Malicious PDF — malware analysis report

Static analysis result for SHA-256 f8b171a1d065ced6…

MALICIOUS

PDF

31.8 KB Created: 2020-04-11 06:00:50 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: bebd214c38a925350fd6d25b518f4f7c SHA-1: 8b993ed60f9f60b1bc53133ffd885568c21d4f01 SHA-256: f8b171a1d065ced6c0b252a4a5637b94f9890a9c39e32fe510ecb879b10f04ef
94 Risk Score

Malware Insights

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

The PDF contains a large number of external links to other PDF files hosted on various domains, a technique often used for SEO link farming. The ML classifier strongly indicated maliciousness, and the presence of numerous unknown-reputation URLs suggests a malicious intent to redirect users to potentially harmful content. The document body contains garbled text and a partial URL, further supporting the malicious nature of the file.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9984

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://mindfullyconnectedkids.com/uploads/1/3/0/4/130476721/130476721.html#bir+ta%C5%9F+olam+denizlere+at+beni+indir
    • http://stellarminiatureamericanshepherds.com/uploads/1/3/0/5/130550826/9fec11f22cb0.pdf
    • http://www.icaird.org.uk/uploads/1/3/1/3/131398452/4a2d43c58c.pdf
    • http://coastalkitchensanddesign.com/uploads/1/3/0/6/130639787/gukumidetib_mukutafido_jofadu.pdf
    • http://juliawilliams.info/uploads/1/3/0/4/130483142/lumetuvuravudizis.pdf
    • http://gelbkeismyagent.com/uploads/1/3/1/0/131070045/gekadugapadivu_zezilij.pdf
    • http://sparklylynne.com/uploads/1/3/0/8/130874219/tipobazul.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_off0000574f.bin
a9fa92475afec0e15d2f946e031f639f9aa0c240cf0cd1b6a8a2e82421d21b59		 pdf-font-stream PDF embedded font (sfnt) at offset 0x574F 7172 bytes

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