Malicious PDF — malware analysis report

Static analysis result for SHA-256 fb033b780cc82db4…

MALICIOUS

PDF

35.6 KB Created: 2020-05-12 04:41:21 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 4500d09be327d740a057557fe45b317f SHA-1: 00555d0ad325a83b78a169b37c60afa612d672d1 SHA-256: fb033b780cc82db4db46b978c32e756f9262c086b53b49b496dd5f8f884406b2
122 Risk Score

Malware Insights

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

The PDF file contains a significant number of external links, identified by the PDF_SEO_LINK_FARM heuristic. These links point to various domains, suggesting a link farm or SEO manipulation tactic. The ClamAV detection further confirms its malicious nature. The embedded document body text is heavily obfuscated but contains references to URLs, reinforcing the link farm attack pattern.

Heuristics 4

  • 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.
  • ClamAV: Pdf.Malware.Agent-9780165-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Malware.Agent-9780165-0
  • 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://sauerlandhypotheek.nl/uploads/1/3/0/8/130874475/130874475.html#vivah+movie++bestwap
    • http://o-perspective.com/uploads/1/3/0/9/130969592/1c24c.pdf
    • http://juicejacksonmusic.com/uploads/1/3/0/6/130639675/3ae28bbec7bd.pdf
    • http://erinmariecoaching.com/uploads/1/3/0/5/130589217/jajurituzemeg-gebur-nimosodeleson.pdf
    • http://christianfemininity.org/uploads/1/3/1/0/131070625/wegab.pdf
    • http://readingtote.com/uploads/1/3/0/8/130874289/24dcb.pdf
    • http://thecottonlickers.com/uploads/1/3/1/4/131437089/rewufiw.pdf
    • http://aboveitco.com/uploads/1/3/0/4/130435574/1416406.pdf
    • http://clevelandfishandgame.org/uploads/1/3/0/7/130739867/kofilegoti-kolote-vomugutun.pdf
    • http://travelbugtour.com/uploads/1/3/0/7/130775106/vezixakovatumok.pdf
    • http://wallaceprep.com/uploads/1/3/0/6/130620296/4942914.pdf
    • http://mitchmchardy.com/uploads/1/3/0/6/130639173/wudoludepasabu.pdf
    • http://thekenrick.com/uploads/1/3/0/3/130380002/lafarokalalodonebug.pdf
    • http://geekandfind.com/uploads/1/3/0/4/130476880/mixev_gudabelokata_kiwonadilekib_pojowubi.pdf
    • http://justsaygrace4dinner.com/uploads/1/3/0/6/130640218/cb1944f37df320.pdf
    • http://mingusdesign.us/uploads/1/3/0/7/130774973/musaziko.pdf
    • http://smcapgroup.com/uploads/1/3/0/2/130289692/wowabopuvuk.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • 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_off00005ec0.bin
aaf57bd96b497896591052aa82fc235db060537a61818836dc4a6ed6dc05fe82		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5EC0 10916 bytes

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