Malicious PDF — malware analysis report

Static analysis result for SHA-256 942f465300f3eeb8…

MALICIOUS

PDF

39.4 KB Created: 2020-04-16 07:55:21 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 831f752c79d796df36c8cb7258def6bf SHA-1: b5918f56e9f5f75e2347ab172fb06f19fa7db8de SHA-256: 942f465300f3eeb855029715b180cd21926cfe2be83c43b35dd333eff5c8bedc
70 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 PDF files on unrelated domains, suggesting a link farm or redirection tactic. One of the embedded links, 'http://tedballantine.com/uploads/1/3/0/3/130312961/130312961.html#complaint+letter+template+for+hotel', is presented within the document body, masquerading as a complaint letter template. This indicates a social engineering attempt to trick the user into visiting a potentially malicious URL. No scripts were extracted from this sample.

Heuristics 4

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://tedballantine.com/uploads/1/3/0/3/130312961/130312961.html#complaint+letter+template+for+hotel
    • http://reynoldsvillehistoricalsociety.com/uploads/1/3/0/5/130539979/1533837.pdf
    • http://prismautodetail.com/uploads/1/3/1/4/131406412/duguru-jawimirawilazut-majedavaw-nabav.pdf
    • http://beachykeenstudio.com/uploads/1/3/0/8/130874627/3e7f37f5eaf3c.pdf
    • http://lovesluxuriousbeautysalon.net/uploads/1/3/0/4/130489023/xajoxade_mikexixavasi_tutuzatu_nuwomuriwesox.pdf
    • http://bitpixerssupport.com/uploads/1/3/0/2/130270879/c4f95591c76b.pdf
    • http://charzfitness.com/uploads/1/3/0/8/130813630/vawunowirigiwa.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_off000070b6.bin
4aa6181630d44b7d5ba7cc7787d4ddfe8d9f9c596107f20a8a4eb7ec31871312		 pdf-font-stream PDF embedded font (sfnt) at offset 0x70B6 8704 bytes

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