Malicious PDF — malware analysis report

Static analysis result for SHA-256 9c85c7d311c6cc4f…

MALICIOUS

PDF

34.2 KB Created: 2020-04-04 09:32:42 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 3f359c2ceaa8d29798a8ed2f3cb49f98 SHA-1: 87785a0da106c9f4e03cce6fae755e7860e952bc SHA-256: 9c85c7d311c6cc4f30e3bad3b6d991481659aca4f6ec584a425d4529a02ec55e
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, many of which are hosted on domains that appear to be part of a link farm. The document body mentions 'Hawaii general excise form g-45', suggesting a lure to trick users into clicking malicious links disguised as official forms. No scripts were extracted, but the PDF structure and numerous external links indicate a phishing or redirection attempt.

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://kayjoportfolio.com/uploads/1/3/0/4/130488198/130488198.html#hawaii+general+excise+form+g-45
    • http://juliethegardenfairy.com/uploads/1/3/0/3/130313577/9901842.pdf
    • http://thefabulousfoottappers.com/uploads/1/3/0/4/130476878/nofano.pdf
    • http://fairtradersproject.org/uploads/1/3/0/8/130813834/8405838.pdf
    • http://mcmastermarchingband.com/uploads/1/3/0/7/130776720/wileli-lakope.pdf
    • http://lluviaoutsourced.com/uploads/1/3/0/6/130604720/779bc4ca1.pdf
    • http://ftmobile.com/uploads/1/3/0/2/130291591/2baa1.pdf
    • http://paintrockperformance.com/uploads/1/3/0/5/130547659/ad1f8bdea1bf.pdf
    • http://amazonuk.org/uploads/1/3/0/8/130814296/parowowos.pdf
    • http://ha1ung.com/uploads/1/3/0/8/130813400/nuziwudef.pdf
    • http://charlottemcevoy.com/uploads/1/3/0/2/130287943/fopixitifepew-dodowon.pdf
    • http://schmidt-m.com/uploads/1/3/0/6/130604715/8977310.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_off00005c6e.bin
04aafb3e18d97b1dc253f32c17035c48319c61ddcd7e42bc41d643ff05e47467		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5C6E 8272 bytes

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