Malicious PDF — malware analysis report

Static analysis result for SHA-256 1e72e7d160de801b…

MALICIOUS

PDF

48.8 KB Created: 2020-04-02 07:42:58 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 98c9baa6a09bf59de7af0752eed7a21b SHA-1: afb4b98a1cdc747941f383f1f6466719971ba8e4 SHA-256: 1e72e7d160de801b553650436557ba9c9a32ee6f7c57831a04d85c7def6e4a0f
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious File

The PDF file was flagged by multiple heuristics as malicious, including an ML classifier. It contains a large number of external links, many pointing to similarly structured URLs on different domains. This suggests a link farm or SEO spam operation, potentially redirecting users to malicious content or phishing sites. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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://qualitycareafh.com/uploads/1/3/0/5/130588232/130588232.html#1e+d
    • http://lisamajellahawkins.com/uploads/1/3/0/5/130589249/rizafirafogono.pdf
    • http://privetst.com/uploads/1/3/0/8/130874623/sipoxadanib_babamugulemox_tixofapejokofa.pdf
    • http://terryhuebner.com/uploads/1/3/0/3/130379162/6904144.pdf
    • http://empoweringlifes.com/uploads/1/3/0/6/130621089/buzomebosu-gidupi.pdf
    • http://madhood.com/uploads/1/3/0/8/130814004/539580.pdf
    • http://adrielsteacuppomeranianpuppies4sale.net/uploads/1/3/0/7/130776804/7010997.pdf
    • http://grupotercio.com/uploads/1/3/0/2/130287514/8bd9fc7c24d37.pdf
    • http://prematuresolutions.com/uploads/1/3/0/2/130291434/6027e76bd03f4.pdf
    • http://eventsbynicole.net/uploads/1/3/0/7/130739577/bewanobiwiven-pivisire-digere.pdf
    • http://no1comedyclub.com/uploads/1/3/1/1/131164236/c1a0ec0c86fb27.pdf
    • http://moporter1013marykay.com/uploads/1/3/0/7/130739427/fomufid-kosoluzo-pagidokaribumag-bunediv.pdf
    • http://ukulelebuyingguide.com/uploads/1/3/0/4/130483527/bedamekal-nibukifu-xabujulupifitet.pdf
    • http://christine-carney.com/uploads/1/3/0/3/130324270/5636878.pdf
    • http://invisibleme.space/uploads/1/3/0/9/130969820/cae31a5068.pdf
    • http://krinema.com/uploads/1/3/0/5/130550879/voxuxuzet.pdf
    • http://mx.entechnosliving.com/uploads/1/3/0/2/130272356/28e285881a2a.pdf
    • http://eddollinger-law.com/uploads/1/3/0/2/130289651/zisajiwatuvef.pdf
    • http://arcadesalvacioncarpinteria.com/uploads/1/3/0/4/130483986/798085.pdf
    • http://mail.sdginitiative.org/uploads/1/3/1/3/131398182/zapuvorozed.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_off00009682.bin
b2a6577222478252b590b476ccdccf58b3a584aa64ecb168115a46c5db41f0b4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9682 8276 bytes

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