Malicious PDF — malware analysis report

Static analysis result for SHA-256 9667afb4cb7a01ac…

MALICIOUS

PDF

39.0 KB Authoring application: Serif PagePlus
MD5: ae0031ea0228541daefaf716d5b612a4 SHA-1: 7d1035bb5bd51629c859a1ef7d19994771cffcfb SHA-256: 9667afb4cb7a01ac2cbb16229332aafb715f4cf79338734910266820b90e13ee
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 URLs pointing to other PDF files, a technique often used for SEO manipulation or to distribute malicious content. The ClamAV detection and ML classifier strongly indicate malicious intent. No scripts were extracted, and the document body content is largely unreadable, but the heuristic firings are sufficient to assess the attack pattern.

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://www.topbirdsall.com/uploads/1/3/0/5/130546574/gosiguripo.pdf
    • http://ieready.com/uploads/1/3/0/2/130289695/pikova.pdf
    • http://dreamfarmeracademy.com/uploads/1/3/0/5/130545884/novovutejeroki_loxijeme_bebir_filolov.pdf
    • http://kireilifetherapy.com/uploads/1/3/0/8/130814238/9632053.pdf
    • http://nicole-bramble-illustration.com/uploads/1/3/0/4/130483799/bejemov-davakob-dikofubogona.pdf
    • http://plumislandweavingco.com/uploads/1/3/0/6/130604244/mapegutilazof.pdf
    • http://yourpackaging.design/uploads/1/3/0/3/130313718/jexuponerike-bagubekiwu-tedudokufedexod.pdf
    • http://traderhsm.com/uploads/1/3/0/6/130605493/lefunemazabewumumi.pdf
    • http://mlmmarketinglab.com/uploads/1/3/0/2/130272092/zutiwotetidupune.pdf
    • http://pathwaysenrichmentacademy.com/uploads/1/3/0/5/130543772/lutelitewu_rerafexarij_titoresodus_kepapolagurem.pdf
    • http://mary8078.com/uploads/1/3/0/2/130271051/8b9e81d5d28f.pdf
    • http://aprilfricke.com/uploads/1/3/0/7/130738753/edc92f25.pdf
    • http://rhsimb.org/uploads/1/3/0/5/130551962/tokexaziju_fejoko_zonilamaregono.pdf
    • http://kitsaphomes.com/uploads/1/3/0/2/130270893/7a013f007b89ec7.pdf
    • http://cretanmaliaredesign.devsite-1.com/uploads/1/3/0/2/130272513/130272513.html#astrosage+kundli+apk+free+download
    • http://traderhsm.com/u

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003d92.bin
4e8c3955c4afef528881d3d4c6ac4a65e6b5b7abfaa014f2d4ee9346a728233c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3D92 8168 bytes

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