Malicious PDF — malware analysis report

Static analysis result for SHA-256 19c93ce52af01437…

MALICIOUS

PDF

40.4 KB Created: 2020-03-30 03:31:16 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 98ced682c76fa04b21506f109bbdbcff SHA-1: 571eaa2d35ab78388428aad00b33a0dbf1828e08 SHA-256: 19c93ce52af014375e27bd33a8bf1154a87e79ff420e7c1fd5bb03f952016fa0
92 Risk Score

Malware Insights

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

The PDF document contains a large number of external links, many of which point to PDF files hosted on various domains. The primary lure appears to be a 'calculator for function range and domain', which is likely a pretext to direct users to malicious or phishing websites. The ML classifier strongly indicated maliciousness, and the PDF_SEO_LINK_FARM heuristic confirms the presence of a link farm designed for SEO manipulation, a common tactic for distributing malware or conducting phishing campaigns.

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://74-123-76-231.mgwnet.com/uploads/1/3/0/2/130289363/130289363.html#calculadora+de+funciones+rango+y+dominio
    • http://technologybranch.com/uploads/1/3/0/4/130488087/nofeduwasud.pdf
    • http://supernoobgaming.org/uploads/1/3/0/6/130640107/eab64a72fe4709.pdf
    • http://avalisconsulting.com/uploads/1/3/0/3/130323616/2958607.pdf
    • http://drcarlinbarnes.org/uploads/1/3/0/2/130271245/6695249.pdf
    • http://ikedalab.com/uploads/1/3/1/3/131384414/e58a15b8803fb.pdf
    • http://lojatodasmulheres.com/uploads/1/3/0/8/130874524/6a39191fc003.pdf
    • http://prosetrywms.com/uploads/1/3/0/6/130620689/vovoxetavivud.pdf
    • http://emilylindin.com/uploads/1/3/0/3/130323182/gelexepibew.pdf
    • http://uwwcookieclub.com/uploads/1/3/0/8/130814014/126bb856.pdf
    • http://hostmaster.football90.be/uploads/1/3/0/7/130775400/fc0ef065c7a09.pdf
    • http://viridian-raven.net/uploads/1/3/0/6/130620681/8513709.pdf
    • http://billshandymanservice.net/uploads/1/3/0/2/130291922/4a86f6f0a9ac3d0.pdf
    • http://wakeupamericacampaign.com/uploads/1/3/0/8/130814353/5421612dbd9.pdf
    • http://icewater4u.com/uploads/1/3/0/4/130489090/jujajobav.pdf
    • http://broaddusgoddess.com/uploads/1/3/0/6/130639517/7506992.pdf
    • http://cherry-tree-creative.com/uploads/1/3/0/6/130621959/5209232.pdf
    • http://prcowosso.com/uploads/1/3/0/4/130476078/zuzukawesifag.pdf
    • http://snakecharmed.com/uploads/1/3/0/7/130775997/3bd90f19f45cd.pdf
    • http://essentialsrestoringlife.com/uploads/1/3/0/9/130969249/6333025.pdf
    • http://mouthdoctor.net/uploads/1/3/1/3/131383738/zominogukulisiwos.pdf
    • http://missinglinkbrewing.co.uk/uploads/1/3/0/6/130604210/5174268.pdf
    • http://inworklifejoy.com/uploads/1/3/0/5/130544754/bosesarozaz.pdf
    • http://continentalsilica.com/uploads/1/3/0/2/130271179/fc848d2487d4671.pdf
    • http://jennyruhlcounseling.com/uploads/1/3/0/7/130738777/bujojob.pdf
    • http://housetalkwithcandy.com/uploads/1/3/0/4/130483270/divoxugiw_tijilogizonalu.pdf
    • http://housetalkwithcandy.com/u
    • 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_off000072dd.bin
fb9d4c7e7d70fc422347371eee67dfe014ff3ca889255dc05ab106241aaf3f57		 pdf-font-stream PDF embedded font (sfnt) at offset 0x72DD 8620 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.