Malicious PDF — malware analysis report

Static analysis result for SHA-256 19a4eee1bb934212…

MALICIOUS

PDF

36.2 KB Authoring application: Poppler-utils
MD5: f3930e4440c77a15c3040a6f89c2bc4b SHA-1: ff08fa2b6f4b35caa0ef5f59791bae4de23952f3 SHA-256: 19a4eee1bb934212a83dc90426501c36039617337670d8d9cd2f7f2ca3bedd70
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 hosted on various domains, a technique often used for SEO manipulation or to distribute further malicious content. The ML classifier and ClamAV detection strongly indicate malicious intent, classifying it as a phishing or malware distribution attempt. No scripts were extracted, but the sheer volume of outbound links suggests a coordinated effort to redirect users.

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://sanjoselimo.net/uploads/1/3/0/5/130588790/muxopamume.pdf
    • http://nhfd-dev-site.com/uploads/1/3/0/7/130775169/munitixazodiwabu.pdf
    • http://reneuhair.net/uploads/1/3/0/7/130776150/jafifu.pdf
    • http://www.panamericannano2017.com/uploads/1/3/0/8/130813401/9885343.pdf
    • http://technowldge-2.technowledge.com/uploads/1/3/0/6/130604419/zejevopuzuvaga.pdf
    • http://northernraiderstrackteam.com/uploads/1/3/0/3/130313339/nigijuki.pdf
    • http://workplaybook.com/uploads/1/3/0/3/130324170/vemisefag_jagelepodop_mitel_fasibofu.pdf
    • http://highhopesnetwork.net/uploads/1/3/0/7/130776646/9319354.pdf
    • http://grantluther.com/uploads/1/3/0/4/130483499/702677.pdf
    • http://americanstepdance.com/uploads/1/3/0/7/130776878/bosixolamukujal.pdf
    • http://sumner167.com/uploads/1/3/0/6/130605016/karuzutomitim.pdf
    • http://armstrong-family.rominastiebenphotography.com/uploads/1/3/0/5/130543840/130543840.html#bajaj+allianz+life+insurance+company+limited+policy+surrender+form

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000331b.bin
a32f3db7486e5646a296a4f7c91f7ae92b39b49dab6faa03005fe426fc2d3d0f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x331B 9016 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.