Malicious PDF — malware analysis report

Static analysis result for SHA-256 b2dc51bbd8abf1fb…

MALICIOUS

PDF

40.0 KB Authoring application: Soda PDF
MD5: f091c80c1915c32722a0ed949ef68e04 SHA-1: ed7149d4f45a7a730abbf4f2afeed170394aa664 SHA-256: b2dc51bbd8abf1fbd74cea7dbac3592ff88aedc6034718835f68ccb733678d5b
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a large number of embedded links, as indicated by the PDF_SEO_LINK_FARM heuristic. The ML classifier and ClamAV detection strongly suggest malicious intent. The document body, though partially corrupted, contains references to these links, reinforcing the attack pattern of directing users to external resources. The primary goal appears to be a link farm designed to redirect users to potentially malicious content.

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://vanessacamino.com/uploads/1/3/0/6/130621740/42cd393a6211cb7.pdf
    • http://andreatomassi.com/uploads/1/3/0/5/130588382/5180534.pdf
    • http://sophievmakeupartiste.com/uploads/1/3/0/5/130588187/nerada.pdf
    • http://danielmachine.store/uploads/1/3/0/2/130291438/fatogomo-nuvavavarize-naxezonijamapip-disixezolafoki.pdf
    • http://natureexperiencetours.com/uploads/1/3/0/6/130604476/dexexoditimoxuzotijo.pdf
    • https://gexeruvafov.weebly.com/uploads/1/3/0/5/130588934/mumefiledugulo.pdf
    • http://sumabajide.holl.online/uploads/2020/01/28/xuropidawuluvome.pdf
    • http://sunlightsilverjewelry.com/uploads/1/3/0/5/130551114/zowin.pdf
    • http://thespeechteach.com/uploads/1/3/0/4/130488700/feranujezixuwut.pdf
    • http://chironetics.com/uploads/1/3/0/6/130620512/eb0285e7995.pdf
    • http://bebrandconfident.live/uploads/1/3/0/4/130483592/jurewirozavakutuxibu.pdf
    • http://rubymacfashion.com/uploads/1/3/0/6/130605248/2bd3c30e4f1561.pdf
    • http://catching-nature.com/uploads/1/3/0/6/130621451/lomegonuxenup_fofivema_vofabopir_resinof.pdf
    • http://historicbsl.com/uploads/1/3/0/4/130479210/4c3e2350481173.pdf
    • http://vejimod.uahim-dev.ru/uploads/2020/01/28/wenakidawatebuxaxu.pdf
    • http://blairkhartman.com/uploads/1/3/0/5/130588966/b10a95a7d05d9f.pdf
    • http://dogfriendlyrentalsonsanibel.com/uploads/1/3/0/6/130604203/kafozazafimir.pdf
    • http://med6.com/uploads/1/3/0/5/130551338/31d24510cbac.pdf
    • http://michiganlegalmalpracticequestions.com/uploads/1/3/0/5/130543976/jisesiju_legopuzimado.pdf
    • http://comedianambrosejones.net/uploads/1/3/0/6/130605168/9058892.pdf
    • http://mosnaturalhaircare.com/uploads/1/3/0/6/130604888/57756e0134a20.pdf
    • http://xivanuvap.plitkanavek.ru/uploads/2020/01/28/gozojiwen.pdf
    • http://blockchainitalia.online/uploads/2020/01/29/341baf3bdc.pdf
    • http://djspizza1.com/uploads/1/3/0/6/130603965/130603965.html#brahmastra+kannada+movie+song

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000173e.bin
9340d2fe06e8182d6ad942a4b8d5650c90deb5d573c2a475cb22a09db6feb20c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x173E 7804 bytes

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