Malicious PDF — malware analysis report

Static analysis result for SHA-256 6d2b680a01a6a2c5…

MALICIOUS

PDF

48.2 KB Authoring application: Solid Converter PDF
MD5: 941f5736443577762b458333b6f83b5c SHA-1: 7040c041ba8b9b3f1bd3c4cc4c1f20be5604813c SHA-256: 6d2b680a01a6a2c56d0fcbb211ef8bf612aef3338999d2a3189d95740af4a7bf
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a large number of embedded links pointing to other PDF files hosted on various domains, indicative of a link farm or redirection scheme. The ClamAV detection and ML classifier strongly suggest malicious intent, likely to distribute further malware or phishing content. The embedded URLs are the primary indicators of compromise, facilitating the download of secondary payloads.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.
  • ClamAV: Pdf.Phishing.TtraffRobotInstall-7605656-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.TtraffRobotInstall-7605656-0
  • 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://lkradio.online/uploads/1/3/0/2/130289443/9c694.pdf
    • http://anne-denmark.com/uploads/1/3/0/2/130289476/jifosetopaxugezaxex.pdf
    • http://westwindcafe.com/uploads/1/3/0/6/130603860/e9bf4e.pdf
    • https://wetukaginowup.weebly.com/uploads/1/3/0/4/130488661/zukaxuwosolubemaxaja.pdf
    • http://smykkemageren.com/uploads/1/3/0/6/130604382/90a39b9440b76.pdf
    • http://mymassagedude.com/uploads/1/3/0/5/130588685/revajakijakekof.pdf
    • http://xn--kyourbeauty-fbb.com/uploads/1/3/0/5/130589433/e4eb4eaf60.pdf
    • http://sonoranshadows.com/uploads/1/3/0/4/130435684/petaxit_zejuviri_kitulesowuvov_pezazuvafasatas.pdf
    • http://mtbreizen.nl/uploads/1/3/0/6/130621060/568854.pdf
    • http://prostoy-recept.ru/uploads/2020/01/28/gojipejupa.pdf
    • http://juliejesternewman.com/uploads/1/3/0/6/130639672/130639672.html#novecento+baricco+pdf+ita
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000148d.bin
c3d2da43c4d5dbb4aa45017eb9fc7a63bc1efa2567de9b43d69b697ed71ecd0e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x148D 12520 bytes
font_01_sfnt_off000076bc.bin
0da5255420a579dbc45a361c49596ba3095afe9a8bd33c90533103b183343319		 pdf-font-stream PDF embedded font (sfnt) at offset 0x76BC 16064 bytes

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