Malicious PDF — malware analysis report

Static analysis result for SHA-256 57cb2d857485e493…

MALICIOUS

PDF

39.2 KB Authoring application: LibreOffice
MD5: 829a2c7932f4ed75df3cbfe32b2d6340 SHA-1: 443045bacaa27610c37835a3be9e379473a8d284 SHA-256: 57cb2d857485e493d91adab834c00a6dd2389dd950ee60c72cab347327001bf5
120 Risk Score

Malware Insights

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

The PDF file exhibits characteristics of a link farm, embedding a large number of URLs that likely lead to malicious content or phishing pages. The ClamAV detection as 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports a phishing or malicious redirection intent. No scripts were extracted from this sample, 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.
  • 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://societyforemployeerelations.net/uploads/1/3/0/6/130620537/dotorunurerivel-dokanelovorav-penaxojepu-mifabo.pdf
    • http://vickiesworld.com/uploads/1/3/0/3/130313015/lutalimagitali.pdf
    • http://btbrv.com/uploads/1/3/0/8/130814241/nedojotojemozevo.pdf
    • http://nathanbrooker.com.au/uploads/1/3/0/7/130739459/vokesinigu_remixoli_lapejonavu_sixodogal.pdf
    • http://sousvideacademy.com/uploads/1/3/0/8/130874146/8304921.pdf
    • http://plantdrpeter.com/uploads/1/3/0/6/130605376/wewek-tozure-sutikitoj.pdf
    • http://www.traccedarte.com/uploads/1/3/0/6/130639500/duvevomoverab-bisatus-tewivebagu.pdf
    • http://harmoniccollective.com/uploads/1/3/0/6/130605306/0b09a0f44.pdf
    • http://dev.calificapp.com/uploads/1/3/0/3/130324288/jamileluvelupagu.pdf
    • http://galleryindustries.com/uploads/1/3/0/8/130874430/juvijodolaxabuku.pdf
    • http://kclix.net/uploads/1/3/0/7/130775647/5a28c44c3d0.pdf
    • http://ezservicesolutions.com/uploads/1/3/0/5/130546519/130546519.html#neural+network+in+matlab+example
    • http://nathanbrooker.com.au/uploads/1/3/0/7/130739459/vokesi

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003f8c.bin
6a85493c387a16a1e54aca9820df4b2e9d86feb987734e9c39daa162c62e3c78		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3F8C 8808 bytes

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