Malicious PDF — malware analysis report

Static analysis result for SHA-256 208209738242fdba…

MALICIOUS

PDF

63.2 KB Created: 2020-04-17 01:21:23 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 4645cec1dfe9a151c85623912b007af7 SHA-1: 887c2d298cc265d3a51824e2c99c333273fad265 SHA-256: 208209738242fdba784a617faa3dccba51ec0afb66d07033aafcd40227558cb2
62 Risk Score

Malware Insights

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

The PDF file contains a large number of external links, many of which point to domains that appear to be part of a link farm. The heuristic 'PDF_SEO_LINK_FARM' indicates a mass of external PDF links, suggesting a tactic to distribute malicious content or redirect users to phishing sites. The embedded URL also points to a potentially malicious domain. No scripts were extracted from this sample, limiting the ability to determine specific payload delivery mechanisms.

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://ellaabad.com/uploads/1/3/1/4/131407796/131407796.html#uniformly+accelerated+rectilinear+motion
    • http://commonsensefromthebigsky.com/uploads/1/3/0/5/130544091/2606394.pdf
    • http://cerberuscanecorso.com/uploads/1/3/0/6/130621060/8477217.pdf
    • http://palmettostarbbq.com/uploads/1/3/0/5/130544447/4726216.pdf
    • http://blesscedbeads.com/uploads/1/3/1/4/131437844/5402017.pdf
    • http://cherylscornorcafe.com/uploads/1/3/1/4/131482975/6420047.pdf
    • http://fictionalbookshop.com/uploads/1/3/1/4/131406437/mewew.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00009b15.bin
c7cb6cabcdec329c17140f6a0be3c30613e831ff05c138b4eb720e2922c8da49		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9B15 6300 bytes
font_01_sfnt_off0000aa39.bin
a56a7da0345e125c9ed82b7fe962f4dd365b91798d85a893c95f878969d918ce		 pdf-font-stream PDF embedded font (sfnt) at offset 0xAA39 9252 bytes
font_02_sfnt_off0000cdc6.bin
b96082e3433b28199656468a12432325c05a7b639494d53b9ac2ae82895c8ff8		 pdf-font-stream PDF embedded font (sfnt) at offset 0xCDC6 3652 bytes
font_03_sfnt_off0000da86.bin
0720090508793ef8b34031fd231100a5fac87d4204db81b048de67b53a523898		 pdf-font-stream PDF embedded font (sfnt) at offset 0xDA86 16096 bytes

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