Malicious PDF — malware analysis report

Static analysis result for SHA-256 bd7a33f512e90b3e…

MALICIOUS

PDF

37.3 KB Created: 2020-03-22 05:57:35 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: b956200aa27218d48aa9d0523fdeb597 SHA-1: 4bb02e6733074832c844ca6498e6d14799cbcfd7 SHA-256: bd7a33f512e90b3efca4f6664141e9c9e87f573ca8f5e26f27928270e2a2f300
92 Risk Score

Malware Insights

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

The PDF contains a large number of external links, as indicated by the PDF_SEO_LINK_FARM heuristic. The document body text, though partially obfuscated, includes a URL that matches one of the extracted links. This suggests the primary purpose is to redirect users to a network of linked content, likely for SEO manipulation or to serve as a distribution point for further malicious payloads.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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://healthyhomesindex.com/uploads/1/3/0/2/130289284/130289284.html#que+significa+condicion+laboral
    • http://myplanetvapor.com/uploads/1/3/0/8/130874307/ff9510c01bbd.pdf
    • http://katherinenation.net/uploads/1/3/0/4/130435791/f154c6.pdf
    • http://realitytvchannel.com/uploads/1/3/0/6/130604238/worijobazivisusure.pdf
    • http://www.pegasuslampwork.co.uk/uploads/1/3/0/5/130588430/9449879.pdf
    • http://sirshi-tea.com/uploads/1/3/0/5/130590019/5923804.pdf
    • http://dogsbestfriendcr.com/uploads/1/3/0/4/130436108/sogidavutose.pdf
    • http://richardbrooksinvestigations.com/uploads/1/3/0/6/130640003/gizaferuvitasi-sifojupol-jakoraj.pdf
    • http://jay-lassiter.com/uploads/1/3/0/5/130543588/3003228.pdf
    • http://debbiechristie.com/uploads/1/3/0/6/130621569/3654763.pdf
    • http://mrgroucho.com/uploads/1/3/0/6/130604295/eace2be.pdf
    • http://www.hellolovley.com/uploads/1/3/0/7/130738945/dobutolewuzudu-sozukazijowo-winaboralet.pdf
    • http://ukrehabadvice.com/uploads/1/3/0/6/130603673/xutewuvo.pdf
    • http://cr-sports.com/uploads/1/3/0/5/130540033/81eb7dce.pdf
    • http://energy-manufacturing.com/uploads/1/3/0/6/130605349/bupokobolurolebadi.pdf
    • http://www.festivaloftheartisan.com/uploads/1/3/0/8/130873927/2bfa27da06.pdf
    • http://thesatelite.com/uploads/1/3/0/6/130620370/76348.pdf
    • http://providence-title.com/uploads/1/3/0/2/130272325/porizopo-nozemeju-pujuzotobirijej-bidedexokolu.pdf
    • http://www.my-twisted-arrow-photo.com/uploads/1/3/0/8/130813658/7375212.pdf
    • http://newimplant.net/uploads/1/3/0/5/130539843/2976029.pdf
    • http://www.jimgambleformayorofthunderbay2018.com/uploads/1/3/0/2/130272905/kekopab.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_off00006d4f.bin
65252e4af4b0a219288a6b9399a7dae437154d58bbd9b9df4d4a7feaec98be75		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6D4F 7044 bytes

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