Malicious PDF — malware analysis report

Static analysis result for SHA-256 5bd95caa713e55db…

MALICIOUS

PDF

37.9 KB Authoring application: Inkscape
MD5: 04afab7e3bcd6ac5b9264a1abe242a94 SHA-1: 8821c0d380392668a80c1d7e8e1b7f4ce810b544 SHA-256: 5bd95caa713e55db053a6905484dc4ad6688c09cafb42d2c827622ad766dc102
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded links to external PDF files, a technique often used for SEO manipulation or to distribute further malicious content. The ClamAV detection and ML classifier strongly indicate malicious intent, likely related to phishing or unwanted content distribution. No scripts were extracted, but the embedded URLs are the primary indicators of compromise.

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://mandurahmustangs.com.au/uploads/1/3/0/7/130775145/a127e.pdf
    • http://catchnrelease.org/uploads/1/3/0/5/130550790/a6f7796e.pdf
    • http://www.ctcanines.org/uploads/1/3/0/6/130640219/wageja-fiduwipatizep-fudipuwuxopi.pdf
    • http://www.solvereadvisory.com/uploads/1/3/0/3/130379266/midadodajexuf_xurigawidexasu.pdf
    • http://cableinternetandphones.com/uploads/1/3/0/6/130639091/kegiduzodegodok.pdf
    • http://inform6.com/uploads/1/3/0/5/130547515/vaguw.pdf
    • http://carolineoliviaa.com/uploads/1/3/0/4/130435955/231156190f6b9f.pdf
    • http://charlottejackman.com/uploads/1/3/0/3/130323697/7655720.pdf
    • http://morganhomesliving.com/uploads/1/3/0/6/130620858/3067925.pdf
    • http://www.tessakonzal.com/uploads/1/3/0/2/130287407/1866890.pdf
    • http://www.abcswimschoolnaples.com/uploads/1/3/0/6/130620972/mugezotizupi.pdf
    • http://dwmfoundation.org/uploads/1/3/0/6/130603943/3937589.pdf
    • http://scms.org.uk/uploads/1/3/0/4/130488223/5723915.pdf
    • http://xciteautodetailing.com/uploads/1/3/0/6/130639656/c9dda155.pdf
    • http://johngarlich.com/uploads/1/3/0/2/130272328/9498987.pdf
    • http://webmail.meemar.com/uploads/1/3/0/7/130776454/5330530.pdf
    • http://mindfullmug.com/uploads/1/3/0/4/130488831/tunopidef.pdf
    • http://miracleinabucket.com/uploads/1/3/0/6/130604525/130604525.html#orthographic+drawing+third+angle

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003745.bin
3e1636281c30d8afc97d6c37f530b01e0ac277f975c6d8cb643c7c2cd1771cbb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3745 8052 bytes

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