Malicious PDF — malware analysis report

Static analysis result for SHA-256 2ccefde52121652d…

MALICIOUS

PDF

39.2 KB Authoring application: GIMP
MD5: 248dec97656b54df3cb656e7f777f7f8 SHA-1: a5041f9ca451cbc127b2eae3f73d2b604833bcc6 SHA-256: 2ccefde52121652d82aaac36358f01ee56a0932ae754f21f0f37a8f188b1d5ae
152 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links to external PDF files hosted on various domains. This behavior is indicative of SEO spam or a phishing campaign designed to drive traffic to malicious or deceptive content. The ClamAV detection as 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports the phishing and traffic redirection nature of this file.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://ronstruckshop.com/uploads/1/3/0/7/130775892/vilefofezexeda_sugamegabezuzol_zoguvu.pdf
    • http://tinytikibar.com/uploads/1/3/0/7/130739769/6677601.pdf
    • http://missionarytest.com/uploads/1/3/0/5/130550732/wivuzazekopurekupudo.pdf
    • http://newimageroof.com/uploads/1/3/0/5/130539179/besudukuputotone.pdf
    • http://mindbodyconnectionmassagepilates.com/uploads/1/3/0/5/130588790/motuxofexobu-revax.pdf
    • http://christianawt.com/uploads/1/3/0/5/130588377/5949874.pdf
    • http://risingskyproductions.com/uploads/1/3/0/7/130738779/sipugap_gowozi_dafufusudi.pdf
    • http://thenaturalway.shop/uploads/1/3/0/6/130621622/87d3b2.pdf
    • http://thatiphoneshow.com/uploads/1/3/0/4/130476458/gibomufabumer-kebatevusefe.pdf
    • http://www.chiquelepink.com/uploads/1/3/0/7/130776113/602a7d2.pdf
    • http://bi5q2l.salon225.com/uploads/1/3/0/4/130490719/130490719.html#chord+lagu+hey+jude+the+beatles

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001247.bin
d337c842059165595d11f62796f4fb109108205689a3cb6f66f5445030f72225		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1247 8376 bytes
font_01_sfnt_off00005634.bin
b62e34d0b875f85eacc614ed4facb7e90e00dea8aabe10023831bb36f69a5f2a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5634 16188 bytes

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