Malicious PDF — malware analysis report

Static analysis result for SHA-256 cc76b8c9204bf024…

MALICIOUS

PDF

35.5 KB Authoring application: PDF Studio
MD5: 97c030d08fecfef339280c717373cc81 SHA-1: 1383e22e44822774ffbda6b80f8b79f4a95d72cc SHA-256: cc76b8c9204bf0248216b365d492a345cbcc11742aab5358f85769276d3c3349
128 Risk Score

Malware Insights

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

The PDF file contains a mass of external links to other PDF documents, a technique often used for SEO manipulation or to host phishing content. ClamAV detected this file as 'Pdf.Phishing.TtraffRobotInstall-7605656-0', indicating a phishing or traffic redirection purpose. The document body, though heavily obfuscated, also contains several of these external URLs.

Heuristics 4

  • 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
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://wildernessimperative.org.uk/uploads/1/3/0/6/130639153/ffccd177604.pdf
    • http://northbrisbanemortgagebrokers.com.au/uploads/1/3/0/5/130551094/pokokeravalog_ginuponenusum.pdf
    • http://amityschuyler.com/uploads/1/3/0/7/130738798/vapog.pdf
    • http://jusdesock.com/uploads/1/3/0/2/130288932/nokuz_fejujupite_pewafarifa_liwimazupopeve.pdf
    • http://nancyyenshipleymd.com/uploads/1/3/0/4/130476410/lagizujedazenov.pdf
    • http://mrmcwheely.net/uploads/1/3/0/7/130775192/paxajebonutezu.pdf
    • http://capscoating.com/uploads/1/3/0/7/130740025/9e482264f947ab6.pdf
    • http://beeclubsales.net/uploads/1/3/0/2/130289655/130289655.html#block+panchayat+secretary+2018+question+paper+pdf

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000011f5.bin
98e0b6bbd7faeeb5f0642ac332dde776073da306a1b07f2eebe224f261b4c172		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11F5 8116 bytes

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