Malicious PDF — malware analysis report

Static analysis result for SHA-256 2c1f929ca70b7d78…

MALICIOUS

PDF

39.6 KB Created: 2020-06-17 07:44:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3d4ebb8c29ede884e9d02076767f9b2e SHA-1: 8c637374d03adaca099e82d7b2c7547adeccf226 SHA-256: 2c1f929ca70b7d78bd53a5cbd6d1a84105c2ca63fa7bb2c1db8ea3bdc9657848
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, identified by the PDF_SEO_LINK_FARM heuristic. The document body, though heavily obfuscated, also contains URLs. These links likely serve to redirect users to malicious websites or to manipulate search engine rankings. No scripts were extracted from this sample.

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://trfmontpelier.com/uploads/1/3/0/7/130775172/130775172.html#poems+of+dylan+thomas+pdf
    • http://photoboothfancy.com/uploads/1/3/0/7/130739182/6fb1d9d68c9577.pdf
    • http://deaconentertainment.com/uploads/1/3/0/4/130483409/158bb4c.pdf
    • http://jimtaylorforcitycouncil.org/uploads/1/3/0/5/130590282/67741.pdf
    • http://pfitace.com/uploads/1/3/0/8/130813447/mowajufirilelav.pdf
    • http://naturalmentelibertad.com/uploads/1/3/1/4/131483143/juxewugavi-pulafek.pdf
    • http://ibrahimpdm.com/uploads/1/3/1/8/131871823/9952640.pdf
    • http://webmail.crownsofgloryw1gs.com/uploads/1/3/0/5/130551750/5518242.pdf
    • http://sbn.voyagerwebsites.com/uploads/1/3/1/3/131378916/pupagududimu.pdf
    • http://s0.undesirable.us/uploads/1/3/0/5/130551697/9561910.pdf
    • http://apzone1.com/uploads/1/3/0/2/130273738/6313030.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_off00005d47.bin
1a974af0053e1d641cc7f2139e36c1904090aca187c65f5e7295a7b1bd1b680f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5D47 5028 bytes
font_01_sfnt_off00006e3e.bin
4bb1130719560cd732679dad516438fe96deffbfd3ec4da2289c78fb07923dbc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6E3E 10760 bytes

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