Malicious PDF — malware analysis report

Static analysis result for SHA-256 aa8df91167a36f9d…

MALICIOUS

PDF

40.3 KB Authoring application: ImageMagick
MD5: 0db3c5153e9a93df21a9a4693f7b24ac SHA-1: c78f5add9fe67b037f6498930e5218afa10a4bb4 SHA-256: aa8df91167a36f9ddaa73e572821a2779cf75c02267e2462ca29e1529cafef03
152 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links to external PDF files hosted on various domains. This behavior is indicative of a link farm or a phishing lure designed to direct users to potentially malicious content. The ClamAV detection and ML classifier strongly support a malicious classification.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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://myjoepeezywear.com/uploads/1/3/0/5/130588187/6761639.pdf
    • http://aufgutdeutsch.net/uploads/1/3/0/6/130621353/zitewimopuku-nurasofidawe-mezepuges.pdf
    • http://bartsbullets.com/uploads/1/3/0/3/130323889/rodozako_pozepubewe_mijazu_soser.pdf
    • http://myzticisle.net/uploads/1/3/0/2/130272482/6107630.pdf
    • http://almosteverything6dollars.com/uploads/1/3/0/2/130291434/vafisewe.pdf
    • http://najlogo.co.uk/uploads/1/3/0/4/130436441/1073908.pdf
    • http://aninhastore.com/uploads/1/3/0/5/130539642/getanilofumalag.pdf
    • http://baobabtreestudio.net/uploads/1/3/0/7/130739037/650009.pdf
    • http://mike4congress.com/uploads/1/3/0/6/130621388/denitebitusiru_fufizomigexi_jinebifixexi.pdf
    • http://mochisprite.com/uploads/1/3/0/3/130379363/130379363.html#libro+viaje+a+la+semilla+pdf

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000012d5.bin
e5ae546ec125153f41ec1d05d2c95ac1c41c96b8854811dfa3e5e059a62a67b5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x12D5 9920 bytes

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