Malicious PDF — malware analysis report

Static analysis result for SHA-256 167c3b36e2d9e404…

MALICIOUS

PDF

39.6 KB Created: 2020-03-29 11:28:52 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: f0038bea4f8486a49b3504ce05fbdb0c SHA-1: 9374be3eaa96bdec1c98bb74544e8fe996ca9b8f SHA-256: 167c3b36e2d9e40433dc381859485a29bb3565ce6a10fdcd81121fd3d4e2a723
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF document contains a large number of embedded external links, identified by the PDF_SEO_LINK_FARM heuristic. The primary link points to 'http://stokesed508webpage.com/uploads/1/3/0/8/130814004/130814004.html#apple+watch+4+and+apple+watch+5', suggesting a lure related to Apple products. The presence of numerous similar URLs indicates a potential link farm or a distribution mechanism for further malicious content. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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://stokesed508webpage.com/uploads/1/3/0/8/130814004/130814004.html#apple+watch+4+and+apple+watch+5
    • http://leo.services/uploads/1/3/0/5/130539886/e0931acc870.pdf
    • http://baylandesign.net/uploads/1/3/0/7/130740420/rexofaluzumi_waxapuvojiw.pdf
    • http://dolledupbabe.com/uploads/1/3/0/4/130476395/vunigotufofi-nubumobalora-sabijaj-libuximutegusi.pdf
    • http://hawkeyfinancial.com/uploads/1/3/0/5/130540049/povoravora.pdf
    • http://kekerelearningcommunity.org/uploads/1/3/0/2/130272928/7af6e73277.pdf
    • http://luliey.com/uploads/1/3/0/7/130776423/wutoligolalo.pdf
    • http://bdacatering.com/uploads/1/3/0/4/130436236/1e433242b67b2.pdf
    • http://arthurdogsontodd.com/uploads/1/3/0/6/130621709/mewubevaj.pdf
    • http://rebeccalmontgomery.com/uploads/1/3/1/4/131438002/759893.pdf
    • http://geoxsale.ca/uploads/1/3/0/4/130491703/5643d894d6b.pdf
    • http://nataliejimenez.com/uploads/1/3/1/4/131407096/4668899.pdf
    • http://thehighlysweetproject.org/uploads/1/3/0/6/130620989/3266323.pdf
    • http://athletacore.com/uploads/1/3/0/6/130620963/1598823.pdf
    • http://sunpict.com/uploads/1/3/0/5/130547286/ximikesedoxiwav_gobolobeforitik.pdf
    • http://beardfraternity.com/uploads/1/3/0/6/130621211/763ac25d.pdf
    • http://smacolab.com/uploads/1/3/0/3/130313403/fobarobomom.pdf
    • http://stressfreemove.net/uploads/1/3/0/7/130775123/5818416.pdf
    • http://workclean.net/uploads/1/3/0/6/130604030/5985402.pdf
    • http://lemmer4villagetrustee.com/uploads/1/3/0/9/130969199/jukatevaberora.pdf
    • http://senegalenergieverte.com/uploads/1/3/0/8/130874210/6554864.pdf
    • http://wtls.us/uploads/1/3/1/0/131070566/foxor.pdf
    • http://hfes2019.org/uploads/1/3/1/4/131437157/3112133.pdf
    • http://justfordivers.com/uploads/1/3/0/8/130813781/wifulezufat.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_off00007223.bin
2f2b96c9355ba38da17d10bc00b4d463a325310a1bfbd40eccd1ddba13e014cc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7223 7904 bytes

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