Malicious PDF — malware analysis report

Static analysis result for SHA-256 48b42152e6d1731f…

MALICIOUS

PDF

35.7 KB Created: 2020-03-24 14:07:46 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 5cfad79adcdaebedd0fd4295339ad8e7 SHA-1: a342465d6d80d11ef4bbffa2a5e84a5205f2e948 SHA-256: 48b42152e6d1731f237ceb29d5f0c00d01e108c002c96f4d71d7506a8ca0859c
62 Risk Score

Malware Insights

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

The PDF file contains a large number of external links to various domains, a technique often used for SEO link farming or to redirect users to malicious content. The heuristic 'PDF_SEO_LINK_FARM' specifically flags this behavior, indicating a potential attempt to manipulate search engine results or distribute malware through a network of compromised or controlled sites. The embedded URL also points to a similarly structured HTML file on another domain.

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://cozmomcares.com/uploads/1/3/0/8/130873861/130873861.html#standard+form+math+ax+by+c
    • http://mgracetransitions.com/uploads/1/3/0/6/130621058/5be5c81d909e.pdf
    • http://dtlholidayfest.com/uploads/1/3/0/6/130620840/doxodabegalo.pdf
    • http://ricogossett.com/uploads/1/3/0/5/130588772/a577891d4ae622a.pdf
    • http://suev.solutions/uploads/1/3/0/7/130740072/176107c5b722ba.pdf
    • http://jetson5.com/uploads/1/3/0/6/130639348/lixarod.pdf
    • http://lewisaccounting.net/uploads/1/3/0/9/130969186/tajife.pdf
    • http://citasonlinepasaporte.com/uploads/1/3/0/7/130775383/8966498804c.pdf
    • http://nataschawlotzka.com/uploads/1/3/0/5/130588426/vatamavoze-zadujidineleniv.pdf
    • http://soselectrical.co.nz/uploads/1/3/0/5/130545011/nunizixowudufomejuz.pdf
    • http://www.slowgrinder.com/uploads/1/3/0/6/130604723/bikobisubi-mezuwemapes-satot.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_off0000649a.bin
7e26aae839a28e232f01d248ae341e53f3fcd13dbed8b33cf77c6cb92a107bf4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x649A 7460 bytes

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