Malicious PDF — malware analysis report

Static analysis result for SHA-256 0665e0b175e65419…

MALICIOUS

PDF

36.7 KB Authoring application: ImageMagick
MD5: 106a2f38675ffd4b1dfba20122872be3 SHA-1: 442dfa1f1ed601f75f4d378a0535cd47ed5c8713 SHA-256: 0665e0b175e65419450ae48a81df3279d4b225b9b5988076ee6c696fd4f79fb1
152 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a link farm, with numerous embedded URLs pointing to other PDF files. The document body, though heavily obfuscated, mentions 'Natal chart explanation free', likely a lure to entice users to click the malicious links. The ClamAV detection as 'Pdf.Phishing.TtraffRobotInstall' further supports a phishing or malicious redirection intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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://talltowergames.com/uploads/1/3/0/5/130551057/baxetefefixapom_napomokezi_xedaviwa_ropilurifo.pdf
    • http://payforperformancewebcasts.com/uploads/1/3/0/5/130550713/4dd46e5dd1.pdf
    • http://metrowalkatlanta.org/uploads/1/3/0/2/130273584/8839758.pdf
    • http://nikiclickit.com/uploads/1/3/0/2/130270785/5760671.pdf
    • http://mspledgersclass.com/uploads/1/3/0/6/130639143/netosokep-reruxigefaxid-jojejaturawe.pdf
    • http://kaleokafe.com/uploads/1/3/0/5/130550995/xikot.pdf
    • http://northwestuu.com/uploads/1/3/0/5/130589050/130589050.html#natal+chart+explanation+free

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000118d.bin
75a262543103819aea61768d2f4ffc4e6bb60c090342657d446c2843621fa12b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x118D 9064 bytes

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