Malicious PDF — malware analysis report

Static analysis result for SHA-256 9094cba1787d9f08…

MALICIOUS

PDF

42.2 KB Created: 2020-06-16 03:19:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: bf542b970cc6967c294b9778d176813c SHA-1: 061ac65338d992da7f84a12b5f71692197cdd431 SHA-256: 9094cba1787d9f083092f39f16aaf28c411517fccc61bc41b71136b8f21011a8
92 Risk Score

Malware Insights

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

The PDF file contains a large number of external links, a technique often used for SEO poisoning or to redirect users to malicious sites. The document body, though heavily obfuscated, contains references to weight loss exercises and includes URLs that are likely part of a link farm. The ML classifier strongly indicated maliciousness, supporting the assessment of a malicious link distribution scheme.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

Heuristics 3

  • 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://guardianacademy.net/uploads/1/3/2/3/132303108/132303108.html#10+exercises+to+lose+weight+at+home
    • http://mta-sts.mail.ebenezerbaptistchurchlanc.com/uploads/1/3/1/4/131437889/gaxisaluzoko_kevogubo_gowijadefulawiz.pdf
    • http://pcaregionalconference2019.com/uploads/1/3/1/4/131408131/8934598.pdf
    • http://torontoairbnbcleaning.ca/uploads/1/3/0/5/130590036/nuxiferekonured_xarebo.pdf
    • http://autodiscover.laindiscretafm.com/uploads/1/3/0/5/130546244/wemigabavov.pdf
    • http://glcchurch.site/uploads/1/3/1/4/131409761/5546261.pdf
    • http://mail.martinsvillesoapworks.com/uploads/1/3/2/3/132302843/kifinajobesuta.pdf
    • http://webdisk.tjpfitness.com/uploads/1/3/0/5/130551363/c6756d9b011e2.pdf
    • http://ipureness.com/uploads/1/3/0/2/130288926/dokukoposijo_milavubudafudu.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007b95.bin
a98da7282a97c7b0af03a1141892757cd15d2608851ab41feaa06b70a88e30b9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7B95 10144 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.