Malicious PDF — malware analysis report

Static analysis result for SHA-256 378b253ec2c9220f…

MALICIOUS

PDF

31.1 KB Authoring application: LibreOffice
MD5: fce0668af18ce0b16b0b245a44820faf SHA-1: 0c28993656af6268d673e0dad7462df1356bcafd SHA-256: 378b253ec2c9220fbf905eb4679f1139756525a38c55d3eb9ee88c32c282adb4
150 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded URLs pointing to external PDF documents, a technique often used for SEO manipulation or to distribute further malicious content. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' and the ML classifier's high confidence score further support the malicious nature of this document. No scripts were extracted, limiting the analysis of direct execution behavior.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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://xosobavom.tarikat.ru/uploads/2020/01/29/mivew_fusudolujosuni_posekodonal.pdf
    • http://twalight.com/uploads/1/3/0/6/130603939/4a38e5d1.pdf
    • http://armquiz.com/uploads/2020/01/27/tusuzaw.pdf
    • http://thesunshinetomatocompany.com/uploads/1/3/0/6/130639116/80171bdf28.pdf
    • http://alessandramotterle.com/uploads/1/3/0/4/130478609/vuwexazojofu_wuwoxonuzi_nemukuxitupa_xuvavegasosaf.pdf
    • http://adeptwebsolutions.com.au/uploads/1/3/0/2/130287799/rivawi.pdf
    • http://breathingzonetech.org/uploads/1/3/0/6/130639398/8824138.pdf
    • http://tepu.ptk-soyuz.com/uploads/2020/01/28/jikufojeri.pdf
    • http://mestavstrech.ru/uploads/2020/01/28/ab76fa101f12e0.pdf
    • http://httpsite.info/uploads/2020/01/28/bomivowupibeko.pdf
    • http://psychastar.com/uploads/1/3/0/4/130489386/2002006.pdf
    • http://seizediem.com/uploads/1/3/0/2/130272580/130272580.html#oxford+platform+shoes+canada

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000012b3.bin
4514e762c7e575932831c6bdfc190ff71a9fc5aa81223be74aff17babeb1b59f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x12B3 8404 bytes

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