Malicious PDF — malware analysis report

Static analysis result for SHA-256 2ebc6998b270cb7c…

MALICIOUS

PDF

38.5 KB Authoring application: OpenOffice Draw
MD5: 113b26065a818a06b7364dc469300f7d SHA-1: 416d8ef961163f98dc72bb11a9ace2d2f8f7e995 SHA-256: 2ebc6998b270cb7cc893333e08ada140bcb357b0baeebee3df283fa691a5c72d
150 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links to external PDF documents hosted on various domains. This behavior is indicative of a link farm, often used for SEO spam or to direct users to malicious content. The ClamAV detection and ML classifier further support its malicious nature, specifically flagging it as phishing-related. The document body itself contains garbled text mixed with a seemingly benign topic about rosemary oil for hair, which likely serves as a lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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 https://bivutijeluramu.weebly.com/uploads/1/3/0/2/130288479/geleziwozumumage.pdf
    • http://menusie.com/uploads/1/3/0/4/130490808/pulamed.pdf
    • http://nitrotvtrial.com/uploads/1/3/0/6/130639258/lerisubem-gisunaxeroja.pdf
    • http://127onyork.com/uploads/1/3/0/6/130620542/807533.pdf
    • http://nadinelambert.com/uploads/1/3/0/5/130588678/b213f051.pdf
    • http://muslimsjobs.com/uploads/1/3/0/6/130604618/9cac63a5a2c62.pdf
    • http://thecorporatecounselor.com/uploads/1/3/0/6/130621089/8682496.pdf
    • http://touchmile.com/uploads/1/3/0/5/130589334/130589334.html#como+aplicar+el+aceite+de+romero+al+cabello

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001142.bin
d38e075c3b17f34d008db7a419193c0a6aa28f68b87b8b93bbfb0a7d6604f075		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1142 8456 bytes

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