Malicious PDF — malware analysis report

Static analysis result for SHA-256 f90efed9f5cbff59…

MALICIOUS

PDF

41.5 KB Authoring application: LibreOffice
MD5: f7a357ac9a8f4556e106d4000949b956 SHA-1: ba6319f157bed757caf17f53c9cdcefd469b0743 SHA-256: f90efed9f5cbff59d974b6d252b4096de6171339c041a7de50169a4239c897e7
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 detected by the PDF_SEO_LINK_FARM heuristic. This suggests a phishing or SEO manipulation campaign. The ML classifier and ClamAV also flagged this file as malicious, with ClamAV identifying it as Pdf.Phishing.TtraffRobotInstall-7605656-0. The document body content is heavily corrupted and unreadable, providing no additional context.

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://judson96.org/uploads/1/3/0/3/130312937/6035410.pdf
    • http://bigben.site/uploads/1/3/0/3/130324063/besotule.pdf
    • http://puzzlescleaning.com/uploads/1/3/0/6/130604046/wilukaviromor.pdf
    • http://www.cwbcellijay.org/uploads/1/3/0/5/130588282/42e8dfa0b.pdf
    • http://naturetherapycic.com/uploads/1/3/0/5/130588266/gamojisaguripuxuwowi.pdf
    • http://vfrcflorida.org/uploads/1/3/0/6/130603834/1471351.pdf
    • http://victoriajsmith.com/uploads/1/3/0/2/130289232/6259800.pdf
    • http://allentucker.org/uploads/1/3/0/3/130379423/zawepepap-mivireturewine.pdf
    • http://lucid-labview.net/uploads/1/3/0/7/130739934/9b772f6e2.pdf
    • http://skitheoutdoors.com/uploads/1/3/0/6/130604111/zamoweseguvisoxuf.pdf
    • http://100percentmaintenance.com/uploads/1/3/0/7/130739366/juzalupobunifa.pdf
    • http://ceph-support.org/uploads/1/3/0/7/130739141/gofobexafen.pdf
    • http://stmargaretbiglake.com/uploads/1/3/0/3/130323355/695473.pdf
    • http://p9jzm.slpny.com/uploads/1/3/0/4/130488085/130488085.html#gta+v+cheats+xbox+one+spawn+tank

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000049c9.bin
746f4a1d1b2e1e9b6d3c0965cf564b542cd9c8fd5aaf477c0f9e52a3c59cab41		 pdf-font-stream PDF embedded font (sfnt) at offset 0x49C9 7956 bytes

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