Malicious PDF — malware analysis report

Static analysis result for SHA-256 b419716612bec206…

MALICIOUS

PDF

39.5 KB Authoring application: PDFBox
MD5: d355fb611847c0129a2986e6e7534d22 SHA-1: 25ff0ad2476aa6606dfa466680fa828475f1bdb2 SHA-256: b419716612bec206e37c80fd72af1a0b9930e837e4bf28c4fbad20c3d7eeb221
150 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded external links, as indicated by the PDF_SEO_LINK_FARM heuristic. The ClamAV detection and ML classifier also flagged this file as malicious. The embedded URLs likely lead to further malicious content or phishing pages. 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://shambling-shimmies.com/uploads/1/3/0/6/130620783/sedotazato.pdf
    • http://bottomlesshole.com/uploads/1/3/0/6/130620472/wesetitasedijin.pdf
    • http://cares3dlab.com/uploads/1/3/0/8/130814516/5481924.pdf
    • http://neuroplastique.com/uploads/1/3/0/7/130739986/b0ab9.pdf
    • http://coalesceconsultants.com/uploads/1/3/0/3/130379341/6491876.pdf
    • http://www.solismartialarts.com/uploads/1/3/0/4/130483653/b6fb30.pdf
    • http://beatdiabetesnow.org/uploads/1/3/0/8/130813934/5d61d3466.pdf
    • http://www.carriepwalton.com/uploads/1/3/0/5/130589339/1860939.pdf
    • http://hostmaster.gemologicalinstruments.com/uploads/1/3/0/6/130621044/xetopobeg_lezibotusetudaj.pdf
    • http://leauxnicole.com/uploads/1/3/0/5/130588349/vipefujoko-somazapo-rufedivalopevu.pdf
    • http://criptohousepanama.com/uploads/1/3/0/4/130483741/fajewanebuw.pdf
    • http://rnrinc.org/uploads/1/3/0/6/130620689/vuturiniseme.pdf
    • http://progresshealth.org/uploads/1/3/0/6/130603965/nurop.pdf
    • http://chewoncakes.com/uploads/1/3/0/7/130739714/130739714.html#executive+personal+assistant+interview+questions+and+answers

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000041c5.bin
6a16d129df06c8338b64769ed3d84d8d4379385a09fa17985dc3d694c7706545		 pdf-font-stream PDF embedded font (sfnt) at offset 0x41C5 8008 bytes

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