Malicious PDF — malware analysis report

Static analysis result for SHA-256 46662f1dc7e34f88…

MALICIOUS

PDF

48.1 KB Authoring application: PDFBox
MD5: fa16b670a67e44dec7aee838bd101460 SHA-1: d979fb4a28ca09c34c457a89b0a7c2f21b1f3f5a SHA-256: 46662f1dc7e34f88e4414b8e7d7c52295b286e7f9156a29e5198c71bc7968c67
150 Risk Score

Malware Insights

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

The PDF file exhibits characteristics of a link farm, with numerous embedded URLs pointing to external PDF documents. This technique is commonly used for SEO poisoning or to distribute malicious content. The ClamAV detection as 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports a malicious intent, likely related to phishing or traffic redirection. No scripts were extracted from this sample.

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 http://feliciamings.com/uploads/1/3/0/5/130539408/xivep.pdf
    • http://zasidodad.helo-zoom.com/uploads/2020/01/29/vuxonixuzomunuzus.pdf
    • http://versatilestyle.com/uploads/1/3/0/7/130738576/3539215.pdf
    • http://corazondemujer.net/uploads/1/3/0/3/130379651/rineguxobedoresu.pdf
    • http://retreatsinjapan.com/uploads/1/3/0/7/130739732/tibubel-fuxinuje-juwatexefokiji-tevidem.pdf
    • http://nicoleedwardslimited.com/uploads/1/3/0/5/130540869/5b58082441.pdf
    • http://withgrandmabarbara.com/uploads/1/3/0/5/130550817/4c2fd382.pdf
    • http://0to100.ca/uploads/1/3/0/3/130323774/8058212.pdf
    • http://nolababybump.com/uploads/1/3/0/3/130323624/e351adc477b.pdf
    • http://patriciabondrn.com/uploads/1/3/0/5/130588870/niwegogetub_zetunes.pdf
    • http://ghettomaderecords.com/uploads/1/3/0/4/130478210/8c21769d4.pdf
    • http://sol.paulcotyantiques.com/uploads/2020/01/28/rotis_nakane_fawikikopi.pdf
    • http://misssoutheastpageantry.us/uploads/1/3/0/6/130620942/130620942.html#kedileri+d%C4%B1%C5%9F+mekan+mobilyalar%C4%B1mdan+n

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000015c7.bin
7b36db80c80bc148d948753f3e3b3437b1d447ff929938ca6803280ebc32ff7c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x15C7 10184 bytes

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