Malicious PDF — malware analysis report

Static analysis result for SHA-256 a16d72edbfe12938…

MALICIOUS

PDF

36.5 KB Authoring application: Pdftk
MD5: 8c7732fdea69a5ef879e3d90feb62536 SHA-1: 346ed1eb977671e37a5f0e6d2306de732d6ac244 SHA-256: a16d72edbfe129388156bbd342c89da7b8ff0d588056e93a50b9212e4eaf3a5b
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF document contains a large number of embedded URLs pointing to external PDF files, a technique often used for SEO manipulation or to host phishing content. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports a phishing or malicious intent. The document body itself is heavily obfuscated and contains fragmented text, making its specific purpose difficult to ascertain beyond the general lure provided by the embedded URLs.

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://lumaeretreats.com/uploads/1/3/0/5/130551095/5886578.pdf
    • http://michelledburks.com/uploads/1/3/0/4/130488412/tuxeviro.pdf
    • http://www.roguewanderer.com/uploads/1/3/0/6/130620736/pepamidutusuvazewo.pdf
    • http://sloaneswayze.com/uploads/1/3/0/5/130545753/lexum-vodab.pdf
    • http://lightningsoccerclub.org/uploads/1/3/0/4/130483550/jorigaxejolep-werazu.pdf
    • http://looe-festival-of-the-sea.com/uploads/1/3/0/6/130639764/bosokulu.pdf
    • http://sadmommylife.com/uploads/1/3/0/4/130488619/sadibovu-vaguwotepit.pdf
    • http://atlasthemighty.com/uploads/1/3/0/6/130604521/3562281.pdf
    • http://caylahwestphotography.com/uploads/1/3/0/2/130287845/baperuw.pdf
    • http://neverdonefiberfarms.com/uploads/1/3/0/6/130621071/musevopuzufi-lipanamajif-jajirofek-wetipatinejopem.pdf
    • http://mondokdentalimplantsmexico.com/uploads/1/3/0/5/130588997/7638967.pdf
    • http://timdonovannow.com/uploads/1/3/0/6/130605289/kikodopipogeb_rogejukuvil.pdf
    • http://jomapesconsulting.net/uploads/1/3/0/3/130379356/napiwilodonu.pdf
    • http://gclub.lucky1st.com/uploads/1/3/0/4/130476866/130476866.html#aoe+2+beginner+build+order

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000036aa.bin
f16df48adcf6cde507d3066581df426110b421a29ad87cc1d44340668d0d9338		 pdf-font-stream PDF embedded font (sfnt) at offset 0x36AA 7576 bytes

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