Malicious PDF — malware analysis report

Static analysis result for SHA-256 d14eb04fb4ccbd8a…

MALICIOUS

PDF

38.7 KB Authoring application: PDFBox
MD5: dbcd3095092bc7475211eb11d982d605 SHA-1: b91bda662a43779415cdf13de5db1c6bd25753b0 SHA-256: d14eb04fb4ccbd8a3deca9e011e85915cc01de96da3b82a7619f29fb8dd9b23d
150 Risk Score

Malware Insights

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

The PDF document was flagged by ClamAV as Pdf.Phishing.TtraffRobotInstall-7605656-0 and a machine learning classifier. The critical heuristic PDF_SEO_LINK_FARM indicates the presence of a mass external PDF link farm, with the first URL being http://theemberscovenant.com/uploads/1/3/0/4/130476678/8121078.pdf. This suggests the document is designed to redirect users to multiple malicious sites, likely for 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://theemberscovenant.com/uploads/1/3/0/4/130476678/8121078.pdf
    • http://ladieslearnenglish.com/uploads/1/3/0/7/130739922/xujelirabove.pdf
    • http://hoardersnyc.com/uploads/1/3/0/5/130588943/wipiv_gaperifav_gufagim.pdf
    • http://nowmetoo.com/uploads/1/3/0/6/130621163/fakat-jixuzib-sixirigodet.pdf
    • http://www.originschiropractichousecalls.com/uploads/1/3/0/6/130639355/xeloxiwajo.pdf
    • http://spatialperspectives.com/uploads/1/3/0/2/130272940/wuzapabol_tifuz.pdf
    • http://3gatewaycenter.com/uploads/1/3/0/2/130270762/2619542.pdf
    • http://geigerair.com/uploads/1/3/0/6/130604102/lurisade.pdf
    • http://theodishthoughts.com/uploads/1/3/0/2/130289797/4433378.pdf
    • http://mm93.net/uploads/1/3/0/8/130813604/942579.pdf
    • http://host174.carmichaelnl.com/uploads/1/3/0/6/130640220/130640220.html#multiple+jpg+files+to+single+pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002fea.bin
608647b7300fe9af6d57d181bfc2b526c4ff127a0dc2616095acef430284931e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2FEA 4792 bytes
font_01_sfnt_off000041ba.bin
3b05a75639d44147ec90f857ff059f50792b4d605f793159cdbdc22bccff2dda		 pdf-font-stream PDF embedded font (sfnt) at offset 0x41BA 7756 bytes

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