Malicious PDF — malware analysis report

Static analysis result for SHA-256 348d829cdf13ab6b…

MALICIOUS

PDF

58.0 KB Authoring application: pdf-parser
MD5: 93451b664f6727fb3a3417220ff78a32 SHA-1: 57654a7faf2266b757953865dfdc215f6f93cb21 SHA-256: 348d829cdf13ab6b8f48ef55c5efd4718ac9619657236a36a50f30075e5ac217
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded external links, as indicated by the PDF_SEO_LINK_FARM heuristic. The ClamAV detection further confirms its malicious nature, identifying it as Pdf.Phishing.TtraffRobotInstall. The embedded URLs suggest a phishing or malware distribution attempt, likely aiming to redirect users to malicious sites. 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://mshipco.com/uploads/1/3/0/6/130622103/8926283.pdf
    • https://vemibido.weebly.com/uploads/1/3/0/4/130476616/05b3d9ac.pdf
    • http://pozdravlyay.com/uploads/2020/01/28/afc219dbe.pdf
    • http://alexjanderson.com/uploads/1/3/0/7/130739131/130739131.html#adiye+alage+mp3+song+download

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00000f89.bin
d153ac73b2b7f5ced44148fc7656dfa20b473b7dac6e7d39f96a568d2b6820f3		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF89 8112 bytes
font_01_sfnt_off00006002.bin
9351c32189193e7f1b299f5b5b0982f77395156f6bff5945ea191c92386762a8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6002 23592 bytes
font_02_sfnt_off00009db0.bin
1051eff92f3107855fe9fffd63a677fa199e8a2b6e61c4625445a05471f744b8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9DB0 16076 bytes

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