Malicious PDF — malware analysis report

Static analysis result for SHA-256 942235782450f288…

MALICIOUS

PDF

40.0 KB Authoring application: Pdftk
MD5: 079c00bcf770c708fddd02c38576bded SHA-1: 1f74014ea0eb736028a82f7a726734603e6433c5 SHA-256: 942235782450f28869f0f18fb9e3f21bf94b9077e5d20dc208451e7020601e51
150 Risk Score

Malware Insights

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

This PDF file was flagged by multiple heuristics, including a critical ClamAV detection for 'Pdf.Phishing.TtraffRobotInstall-7605656-0' and a PDF link farm detection. The document body contains numerous embedded URLs, suggesting a phishing or SEO spam campaign. The primary goal appears to be redirecting users to external sites through a link farm, potentially for malicious purposes.

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://internationalonlinehomeschool.org/uploads/1/3/0/5/130590235/5727854.pdf
    • http://nicole-pellegrino.com/uploads/1/3/0/5/130590558/b732d2639.pdf
    • http://myrottweiler.org/uploads/1/3/0/4/130476351/4fa2fab361e5.pdf
    • https://daxapixon.weebly.com/uploads/1/3/0/6/130604354/fitag_rofaduzexokajo.pdf
    • http://mselisewrites.com/uploads/1/3/0/5/130550982/nukezenonajeb_gusuzebap.pdf
    • http://timmahekdds.com/uploads/1/3/0/6/130639212/bokuxeregab_texofabukigoga_miwujelekid_dunibexofibixos.pdf
    • http://midwestmusclebullyclub.com/uploads/1/3/0/6/130603690/firezaxela_vozipixopabu.pdf
    • http://veronicaasorey.com/uploads/2020/01/27/9954245.pdf
    • http://shardexplorers.com/uploads/1/3/0/5/130551279/130551279.html#ghana+mali+songhai+venn+diagram+answers

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001393.bin
f788995f5fbc8b7f9cc6e291351a7c01566cae82c1678977d481b902f097453c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1393 7660 bytes
font_01_sfnt_off000055db.bin
779aa567746046747dac965df7fdfb06ff632674a0a99ce247a327bf89f0fa63		 pdf-font-stream PDF embedded font (sfnt) at offset 0x55DB 16036 bytes

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