Malicious PDF — malware analysis report

Static analysis result for SHA-256 51756d547e9bc198…

MALICIOUS

PDF

28.5 KB Authoring application: Nitro PDF
MD5: 952ca9ffa54bb0bbc4116676548d1e23 SHA-1: ddeb27823b7e0c4f907c9d0f1e9d9b4fc7c24746 SHA-256: 51756d547e9bc198304c660b4cc2c78e51dc92ff4d023290bf67d68590f370ab
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, as indicated by the PDF_SEO_LINK_FARM heuristic. The ClamAV detection of Pdf.Phishing.TtraffRobotInstall-7605656-0 further supports a phishing or malicious redirection intent. The embedded URLs are likely used to direct users to malicious websites for credential harvesting or malware delivery.

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://onewisdomzen.ca/uploads/1/3/0/6/130604196/4302885.pdf
    • http://experienceflavour.com/uploads/1/3/0/7/130776123/924c14.pdf
    • http://www.mayamontoya.com/uploads/1/3/0/7/130775971/8e32013a.pdf
    • http://mquest.space/uploads/1/3/0/5/130589205/xovezebegibas_xabuvoxuvib_kasitevi.pdf
    • http://thehappyhedon.com/uploads/1/3/0/7/130775778/d8383b95ee.pdf
    • http://clientretentionsuccess.com/uploads/1/3/0/2/130287302/3278a9e.pdf
    • http://www.dreamersandleaders.com/uploads/1/3/0/3/130323172/pivufiwoluxojutadosa.pdf
    • http://masterscookware.com/uploads/1/3/0/5/130541661/fa5f40b07338cad.pdf
    • http://milanchurch.com/uploads/1/3/0/2/130289569/kepukisaxoxepaxi.pdf
    • http://marsuland.com/uploads/1/3/0/6/130621418/4462869ec3b.pdf
    • http://sarasbellur.com/uploads/1/3/0/8/130874396/wexiduwame_mivipepazof_wivis_tebaruju.pdf
    • http://storytrainingonline.com/uploads/1/3/0/8/130874284/mosumasolegobe_mifoz_wolajevatasuk_jivatukatuso.pdf
    • http://saintmagnolianola.com/uploads/1/3/0/9/130969212/659b03a2.pdf
    • http://biojojiks.com/uploads/1/3/0/5/130551559/nokonelamu.pdf
    • http://sexualgames.org/uploads/1/3/0/4/130483514/1451232.pdf
    • http://ewaveinc.com/uploads/1/3/0/3/130379311/130379311.html#a+whole+new+world+lyrics+duet+karaoke

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000017e0.bin
a6aad1dae9da84c9186075e7cc8a5f4def79a131654482601692c88e2b82319a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x17E0 6572 bytes

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