Malicious PDF — malware analysis report

Static analysis result for SHA-256 41cd6e95cab0b88a…

MALICIOUS

PDF

49.1 KB Authoring application: Poppler-utils
MD5: 4983ddd5952edd1407d7163414ad9820 SHA-1: 311dda906270a6a05702b211b2a0e834656209b1 SHA-256: 41cd6e95cab0b88a7b405fd7dba522229ea50f2653511b678b0a1fd62205cdd7
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded external links, a technique often used for SEO manipulation or to redirect users to phishing or malware distribution sites. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports a phishing or traffic redirection intent. No scripts were extracted from this sample, limiting the analysis of direct payload execution.

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://collinsmslibrary.org/uploads/1/3/0/6/130640070/ruwulatew_dakebanus_pejaxarasiku.pdf
    • http://escaperoomcville.com/uploads/1/3/0/4/130479435/5939904.pdf
    • http://universalizability.com/uploads/1/3/0/5/130590047/8059187.pdf
    • http://sagadaview.com/uploads/1/3/0/5/130543552/jujovedipazoxo_kababojotode_welaxisiluma_tovivumak.pdf
    • http://carlocornelli.com/uploads/1/3/0/5/130588806/zuxazoze.pdf
    • http://heartbeats4peace.com/uploads/1/3/0/6/130603892/numidun.pdf
    • http://misssoutheastpageantry.us/uploads/1/3/0/6/130639899/pewomo.pdf
    • http://74-123-73-178.mgwnet.com/uploads/1/3/0/6/130604806/1974739.pdf
    • http://galvanizeent.com/uploads/1/3/0/6/130639269/d711e36fd0cce7a.pdf
    • http://proseandcommas.org/uploads/1/3/0/5/130545895/6764e2ca228d5.pdf
    • http://k0gyr.slpny.com/uploads/1/3/0/5/130539053/130539053.html#sf-36+physical+functioning+score

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005bfa.bin
e2f1373bf3d70a40ff4276a486f0a1d2d32154e4f45ad1243a44c3d3b7d91cea		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5BFA 2652 bytes
font_01_sfnt_off00006837.bin
fe609f96c3cae07fe940c8efb6e2f1e9a0e4ebd25d3dd213621a2a6a9b8ba237		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6837 8752 bytes

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