Malicious PDF — malware analysis report

Static analysis result for SHA-256 a7ebc03ef0ef1eae…

MALICIOUS

PDF

42.9 KB Created: 2020-04-03 02:28:22 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 90ef874003f7a594b90298cca031143f SHA-1: 31e438d1f37094daa7bd8e91cf2db19f10fcadcf SHA-256: a7ebc03ef0ef1eae957d5c9a276c00d443b6aca29b6305c22c4a1823a39a300c
62 Risk Score

Malware Insights

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

The PDF document contains a large number of external links, a technique often used for SEO poisoning or to distribute further malicious content. The document body, though partially obfuscated, contains a URL that appears to be a lure. The primary heuristic indicates a 'PDF link farm' which strongly suggests the intent is to redirect users to a large number of external resources, likely for malicious purposes.

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://thecabletvterminator.com/uploads/1/3/0/7/130775682/130775682.html#what+is+an+ethics+class+in+college+like
    • http://alcovitusa.com/uploads/1/3/1/3/131378771/e7fa2.pdf
    • http://classebiblica.com/uploads/1/3/1/4/131438011/8a544a5127c.pdf
    • http://swen-uwe-palisch.com/uploads/1/3/0/7/130776747/17fc18df074.pdf
    • http://graniteandmarbleservice.com/uploads/1/3/0/6/130604024/lotuxawi.pdf
    • http://blindturtlebranding.com/uploads/1/3/0/6/130639514/letetubu-gizigitar.pdf
    • http://sgbcourierservices.com/uploads/1/3/0/6/130621509/4652845.pdf
    • http://amoorebook.net/uploads/1/3/0/8/130873914/dunonupejofikorozi.pdf
    • http://pandion404.com/uploads/1/3/0/5/130551461/1590278.pdf
    • http://bigrockface.com/uploads/1/3/0/9/130969536/xemoxuwivezuwe-wemuxaxaju-muwaj.pdf
    • http://donsk.net/uploads/1/3/0/7/130775080/subaxenetuxubabubol.pdf
    • http://moorethemerrier.com/uploads/1/3/0/5/130540046/8474533.pdf
    • http://seattlesearchgroupreference.com/uploads/1/3/0/7/130776067/zoxigobak.pdf
    • http://pineappleprosecco.com/uploads/1/3/0/6/130621394/zulapugevakam_pabevuz_kitefe_telibowiwipax.pdf
    • http://travellight.online/uploads/1/3/0/8/130814040/voviruwav.pdf
    • http://complianceassurance.org/uploads/1/3/0/9/130969408/294539.pdf
    • http://lacasadigiulia.net/uploads/1/3/0/4/130489417/libitisegoworagot.pdf
    • http://musicforsoho.com/uploads/1/3/1/0/131070355/6469163.pdf
    • http://coloradoburgers.com/uploads/1/3/0/8/130813516/kalevezizafozas.pdf
    • http://capitolcommerce.org/uploads/1/3/0/2/130291635/giregolebajozirax.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007096.bin
09a557bd44d9b07e608c34079e50875621d2bbf29479dd53ea7d4ec30f51791e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7096 7792 bytes
font_01_sfnt_off00008ecf.bin
885781ec91db75dc8c4a6a3d3dac0324bdfdb8f2239dab70466c62035ae072da		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8ECF 4144 bytes

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