Malicious PDF — malware analysis report

Static analysis result for SHA-256 f508b000aab6514a…

MALICIOUS

PDF

38.4 KB Authoring application: pdf-parser
MD5: 2be86eb32e7d246d65ccdd201940a9d9 SHA-1: 96c9d69de697eec7ac061490a09ea3cb9584d893 SHA-256: f508b000aab6514aa3368a267f702af49dbbcecaae3daf41daa5fbc140ca3b7f
130 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links to other PDF files, a technique often used for SEO poisoning or to distribute malicious content. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' strongly suggests a phishing or traffic redirection campaign. The presence of a visual download button further supports the lure-based attack pattern.

Heuristics 4

  • 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
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://daquarius.org/uploads/1/3/0/5/130544725/medavub.pdf
    • https://xagewezosoni.weebly.com/uploads/1/3/0/4/130435877/bfc11499.pdf
    • http://nesyb.net/uploads/1/3/0/2/130289409/xagefuzumi-femokafir-gokoforurusit-buwewive.pdf
    • http://sponsorforhire.com/uploads/1/3/0/3/130323161/tatixetesipijas_zopabukalitawus_xipeludirige_tudisatemi.pdf
    • http://lozu.remont-info.com/uploads/2020/01/27/5707924.pdf
    • https://soxesexurin.weebly.com/uploads/1/3/0/2/130292089/9667881.pdf
    • http://gax.klopus.ru/uploads/2020/01/28/sekuxonexove-jexelefuvab.pdf
    • http://torijajobu.myalbumsexy.com/uploads/2020/01/28/6680249.pdf
    • http://paddleboardz.com/uploads/1/3/0/3/130323479/23209d1.pdf
    • http://vickiesworld.com/uploads/1/3/0/4/130436089/689444cba.pdf
    • http://xidivegat.best-prices.icu/uploads/2020/01/27/bevokif-tipebev-gofeweperen-tofebexadowaz.pdf
    • http://walnutstreetcoc.com/uploads/1/3/0/4/130489410/aaa6d562.pdf
    • http://djspizza1.com/uploads/1/3/0/5/130541073/130541073.html#lab+12+evidences+of+evolution+answer+key

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000013e6.bin
5227b16a46779c1b8b07782eb813fdfca1ad26e1cc103365deaaee9b23c8d715		 pdf-font-stream PDF embedded font (sfnt) at offset 0x13E6 9224 bytes

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