Malicious PDF — malware analysis report

Static analysis result for SHA-256 765e012e7a0e402c…

MALICIOUS

PDF

33.1 KB Authoring application: ImageMagick
MD5: 78dd683618bf60658a6c73b9892089b7 SHA-1: 91bcb015d3ca2dd1e4ab69b81523e7f3c3e06ecf SHA-256: 765e012e7a0e402ce15f9a932b1c87d87208d9c861ab9f1afd6ea9066db8eb2f
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded external links, a technique commonly used in phishing or SEO spam campaigns to direct users to malicious websites. The ClamAV detection and ML classifier strongly indicate malicious intent, likely related to phishing or malware distribution. No scripts were extracted, but the presence of numerous external links suggests a watering hole or phishing attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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://beeidentification.com/uploads/1/3/0/5/130589345/c49ecf23ab6.pdf
    • http://tbndesigns.com/uploads/1/3/0/3/130313786/be60a0cc7a1.pdf
    • http://streetbrunch.com/uploads/1/3/0/3/130313619/donekiwanin.pdf
    • http://streetbrunch.com/uploads/1/3/0/3/130312965/f533e98fb.pdf
    • http://lesetoiles-paris.com/uploads/1/3/0/6/130639931/bebfd2c.pdf
    • https://xutolukomitedes.weebly.com/uploads/1/3/0/4/130475981/a738ac.pdf
    • http://insurequoterelief.com/uploads/1/3/0/3/130313388/316c3086d.pdf
    • http://bldngts.com/uploads/1/3/0/5/130545396/8598098.pdf
    • http://storybrooke.club/uploads/1/3/0/4/130483507/7214546.pdf
    • http://dbbcso.org/uploads/1/3/0/7/130739076/c6da8c96b.pdf
    • http://legalinformatics.net/uploads/1/3/0/2/130272242/rojigegox.pdf
    • http://nmr-stockholm.com/uploads/1/3/0/6/130604793/kamadosox_xonoxoluzupijip_kirejaviwoz.pdf
    • http://ankezimmermann.ca/uploads/1/3/0/6/130639157/130639157.html#distillation+column+ppt+presentation

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000012d3.bin
27b5cd7e7583c2beaad0c6bcaf676ffe763972ae1ab15092d927c4eb8e91545c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x12D3 8056 bytes

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