Malicious PDF — malware analysis report

Static analysis result for SHA-256 1e36cac44476014e…

MALICIOUS

PDF

31.5 KB Created: 2020-06-16 08:02:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4de826e72cd1a9d4ab7260562681ed0b SHA-1: 973f9798df659f2df2e2c8c50d867c1bd125192a SHA-256: 1e36cac44476014ea5bba4d20f3ab7db2397ce6a77ced3af3a9761dcb217e7e1
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 PDF documents hosted on different domains, suggesting a link farm or distribution mechanism. The primary purpose appears to be directing users to external content, potentially for SEO manipulation or to serve as a lure for further malicious activity. No scripts were extracted, limiting the analysis of direct payload execution.

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://niamhstjohnlynch.com/uploads/1/3/1/6/131607477/131607477.html#ffxiii+cp+guide
    • http://designkimhornburg.com/uploads/1/3/0/6/130621185/belikivasuno_wokulujub_jupubunam.pdf
    • http://planit.solutions/uploads/1/3/0/4/130476396/864e0e.pdf
    • http://mail3.street-sharp.com/uploads/1/3/1/8/131872079/3273867.pdf
    • http://wrebs.com/uploads/1/3/0/5/130542922/8774498.pdf
    • http://mail.teachenglishstepbystep.com/uploads/1/3/1/6/131637797/besizod.pdf
    • http://smarvsmith.com/uploads/1/3/0/5/130547846/boxoxebuli.pdf
    • http://autodiscover.margaretmorrisonhighlanddance.com/uploads/1/3/0/5/130545818/25e9323a46deeb3.pdf
    • http://prettydelicate.com/uploads/1/3/1/3/131381031/a67473450ddf50.pdf
    • http://qcmaine.com/uploads/1/3/0/6/130604878/a6dd2a6565e.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_off0000517f.bin
cbe6d4c78c2c3cb7c3d355a4b8da67ceb9d99b25f19863581361df9e16fd5d9b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x517F 9928 bytes

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