Malicious PDF — malware analysis report

Static analysis result for SHA-256 8babc44a406f8a7d…

MALICIOUS

PDF

35.6 KB Authoring application: ImageMagick
MD5: 273a6338cc3b24cd011f37912a7f9d00 SHA-1: 9452e7355461f1b2751f556f60253c2b7bd0ba64 SHA-256: 8babc44a406f8a7d12d27fea9e737f9eb3ff55e2dc961195b88912a7ae2795f3
152 Risk Score

Malware Insights

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

The PDF contains a large number of embedded URLs pointing to other PDF files, a technique commonly used to distribute phishing content or malware. The ClamAV detection as 'Pdf.Phishing.TtraffRobotInstall-7605656-0' and the critical heuristic 'PDF_SEO_LINK_FARM' strongly indicate a malicious intent to redirect users to potentially harmful content. No scripts were extracted from this sample.

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://campingdeberghoeve.com/uploads/1/3/0/7/130775529/donugoxeninapezokoka.pdf
    • http://partabcdeasyas123.com/uploads/1/3/0/4/130475932/dumojojamulavo-bilevunexiku-bejebazeniveba-pinekowife.pdf
    • http://mombligation.net/uploads/1/3/0/6/130621868/divefo.pdf
    • http://panaha.com/uploads/1/3/0/2/130289563/9732911.pdf
    • http://biggreatdata.com/uploads/1/3/0/3/130379844/3232743.pdf
    • http://standtogetherforsafety.com/uploads/1/3/0/7/130738784/7550608.pdf
    • http://mldesigns4u2.com/uploads/1/3/0/5/130551746/damutuzivukip-pixela-getutoxix.pdf
    • http://jameswallach.net/uploads/1/3/0/5/130588807/6308350.pdf
    • http://myazulwedding.com/uploads/1/3/0/5/130551639/3692266.pdf
    • http://tidyhangers.co.uk/uploads/1/3/0/6/130620792/09f4065.pdf
    • http://iot4d.co/uploads/1/3/0/2/130272988/mivivazunufagobu.pdf
    • http://themountainforge.com/uploads/1/3/0/6/130603985/812b637000c2d.pdf
    • http://zuanshixianshangyule.br3h.com/uploads/1/3/0/3/130379228/130379228.html#unsafe+abortion+who+2015

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000326a.bin
31606dbab52494f3b317a3f351a4253b71f1f85183df71580f9d71eb9193412b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x326A 8416 bytes

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