Malicious PDF — malware analysis report

Static analysis result for SHA-256 e3fbbda744117a76…

MALICIOUS

PDF

48.6 KB Authoring application: Soda PDF
MD5: 23171b80fda21f6db27a00157c74d3ac SHA-1: 4d9f593fd164a111e6538e223971a2e8d3b1bde2 SHA-256: e3fbbda744117a7642629e09c2cea2d3d86f8af1cf2d1be0568fd9262c401e81
152 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded external links to other PDF files hosted on various domains. This behavior is indicative of a link farm or redirection scheme, commonly used in phishing or malware distribution campaigns. The ML classifier and ClamAV detection strongly support its malicious nature. The document body, though heavily obfuscated, contains some of these URLs, reinforcing the attack pattern.

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://productionriggingdepartment.com/uploads/1/3/0/2/130289799/ruwojepeta_jelibasove.pdf
    • http://debndaveswedding.com/uploads/1/3/0/6/130604327/96208413199.pdf
    • http://rebeccaattia.com/uploads/1/3/0/5/130590399/9322205.pdf
    • http://paperbirchyoga.com/uploads/1/3/0/5/130544190/wegozowamosexalarew.pdf
    • http://bamestate.com/uploads/1/3/0/6/130621470/siteguxuda.pdf
    • http://myleafandcompany.com/uploads/1/3/0/4/130488320/7392002fa.pdf
    • http://thetri-fectagroup.com/uploads/1/3/0/2/130272509/nabarujobabazeduto.pdf
    • http://greensboromusicteachers.org/uploads/1/3/0/6/130639676/2476078.pdf
    • http://waffledaze.com/uploads/1/3/0/6/130639368/nujegijolejariri.pdf
    • http://chickflickguide.com/uploads/1/3/0/4/130490915/badagaxawugi.pdf
    • http://dmnroundtable2020.com/uploads/1/3/0/5/130590096/7845511.pdf
    • http://destinationdesignreunion.com/uploads/1/3/0/5/130588980/fatiwofibomenavuna.pdf
    • http://chewoncakes.com/uploads/1/3/0/8/130814871/130814871.html#chiari+malformation+physical+therapy

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000130f.bin
3db0ea77990a1e1004d73c4f54ec602d5c14996adc346d2ce69bda2bd5753418		 pdf-font-stream PDF embedded font (sfnt) at offset 0x130F 8224 bytes
font_01_sfnt_off00008334.bin
e91619dfd4c72a85464d95ef1ba4e67df13020651c42071bafbe521a61d9f7fc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8334 2652 bytes

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