Malicious PDF — malware analysis report

Static analysis result for SHA-256 7eb334c5eeb46ba2…

MALICIOUS

PDF

47.9 KB Created: 2020-04-08 10:24:52 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 6b3c21a112e0d4d92294733e37d81b1f SHA-1: 93bf9001c1dc6218cb396afc229260d71eacd52f SHA-256: 7eb334c5eeb46ba2e952c6b71ad14d9e6eb25fc04453b2845843d44464d77aae
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 unrelated domains. This behavior is indicative of a link farm or SEO poisoning tactic, likely intended to drive traffic to malicious content or pages. The primary URL found is http://balanceyogastudiodemo.com/uploads/1/3/1/4/131437668/131437668.html#mechanical+soft+diet, which is part of this network.

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://balanceyogastudiodemo.com/uploads/1/3/1/4/131437668/131437668.html#mechanical+soft+diet
    • http://knottykustoms.com/uploads/1/3/0/6/130639373/sariv.pdf
    • http://likemindedmoms.org/uploads/1/3/0/2/130288514/9083367.pdf
    • http://sligergames.com/uploads/1/3/0/7/130776162/kemowurexejelazuzud.pdf
    • http://charlesacondon.com/uploads/1/3/0/6/130604177/4921426.pdf
    • http://suncoastperioperativeservices.com/uploads/1/3/0/2/130291803/9103b5ffd47.pdf
    • http://cojoworldwide.com/uploads/1/3/0/6/130605198/db17b248.pdf
    • http://nakitahogans.com/uploads/1/3/0/6/130620778/1261419.pdf
    • http://thereasonforwar.com/uploads/1/3/0/6/130604888/e20721fb4.pdf
    • http://coltsound.com/uploads/1/3/0/4/130476208/sufuv-palewela-fopopomasa-vazifanolovuva.pdf
    • http://journeystohealth.net/uploads/1/3/0/8/130873712/bopexeguxosur.pdf
    • http://thecrownjournal.com/uploads/1/3/0/4/130476791/wolofukufedekig.pdf
    • http://worldboss.ca/uploads/1/3/0/9/130969059/f64db19.pdf
    • http://senioryearsfamilymeeting.com/uploads/1/3/0/7/130739704/983310.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007da4.bin
98b439e12a2d0eb5e1ed259fb3ebf53165954ce5a7276dc3e708a73f86e9b715		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7DA4 7924 bytes
font_01_sfnt_off00009c23.bin
779aa567746046747dac965df7fdfb06ff632674a0a99ce247a327bf89f0fa63		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9C23 16036 bytes

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