Malicious PDF — malware analysis report

Static analysis result for SHA-256 8e0a4c05c480e277…

MALICIOUS

PDF

34.8 KB Created: 2020-04-11 04:01:44 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: bf540becc86afa01475ea700f796f8ac SHA-1: 9dc609ee516eaf8c2987010cbbf2e99dff827157 SHA-256: 8e0a4c05c480e277af19bee560eeb62fb9ffe625324307a3a2b4c4cf7aeb67f6
92 Risk Score

Malware Insights

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

The PDF contains a significant number of external links, identified as a link farm. The primary lure appears to be related to 'shoplyfter full porn', directing users to a specific HTML page. The ML classifier strongly indicated maliciousness, and the PDF structure suggests an attempt to manipulate search engine results or redirect users to potentially harmful content.

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://natural-wanders.com/uploads/1/3/1/4/131438840/131438840.html#shoplyfter+full+porn
    • http://charleylama.com/uploads/1/3/0/8/130815351/4350486.pdf
    • http://joanandmila.com/uploads/1/3/0/4/130478433/360d29ad5c4674c.pdf
    • http://doc-services.de/uploads/1/3/0/3/130324050/lusezokaleniv_kepopazek_rozarilifiku_bukadedanurok.pdf
    • http://taschenwerk-amely.com/uploads/1/3/0/2/130291328/lexutifexem.pdf
    • http://mexicansproblemas.com/uploads/1/3/0/5/130590763/kilapuzabefigag-nejuxujogixito.pdf
    • http://beccasshoppe.net/uploads/1/3/0/2/130272388/kavifama.pdf
    • http://mastervideo.tv/uploads/1/3/0/6/130640162/b887cb09ac78a4c.pdf
    • http://blackhawbuilders.com/uploads/1/3/0/8/130814060/gosuzewamesigo.pdf
    • http://amhomesandproperties.com/uploads/1/3/1/3/131379615/vadipum.pdf
    • http://cavinesslegacy.com/uploads/1/3/0/4/130491852/zikugimerewel.pdf
    • http://buzybeez.net/uploads/1/3/0/4/130436339/7549036138bfe3.pdf
    • http://drivehotshot.com/uploads/1/3/0/7/130738755/467353.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_off0000611a.bin
d641808315066c9340c3571b0a160354d5f31b7254b4e77141a08cacb75aed7a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x611A 7808 bytes

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