Malicious PDF — malware analysis report

Static analysis result for SHA-256 251bc562e6855625…

MALICIOUS

PDF

27.0 KB Created: 2020-04-11 01:28:38 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 83696c8c793e5e1422f57600e66c2673 SHA-1: 4f54a490aa23bdf260a2736c59a31df736f7c7eb SHA-256: 251bc562e68556258f101d4abdc179d3c505dc79df79c43dc89f991fc6a72a74
62 Risk Score

Malware Insights

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

The PDF file contains a large number of external links, many of which point to seemingly unrelated domains and are structured to appear as downloadable PDF files. This technique, identified by the PDF_SEO_LINK_FARM heuristic, is commonly used to obscure malicious intent and distribute malware. The primary URL, http://74-123-78-2.mgwnet.com/uploads/1/3/1/3/131379866/131379866.html#hidden+colors+1+download, likely serves as the initial lure.

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://74-123-78-2.mgwnet.com/uploads/1/3/1/3/131379866/131379866.html#hidden+colors+1+download
    • http://jtsdistributions.com/uploads/1/3/1/0/131069970/708230267ed3.pdf
    • http://psychotherapycollingwood.com/uploads/1/3/1/0/131071209/vefixebebuf.pdf
    • http://ellasteaparty.com/uploads/1/3/0/4/130477287/xatibedutuxuburuma.pdf
    • http://klifestylelistings.com/uploads/1/3/0/5/130588529/a69eb0fdaba87e2.pdf
    • http://makeupair.solutions/uploads/1/3/1/6/131606024/8fcd9a2b.pdf
    • http://grandsons-buffet.com/uploads/1/3/1/4/131407227/samawijabemazarotate.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_off00004411.bin
a9946a317607062dc7a9e8b8b63622587d64f84e65aaee31cc270b0107ec9cc9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4411 7304 bytes

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