Malicious PDF — malware analysis report

Static analysis result for SHA-256 de0fbec7fa3b55d0…

MALICIOUS

PDF

42.5 KB Authoring application: Serif PagePlus
MD5: 534e2fc84b123ba167b3947f9b55fba7 SHA-1: 305bf1b8e055be90cd137e051384f15794a1a8ec SHA-256: de0fbec7fa3b55d0ff44f33c2bfaba566a251a8bbd193a3b02bf76308ebd5505
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 external PDF documents hosted on various domains. This behavior is indicative of a link farm used to distribute malicious content or conduct phishing attacks. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports the phishing classification.

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://mudgleyholidayhouse.com/uploads/1/3/0/4/130483900/reses.pdf
    • http://1ststeptolife.com/uploads/1/3/0/6/130621622/golorog.pdf
    • http://albatrosshomebuyers.com/uploads/1/3/0/2/130288731/4716845.pdf
    • http://newearthwarrior.org/uploads/1/3/0/2/130287291/00a41a4a84f7a.pdf
    • http://chloelgroup.com.au/uploads/1/3/0/3/130323479/virezekamewipusu.pdf
    • http://notestotheunderground.com/uploads/1/3/0/6/130639052/luganepoxa-jolazur-dodojerukima.pdf
    • http://newstylemarket.com/uploads/1/3/0/4/130476410/130476410.html#briefing+template+ppt

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000010dc.bin
c82db9e2522c0d1bf9f84fde36e7e4652e3319293767e3f3f34eb86fb87aa08e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10DC 8156 bytes

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