Malicious PDF — malware analysis report

Static analysis result for SHA-256 9669f60b79d8dfde…

MALICIOUS

PDF

52.4 KB Authoring application: LibreOffice Draw
MD5: b098adddeb05a19d3793e71fe8da123b SHA-1: a10f1b1210f07699121c2e264fe75be915565caa SHA-256: 9669f60b79d8dfdec46661eaea7a9655b34ef66a3294f7783043f47ca45d504a
150 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links to external websites, a technique often used for SEO poisoning or phishing. The document body mentions the 'Russia world cup 2018 all team squad', suggesting a lure to attract users to click on these links. ClamAV identified this as Pdf.Phishing.TtraffRobotInstall-7605656-0, indicating a phishing or traffic redirection campaign.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://funlearningvillage.com/uploads/1/3/0/6/130604602/6085715.pdf
    • http://dtnore.xyz/uploads/2020/01/28/venivujeke.pdf
    • http://blairkhartman.com/uploads/1/3/0/4/130488345/zigugerodozefu.pdf
    • http://dcepool.org/uploads/1/3/0/3/130379447/5537823.pdf
    • http://policetrailer.com/uploads/1/3/0/7/130776791/130776791.html#russia+world+cup+2018+all+team+squad

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001062.bin
61297c480caa3fe6a3d248e7a44de8cbbd95a02416e11f35b4272dd8fbb9383d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1062 9092 bytes
font_01_sfnt_off00008efa.bin
6ebb8842ee706562ce09e0afcec88ce9236692024d308a321d3ea0e12b9f58b1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8EFA 3220 bytes

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