Malicious PDF — malware analysis report

Static analysis result for SHA-256 a73518351db96aef…

MALICIOUS

PDF

32.7 KB Created: 2020-06-05 14:55:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a27c546a31fb48baceff1e3373f9481e SHA-1: 861041efa676a72da7ab1fc3a09c1dc278a9a858 SHA-256: a73518351db96aefc5860956d722a9eb1a30be5bdfc2e7b6307c6dfd5eb7ffe3
92 Risk Score

Malware Insights

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

The PDF file contains a significant number of external links, a technique often used for SEO poisoning or to direct users to malicious sites. The 'ML_NYX_PDF_MALICIOUS' heuristic and the 'PDF_SEO_LINK_FARM' rule strongly indicate malicious intent. The document body, though partially corrupted, contains text that appears to be a lure, and the embedded URLs are the primary indicators of compromise.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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://familywellnessessentials.net/uploads/1/3/0/5/130551581/130551581.html#white+guide+coat
    • http://originconnection.com/uploads/1/3/0/4/130435891/5268026.pdf
    • http://dashwings.com/uploads/1/3/2/3/132302926/vufazaxuzevit.pdf
    • http://costasol.shop/uploads/1/3/0/5/130539095/9015739.pdf
    • http://familywellnessessentials.net/uploads/1/3/0/5/130551581/terms.html
    • http://familywellnessessentials.net/uploads/1/3/0/5/130551581/dmca.html
    • http://familywellnessessentials.net/uploads/1/3/0/5/130551581/policy.html
    • https://detixuge.files.wordpress.com/2020/06/digemejebanozi.pdf
    • https://tokisize.files.wordpress.com/2020/06/woninukesuvumomu.pdf
    • https://muforopolul.files.wordpress.com/2020/06/netuxopuzepage.pdf
    • https://domenisika.files.wordpress.com/2020/06/pivaredakopigeregazegika.pdf
    • https://xigozexetefa.files.wordpress.com/2020/06/89610003712.pdf
    • https://wagudonanako.files.wordpress.com/2020/06/muwub.pdf
    • https://xojusapa.files.wordpress.com/2020/06/60357773356.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_off000055e6.bin
e179af45dca34438fdd507cb9dd63f081857d2a279986fab577dc0d2add0bdfa		 pdf-font-stream PDF embedded font (sfnt) at offset 0x55E6 10080 bytes

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