Malicious PDF — malware analysis report

Static analysis result for SHA-256 7b840d2722babed6…

MALICIOUS

PDF

50.3 KB Created: 2020-05-18 21:14:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7d61d35453f63a684986b719e39cc963 SHA-1: fbd22ea819ca60cc0d086a58f1a2e21963515da2 SHA-256: 7b840d2722babed6098d4703a06b71dbfc076d54b63a219b14cf2ca830c4c7c8
62 Risk Score

Malware Insights

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

The PDF file contains a significant number of external links to other PDF documents hosted on various domains. This behavior is indicative of a link farm or a distribution mechanism for further malicious content. The heuristic 'PDF_SEO_LINK_FARM' strongly suggests this malicious intent. No scripts were extracted from this sample, limiting the ability to determine specific payload delivery or execution methods.

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://loriwolfesafranek.com/uploads/1/3/0/2/130272482/130272482.html#metaphors+in+the+house+on+mango+stre
    • http://globalvipmobile.com/uploads/1/3/0/6/130639634/3252299.pdf
    • http://rstalbotconsulting.com/uploads/1/3/0/7/130738735/kodub.pdf
    • http://coaptcreative.com/uploads/1/3/1/6/131637171/buxotubefumub.pdf
    • http://humananalyticsconsulting.com/uploads/1/3/0/9/130969680/nagepa.pdf
    • http://diversityicebreakers.com/uploads/1/3/1/4/131438419/niteziridar_godeli_venura.pdf
    • http://kauaisoulfoodfusion.com/uploads/1/3/0/2/130274199/ripesapef.pdf
    • http://themaidforce.com/uploads/1/3/1/3/131379294/b349b3a4093414.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_off00009ced.bin
00e05ceadbed2959b8390a9a33b06cc04e9ce54f1c18031403a5e49a1e7cfc1d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9CED 9860 bytes

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