Malicious PDF — malware analysis report

Static analysis result for SHA-256 4557fbfd86d67806…

MALICIOUS

PDF

38.9 KB Authoring application: Poppler-utils
MD5: 61f3905ac8846c9ff2a98882e921d992 SHA-1: d699f1b7c914e1625a6a06f053e7a2eb76030b07 SHA-256: 4557fbfd86d6780671c1f41e3346cc86559ab5a6f86ee408c40cf0e3282ede4d
120 Risk Score

Malware Insights

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

The PDF contains a large number of external links, as indicated by the PDF_SEO_LINK_FARM heuristic. The ClamAV detection of Pdf.Phishing.TtraffRobotInstall-7605656-0 further supports a phishing or malicious redirection intent. The embedded URLs point to domains commonly used for distributing malicious content. 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://adwords-campagnes.com/uploads/2020/01/27/rusosekubotavagefawa.pdf
    • http://getmedeal.com/uploads/1/3/0/6/130621781/bepitigaw.pdf
    • http://usamwv.com/uploads/1/3/0/5/130540874/nurugujilabexafuku.pdf
    • http://cruisecatline.com/uploads/1/3/0/6/130621197/1bb539a7a.pdf
    • http://colddiamnd.com/uploads/1/3/0/7/130740323/130740323.html#abstract+class+implements+generic+interface

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001058.bin
9f64bc16ea93eef50754f521eb770aa014c0b5034bdcd3bfa2fd95463dc75a30		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1058 8408 bytes

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