Malicious PDF — malware analysis report

Static analysis result for SHA-256 988a619d732b4ff1…

MALICIOUS

PDF

47.8 KB Authoring application: Karbon
MD5: 1d916fd4d1a2d5d9ea35b76d347ef62e SHA-1: 665129852e6b7a58ade99c92b08c17c04903fa18 SHA-256: 988a619d732b4ff1c92f1e1bca479405dad1be5a788975c7f223316bb01852a2
150 Risk Score

Malware Insights

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

The PDF contains a large number of embedded external links, a technique often used for SEO poisoning or phishing. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' and the ML classifier output strongly indicate malicious intent. The primary attack pattern involves redirecting users to a network of suspicious PDF files hosted on various domains.

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://watercraftinspection.com/uploads/1/3/0/7/130739975/92a259f6.pdf
    • http://koala-d.com/uploads/1/3/0/6/130604520/xikorutuv.pdf
    • http://atrealtrump.com/uploads/1/3/0/6/130639939/xopizetajoxomuwo.pdf
    • http://cpanel.newenglandbusinesscenter.com/uploads/1/3/0/8/130814252/xolikufepetefutox.pdf
    • http://www.riverstonegallerycustomgifts.com/uploads/1/3/0/9/130969366/walofojofuritejexaf.pdf
    • http://www.loveusletters.com/uploads/1/3/0/2/130272945/lamexamawoj.pdf
    • http://gkinneydmd.com/uploads/1/3/0/5/130539049/nufuwiti.pdf
    • http://crowchildvetclinic.preview.pethealthnetworkpro.com/uploads/1/3/0/6/130640047/nemugobov-likebipixefi-kuriraga.pdf
    • http://houseofsteezy.net/uploads/1/3/0/5/130551864/nijopezepimuban-jogafixedezarib-rukasija.pdf
    • http://thelittlesleepyhead.com/uploads/1/3/0/7/130738679/visivezakenes.pdf
    • http://componentcatalog.dev/uploads/1/3/0/4/130483783/fobavuvi-vevar-metefiduzuzogo.pdf
    • http://mollymia.com/uploads/1/3/0/6/130640047/4775660.pdf
    • http://lifemoves20.com/uploads/1/3/0/6/130639045/130639045.html#engineering+geology+nptel+videos

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00000ecd.bin
d363ae9a75ec8106eca943b9b0d16c3e77f464533e3b2e80403c4a79b2447953		 pdf-font-stream PDF embedded font (sfnt) at offset 0xECD 7992 bytes

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