Malicious PDF — malware analysis report

Static analysis result for SHA-256 3adf9478851b88f7…

MALICIOUS

PDF

35.7 KB Authoring application: pstoedit
MD5: d8531b0494973d35bda285843256e329 SHA-1: 1f5aabf2f0f7eab84b724fc04b1b33a0330df361 SHA-256: 3adf9478851b88f7a86658cc597922684866f4d4e5c7c8e5027bda9a377c02fc
150 Risk Score

Malware Insights

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

The PDF was flagged by multiple heuristics, including a critical finding for a PDF link farm containing 30 external links. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' and the ML classifier output strongly indicate malicious intent. The embedded URLs are likely used to redirect users to phishing sites or download further malware. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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://pixbymitch.com/uploads/1/3/0/6/130639895/fafakeketibi.pdf
    • http://seodublin.org/uploads/1/3/0/6/130621483/xasigum.pdf
    • http://needavac.com/uploads/1/3/0/7/130775358/jilunofo-xagatezi-xenavozuze.pdf
    • http://tinyscrolls.com/uploads/1/3/0/6/130620887/vovupobarupunolub.pdf
    • http://oliviawinter.net/uploads/1/3/0/5/130550912/b9f8a2bd1.pdf
    • http://collaborativeservice.com/uploads/1/3/0/6/130621709/1279387.pdf
    • http://rogersbellappleiphonereadreceiptssamsung.com/uploads/1/3/0/2/130272921/gifozitogogipitaj.pdf
    • http://bytesandjuice.com/uploads/1/3/0/4/130489297/f365da2a0.pdf
    • http://localzaa.com/uploads/1/3/0/7/130739892/6848615.pdf
    • http://1210photography.com/uploads/1/3/0/6/130621608/a2086f484760.pdf
    • http://omeganaturals.ca/uploads/1/3/0/3/130379611/55868.pdf
    • http://informativegenetics.com/uploads/1/3/0/2/130270955/wutozosaganav-piwega-keninili.pdf
    • http://nationalriskmanagementgroup.com/uploads/1/3/0/6/130639845/bd8f6b02ab93ecc.pdf
    • http://dreamdamselart.com/uploads/1/3/0/7/130738644/e8114412cb681e.pdf
    • http://tampadivorcehelp.com/uploads/1/3/0/7/130776082/rinuvuxaxurodo.pdf
    • http://www.rebeccawilsonauthor.com/uploads/1/3/0/7/130776249/130776249.html#active+voice+and+passive+voice+questions+and+answers

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000031bc.bin
100b21c0052ae5be1f7bbe62ec0e4f99c50b4fecd388e307e8de02d42d4daf53		 pdf-font-stream PDF embedded font (sfnt) at offset 0x31BC 7448 bytes

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