Malicious PDF — malware analysis report

Static analysis result for SHA-256 c7e343953b9e6d8b…

MALICIOUS

PDF

41.6 KB Authoring application: pstoedit
MD5: 54a054b27504f77378066952fd705a2c SHA-1: 020b5cec8be172c5b589b74078c5df793adc57b2 SHA-256: c7e343953b9e6d8b8eb06073220d332510b64d5dc8ad925b9be35ff69eb6905d
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1566.002 Spearphishing Link

The PDF file was detected as malicious by ClamAV with the signature Pdf.Phishing.TtraffRobotInstall-7605656-0. Static analysis revealed a significant number of embedded URLs, indicating a link farm designed to redirect users. The heuristic PDF_SEO_LINK_FARM specifically flags this behavior, suggesting the document's primary purpose is to distribute malicious links. No scripts were extracted from this sample.

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://crablefoundation.org/uploads/1/3/0/6/130605346/ruxibozanobi_lugofo_dekufamek_lifiw.pdf
    • http://bitcoinersnow.com/uploads/1/3/0/4/130435987/7584158.pdf
    • http://striving4excellence.net/uploads/1/3/0/5/130589270/8489059.pdf
    • http://cancelatimesharenow.com/uploads/1/3/0/2/130289344/7a8a13a344c.pdf
    • http://myrocketflow.com/uploads/1/3/0/5/130551967/dusotor-wisipivopajub-fiwarozorusogek-wokil.pdf
    • http://thedownsideofbliss.com/uploads/1/3/0/5/130544243/4079300.pdf
    • http://mythermaltv.com/uploads/1/3/0/5/130589208/130589208.html#how+to+reduce+size+of+pdf+adobe+reader+dc

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001145.bin
5bc15521830b86c799a40700168ec44fbf1a020771b80b727e399046139e92e5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1145 8036 bytes

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