Malicious PDF — malware analysis report

Static analysis result for SHA-256 22ccae53bdf7bf33…

MALICIOUS

PDF

68.7 KB Authoring application: Smallpdf Desktop
MD5: 92614b8106f2138ef7280c0b88f89fe8 SHA-1: 726b4f30a0fe2b139405ca8024922138407287d7 SHA-256: 22ccae53bdf7bf3312a9b8bc4e7a70ce80aa92234219a844bb3be7c2debeb51c
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic. This suggests a phishing or SEO manipulation tactic, aiming to drive traffic to potentially malicious or compromised sites. The ClamAV detection as Pdf.Phishing.TtraffRobotInstall-7605656-0 further supports a phishing intent. 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://carolinadancecollaborative.com/uploads/1/3/0/3/130313494/6812336.pdf
    • http://nevadacoalition.net/uploads/1/3/0/2/130270932/banifuz.pdf
    • http://ithamarenriquez.com/uploads/1/3/0/5/130545957/50de00705a85.pdf
    • http://adielgrace.com/uploads/1/3/0/6/130639203/4b8ec5c08c.pdf
    • http://radikosoft.com/uploads/1/3/0/2/130271023/49b0e5b6b9.pdf
    • http://rialtofood.com/uploads/1/3/0/2/130291390/4513184.pdf
    • http://diamondlgoats.net/uploads/1/3/0/6/130604127/xejaliveluselo-wupinosolegor.pdf
    • http://uberscrudu.com/uploads/1/3/0/5/130588320/3274360.pdf
    • http://rehphotography.org/uploads/1/3/0/5/130590710/130590710.html#walkthrough+zelda+ocarina+of+time+forest+temple

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000128f.bin
fba034ce127e3fcff6966f51443e60a92af622b611f8d5cfc6061f2b36aa8bfc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x128F 9016 bytes
font_01_sfnt_off0000d395.bin
7863b829de04ea8b7f5be4d5dae43fa62182e7611f0c3a300d10b316d27db496		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD395 2732 bytes

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