Malicious PDF — malware analysis report

Static analysis result for SHA-256 66282ac4829e07a9…

MALICIOUS

PDF

45.4 KB Created: 2020-03-30 05:08:50 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 14f06efdfb58bb6948e00391036a49be SHA-1: c7b0410a85dd36d72c65e27af27e9904cd5b0df4 SHA-256: 66282ac4829e07a92effab8bcd5f6718faaeed8c3ecf8ae21dac624113406490
96 Risk Score

Malware Insights

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

The PDF document contains a large number of external links, identified as a 'link farm' by heuristics. The document body, though partially corrupted, contains text related to customer value and satisfaction, likely a lure. The embedded URLs point to various domains, suggesting a campaign to distribute content or manipulate search engine results. No scripts were extracted, but the presence of numerous external links indicates a potential for further malicious activity.

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://ndtasanantonio.org/uploads/1/3/0/7/130776612/130776612.html#creaci%C3%B3n+de+valor+para+el+cliente+satisfacci%C3%B3n+y+lealtad
    • http://livebettertherapeuticservices.com/uploads/1/3/0/7/130775009/mamenuwugiru_xefewekuwavur.pdf
    • http://katedykstra.com/uploads/1/3/0/4/130435956/wakujijezilepexida.pdf
    • http://divasmusicproduction.com/uploads/1/3/0/4/130476150/wusaj-zojobo-xitasas.pdf
    • http://studentsofferingservice.org/uploads/1/3/1/3/131384573/lopifotexosoba.pdf
    • http://bdaconsulting.net/uploads/1/3/0/5/130551174/fikakafizap_motijoxi.pdf
    • http://independantpattesting.com/uploads/1/3/0/2/130287915/8761920.pdf
    • http://andrewchesney.com/uploads/1/3/0/3/130379362/wajurebirasefexufefi.pdf
    • http://storeorg.com/uploads/1/3/0/4/130476401/gozuzejiziwogumazi.pdf
    • http://www.lakeshoreproduce.com/uploads/1/3/1/4/131453623/42919cf7c.pdf
    • http://top50southernmade.com/uploads/1/3/0/7/130739860/vosalofa.pdf
    • http://okeedan.com/uploads/1/3/0/6/130639676/mizowosutoxigebi.pdf
    • http://paraglidinginkorea.com/uploads/1/3/1/4/131407353/0a9b95b1ccf2eec.pdf
    • http://srcompuwiz.com/uploads/1/3/0/6/130620720/kewor.pdf
    • http://friendsoffoxspring.org/uploads/1/3/0/8/130874134/pudobul.pdf
    • http://perfect-trucks.com/uploads/1/3/0/2/130272648/dedup.pdf
    • http://b2wartofphotography.net/uploads/1/3/1/0/131071151/1096825.pdf
    • http://thewisewomancompanion.com/uploads/1/3/0/2/130291551/wekokoxupafur.pdf
    • http://www.elmorepropertyphoto.com/uploads/1/3/0/6/130604486/toganigevapitefidox.pdf
    • http://indolaw.net/uploads/1/3/0/3/130313150/da59ce6f5b2558.pdf
    • http://yousosalty.net/uploads/1/3/0/6/130639500/zogegik.pdf
    • http://amangelcare.com/uploads/1/3/0/6/130621201/lovovotokiwo_lekebubinadosev_xoziwoti.pdf
    • http://lcbeautyext.com/uploads/1/3/0/6/130604078/favovuweb.pdf
    • http://appvolve.com/uploads/1/3/0/9/130969742/vuvofulozu.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_off000083a9.bin
e82e695245b5cafc700920b1c880d140869e45e8a2fafd8b11b984596fd043c8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x83A9 9300 bytes

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