Malicious PDF — malware analysis report

Static analysis result for SHA-256 e760414051be2016…

MALICIOUS

PDF

35.9 KB Authoring application: OpenOffice Draw First seen: 2020-09-24
MD5: 60c314bcd269d31bfef493f475420ed9 SHA-1: 1f4e8eb602fedc6c25b0e07649737d0aea4e1431 SHA-256: e760414051be20161b0e526a374fd06afb29b3fe95ca2a3bae91f2c3637aa1c5
152 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links to external PDF documents, as indicated by the PDF_SEO_LINK_FARM heuristic. This suggests a phishing or content distribution attack. The ClamAV detection of Pdf.Phishing.TtraffRobotInstall-7605656-0 further supports a phishing classification. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

Heuristics 3

  • ClamAV: Pdf.Phishing.TtraffRobotInstall-7605656-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.TtraffRobotInstall-7605656-0
  • 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.
  • 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://monsterhoops.com/uploads/1/3/0/2/130291531/mopegosogoroterabos.pdf In PDF document text
    • http://agentsrescue.org/uploads/1/3/0/6/130621850/2070325.pdfIn PDF document text
    • http://waruba.promalpkrd.ru/uploads/2020/01/29/102569.pdfIn PDF document text
    • http://msspadc.net/uploads/1/3/0/6/130639903/935e3ea01bca.pdfIn PDF document text
    • http://kowofe.mestoryonline.ru/uploads/2020/01/28/dbfbbfda.pdfIn PDF document text
    • http://missionhere.org/uploads/1/3/0/5/130590296/jotadaxogogag.pdfIn PDF document text
    • http://thejohnv.studio/uploads/1/3/0/2/130271150/komodajowelu.pdfIn PDF document text
    • http://allergy.mediutopia.com/uploads/1/3/0/4/130436197/130436197.html#canterbury+tales+prologue+pdf+answersIn PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000111a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x111A 8152 bytes
SHA-256: 0214f5fe571a061717a9fd7ec3f78b6b357b87a3a6fee86bd138295aad4ae440