Malicious PDF — malware analysis report

Static analysis result for SHA-256 ed18d6979a89ca2b…

MALICIOUS

PDF

39.0 KB Created: 2020-03-14 19:56:37 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 91d91eb2915e16d5e2e64632585d0ed5 SHA-1: 4e66f5626e862c2c4e858757901cebb4d30d8199 SHA-256: ed18d6979a89ca2b78ef62fb15d63dff9f75574a1856b4823de016265472621f
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, as indicated by the PDF_SEO_LINK_FARM heuristic. These links point to various domains, suggesting a link farm or SEO spam operation. The document body contains garbled text and a reference to 'Synaptic package files only', which appears to be a lure. 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://ghostadsofbirmingham.com/uploads/1/3/0/4/130483733/130483733.html#synaptic++package+files+only
    • http://brandiefreeman.net/uploads/1/3/0/2/130272325/6178868.pdf
    • http://www.throwerventures.com/uploads/1/3/0/6/130620700/simoropigarovit_junim.pdf
    • http://mta-sts.mx.dcsav.org/uploads/1/3/0/3/130379065/54813326.pdf
    • http://thelackawaxenmusicfestival.com/uploads/1/3/0/6/130604737/fuxexidevade.pdf
    • http://www.petsitteratlarge.com/uploads/1/3/0/7/130738996/mexumokufopufu-wedexo.pdf
    • http://www.kspnasari.net/uploads/1/3/0/2/130271041/tobazuge.pdf
    • http://www.clinicaamistad.com/uploads/1/3/0/3/130313345/79ff6c331f.pdf
    • http://theoatmealpan.com/uploads/1/3/0/6/130603789/2011616.pdf
    • http://www.ballaratpropertystyling.com.au/uploads/1/3/0/2/130272330/adc7451067988.pdf
    • http://www.michaelmuellerfood.com/uploads/1/3/0/5/130539054/safogenerabakal_zinisu_baneduratob.pdf
    • http://schoolchoicevermont.com/uploads/1/3/0/3/130379814/zilatuga.pdf
    • http://ocalsports.com/uploads/1/3/0/7/130740066/7213512.pdf
    • http://ottiservicesllc.net/uploads/1/3/0/3/130323937/7535245.pdf
    • http://www.matthewcbanner.com/uploads/1/3/0/3/130323624/00a9d552f3.pdf
    • http://justinchamplin.com/uploads/1/3/0/4/130489038/6310109.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_off00006d19.bin
86d991a7a5bfb1f831d6facaaa9b062a27fd0f0514ee42bd4d40a4f6f6238e87		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6D19 8892 bytes

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