Malicious PDF — malware analysis report

Static analysis result for SHA-256 759ef72e279bc0cd…

MALICIOUS

PDF

41.1 KB Authoring application: Solid Converter PDF
MD5: 60faea35634f557e6086caa578537b29 SHA-1: adb860f7fbe332fb5125f6d5d5a9e6794d943a92 SHA-256: 759ef72e279bc0cd8902791705bdbc36d8c55c135661def12b5870102f441d8f
192 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF file contains numerous links to external PDF files, a technique often used in SEO link farms to distribute malicious content. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' and the ML classifier strongly indicate malicious intent. The document body, while appearing to be about coloring pages, is likely a lure to disguise the malicious nature of the embedded links.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

Heuristics 4

  • 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
  • PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINK
    PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
  • 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://coltsound.com/uploads/1/3/0/6/130620882/7328266.pdf
    • http://mydhfastmandat.com/uploads/1/3/0/2/130272370/3912ea63.pdf
    • http://realestatecareerjacksonvillenc.com/uploads/1/3/0/4/130488935/8bee9c06.pdf
    • http://rentinamericanfork.com/uploads/1/3/0/6/130621210/4902671.pdf
    • http://vibecbdtest.com/uploads/1/3/0/6/130604527/rosibotopup.pdf
    • http://phillipskruse.com/uploads/1/3/0/4/130489417/ba72a807c49e.pdf
    • http://sogeriti.service-accesspt.com/uploads/2020/01/29/abd732.pdf
    • http://us.momotombochocolatefactory.com/uploads/1/3/0/7/130739742/130739742.html#frozen+coloring+pages+a4+printable

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001119.bin
3737194dc0d4c7e677f07966f3a5bf90e37a8c613f5575f4be83a0546cde9131		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1119 8272 bytes

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