Malicious PDF — malware analysis report

Static analysis result for SHA-256 c3801206a436b762…

MALICIOUS

PDF

37.9 KB Created: 2020-06-03 14:51:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a2209d89576e92468e0209d7b062d607 SHA-1: 0b7e361712fbc0f0ff9026ab921232b64132fc16 SHA-256: c3801206a436b762f296849ec93375dfbe612911beee7009387227735ae8ffe9
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious File

The PDF document contains numerous external links, many of which are dynamically generated and point to potentially malicious content, as indicated by the PDF_SEO_LINK_FARM heuristic. The document body text and an embedded URL suggest a lure related to downloading 'Octopath traveler'. The ML classifier strongly flagged this PDF as malicious, supporting the conclusion that it is designed to trick users into visiting malicious sites or downloading further malware.

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://autodiscover.kilaueakoons.com/uploads/1/3/1/3/131384226/131384226.html#octopath+traveler+download+without+s
    • http://dawn-hudson.com/uploads/1/3/0/9/130969746/82eb712f086d648.pdf
    • http://assonetkennel.com/uploads/1/3/0/2/130288722/1584064.pdf
    • http://hostmaster.jayurveda.ch/uploads/1/3/1/4/131438804/697ba60f8.pdf
    • http://end-days.com/uploads/1/3/0/6/130604756/lawabananiximof-puneka-gakizokalop.pdf
    • http://thewoocloset.com/uploads/1/3/0/3/130313404/befudesodunofada.pdf
    • http://congregationstogetherforpeace.org/uploads/1/3/0/6/130620929/bumusexarefubowoge.pdf
    • http://gunnersnq.com/uploads/1/3/0/7/130738725/pemunegeda_vibaxakafiw.pdf
    • http://o2skinrenu.com/uploads/1/3/0/6/130639876/ce2f098f3d98b.pdf
    • http://lebanonlandscaping.net/uploads/1/3/0/6/130639530/9eb55ee376.pdf
    • http://wwwbeautifulcleanhouse.com/uploads/1/3/0/5/130589048/a176036b21.pdf
    • http://4lr.undesirable.us/uploads/1/3/1/1/131164352/bacc2e96f1ddb6.pdf
    • http://autodiscover.kilaueakoons.com/uploads/1/3/1/3/131384226/terms.html
    • http://autodiscover.kilaueakoons.com/uploads/1/3/1/3/131384226/dmca.html
    • http://autodiscover.kilaueakoons.com/uploads/1/3/1/3/131384226/policy.html
    • http://ltang.people.ua.edu/uploads/1/3/1/8/131871642/xisowejakenejibon.pdf
    • https://pozipotesina.files.wordpress.com/2020/06/lalipilar.pdf
    • https://dozobozugut.files.wordpress.com/2020/06/mekidafazuvopomufebelux.pdf
    • https://melexiv.files.wordpress.com/2020/06/57728433401.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_off000064d3.bin
53da76abf6aafbc6b648f5fab4b3d4c5f2a5afa15aa2c59e4a405673a32bcdca		 pdf-font-stream PDF embedded font (sfnt) at offset 0x64D3 11504 bytes

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