Malicious PDF — malware analysis report

Static analysis result for SHA-256 5767efd692bf97fa…

MALICIOUS

PDF

36.3 KB Created: 2020-04-04 07:10:08 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 821093fe2feab594311d1d063e49f44d SHA-1: 2b712318a63cf1140b70fbc698da0060e8048ac9 SHA-256: 5767efd692bf97facf55eb0c6e555e06e1b2704701b32d986af2cda174ae3c6c
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 other PDF files hosted on similar domains. This pattern is indicative of an SEO spam or link farm technique, designed to drive traffic to potentially malicious or low-quality content. The embedded URLs suggest a lure related to computer specifications, possibly to disguise the malicious intent.

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://kristena-sustainability.com/uploads/1/3/0/9/130969795/130969795.html#compaq+presario+cq56-103tu+specifications
    • http://charming2atee.net/uploads/1/3/0/5/130551257/1a3d9a906b.pdf
    • http://nicholassjohnson.net/uploads/1/3/1/0/131070688/1293207.pdf
    • http://charlybabyts.com/uploads/1/3/0/3/130379411/1613621.pdf
    • http://chimneysweeprochesterny.com/uploads/1/3/0/9/130969572/dowuxinixurid.pdf
    • http://avaryus.com/uploads/1/3/0/2/130288673/tukulipol_wusulejegus.pdf
    • http://portland-concrete.com/uploads/1/3/0/9/130969858/8249295.pdf
    • http://genzmktg.com/uploads/1/3/0/6/130603818/7922503.pdf
    • http://sustainable-plans.com/uploads/1/3/0/2/130287973/6034470.pdf
    • http://lushgardenhotels.com/uploads/1/3/0/6/130620370/6dc6bc549116d.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 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006336.bin
36cf0be0ff484672a2efb06dced8df8145117887801dcfd0a6f69d1a7455539e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6336 8684 bytes

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