Malicious PDF — malware analysis report

Static analysis result for SHA-256 f243b9b5c08ce407…

MALICIOUS

PDF

51.6 KB Created: 2020-04-09 22:31:14 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 7799c93f45d38167c52ad9e715ae8077 SHA-1: c75bcd3195aff178c0e852511be34c083861c6bc SHA-256: f243b9b5c08ce407936b9263262bba077e36b9de52786751229150317590da22
62 Risk Score

Malware Insights

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

The PDF document contains a large number of external links to various domains, many of which follow a similar pattern of numeric or book-title slugs. This suggests a link farm or SEO manipulation tactic. The primary URL, http://mayrivermadeup.com/uploads/1/3/1/4/131453399/131453399.html#charlie+y+la+f%C3%A1brica+de+chocolate+libro, is likely a lure to redirect users to a malicious site or download further payloads. No scripts were extracted, limiting the analysis of direct execution capabilities.

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://mayrivermadeup.com/uploads/1/3/1/4/131453399/131453399.html#charlie+y+la+f%C3%A1brica+de+chocolate+libro
    • http://alexislaurenware.com/uploads/1/3/1/4/131406515/gejolu_disodizisul_nenuz.pdf
    • http://kyplumbingandheatingltd.com/uploads/1/3/1/1/131163897/6818451.pdf
    • http://hoellawoffice.com/uploads/1/3/0/2/130272328/3642260.pdf
    • http://density.studio/uploads/1/3/0/2/130289172/de863ff.pdf
    • http://naadrywallllc.com/uploads/1/3/0/6/130621754/5121564.pdf
    • http://are-you-called-to-preach.com/uploads/1/3/1/3/131379958/7021972.pdf
    • http://rent-myplace.com/uploads/1/3/1/4/131438308/zaxesidezefeve_jawejofawekewad_vobomemizek_vemiduni.pdf
    • http://mrsdykes.com/uploads/1/3/0/9/130969845/529780.pdf
    • http://tattooedferret.com/uploads/1/3/0/9/130969278/98fab08012d.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007b90.bin
e7ce3336be404fe9a29f4c1fbb866959d5a7ec6b4177af073f695d3e8bcf6b70		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7B90 10224 bytes
font_01_sfnt_off0000a02e.bin
e91619dfd4c72a85464d95ef1ba4e67df13020651c42071bafbe521a61d9f7fc		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA02E 2652 bytes
font_02_sfnt_off0000a995.bin
779aa567746046747dac965df7fdfb06ff632674a0a99ce247a327bf89f0fa63		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA995 16036 bytes

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