Malicious PDF — malware analysis report

Static analysis result for SHA-256 ccf105fb5a54952b…

MALICIOUS

PDF

20.9 KB Authoring application: Nitro PDF
MD5: 3d345df30cc4fcd24a1ece9807cfc5ba SHA-1: 29e4f12bbd0deb3d81d6bcf0e0adf5b0fbb3c70d SHA-256: ccf105fb5a54952b6477bc4f23e4d31761654431967913e16b472f8762917e3e
60 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a large number of embedded external links, identified by the PDF_SEO_LINK_FARM heuristic. The document body, though partially corrupted, also contains these URLs, suggesting a lure to external content. The primary intent appears to be directing users to a network of linked PDF files hosted on various domains, likely as part of a phishing or malware distribution scheme.

Heuristics 2

  • 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.
  • 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://alfnevents.org/uploads/1/3/0/2/130287503/tesiwototewo.pdf
    • http://mountephraimtaxpayersfirst.com/uploads/1/3/0/5/130550915/9099014.pdf
    • http://takeawalkwithme.org/uploads/1/3/0/4/130435553/7593155.pdf
    • http://cnymariancenter.net/uploads/1/3/0/4/130483875/palizewejilutovegif.pdf
    • http://far.freedomflow.ru/uploads/2020/01/28/muxigow.pdf
    • http://mjjam.net/uploads/1/3/0/5/130544067/sexetitewa.pdf
    • http://bread.healmarketplace.com/uploads/1/3/0/4/130483836/kogubijikovo_tirel_lotoxexekujafa.pdf

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000115b.bin
47b3044d95a2dbec76ef644c3b7ff112c156551fb7580a51f788206aa1b62e03		 pdf-font-stream PDF embedded font (sfnt) at offset 0x115B 8216 bytes

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