Malicious PDF — malware analysis report

Static analysis result for SHA-256 eee556a10c01b9cc…

MALICIOUS

PDF

35.0 KB Authoring application: PDF Studio
MD5: de17e8a23af3e45aff69d588a425af8b SHA-1: cbffccb45576b19cd07cc3e20491b9f92d8f761b SHA-256: eee556a10c01b9cc9da8be70aed4052f6767213ecf649e67b8507939e5bf5f8b
150 Risk Score

Malware Insights

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

The PDF document contains a large number of embedded URLs pointing to other PDF files, a technique often used for SEO manipulation or to distribute malicious payloads. The ClamAV detection and ML classifier strongly indicate malicious intent. The primary attack pattern involves luring users to click on these links, which likely lead to further malicious content or phishing attempts.

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://museandreign.com/uploads/1/3/0/6/130639913/1468937.pdf
    • http://mysmilepaparazzi.com/uploads/1/3/0/7/130739830/93e949006.pdf
    • http://explainerkit.com/uploads/1/3/0/5/130539795/fe11d6d12.pdf
    • http://michaelmaguire.com.au/uploads/1/3/0/5/130540788/pemibowekavon_foduxafiza.pdf
    • http://saritelpner.com/uploads/1/3/0/4/130477249/6270457.pdf
    • http://orthogistic.com/uploads/1/3/0/3/130323178/fopukotaso-kenujewavoxesan-pakaz.pdf
    • http://nursinghomelawyeradvice.com/uploads/1/3/0/6/130605292/aa85285a25036.pdf
    • http://www.bisp.org.uk/uploads/1/3/0/2/130287246/xibutadarote-dositagunamakal-fexilojebukorew.pdf
    • http://tppg.co.uk/uploads/1/3/0/4/130483373/pejaluzumupaxeguxus.pdf
    • http://digitalfreebies.net/uploads/1/3/0/2/130289498/bibedupefo.pdf
    • http://hyegeun.net/uploads/1/3/0/5/130551287/wezabupu.pdf
    • http://smithscateringholbrook.com/uploads/1/3/0/6/130621383/mawoxebaf.pdf
    • http://www.vayonnaise.com/uploads/1/3/0/5/130590215/4f700e30d.pdf
    • http://wrfabc.ca/uploads/1/3/0/4/130489763/6311097.pdf
    • http://orrerysystems.com/uploads/1/3/0/4/130483540/roxaroxaz.pdf
    • http://71-159-221-58.overtimefitness.com/uploads/1/3/0/4/130476678/130476678.html#super+trooper+song+mamma+mia+2

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002db8.bin
df12058902827d921d4e30af2ae023407f822cbe081cbd644d34b6d46c4baba8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2DB8 7880 bytes

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