Malicious PDF — malware analysis report

Static analysis result for SHA-256 f5dfd2cd68b9515f…

MALICIOUS

PDF

40.4 KB Created: 2020-03-10 09:54:26 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: ed89ad7c328878346efa980f436c0cf4 SHA-1: 7d014beef3ca363c93164c395e249dd3d12bc230 SHA-256: f5dfd2cd68b9515f4768b1cec1b2e9871ed31fb47a4e71ba89e2a1dd4a7dc7e6
72 Risk Score

Malware Insights

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

The PDF document contains a large number of external links, many of which are numerically slugged and appear to be part of a link farm. One of the embedded URLs, presented as a job description, is likely a lure to direct the user to a malicious site. The heuristic 'SE_INVOICE_LURE' further suggests a deceptive intent, possibly related to payment or financial matters.

Heuristics 4

  • 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.
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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://gibbsmanagementgroup.com/uploads/1/3/0/8/130814115/130814115.html#sr+accounts+payable+specialist+job+description
    • http://mmflackdesigns.com/uploads/1/3/0/4/130488311/2058850.pdf
    • http://mail.courtneyanderson.com/uploads/1/3/0/6/130640048/8438843.pdf
    • http://readymum.com/uploads/1/3/0/7/130739288/ceff78d6.pdf
    • http://leaningsilo.com/uploads/1/3/0/8/130873860/7675339.pdf
    • http://www.cutebernedoodles.com/uploads/1/3/0/7/130775880/6960624.pdf
    • http://colorado-es.com/uploads/1/3/0/6/130604877/zawij.pdf
    • http://becausegoodness.com/uploads/1/3/0/3/130313634/6113220.pdf
    • http://geologiaeconsolidamenti.com/uploads/1/3/0/4/130436152/987c85fa23a38b.pdf
    • http://www.colourmekrazy.co.uk/uploads/1/3/0/8/130815014/mavofodo.pdf
    • http://nurseled.com/uploads/1/3/0/7/130775021/mowaru.pdf
    • http://steeleharbor.net/uploads/1/3/0/8/130874113/nozipemewata.pdf
    • http://9f60hmh065.com/uploads/1/3/0/7/130776078/fiwovukasap-gumemepu.pdf
    • http://www.tinaglialaw.com/uploads/1/3/0/6/130640235/5433996.pdf
    • http://www.brentwoodacctng.com/uploads/1/3/0/3/130312919/wepagoxaxitaparo.pdf
    • http://thebirthbee.com/uploads/1/3/0/5/130550857/dibisiwijakek.pdf
    • http://www.votesmith-tyge.com/uploads/1/3/0/7/130738666/8e1eeeb455ee82.pdf
    • http://mta-sts.mail.allforonefoundation.org/uploads/1/3/0/3/130313066/1cf3d540b48c9.pdf
    • http://montbros.com/uploads/1/3/0/2/130272330/f1ec9.pdf
    • http://treejosh.com/uploads/1/3/0/3/130313145/617dc9fc2.pdf
    • http://hotwifequeenofspades.com/uploads/1/3/0/3/130323409/foxofinozaj.pdf
    • http://thefriendlypear.com/uploads/1/3/0/2/130289365/a853eb7e390c3.pdf
    • http://planetlearning.org/uploads/1/3/0/7/130739830/29df7.pdf
    • http://inspire-and-empower.com/uploads/1/3/0/6/130603807/jugimele.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_off000076c5.bin
0f09d8df245216b73c260fe3bee6cbc3c698d6380d2a86af15a5edaca99e566d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x76C5 7384 bytes

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