Malicious PDF — malware analysis report

Static analysis result for SHA-256 a8082d28d57ccbb4…

MALICIOUS

PDF

39.1 KB Created: 2020-03-07 12:42:24 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 8623357c8fb5e4651ae45fd064e896bd SHA-1: fbc20e524dc5ab0acf89914ef8082c041316316f SHA-256: a8082d28d57ccbb4b2e9e88bceb48ee9b1ad2a39d159e4fce21b6ca9f79257a3
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic. These links point to various domains, suggesting a link farm or SEO poisoning tactic to drive traffic to potentially malicious content. The document body itself is heavily obfuscated but contains a reference to one of the primary URLs, indicating an attempt to disguise the malicious intent. 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://gq0j8.bpmtc.com/uploads/1/3/0/3/130323208/130323208.html#sample+meals+for+gastroparesis
    • http://hostmaster.ggsmobilebar.wales/uploads/1/3/0/2/130288498/7508da54f2655.pdf
    • http://newyorkcarpettile.com/uploads/1/3/0/7/130775383/nafonaxovudik.pdf
    • http://psychedynamic.com/uploads/1/3/0/2/130270849/4107399.pdf
    • http://govanmbeki.com/uploads/1/3/0/5/130544968/bobivabewisiwig.pdf
    • http://adrianorchards1925.com/uploads/1/3/0/7/130776164/4245710.pdf
    • http://megandevine.org/uploads/1/3/0/6/130621161/dulomiluma.pdf
    • http://s3platform.org/uploads/1/3/0/3/130379237/sovuvuza.pdf
    • http://novasnow.store/uploads/1/3/0/6/130620874/tatonipa.pdf
    • http://mypostbargain.com/uploads/1/3/0/3/130323251/nebovizidudovup.pdf
    • http://justifideenigma.com/uploads/1/3/0/7/130739454/6137848.pdf
    • http://www.realbalitour.com/uploads/1/3/0/2/130288909/b19ecb.pdf
    • http://lighthousefoundation.net/uploads/1/3/0/2/130272250/jevid.pdf
    • http://barridolaw.com/uploads/1/3/0/4/130476491/nopinesofopo_somasenebeleku_nezusam_mudizebuke.pdf
    • http://mobilosophy.com/uploads/1/3/0/5/130589135/c5e82.pdf
    • http://mybrokersells.net/uploads/1/3/0/6/130639092/bijijuruvi.pdf
    • http://buildersblitzcapecod.org/uploads/1/3/0/5/130588540/jower.pdf
    • http://www.cuchin.org/uploads/1/3/0/5/130551486/befuburidip_tapekudubo_ratux_wanesuguxoxe.pdf
    • http://beaaboud.com/uploads/1/3/0/6/130605175/9698347.pdf
    • http://mrgatewoodcody.com/uploads/1/3/0/6/130620609/2156426.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_off00006d66.bin
40713da31db9c57e1af655e1cb892eeb7bbbd94000baf1a72c25da166094365f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6D66 8408 bytes

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