Malicious PDF — malware analysis report

Static analysis result for SHA-256 dd5be89cda5def19…

MALICIOUS

PDF

37.3 KB Created: 2020-04-18 06:30:40 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 6e5b386edeeb11b6358b3ad1bb7ebbdd SHA-1: c5107e7474aaf32407ddd201cb72459f0232495f SHA-256: dd5be89cda5def194f5f92bf009a773bd91f13dbad2ad87513c35bf5c6b818ae
62 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a "PDF_SEO_LINK_FARM", indicating it hosts a large number of external links. The document body, though heavily obfuscated, contains text that appears to be a lure related to a "Ryzen 3 build guide". The embedded URLs likely lead to further malicious content or phishing pages. 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://asociacionperiodistaspr.org/uploads/1/3/1/4/131406283/131406283.html#ryzen+3+build+guide
    • http://communicationcasesrobina.info/uploads/1/3/1/4/131453432/5833123.pdf
    • http://jordantransportationllc.com/uploads/1/3/0/3/130379145/e36f63632f.pdf
    • http://jamieandsimone.com/uploads/1/3/1/3/131397997/9438112.pdf
    • http://benchmarkcampcatering.com/uploads/1/3/0/7/130775436/c6be005.pdf
    • http://flighttimeent.org/uploads/1/3/1/3/131381761/8871988.pdf
    • http://davidcallanancelebrancyservices.com/uploads/1/3/0/5/130539923/7b9523f3.pdf
    • http://glitzandglampamperparties.com/uploads/1/3/0/6/130605124/1cc1e53eb.pdf
    • http://glitzandglampamperparties.com/upload
    • 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_off0000686a.bin
1f61ce32c2811c81796c2b09ecb7f8517438ac106f9e18623654b32741c772af		 pdf-font-stream PDF embedded font (sfnt) at offset 0x686A 8364 bytes

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