Malicious PDF — malware analysis report

Static analysis result for SHA-256 3006859df0049cd4…

MALICIOUS

PDF

33.3 KB Authoring application: GIMP
MD5: e90cbc0586b89735d8f0b1aac900e254 SHA-1: e61512319e806b82cf85b077eb1f7e5c9564efb1 SHA-256: 3006859df0049cd4c3ae518b47fb377d4fb4211d2374ee3ce902581371216661
152 Risk Score

Malware Insights

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

The PDF contains a large number of external links to other PDF files hosted on various domains, a technique often used for SEO spam or to distribute malicious content. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' and the ML classifier output strongly indicate malicious intent. The embedded URLs are the primary indicators of compromise.

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://whatyouwantcreations.com/uploads/1/3/0/2/130287971/nazapo.pdf
    • http://johnpadfieldmusic.com/uploads/1/3/0/6/130620865/fubabem.pdf
    • http://daniellesmakeupcreations.com/uploads/1/3/0/6/130640218/916062eb9cb.pdf
    • http://dudamariah.com/uploads/1/3/0/6/130605396/zojivu_vevod.pdf
    • http://providentialgardener.org/uploads/1/3/0/5/130551694/zilekaj-sigeloko.pdf
    • http://jwlsolutions.com/uploads/1/3/0/5/130543813/fepewisusefine.pdf
    • http://thesecrettohealthyliving.com/uploads/1/3/0/8/130813369/3205805.pdf
    • http://rocknaturally.com/uploads/1/3/0/2/130289652/71e5067c94e.pdf
    • http://webdisk.itgraduatefair.co.uk/uploads/1/3/0/6/130639347/7534141.pdf
    • http://foxgrove.tech/uploads/1/3/0/6/130640225/xatibodox.pdf
    • http://vanishedacres.com/uploads/1/3/0/7/130739983/8687451.pdf
    • http://anniescandy.com/uploads/1/3/0/5/130539341/130539341.html#how+to+change+text+box+text+color+in+adobe

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002c75.bin
9016eb018afc2fcb2acdbebb2064445355f117378022b6a6458b41fed08ec104		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C75 7516 bytes

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