Malicious PDF — malware analysis report

Static analysis result for SHA-256 adf9fb60d02486e9…

MALICIOUS

PDF

34.1 KB Created: 2020-04-09 09:59:49 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 47f5a6362830ac5be1edd8b2c0de1cf7 SHA-1: 70db97d4f561d804102c2f31fca1068ce65993e4 SHA-256: adf9fb60d02486e9f4b25f328c6fc636e1ca0134f4764a78424979d0d8c2321f
62 Risk Score

Malware Insights

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

The PDF document contains a large number of external links, many of which point to other PDF files hosted on different domains. This suggests a link farm or redirection scheme designed to obscure the ultimate destination or to distribute malicious content across multiple sites. The primary heuristic indicates a PDF link farm, and the document body contains embedded URLs that are part of this network. 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://lilarot-vipshop.eu/uploads/1/3/1/4/131453684/131453684.html#9+isomeros+de+c7h16
    • http://comesailingcharterschicago.com/uploads/1/3/1/4/131437885/3691752.pdf
    • http://liftupp.org/uploads/1/3/0/7/130775635/9092855.pdf
    • http://miamorebaby.com/uploads/1/3/1/3/131379685/d8c4ce4.pdf
    • http://hermesmercy.com/uploads/1/3/0/6/130620859/048231448cf0.pdf
    • http://vr-authority.com/uploads/1/3/0/7/130739891/d7a1140178de.pdf
    • http://njjitney.com/uploads/1/3/1/3/131379729/dowivo.pdf
    • http://watchitalltv.com/uploads/1/3/0/7/130739369/nibafe-fopefabuko-xozuripuwosij-gopululojoxowa.pdf
    • http://caseguide.org/uploads/1/3/0/4/130483978/nafunex-rikawi-felitofidab.pdf
    • http://corpdevco.com/uploads/1/3/0/3/130324278/toramuxovavuk-vavakapixobuzi.pdf

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000064eb.bin
35dede5ce8150e7d553d4b0ab13b55d8dc50ca6679446b7338f8a5cbe50fa2ad		 pdf-font-stream PDF embedded font (sfnt) at offset 0x64EB 8160 bytes

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