Malicious PDF — malware analysis report

Static analysis result for SHA-256 3ae573ddaf9e9ade…

MALICIOUS

PDF

40.7 KB Authoring application: LibreOffice
MD5: 3c0a773e56abf10b5fd93c89d8c05afd SHA-1: f331e66ab61111b2bcb265b63e3712ddcdf2b4a4 SHA-256: 3ae573ddaf9e9ade38f640965af082cfde8c09232438b40cfe630199c453bf52
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded external links, identified by the PDF_SEO_LINK_FARM heuristic. These links point to various PDF files hosted on different domains, suggesting a link farm or a distribution mechanism for further malicious content. The ClamAV detection as Pdf.Phishing.TtraffRobotInstall-7605656-0 further supports a malicious classification. No scripts were extracted from this sample.

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://www.josiahdavidgathing.com/uploads/1/3/0/9/130969526/1d6ce0217a.pdf
    • http://careersemploymentdirect.com/uploads/1/3/0/7/130739975/mewir.pdf
    • http://creativecalibersales.com/uploads/1/3/0/6/130639860/7792721.pdf
    • http://castlescoins.com/uploads/1/3/0/6/130620390/ramiruxeza_nedatujiw_bavijenasupig.pdf
    • http://rwpdivephotography.com/uploads/1/3/0/7/130738988/nofozopefi.pdf
    • http://nerdyneet.com/uploads/1/3/0/6/130639998/korurulepode.pdf
    • http://www.thewannigan.com/uploads/1/3/0/6/130620899/gelut_botezi_fejejafam.pdf
    • http://alysebonline.com/uploads/1/3/0/3/130313114/d6bbc.pdf
    • http://godenergi.com/uploads/1/3/0/6/130605164/rerefapapik.pdf
    • http://jointventurepros.com/uploads/1/3/0/6/130620852/jikodezipajebufana.pdf
    • http://miacurcargo.com/uploads/1/3/0/5/130539034/6220268.pdf
    • http://thecouturecakecompany.net/uploads/1/3/0/6/130620515/rajodijepokanobinu.pdf
    • http://daveashman.com/uploads/1/3/0/2/130270994/vegodafasibuxisi.pdf
    • http://med-impulse.ru/uploads/1/3/0/5/130588834/xudijuvoro.pdf
    • http://tylerretirement.net/uploads/1/3/0/6/130639278/d55eabc5b6.pdf
    • http://sff7l.salon225.com/uploads/1/3/0/7/130738569/130738569.html#treatment+and+prognosis+of+bacterial+brain+abscess

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000464c.bin
365731c2d822c6c4d8290f77beb22082e1b96ef463674cd349f5d8a24b1da938		 pdf-font-stream PDF embedded font (sfnt) at offset 0x464C 7328 bytes

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