Malicious PDF — malware analysis report

Static analysis result for SHA-256 9a58d66840b5a93f…

MALICIOUS

PDF

40.5 KB Authoring application: Soda PDF
MD5: 2933458e337bec4a89a29c0e138fcea1 SHA-1: 82b25e023227c984e5a5d0504ce24a7ddf8e490a SHA-256: 9a58d66840b5a93f5cb42309a65ad96272f5fb010baf623a3bf3fcf2b92676f7
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF was flagged by multiple heuristics, including ClamAV and an ML classifier, as malicious. The PDF contains a large number of embedded external links, characteristic of a link farm used for SEO manipulation or phishing. The primary heuristic indicates a 'PDF_SEO_LINK_FARM' which suggests the document's purpose is to direct users to external malicious PDFs. No scripts were extracted, but the embedded URLs are the primary indicators of malicious intent.

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 http://duckcreekgolf.com/uploads/1/3/0/6/130639242/gavow.pdf
    • http://alexploreonline.com/uploads/1/3/0/7/130775009/sigawixito.pdf
    • http://captivated.blog/uploads/1/3/0/5/130540493/lerisif_popepagujitew.pdf
    • http://poeball.net/uploads/1/3/0/2/130270833/5905912.pdf
    • http://thelackawaxenmusicfestival.com/uploads/1/3/0/6/130604799/26dccce.pdf
    • http://mysmelt.com/uploads/1/3/0/7/130739074/rusewalaz_nexuzomuzusab_tujakixozi_bivukaxiv.pdf
    • http://krsc.net/uploads/1/3/0/6/130604770/wosavukivi.pdf
    • http://dididothat.net/uploads/1/3/0/4/130476688/rupixul.pdf
    • http://mileoneinc.com/uploads/1/3/0/7/130775510/4855256.pdf
    • http://musicatkhs.com/uploads/1/3/0/5/130539238/kebat_vatoxiwonizo_legekabo_towilulam.pdf
    • http://joshuasandefur.net/uploads/1/3/0/7/130738716/4702a.pdf
    • http://juliejesternewman.com/uploads/1/3/0/3/130313507/130313507.html#principle+of+biuret+assay

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001311.bin
4d7357a4021a20ec9892e211f48aafdab29ac32bad09dcb822353062c9e446a6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1311 9604 bytes

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