Malicious PDF — malware analysis report

Static analysis result for SHA-256 59d33d3b90ed6576…

MALICIOUS

PDF

32.9 KB Authoring application: Nitro PDF
MD5: 5c02a4af4e9c25d6f8f70e78145307c1 SHA-1: 606fd3e18578cdf5106f667d07dc3198a0ccabb6 SHA-256: 59d33d3b90ed657601ff4e83533cea66ac2fbd4727607b9621ad99d211cea405
120 Risk Score

Malware Insights

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

The PDF file was detected by ClamAV as 'Pdf.Phishing.TtraffRobotInstall-7605656-0', indicating a phishing or traffic redirection purpose. The heuristic 'PDF_SEO_LINK_FARM' confirms the presence of numerous external links, suggesting an attempt to manipulate search engine results or redirect users to malicious content. The embedded URLs are the primary IOCs, likely leading to further stages of infection or phishing pages.

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://democraticabsentee.com/uploads/1/3/0/2/130271077/lofojod.pdf
    • http://cachedistrictliteracy.org/uploads/1/3/0/3/130324248/728941169deb.pdf
    • http://palmsrealty.org/uploads/1/3/0/2/130272644/tofuxesup.pdf
    • http://michelleislivingwell.com/uploads/1/3/0/5/130539897/6711377.pdf
    • http://pakpashtoon.com/uploads/1/3/0/4/130479123/8482044.pdf
    • http://paghosts.com/uploads/1/3/0/2/130289246/8831398.pdf
    • http://mikewoodhead.com/uploads/1/3/0/6/130620401/764825.pdf
    • http://juliejesternewman.com/uploads/1/3/0/6/130621354/130621354.html#situaciones+didacticas+de+navidad+para+preescolar+pdf

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001147.bin
ffb8abf13c11f2600897b8ee4c746c5e3b19badb1f7fc89867a9670b821d9dd4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1147 9256 bytes

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