Malicious PDF — malware analysis report

Static analysis result for SHA-256 5a0cb7e95237db8d…

MALICIOUS

PDF

66.8 KB Authoring application: Soda PDF
MD5: 528eacc69c8e65be24e8317591e70420 SHA-1: 9a851408978405af0d654e3ab86cd425e928e04b SHA-256: 5a0cb7e95237db8dacea7f7aed1956bfa14b72a95de942250278f2adcf0547ce
120 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links to external PDFs hosted on various domains, a technique often used for SEO manipulation or to distribute malicious content. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' strongly suggests a phishing or traffic redirection intent. The document body, though heavily obfuscated, contains references to URLs that are likely part of this link farm, indicating a coordinated effort to direct users to potentially harmful content.

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://morpheusgraphix.com/uploads/1/3/0/3/130379072/vododebesu.pdf
    • http://ocholistictherapy.com/uploads/1/3/0/6/130622101/34ce97d31bd6.pdf
    • http://kiruk.novostroyki-barnaul.ru/uploads/2020/01/28/1878645.pdf
    • http://lavanderiaspadiniromacentro.com/uploads/1/3/0/5/130588268/768aecf7.pdf
    • http://northbrisbanemortgagebrokers.com.au/uploads/1/3/0/4/130476586/xalijaviwumifej.pdf
    • http://atlbloggers.com/uploads/1/3/0/6/130639978/kijutetit_tedef_rojaduvuwu_bivulajo.pdf
    • http://mnnewfs.com/uploads/1/3/0/4/130476172/3619571.pdf
    • http://nexoclean.com/uploads/1/3/0/6/130620819/013b3829b964ddc.pdf
    • http://holypost.biz/uploads/1/3/0/6/130639438/kujazebez.pdf
    • http://thehappygirlstore.com/uploads/1/3/0/5/130590122/130590122.html#gigabyte+ga+p55+usb3

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000137d.bin
5b422f3599d3b52157f3f1cd443ac6dd09ab3377e5b5775558c18cb1d4478a05		 pdf-font-stream PDF embedded font (sfnt) at offset 0x137D 11424 bytes
font_01_sfnt_off00006340.bin
9ece13655fefc7cb27490fb00d740d1168b8dd8e1109f44be50dc672d6032898		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6340 38728 bytes

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