Malicious PDF — malware analysis report

Static analysis result for SHA-256 6a154cfe815a5836…

MALICIOUS

PDF

48.7 KB Authoring application: pdf-parser
MD5: f7e8d6b09bb457f84ff5535a58e9479d SHA-1: edc41030117f1564d4f93fd24329d49699baa834 SHA-256: 6a154cfe815a5836765fcb8a688eeb8a8fb5c7230cd8abed4026319bd41c55f9
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded links to other PDF files, a technique often used for SEO poisoning or to distribute malware. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' and the ML classifier output strongly indicate malicious intent, likely related to phishing or malware distribution.

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://dishingitupgame.net/uploads/1/3/0/3/130313489/xinexa.pdf
    • http://montbrae.com/uploads/1/3/0/6/130640020/toregum.pdf
    • http://betterworld.co.nz/uploads/1/3/0/3/130313766/begamakirew_wenawid_baroxazixo.pdf
    • http://sharegenki.com/uploads/1/3/0/5/130543070/6856563.pdf
    • http://onlineventures101.com/uploads/1/3/0/4/130436173/c597ac0.pdf
    • http://vhcministry.org/uploads/1/3/0/6/130605016/5572920.pdf
    • http://silvertonnaz.com/uploads/1/3/0/6/130604470/wulitu_wuwovufebiz_dajazajel.pdf
    • http://carpetcleancary.com/uploads/1/3/0/6/130620840/130620840.html#best+hikes+glacier+national+park+bc

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000114d.bin
02b5bcfc6c87b88d114d9a15d343c915cfa2d0ba07d974b3054d26b1789a4370		 pdf-font-stream PDF embedded font (sfnt) at offset 0x114D 8584 bytes

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