Malicious PDF — malware analysis report

Static analysis result for SHA-256 e6867b2569e3f9a4…

MALICIOUS

PDF

40.1 KB Authoring application: Solid Converter PDF
MD5: 184dd2bfbbba36877061b0686025e863 SHA-1: a5535221b69803b4ba1b29444777d2413730f8ec SHA-256: e6867b2569e3f9a4dd1e8a8e55d24b6503b1cbdf4421a21640f092802dd2b5b2
150 Risk Score

Malware Insights

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

The PDF contains a large number of embedded URLs pointing to other PDF files, a technique often used for SEO poisoning or distributing malicious content. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' and the ML classifier output strongly indicate malicious intent. The document body itself appears to be corrupted or contains irrelevant text, but the presence of numerous external links is the primary indicator of malicious activity.

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://tabernacleoffaithbaptistchurch.com/uploads/1/3/0/6/130639331/71062fe2d3452ae.pdf
    • http://storgebhs.com/uploads/1/3/0/3/130379219/11bcaf4a254342.pdf
    • http://gafikam.chasolink.online/uploads/2020/01/28/sogobesokuga.pdf
    • http://kcfearfarm.net/uploads/1/3/0/3/130323659/5897045.pdf
    • http://verifiedoverviws.com/uploads/1/3/0/5/130551772/5465749.pdf
    • http://almostasecondgrader.com/uploads/1/3/0/5/130550782/0f2175.pdf
    • http://sonyakrakoff.com/uploads/1/3/0/6/130620672/dubolivubazute.pdf
    • http://visionbystin.com/uploads/1/3/0/2/130270813/takeboxisaxifisurosa.pdf
    • http://darkskyislands.net/uploads/1/3/0/7/130739221/3787631676f.pdf
    • http://shareyourcgdstory.com/uploads/1/3/0/4/130476298/665effb07.pdf
    • http://stokesed508webpage.com/uploads/1/3/0/7/130775680/130775680.html#the+answer+kodaline+lyrics+meaning

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000012c5.bin
e086f56c0fdae27987440387020f6168a578f5e0b11bfd2f67021d9ac91b51a8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x12C5 8828 bytes

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