Malicious PDF — malware analysis report

Static analysis result for SHA-256 1fd5a1312a673cb7…

MALICIOUS

PDF

59.1 KB Created: 2020-04-11 00:46:58 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 8edadb52fc9d34a0428992e72eca9216 SHA-1: e4aefd5500e19b3df19a7db8b7771066e8f25196 SHA-256: 1fd5a1312a673cb7d8f0610013c8d36bc2b5570313f2ba9d67ff91a2525af3a0
62 Risk Score

Malware Insights

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

The PDF file contains a large number of external links, many of which point to seemingly unrelated PDF files hosted on various domains. One specific URL, http://74-123-76-23.mgwnet.com/uploads/1/3/0/5/130550698/130550698.html#equipe+pluridisciplinaire+definition, is directly embedded in the document body. This suggests a link farm or SEO poisoning tactic, likely intended to redirect users to malicious content or phishing pages. No scripts were extracted, limiting the analysis of direct payload execution.

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://74-123-76-23.mgwnet.com/uploads/1/3/0/5/130550698/130550698.html#equipe+pluridisciplinaire+definition
    • http://joaolouroseguros.com/uploads/1/3/1/4/131414297/3048957.pdf
    • http://xcelcobrands.com/uploads/1/3/1/4/131407300/suzozafiri.pdf
    • http://bucksnortnrunpottery.com/uploads/1/3/0/7/130738555/ramekajajinem.pdf
    • http://tallerlit.com/uploads/1/3/0/2/130289662/2959187.pdf
    • http://fireandicedobesandmals.com/uploads/1/3/0/7/130775735/829051.pdf
    • http://cookingbakingdanda.com/uploads/1/3/1/3/131382595/9810261.pdf
    • http://greyghosttac.com/uploads/1/3/0/7/130776626/4838917.pdf
    • http://austrianeconomicspress.us/uploads/1/3/0/4/130477455/safaxadi-jedarumar.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000a87d.bin
865e048690f0ac42b7976b8b7a7861d37e682573c6eb3bd3e5982c003f431193		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA87D 9728 bytes
font_01_sfnt_off0000c9c1.bin
779aa567746046747dac965df7fdfb06ff632674a0a99ce247a327bf89f0fa63		 pdf-font-stream PDF embedded font (sfnt) at offset 0xC9C1 16036 bytes

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