Malicious PDF — malware analysis report

Static analysis result for SHA-256 2cccfe0a51e1bc6a…

MALICIOUS

PDF

37.6 KB Created: 2020-03-27 09:17:29 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: a507108d5cecc6c498f75ac8e29ab3b0 SHA-1: 0c1c91f19969e0e431c05aeddaaedb60192307ed SHA-256: 2cccfe0a51e1bc6ab4151aee766d54cd60bc255d16a588572f2cb7ee36a95074
92 Risk Score

Malware Insights

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

The PDF file contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic, pointing to various PDF documents hosted on different domains. The document body text, though partially obfuscated, includes a reference to 'Big little lies music season 1 episode 1' and a URL that appears to be a lure. This suggests a link farm or SEO poisoning attack designed to drive traffic to potentially malicious content. 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://allamericanhandyman.org/uploads/1/3/0/6/130621354/130621354.html#big+little+lies+music+season+1+episode+1
    • http://markgoodhewphotography.com/uploads/1/3/1/0/131071043/24c00e23407a.pdf
    • http://mail.fiskeelectric.com/uploads/1/3/0/3/130379058/lukelugiw_xanef.pdf
    • http://bootstrappinbetty.com/uploads/1/3/0/6/130604276/kagixewa_kexafezit_numite_bijefum.pdf
    • http://pmcgdev.com/uploads/1/3/0/2/130270904/makobigo-wixiwin.pdf
    • http://soulbodyhealth.com/uploads/1/3/0/2/130289581/rigujumudala-kukodorefulodo.pdf
    • http://polishmatters.piastinstitute.org/uploads/1/3/0/7/130776872/8278639.pdf
    • http://digitalmei.com/uploads/1/3/0/2/130289493/gufifebunulakojifag.pdf
    • http://www.yourvapour.co.uk/uploads/1/3/0/2/130287367/3405686.pdf
    • http://davidmcdonaldlaw.com/uploads/1/3/0/7/130738841/5418120.pdf
    • http://smgmusicpub.com/uploads/1/3/0/2/130288915/4413278.pdf
    • http://lexily.ca/uploads/1/3/0/2/130291555/jujebapimeposebewo.pdf
    • http://oldadagepress.com/uploads/1/3/0/9/130969061/2708201.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_off000067b5.bin
318b08941cf452f85694fc33aaec2c5fe2195e054e8afab9d975e63d83b92dfb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x67B5 9072 bytes

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