Malicious PDF — malware analysis report

Static analysis result for SHA-256 3e9757e24bc878a8…

MALICIOUS

PDF

33.1 KB Created: 2020-03-15 12:29:05 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 6a3631841547595b2dce25cd55e063a0 SHA-1: 89c65dce9a4133bdebc76dd862ac69638bee4296 SHA-256: 3e9757e24bc878a876dfb1a608a5bf227481750c87aec7a4ad8ca1aa9331c095
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, identified by the PDF_SEO_LINK_FARM heuristic. These links point to various PDF files hosted on different domains, suggesting a link farm or SEO manipulation tactic. The primary URL found in the document body, http://sherwoodsuites-vi.devsite-1.com/uploads/1/3/0/2/130288363/130288363.html#ear+anatomy+3d+free, also appears to be part of this network. No scripts were extracted, and the document body content is largely unreadable, limiting further analysis of the specific lure.

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://sherwoodsuites-vi.devsite-1.com/uploads/1/3/0/2/130288363/130288363.html#ear+anatomy+3d+free
    • http://rebeccalaurensanders.com/uploads/1/3/0/3/130324207/3832179.pdf
    • http://armadilloescapes.com/uploads/1/3/0/7/130776451/sulujivoko.pdf
    • http://mail.wildthingkarts.com/uploads/1/3/0/6/130639889/guvubejofuta.pdf
    • http://newhomeswithashley.com/uploads/1/3/0/7/130776257/mowita_goxidodure.pdf
    • http://bringmorehappy.com/uploads/1/3/0/2/130287837/6773044.pdf
    • http://northamericanbazi.com/uploads/1/3/0/7/130739894/aec743a.pdf
    • http://www.easywayenglish.org/uploads/1/3/0/6/130604378/35562e.pdf
    • http://niyahj.com/uploads/1/3/0/4/130488888/dunuwujagevaxutoxov.pdf
    • http://annearundelhandcenter.com/uploads/1/3/0/6/130604905/6e8f7e36.pdf
    • http://www.midairconnect.net/uploads/1/3/1/0/131070529/jukogaziluvoreloded.pdf
    • http://www.selfadvocacyandstrength.org/uploads/1/3/0/5/130551331/f473fbf43d47687.pdf
    • http://scope-for-growth.com/uploads/1/3/0/4/130436441/jewel.pdf
    • http://tomkeifer.net/uploads/1/3/0/6/130605517/5144878.pdf
    • http://designersconstruction.com/uploads/1/3/0/6/130620782/555b2.pdf
    • http://casadouradapiracanga.com/uploads/1/3/0/6/130603853/1535703.pdf
    • http://riversideatwollaston.com.au/uploads/1/3/0/7/130739140/07a14756de6.pdf
    • http://no-drift.com/uploads/1/3/0/3/130379326/1feb0bcd0d8398.pdf
    • http://www.audacast.com/uploads/1/3/0/4/130436298/xujitivimuvaxuk.pdf
    • http://the7thday.life/uploads/1/3/0/4/130483303/4027706.pdf
    • http://ejean.net/uploads/1/3/0/5/130539235/legabej.pdf
    • http://srwebdeveloper.com/uploads/1/3/0/2/130272500/jupiwefuvigef.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_off00005f7e.bin
a97ada9b592eaecc037e3daf77200e7cae8222f378232d0ce070439592517c7b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5F7E 5832 bytes

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