Malicious PDF — malware analysis report

Static analysis result for SHA-256 990d58ef67fe579b…

MALICIOUS

PDF

35.8 KB Authoring application: Solid Converter PDF
MD5: 5f01e176d85e3cbcfefb18fccb4519bf SHA-1: ad1a8330cd2daa43a1b7593a26a64de9ac11a6d9 SHA-256: 990d58ef67fe579b3fc340e0eafdf263735620149dba8b28b8ee9ab8f09dabb7
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a large number of embedded URLs pointing to other PDF files hosted on various domains. This behavior is indicative of a link farm or a distribution mechanism for further malicious content, as suggested by the 'PDF_SEO_LINK_FARM' heuristic. The ClamAV detection also confirms its malicious nature. No scripts were extracted, and the document body was heavily obfuscated, making it difficult to determine a more specific attack pattern beyond link distribution.

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://sgappfactory.com/uploads/1/3/0/6/130604018/rabepixi.pdf
    • http://educate-2-empower.org/uploads/1/3/0/2/130272483/f871ec6fb.pdf
    • http://women-of-steel.com/uploads/1/3/0/6/130603906/26afa.pdf
    • http://mmdpgames.com/uploads/1/3/0/4/130435673/mevejisapas.pdf
    • http://www.ymcargoph.com/uploads/1/3/0/5/130551081/wojeva_sagiman_lapol.pdf
    • http://10xoceansolutions.com/uploads/1/3/0/7/130775986/6998048.pdf
    • http://mojonz.co.nz/uploads/1/3/0/5/130589240/3c9c2a8a.pdf
    • http://mail.iysma.com/uploads/1/3/0/4/130488816/9c8734f.pdf
    • http://bitstructure.org/uploads/1/3/0/6/130639449/4884658.pdf
    • http://stubblefieldhoa.com/uploads/1/3/0/2/130273915/riloz.pdf
    • http://www.baliboyindia.com/uploads/1/3/0/6/130604653/lamamisoro-dunejinufaw.pdf
    • http://mcmanusbuilders.com/uploads/1/3/0/5/130588145/tosagigedare-pavipagupuku-lixufux.pdf
    • http://etomolagi.com/uploads/1/3/0/6/130620468/jemidosopav.pdf
    • http://x-staticapolefitness.com/uploads/1/3/0/6/130605173/dujil.pdf
    • http://www.papercraziness.com/uploads/1/3/0/7/130776122/zufanodisaleda-kaxasomej-ridemepul-nigidasorabi.pdf
    • http://sightlux.info/uploads/1/3/0/7/130776183/tozaxesumidupod.pdf
    • http://truurelief.com/uploads/1/3/0/3/130379167/c419e0ff65.pdf
    • http://betterworld.co.nz/uploads/1/3/0/2/130270946/2040942.pdf
    • http://breadin5minutes.com/uploads/1/3/0/7/130776070/7198664.pdf
    • http://www.prcreliable.com/uploads/1/3/0/3/130313049/2991574.pdf
    • http://edenliterary.com/uploads/1/3/0/5/130540453/e2f984239d.pdf
    • http://dossys.com/uploads/1/3/0/6/130620674/5ecdd8f.pdf
    • http://805.bpmtc.com/uploads/1/3/0/6/130620819/130620819.html#free+download+pdf+to+word+document+converter+software
    • http://www.prcreliable.com/uploads/1/3/0/3/

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002b8e.bin
e57d4d9ee3d081289ec4d7926a0bc129213f27ae5103f917759c8feef6b843a9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B8E 7492 bytes

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