Malicious PDF — malware analysis report

Static analysis result for SHA-256 9c8cbf4a052b7f9b…

MALICIOUS

PDF

28.9 KB Created: 2020-04-15 13:49:38 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 7c827af851c85a32eaf977834dcb1f0a SHA-1: e039db3f24496e56b909a44e31e7e663750af037 SHA-256: 9c8cbf4a052b7f9b1ea9a743308640e727f64058a0839954ff8e3738f3b2d7d8
62 Risk Score

Malware Insights

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

The PDF document was identified as malicious due to the presence of a large number of external links, a technique often used to redirect users to malicious sites. The heuristic 'PDF_SEO_LINK_FARM' specifically flags this behavior, indicating a potential link farm designed for SEO manipulation or to host phishing content. No scripts were extracted from this sample, limiting the analysis of direct payload delivery mechanisms.

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://hollybrookfarmclub.net/uploads/1/3/0/8/130814226/130814226.html#satellite+weather+report+mumbai
    • http://mishticakesandparties.com/uploads/1/3/1/4/131407278/girogowizemu-pisojono.pdf
    • http://aceofdeuces.com/uploads/1/3/0/4/130436234/b3ecf787844.pdf
    • http://rumbleandgroove.com/uploads/1/3/0/2/130271094/dafetigisilok.pdf
    • http://kaenaat.com/uploads/1/3/0/9/130969130/7237284.pdf
    • http://janaverheyen.de/uploads/1/3/0/4/130483673/jadisi.pdf
    • http://friendsofstmarksprimary.org/uploads/1/3/0/6/130639404/7757065.pdf
    • http://drjonesaesthetics.com/uploads/1/3/0/6/130604056/8916841.pdf
    • http://joshkanownik.com/uploads/1/3/0/7/130776316/wividireda.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_off00004af6.bin
72f1956e6b736617a43c0e0b0665ecda9c94a0c2bf208b220c8ad70727d25ade		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4AF6 7032 bytes

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