Malicious PDF — malware analysis report

Static analysis result for SHA-256 3d989e764757cda9…

MALICIOUS

PDF

35.7 KB Authoring application: SWFTools
MD5: 08052e4cb2219c646fb24e262ba35f22 SHA-1: f82f0421257c1065ed31d2acda2d428973b2ac35 SHA-256: 3d989e764757cda98ae328628ae89982daa38a4ed2a8fbb611cba39c24dda567
150 Risk Score

Malware Insights

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

The PDF file was flagged by multiple heuristics, including a critical PDF_SEO_LINK_FARM rule and ClamAV detection as Pdf.Phishing.TtraffRobotInstall-7605656-0. The embedded URLs indicate a link farm strategy, likely intended to redirect users to malicious content or for SEO poisoning. No scripts were extracted from this sample, but the extensive list of external PDF links suggests a distribution or redirection mechanism.

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 https://kitowafarok.weebly.com/uploads/1/3/0/3/130379386/xezoge-lolaviroromavof.pdf
    • http://moscowhome-realty.ru/uploads/2020/01/28/bijolepexukidizijezi.pdf
    • http://labella1boutique.com/uploads/1/3/0/5/130588839/fca0dd2b5b.pdf
    • https://sotopikuko.weebly.com/uploads/1/3/0/5/130540683/loxufakova_sarozige_firuge.pdf
    • http://xajatawa.oknovmlm.net/uploads/2020/01/28/vananijulifalazefe.pdf
    • http://sardelas.ru/uploads/2020/01/28/d9789aeca1593fe.pdf
    • http://granitecountertopsdetroit.org/uploads/1/3/0/6/130604207/poligix_xavufaritole_gewubajinuka_wegafekufi.pdf
    • https://pelirevuj.weebly.com/uploads/1/3/0/5/130588517/7379044.pdf
    • http://basiccomputertutoring.com/uploads/1/3/0/6/130621509/4653438.pdf
    • http://myessentialguide.com/uploads/1/3/0/4/130477605/eeae5470.pdf
    • http://michelewestlaken.com/uploads/1/3/0/5/130551324/f4019fde315.pdf
    • http://daphnelovemusic.com/uploads/1/3/0/6/130620441/855702.pdf
    • http://cleaningservicesresidentialcommercial.com/uploads/1/3/0/6/130639603/xepexikagis.pdf
    • http://carmendaughertyphotography.com/uploads/1/3/0/5/130588343/vitedezidaruxozoja.pdf
    • http://nuobeijing.devsite-1.com/uploads/1/3/0/3/130379206/130379206.html#access+database+forms+missing

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001419.bin
ec8393b850aac7889638bdee313b8559b124a3a934d4a4761d088803244d75cd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1419 7636 bytes

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