Malicious PDF — malware analysis report

Static analysis result for SHA-256 a8d71371f44124a6…

MALICIOUS

PDF

38.9 KB Authoring application: Inkscape
MD5: 0836f450be61293bd129466b92062ec4 SHA-1: 80aca09eefa756a6c6fbe9eff97e263a82b19c72 SHA-256: a8d71371f44124a634ae983b3d1e9cb024b8977f6b94f841d6b922a3f8250b97
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious File

The PDF document contains a mass of external links to other PDF files, disguised as a Maserati owner's manual. This technique is indicative of a phishing or malware distribution campaign, aiming to trick users into downloading further malicious content. The ClamAV detection and ML classifier strongly support its malicious nature.

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://ninjadiveteam.com/uploads/1/3/0/2/130288359/ribesetej.pdf
    • http://pemej.copyrightcontact-1000002341578.com/uploads/2020/01/28/e1477fe0388e815.pdf
    • http://tminz.net/uploads/1/3/0/4/130476200/lemiwunel-zexojanazuju-pusizifiterunep.pdf
    • http://dasignsuorce.com/uploads/1/3/0/2/130289346/c9ece8d114.pdf
    • http://mileoneinc.com/uploads/1/3/0/6/130620631/noreledewixegafegofi.pdf
    • http://yourdedicatedtravelagent.com/uploads/1/3/0/6/130639161/6496066.pdf
    • http://nicholemannion.com/uploads/1/3/0/4/130476697/e37164f0e0c66ff.pdf
    • http://missionroadsdachurch.com/uploads/1/3/0/6/130604948/zinalof.pdf
    • http://demitrydevelopment.com/uploads/1/3/0/7/130776485/nuvolixaxixexinapar.pdf
    • http://msxgear.com/uploads/1/3/0/5/130551116/xemodedenel-moropepujudus.pdf
    • http://carsonnissanblog.com/uploads/1/3/0/4/130436140/fadugilesexoxan_pinasimiwip_vodezebewiru_xejanolij.pdf
    • http://blockchainambassador.ca/uploads/1/3/0/6/130620633/130620633.html#2014+maserati+granturismo+sport+owners+manual

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000013de.bin
24db17bb4eec45b81ae8d58ef8d44ba7b526d66df14ae37e484255da8e5b0940		 pdf-font-stream PDF embedded font (sfnt) at offset 0x13DE 9444 bytes

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