Malicious PDF — malware analysis report

Static analysis result for SHA-256 4084b979087ef8cb…

MALICIOUS

PDF

37.0 KB Created: 2020-03-22 04:54:05 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 904a3fbd46c41d270c5c88f9629ba536 SHA-1: 0f26f6f3100637cd0f4a305664ea3da7bdfaece5 SHA-256: 4084b979087ef8cb54c22f71fb1052375a0f80f1987fb5c5296c7a7cc40411ed
62 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 hosted on domains that appear to be part of a link farm. The document body text, though partially corrupted, suggests a lure related to Microsoft Word styling. The primary heuristic indicates a PDF_SEO_LINK_FARM, suggesting the document's purpose is to drive traffic to a network of related websites, likely for SEO manipulation or to host malicious content. No scripts were extracted from this sample.

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://ttmusb.com/uploads/1/3/0/5/130543402/130543402.html#how+to+change+normal+style+in+word+2016
    • http://adrianleeproperty.com/uploads/1/3/0/3/130379517/c491913.pdf
    • http://elizabethmontgomeryventures.com/uploads/1/3/0/6/130621625/7890390.pdf
    • http://sallydavisstudio.com/uploads/1/3/0/3/130379356/pigudezipubi.pdf
    • http://pizzabellarestaurant.net/uploads/1/3/0/2/130270997/07394d87fe240.pdf
    • http://lacollectiva.org/uploads/1/3/0/8/130813458/6a41fcd48a64.pdf
    • http://daviscrossfield.com/uploads/1/3/0/7/130740169/132db37e16.pdf
    • http://fendersupply.com/uploads/1/3/0/8/130874496/4072341.pdf
    • http://mail.bluetonemusicusa.com/uploads/1/3/0/4/130477003/12d72f7.pdf
    • http://floodexpress.com/uploads/1/3/0/6/130604470/3999711.pdf
    • http://imgmfr.com/uploads/1/3/0/6/130639757/1380073.pdf
    • http://completehandymaninparis.com/uploads/1/3/0/5/130550833/kadub.pdf
    • http://tops11s.com/uploads/1/3/0/7/130776106/zidumadaxatezorej.pdf
    • http://newtaxllc.com/uploads/1/3/0/2/130289214/5732494.pdf
    • http://www.alohastudionh.com/uploads/1/3/0/5/130550742/sukitir-jeribes.pdf
    • http://knittingleft.net/uploads/1/3/0/6/130639393/lelubarige_jebekerutigafiz_zagowudibu.pdf
    • http://www.spellingshed.co.uk/uploads/1/3/0/2/130289256/lorekaj-wudiwitifufuga-lejuvijinuzani-kolakobelasuwo.pdf
    • http://mail.splitrockassociates.com/uploads/1/3/0/6/130639513/tobaki.pdf
    • http://pursuitofhappiness.live/uploads/1/3/0/5/130540208/80532.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_off0000698e.bin
4594a188cd00cb42090660361350860dff1d45181f4ebae1b24582bc075a3d94		 pdf-font-stream PDF embedded font (sfnt) at offset 0x698E 7368 bytes

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