9ef09b032892dccf53c67 SHA-1: 3b92af355fdfcd3378f295b0d635aca832b60e8c SHA-256: 3d55e398571b291a613f534833fa06dbcc51d9e3c7069472d26d25e7ff5c1330
152 Risk Score

Malware Insights

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

The PDF file was identified as malicious by ClamAV and an ML classifier, exhibiting characteristics of a phishing or SEO spam campaign. The heuristic 'PDF_SEO_LINK_FARM' indicates the presence of 31 external PDF links, with the primary domain being 'regalbakeryusa.com'. The document body contains garbled text, suggesting it is not intended for direct user interaction but rather as a container for these links. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

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://regalbakeryusa.com/uploads/1/3/0/7/130775320/754258.pdf In PDF document text
    • http://stoneysbarandgrill.com/uploads/1/3/0/7/130775277/6449868.pdfIn PDF document text
    • http://usactingconsulting.com/uploads/1/3/0/9/130969893/349140.pdfIn PDF document text
    • http://ncexchangeclub.com/uploads/1/3/0/7/130774993/4827179.pdfIn PDF document text
    • http://www.advancedmassagesolutions.com/uploads/1/3/0/7/130740530/lebesegutobo.pdfIn PDF document text
    • http://impexportglobalservices.com/uploads/1/3/0/5/130589088/rugaxokasi-guponevimofufi.pdfIn PDF document text
    • http://www.hoaonlineservices.com/uploads/1/3/0/7/130775606/popunulidulev.pdfIn PDF document text
    • http://www.twoofelke.be/uploads/1/3/0/2/130272932/26da7c447ebaae.pdfIn PDF document text
    • http://levy.team/uploads/1/3/0/6/130605380/9799645.pdfIn PDF document text
    • http://mycasasale.com/uploads/1/3/0/2/130270914/5856447.pdfIn PDF document text
    • http://rcdcgroup.com/uploads/1/3/0/4/130489230/6032081.pdfIn PDF document text
    • http://amksecurities.com/uploads/1/3/0/3/130313299/9571958.pdfIn PDF document text
    • http://rogerstaxesllc.com/uploads/1/3/0/3/130313063/9a41ff01f.pdfIn PDF document text
    • http://underlineconnections.com/uploads/1/3/0/6/130621973/giwomibegen-danuweduteb-zukeximujim-kidofeke.pdfIn PDF document text
    • http://geraldkersh.com/uploads/1/3/0/5/130538994/guripuzozux.pdfIn PDF document text
    • http://ellachinn.com/uploads/1/3/0/6/130604247/tepamum-gibizutuwoza-govefij-warig.pdfIn PDF document text
    • http://musclebears-themusical.com/uploads/1/3/0/7/130738680/feponuwozapekom.pdfIn PDF document text
    • http://simplyfabricated.com/uploads/1/3/0/5/130589131/sifamunun.pdfIn PDF document text
    • http://fredshield.com/uploads/1/3/0/7/130740123/japojekazanosi.pdfIn PDF document text
    • http://allenbygin.com/uploads/1/3/0/7/130776898/gizabeporikigox-rozavisewirimum-bafediperiva.pdfIn PDF document text
    • http://onecrescent.us/uploads/1/3/0/3/130379266/8ab1af77133408.pdfIn PDF document text
    • http://oceannotions.com/uploads/1/3/0/5/130550763/fexofufozi_lavujesiwuwa_liwaruwomafifup.pdfIn PDF document text
    • http://ntwc.group/uploads/1/3/0/8/130814329/mopadoredadagot_wifaxenitoxo_jisosadebebidan.pdfIn PDF document text
    • http://axis79.pleasingfood.com/uploads/1/3/0/5/130546923/130546923.html#terapia+barras+de+access+que+esIn 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

Related samples 5

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

Full JSON: related samples API

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000017eb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x17EB 10104 bytes
SHA-256: 974a0ad9e06e3d599c4fda55363f58ac485a12df46158a6a44f5ca71f124bbab
font_01_sfnt_off0000cc21.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCC21 2392 bytes
SHA-256: 14bf2aa4999369fc182bc45a2ddc096be090f4998e497360e0cca63f913f7d23
font_02_sfnt_off0000d61f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD61F 2856 bytes
SHA-256: 6f13902c56231375baabd7d7a9d552d75f195749e16f985683da6610eceab72e
font_03_sfnt_off0000df99.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF99 16556 bytes
SHA-256: 2ad4c29ddce7133df08314b69d1a74b1f4978eac830db1561c727783cb797fdf

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