Malicious PDF — malware analysis report

Static analysis result for SHA-256 eb7d22ff538cb651…

MALICIOUS

PDF

46.2 KB Authoring application: OpenOffice.org
MD5: f2047cde126ad9114889ee0c02ab688d SHA-1: a961d2f885ab8ea1d45f3d006b696b1d59001bf8 SHA-256: eb7d22ff538cb651079c17db8a4990c54d9a1ac6e5438b91ddf41feaacdddb14
150 Risk Score

Malware Insights

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

The PDF contains a large number of external links to other PDF files hosted on various domains, a technique often used for SEO spam or to distribute malicious content. The ClamAV detection and ML classifier strongly indicate malicious intent. The embedded URLs are the primary indicators of compromise, suggesting a link farm designed to redirect users to potentially harmful content.

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://mrlob9000.net/uploads/1/3/0/6/130620956/06cede731.pdf
    • http://www.plastiformpackaging.com/uploads/1/3/0/8/130874434/fozinuvawajarotipaz.pdf
    • http://beamacademy.org/uploads/1/3/0/7/130739235/wimujamimuzud.pdf
    • http://jacksonholeskipackages.net/uploads/1/3/0/5/130588206/3d1432954b.pdf
    • http://themonster.online/uploads/1/3/0/3/130313198/jedoketiz_xebefotu.pdf
    • http://wanderboss.com/uploads/1/3/0/5/130539111/takazeme.pdf
    • http://ralphroyrealty.com/uploads/1/3/0/7/130739646/dd5dc30233.pdf
    • http://mfcocksart.com/uploads/1/3/0/6/130620795/vaxaxoz_raseduribuv.pdf
    • http://websiteamonth.com/uploads/1/3/0/8/130874430/nuromeniwe-vudogusexekiwo-bovakov-petediramozo.pdf
    • http://remote.chipsmfg.com/uploads/1/3/0/7/130776223/588bc667af.pdf
    • http://myrichardsonrealty.com/uploads/1/3/0/6/130604218/depujaf.pdf
    • http://tnconcealedcarry.com/uploads/1/3/0/5/130539691/pavajotuware-xoxerabul.pdf
    • http://2onrtn.bdgct.com/uploads/1/3/0/7/130739873/130739873.html#la+respiraci%C3%B3n+celular+aerobia+y+anaerobia

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003b35.bin
0ef1112e50e2a86488aadde4d8a477a3649c66578d8f2a84f2c6ad20bbddbbf8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3B35 2732 bytes
font_01_sfnt_off00004439.bin
779aa567746046747dac965df7fdfb06ff632674a0a99ce247a327bf89f0fa63		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4439 16036 bytes
font_02_sfnt_off00005b95.bin
458950418d6d12e1ce00811df40872a3787a44b75ac18604f19f834a8641d6c6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5B95 8788 bytes

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