Malicious PDF — malware analysis report

Static analysis result for SHA-256 ae200d2b3aefac99…

MALICIOUS

PDF

39.3 KB Created: 2020-04-04 08:49:30 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 8b3f6e5614670e6dd1bdae9c6c064758 SHA-1: cc0870e1fcfecd69158112602093cb5e12bf5b87 SHA-256: ae200d2b3aefac99736d4180c96c8a51d6918fc0d689434574594f92ec629ae5
62 Risk Score

Malware Insights

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

The PDF file contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic. These links point to various domains, suggesting a link farm or SEO spam campaign. The embedded document body text is heavily corrupted, but the presence of URLs like 'http://fullsoulstudio.com/uploads/1/3/0/4/130490410/130490410.html#n%C3%BAmero+total+de+aristas+de+un+cilindro' indicates a potential lure to external content. No scripts were extracted from this sample.

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://fullsoulstudio.com/uploads/1/3/0/4/130490410/130490410.html#n%C3%BAmero+total+de+aristas+de+un+cilindro
    • http://fairytaleballet.com/uploads/1/3/0/6/130604177/sigeweguvupopod.pdf
    • http://luckofthellama.com/uploads/1/3/1/3/131398380/tamiduwata.pdf
    • http://worldofexotics.com/uploads/1/3/0/3/130379604/zinalededeje.pdf
    • http://natashanatraj.com/uploads/1/3/0/3/130379634/89fb38.pdf
    • http://horsense.net/uploads/1/3/0/7/130739197/wisutubusidupil.pdf
    • http://glitzpageantrentals.com/uploads/1/3/0/4/130476720/nawopijegin.pdf
    • http://wilkesbarregeneralmetz.com/uploads/1/3/0/4/130435650/a9148f2a0bb36b7.pdf
    • http://gsegreaggrae.com/uploads/1/3/0/9/130969492/sevodogal_zotufi_karazot_tigotifuzok.pdf
    • http://www.eatonsquarebureau.com/uploads/1/3/1/4/131437956/356b9.pdf
    • http://ipoq.org/uploads/1/3/0/6/130605161/9029151.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_off000063e8.bin
507c7b07212db487523bae2a9da8d582d08adaf2263501ad5c63d20c697acbf9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x63E8 8096 bytes
font_01_sfnt_off000080fc.bin
885781ec91db75dc8c4a6a3d3dac0324bdfdb8f2239dab70466c62035ae072da		 pdf-font-stream PDF embedded font (sfnt) at offset 0x80FC 4144 bytes

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